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Chumpy
02-17-2008, 07:23 AM
HI all,

You may recall my previous thread, regarding electrical probs...
http://www.bimmerfest.com/forums/showthread.php?t=259603

Basically, one day I unlocked my E66, and the windows dropped and the sunroof opened. I started the car, and the mileage read 999999 on the odometer. Each time I took the key out of the ignition, the windows dropped, and sunroof opened.
I took the car to BMW dealer, and they charged me 200 to tell me they didn't know what the problem was. I made a bit of a fuss, and they told me they had 'fixed' the problem, by disconnecting the battery, and then reconnecting it.

On the way home from the dealers, my car reported "Drive system failure - Drive moderately".
Over the next few journeys, this message appeared intermittently.
Today, the car reported the same error, along with a bunch of others, relating to parking brake failure, and others which I cannot recall. Within seconds of these errors being reported, the errors cleared from the 'Check' section on Idrive - without even stopping or starting the engine.
I continued along my journey, and the car continued to intermittently report 'Drive system failure', and also the 'check engine' symbol on the dash would illuminate, and the engine would stutter - as though the ignition had cut out for under a second, and 'restarted'.
As I was doing around 70mph on a motorway (highway), the car was acting erratically, and appeared to have an electrical fault causing the ignition to cut-out, and then restart almost instantly. The engine symbol on the dash would also illuminate for a second or so, during this period.

Does anyone have any suggestions regarding a possible cause of the problem?
My battery is old, but still throws out 12.1v with the engine off. There is 14.8v in the system with the engine running.
The battery always starts the car, and I would have thought a suspect battery would have had trouble starting the car (??)

Someone suggested a possibly 'grounding / earthing' electrical problem..... How do I check / fix?

Could it be a software issue?

Any help at all appreciated.

Thanks

johndade
02-17-2008, 10:20 AM
with all those faults coming on sounds like you have a software issue at the very least.Sounds like a trip to dealer.

Chumpy
02-17-2008, 10:38 AM
Thanks for the reply.

The first time I went to the dealer, they were clueless. They said they didn't know what the cause of the problem was, because the computer didn't report anything. They recommended I should change the dash cluster, as it showed an error - probably because it showed 999999 miles!!!
Now, however, its reporting all sorts of problems..... including an ignition issue.... when you're doing 70mph, and the steering goes heavy because the engine dies.... its worrying!

Anyone think it could be a battery issue? A lot suggested this initially....

Call Me Daddy
02-17-2008, 11:10 AM
I do think this is a battery issue - my friend once had a similar exeprience on a much less sophisticated vehicle displaying similair characteristics, and it turned out to be a battery cable. May be a short, but running that down would be a nightmare. I would go out and pull off the battery cables, inspect and clean the terminals, and make sure they are on TIGHT.

Seems like if it was a specific problem, the computer would record a fault.

Good luck.

Chumpy
02-19-2008, 12:27 PM
Another update on this one......

I found the battery terminals not tight, and tightened them up.
I went out in the car, and got around 10miles away from home, when I got the "Drive Control system failure - Drive moderately" error.

Within seconds the engine started to stutter again, and stall.
I pulled off the motorway, and attempted to turn around.

The car stuttered badly, and the engine was obviously being starved of electricity. The rev counter kept dropping, and the dials were resetting (showing the 'cold' meters around the rev limiters).

I limped the car to the side of the road and called for breakdown recovery.
The recovery arrived, and using 'non-bmw' specialist equipment found no OBD codes (although there may be some recorded only accessible with BMW kit).

Whilst waiting, and with the engine off, I noticed the 'START/STOP engine' button flickering.
It was flickering pretty erraticly. I started the engine, and the engine was dying in line with the flickers from the 'START/STOP' button flickers.

So.... I'm thinking it may be a problem with this button mechanism (given as the key now once again reads 999999, and my windows drop again!).
Is this the CAS module?
Does anyone think it may be this?

Could it be that the whole bus is being starved of power? or possibly a faulty CAS module which is giving me ignition issues?

Very strangely, when I got home, I started the car, and it idled perfectly - no blips no problem.
Seems like the problem is very intermittent, and possibly only occurs when the car has run for a number of miles (??) - Still a bit baffled, but my dealer was pretty clueless when I went to them the first time.

Any advice appreciated.

Thanks

AZIPOD
02-19-2008, 01:25 PM
I'm not a mechanic ... but I'm guessing it has something to do with the electrical system. You confirmed that the battery cables were not on tight. . this is a problem. Since the car is heavily reliance on power... the fact that you connected the battery secured to the cable caused the car to act up. Perhaps the car needed to reset itself.

Since your battery cable is properly attached now... and your car had time to "reset" itself... I would suggest you drive your car around the house and see if it acts up again. If it doesn't, you probably found your problem.... which was the battery cable.

Chumpy
02-19-2008, 01:40 PM
Thanks for your reply.
Sorry, it may be unclear.
After my first post on this thread, I tightened the battery connections, and also hoped this had resolved the problem.
However, I made the post tonight (latest post), and it didn't resolve the problem. The car had an electrical problem, that was affecting at least the ignition system, and possibly others.
The problem appears to be that no error codes are being logged, although the Idrive was reporting many errors from Drive Control system failure, Dynamic drive failure, parking brake failure etc.

I just don't know if the bus is at fault, or a device along the bus, or the main power supply (battery?)
The battery starts the car with no problem, so it would appear strange if its that.

Any help appreciated.

TL2E90
02-19-2008, 07:11 PM
It looks to me more like a CC (central computer problem) but again even a faulty ground connection can mess up things really bad.
If I were you I'd take the car back to the stealer (oops...meant dealer) and ask him specifically to run a diagnostic and retrieve all faulty codes. Since you've been dealing with so many problems I bet that your car's buffer is filled up with error codes.
Also ask your dealer to check and confirm all ground connections in your car.
I'm pretty sure that with a proper set of diagnostic tools, patience and knowledge your dealer shoud get to the bottom of this. Good luck!

Chumpy
02-21-2008, 11:32 AM
Thanks for the reply.
The problem is; the guys at my dealers don't seem to have much of a clue if the computer doesn't tell them where the fault is. They just seem like glorified fitters! If the computer says something is wrong, they will change that bit, if not - they're useless!

Dealer charged me 130 to investigate, and then called me to say they didn't know what the issue was. They made me pay the 130 to get my car back, even though they never diagnosed anything!

745ByMySide
02-21-2008, 11:45 AM
Loose battery connections can sometime fry the computer or control module. The electronics in these cars need a constant and "steady" source of power, so if your battery connections are loose they will fry your electroncs. The dealer should be able to diagnose each control module and computer for faults, it sounds like bull $h1t that they can not find the problem when it's signs are clearly visible.

harjothundal
02-21-2008, 11:48 AM
perhaps you should carry a video camera with you to record the trouble the next time it occurs...

745ByMySide
02-23-2008, 07:08 AM
Any updates chumpy??

Chumpy
02-23-2008, 07:27 AM
None I'm afraid.
Trying to get my money back from the dealer who has not diagnosed the problem!

Trying to get Carsoft to work, to see if it reports any errors.
When I connect, Carsoft reports
try to connect (the diagnostic cable reports:-->Bad communication)

Anyone any ideas?

745ByMySide
02-23-2008, 08:43 AM
I'm not too familiar with carsoft but I would check the options and make sure the right port is selected.

Chumpy
02-23-2008, 11:11 AM
OK - I managed to get it working, and its showing loads of errors!!!
Surely all these things can't be wrong? Surely something central has to be throwing these errors on all these ciruits?

Does anyone have a view?

Does anyone know where I can find descriptions to the codes, which are not described?

Any help appreciated.

Errors reported are:

DME/DDE
2889 - Not described.

Instrument Cluster
931C - Display - Heating (whats this?)
A3B6 - Condition Based Sevicing
A3AD - Engine Data
E111 - Not described.

SIM - What does this do?
9487 - Not described.
93DF - Voltage to low

ABS/ASC/DSC
5F0E - Steering Angle sensor wheelhouse
5EC7 - Not described.

EGS - What does this do?
4F4C - Symptom gear control
51AC - CAS identification signal missing

CAS
A0B0 - Brake light not plausible

Also errors reported on HKL system (what is this?), but I don't know how to get the codes out of Carsoft for this.

Call Me Daddy
02-23-2008, 11:29 AM
I would try to PM that info to BMW_Tech and beg for his help. I bet he can solve that one in about 5 seconds.

asci01
02-23-2008, 01:18 PM
Here you go.

The HKL control unit controls the automatic opening and closing of the trunk lid.
It operates in conjunction with the CAS and the PM (Power Module) and is networked in the K-CAN-P bus.
The HKL is located in the right rear corner of the luggage compartment.
The Power Module controls the operation of the trunk lid lock and the soft close assembly as well as signalling (over the K-CAN-P) the requests for opening and closing the trunk from
the external trunk button.
The CAS provides the HKL with the request for opening the trunk from the Remote Control system as well as the passenger compartment trunk button.

Chumpy
02-23-2008, 02:36 PM
Thanks for the response.

Do you have any idea what could be the root cause of my issue?

Where did you get the PDF document? They're very useful. Would be good to get a few of them together. Can you point me in the right direction?

Thanks

sunny_j
02-23-2008, 07:09 PM
chumpy dont you think its time to let the car go. you seem to be having alot of problems.

diznik007
02-23-2008, 07:37 PM
chumpy dont you think its time to let the car go. you seem to be having alot of problems.

+1 - I would of left that thing on a city corner with the keys in the door. insurance can be a good thing.:thumbup:

Chumpy
02-24-2008, 12:25 AM
That would suggest you guys think its more than a battery problem?

+1 - I would of left that thing on a city corner with the keys in the door. insurance can be a good thing.:thumbup:

diznik007
02-24-2008, 01:06 AM
i really don't have the slightest clue what the problem could be. the 7 is more complicated than a car should be IMO. i just think that w/ all the error codes and problems your experiencing, it definitely needs to go to the dealer. i don't think a battery swap will do the trick (but I could be wrong). it doesn't sound like somethng you'll be able to tackle on your own. personally, i would raise hell w/ the dealer that you paid 200 and claimed they fixed the problem by disconnecting the battery. tell them you are genuinely scared to drive the car and if anything happens while you happen to be cruising at 100km/hr, they will be held responsible since they told you the problem was fixed and all was OK with your car. i wouldn't drive off the bmw lot until they had every error code/problem fixed. is there a lemon law in the uk?

BMW_tech
02-25-2008, 12:35 AM
OK - I managed to get it working, and its showing loads of errors!!!
Surely all these things can't be wrong? Surely something central has to be throwing these errors on all these ciruits?

Does anyone have a view?

Does anyone know where I can find descriptions to the codes, which are not described?

Any help appreciated.

Errors reported are:

DME/DDE
2889 - Not described.

Instrument Cluster
931C - Display - Heating (whats this?)
A3B6 - Condition Based Sevicing
A3AD - Engine Data
E111 - Not described.

SIM - What does this do?
9487 - Not described.
93DF - Voltage to low

ABS/ASC/DSC
5F0E - Steering Angle sensor wheelhouse
5EC7 - Not described.

EGS - What does this do?
4F4C - Symptom gear control
51AC - CAS identification signal missing

CAS
A0B0 - Brake light not plausible

Also errors reported on HKL system (what is this?), but I don't know how to get the codes out of Carsoft for this.


There is a smart guy that stated battery issue and he may be right by what these faults suggest.If you had the battery replaced,it's very important that they register battery replacement to rid of the faults in SIM.It seems like you have CAN faults stored in CAS/DME/EGS/DSC/etc..one of these modules caused the BUS to go down or RESET at one point or perhaps currently present.A CAN fault analysis would determine wether it is caused by a module or battery state of health.Unfortunately without a diagnostic tester and a technician that knows what to look for and tests to perform,a simple analysis that would dictate the outcome of the fault in the CAN (communication) would become useless.I would look into the CAS and Instrument cluster closely as they are the center of CAN communication.HKL is the least of your worries,you dont need the trunk to open/close with a push of a button if your cluster is lit up with faults.If I could only beam myself to you,I would.It sucks wanting to help with limitations,it sucks even more when all I can do is give advice and information instead of fixing it.My sincere apologies.

Chumpy
02-25-2008, 01:29 AM
Thanks for the reply.

I have not had the battery replaced, its actually still the original from the car, so over 5 years old, but still starts the car no problem, and throws out over 12v.

The problem is intermittent, but when it was present, the car would start and then die, and the START/STOP button was flickering, almost like a loose connection somewhere.
Could a bad device on this bus cause it to reset?

Is there a tool for testing the CAN bus?
Is the CAN bus powered centrally from somewhere, or does it get its power from the devices on it?
Would a reset on the CANbus cause the START/STOP button to flicker? Or is a flicker from the START/STOP button light more likely to be power related, than data on the bus?

BMW_tech
02-25-2008, 02:10 AM
Thanks for the reply.

I have not had the battery replaced, its actually still the original from the car, so over 5 years old, but still starts the car no problem, and throws out over 12v.

The problem is intermittent, but when it was present, the car would start and then die, and the START/STOP button was flickering, almost like a loose connection somewhere.
Could a bad device on this bus cause it to reset?

Is there a tool for testing the CAN bus?
Is the CAN bus powered centrally from somewhere, or does it get its power from the devices on it?
Would a reset on the CANbus cause the START/STOP button to flicker? Or is a flicker from the START/STOP button light more likely to be power related, than data on the bus?

Yes,the flicker would be a CAN related problem.Your CAS may be faulty causing mileage display 99999 which was a known SW issue on 2002 model year only.CAN bus analysis can only be performed using the GT-1.It performs analysis on which module communicated at the very least.Try another extended battery reset before bedtime and reonnect the battery in the morning.If symptoms persists,its time to bring it to the experts.If they need further info or you have any questions,just PM me or post it here and I will do my best to help.Main thing is to get the actual BMW fault codes and performing all the relevant test plans suggested by every fault.This procedure is like turning over every rock until you find it.

Chumpy
02-25-2008, 02:16 AM
Thanks for the reply.

Can you confirm where the CAS module is? I believe the key socket connects to the CAS ECU via a ribbon cable, and someone suggested pushing this tight (?)
Also, is there a way of finding which SW versions should be on each module, as I have managed to get Carsoft to read some data, and would like to compare my versions with the latest available.

Also, do you have details of the SIB that says about the mileage being 999999?

Would you think it is something resetting the CANbus? ie. a data issue on the CANbus, rather than a power supply issue?

Thanks again

BMW_tech
02-25-2008, 08:12 AM
Thanks for the reply.

Can you confirm where the CAS module is? I believe the key socket connects to the CAS ECU via a ribbon cable, and someone suggested pushing this tight (?)
Also, is there a way of finding which SW versions should be on each module, as I have managed to get Carsoft to read some data, and would like to compare my versions with the latest available.

Also, do you have details of the SIB that says about the mileage being 999999?

Would you think it is something resetting the CANbus? ie. a data issue on the CANbus, rather than a power supply issue?

Thanks again

I have ran across this similar problem and condition where reprogramming and registering battery replacement took care of the problem.In your situation I would perform a battery test using the MIDTRONICS after performing what I stated as CAN fault analysis.It is possible to have a weak/dead cell even if it shows full voltage.The SIB is only for 2002 models software errors corrected by PROGMAN.It is irrelevant simply because of the model year and the difference within its sub-systems.I would suspect the CAS as the culprit but look into the SIM which is the brain of all operation/communication.Give me test results and fault conditions and we can determine the problem/cause/and correction.

Chumpy
02-25-2008, 08:23 AM
Thanks for the reply.

My car is also a 2002 car, so would the SIB be relevant?

I've managed to capture the problem on some video, so will upload this to a server soon, and post links.
Thanks for the help.

Chumpy
02-25-2008, 10:45 AM
OK - I've managed to capture the actual problem on camera. Not great quality, but at least it should be visible what happens.

I ran the car for around 20 minutes, and it was fine.... then, the Drive Control System failure came on, and within 1-2 minutes, the car began to mis-fire, and stall.

I managed to limp back home, and grab a small camera to take these details.

FILE1 - Click to download / Play File 1 (http://pkaspinall.pwp.blueyonder.co.uk/E66probs/CIMG0217-1.wmv)
This first file starts as the car had just stalled. You can see the Drive control failure reported on the Idrive, and then the car restart, but drop out again. You can also see the flickering on the START/STOP button

FILE2 - Click to download / Play File 2 (http://pkaspinall.pwp.blueyonder.co.uk/E66probs/CIMG0218-1.wmv)
This is a few minutes later, and the START/STOP button is still flickering.
I do not press the accelerator at all with my foot, but you can hear the engine revving to prevent itself from stalling. The revs dip at the same time the light flickers, almost as though the whole engine gets staved of power, when the light goes out. The engine stalls.

FILE3 - Click to download / Play File 3 (http://pkaspinall.pwp.blueyonder.co.uk/E66probs/CIMG0219-1.wmv)
This is another few minutes later. You can see the key holder, and START/STOP buttons flickering, with no engine running at all, and no key inserted.
I can guarantee if I tried to start the car with this flickering it would stall.

FILE4 - Click to download / Play File 4 (http://pkaspinall.pwp.blueyonder.co.uk/E66probs/CIMG0220-1.wmv)
I performed a battery reset (just disconnect and reconnect a few minutes later). The whole system threw its toys out, and was reporting problems with starter motor etc etc.
Still the START/STOP button is flickering, and error on Idrive shown.

FILE5 - Click to download / Play File 5 (http://pkaspinall.pwp.blueyonder.co.uk/E66probs/CIMG0222-1.wmv)
I performed another battery reset (just disconnect and reconnect, but left the battery off for around 15 minutes). This time the car starts, and revs, and idles perfectly....
No problems reported on Idrive, no flickering from START/STOP, but the mileage now displays 999999 again!!! BUT, the windows stay up this time when the key is removed!


Could the CANBus be getting a reset signal from a bad device?
My initial problem was that the car showed 999999, and the windows dropped. I took it to the dealer with this, and they said they recoded the Dash Cluster, but the error still existed. They then did a battery reset.
Could it be that they updated the software for the dash cluster, and its now incompatable with the rest of the devices on the car? Do I need to update the whole car now?
I never had any problems with ignition or Drive control system etc., prior to the dealer recoding the dash in an attempt to fix the mileage reading 999999, and the windows dropping.

Any help / ideas appreciated.

Thanks

745ByMySide
02-25-2008, 12:47 PM
Good job on the vid Chumpy. I would love to say that this is still a battery problem, but I think it might be something a little more serious, like the main computer. My friend has a 2007 ML350 Mercedes and he started off with similar problems like his Lift Gate kept opening by itself, car starting and dying etc. so they changed the main computer. I personally think your main computer is fried out, or just slowly dying. I think I read somewhere (maybe in this thread) BMW-Tech saying something about water getting to that computer in the trunk due to the water drains getting clogged and it happens only with the 02's, it's worth giving that a look.

Chumpy
02-25-2008, 12:56 PM
Thanks for the reply.
Its good to know people are kind enough to offer help, even though this problem is a pain in the a55!

I'm wondering what step to take next. To my mind (and its only educated guessing really, which is what my dealer wants 135($270) / hour for), I am thinking the following:
- I think they may have updated the code in the Dash, when I took it in with it reading 999999 miles. I never had any problems with ignition (or maybe DME) prior to this.
- I am thinking I may go for a full software upgrade, as BMW_Tech said there was an issue on the 2002 models, and my car is 2002.
- The first problem on the car is always "Drive Control system failure - drive moderately", and within a few minutes the engine begins to die.... Either this is because something then tries to reset the bus (possibly because of a software issue)?
- The system responsible for "Drive control system failure" seems to report a problem with the Steering angle sensor (from my Carsoft investigations..... don't have the BMW code... they said it reported nothing!!!)
- Maybe I should try a replace of the Steering Angle sensor which may prevent a problem with the the DME problems which happen once this has 'triggered'. Is this a big job?

Do you agree we can rule out battery? I am fairly sure its not battery, as it throws the car over very easily, and has plenty of power.

Thanks again

PS - 745ByMySide - My car is identical to yours!! Its the same colour, 745Li, Style 32 20" wheels! - Nice cars when they work!

745ByMySide
02-25-2008, 01:54 PM
Speaking of steering angle sensor, I had my car in last week for service and they did a lot, one of the items says, "performing steering angle sensor adjustment" so maybe adjusting it would help.

p.s. these cars are great, especially our color combo. Don't worry, give it some time and everything will be back to normal again. I def. suggest a software upgrade, they upgraded all of my software last week and the car seems better, engine starts and drives smoother too.

BMW_tech
02-26-2008, 01:24 AM
SI B 61 13 02

SUBJECT
2002 MY Various Electrical Complaints Caused by Software Errors

MODEL
E65, E66 (7 Series) up to 9/2002 Production

The following software errors were corrected with the release of Progman 20.00.00 (Target Data Status E065-05-09-820)

The red airbag warning light is illuminated. The following STVR and STVL pressure sensor faults are stored:

9676/96F6, 9673/96F3, 9672/96F2, 9662/96E2. Refer to SI B65 35 05 for further information.

The following software errors were corrected with the release of Progman 16.0 (Target Data Status E065-05-03-810)

Airbag Warning light is on and one or more of the following faults is stored:

Safety Information Module (SIM) FC 93b4 "Self test no message"

Switch Center, Steering Column (SZL) FC 94b4 "Self test no message"

Switch Center, Steering Column (SZL) FC 94c3 "Self test too few messages"

Satellite A Pillar Left (SASL) FC 9542 "Self test too few messages"

Satellite A Pillar Right (SASR) FC 95c2 "Self test too few messages"

Satellite Left Front Door (STVL) FC 9642 "Self test too few messages"

Satellite Right Front Door (STVR) FC 96c2 "Self test too few messages"

Seat Satellite Drivers Side (SSFA) FC 9742 "Self test too few messages"

Seat Satellite Passengers Side (SSBF) FC 97c2 "Self test too few messages"

Satellite B Pillar Left (SBSL) FC 9842 "Self test too few messages"

Satellite B Pillar Right (SBSR) FC 98c2 "Self test too few messages"

Seat Satellite Rear Seat (SSH) FC 9a42 "Self test too few messages"

Satellite Vehicle Center (SFZ) FC 9ac2 "Self test too few messages"

The following software errors were corrected with the release of CIP 13.2 (Target Data Status 6.76C)

Currently there is no software corrections related to this CIP version

The following software errors were corrected with the release of CIP 10.2 (Target Data Status 6.76A1)

The airbag warning light may be on with one or more of the following faults stored.

Satellite Left Front Door (STVL) FC 9628, Satellite Right Front Door (STVR) FC 96A8, "Processor Reset".

Satellite Left Front Door (STVL) FC 9641, Satellite Right Front Door (STVR) FC 96C1, "Control Module Fault".

Satellite Left Front Door (STVL) FC 962A, Satellite Right Front Door (STVR) FC 96AA, "Internal Control Module Fault".

The following software errors were corrected with the release of CIP 10.0 (Target Data Status 6.76A)

The airbag warning light is on. SZL FC 94EA "Steering Wheel Module communication" is stored. This fault may return after updating the vehicle software using CIP8.2 or higher.

The gong intermittently fails to sound for all gong functions.

The following software errors were corrected with the release of CIP 9.2 (Target Data Status 6.76)

Hesitation on acceleration from a stop.

After placing a telephone call (CPT8000) and leaving the iDrive in the communication menu, the iDrive is ineffective when returning to the vehicle.

Emergency transmission program when engine is started, EGS FC 4FB2 internal fault 3 (watchdog).

When the engine is switched off the warning "The transmission automatically shifts to P when the engine is switched off. Please consult your BMW center as soon as possible" is displayed. EGS FC 51AC (CAN ID sensor inserted) is stored.

The following software errors were corrected with the release of CIP 8.2 (Target Data Status 6.75A)

The airbag warning light is on. The following fault codes are stored in fault memory, STVR 96E2, and STVL 9662 "communication pressure sensor" sets at low ambient temperatures.

If a destination was stored in the SVS address book and is recalled, a new destination, which was not previously stored, is adopted and the system initiates route guidance for that destination.

The airbag warning light is on. SZL FC 94EA "Steering Wheel Module communication" is stored. If the fault returns after updating the vehicle software using CIP8.2 or higher, replace the "Steering Wheel Electronics" control module.

After a brief interruption of the audio system (MOST bus reset), the volume adjustment switches to a louder/quieter setting.

Radio stations stored in the Control Display are deleted, moved or replaced by an unknown frequency.

The sounds system emits a pop/crackling noise when the vehicle is started at low ambient temperatures. Only vehicles equipped with Logic7 Amplifier.

When the auto headlight mode is active, the headlights do not turn off when vehicle is driven from dark ambient light conditions to brighter ambient light conditions (Only affects vehicles updated with CIP 7.22).

The following software errors were corrected with the release of CIP 6.1 (Target Data Status 6.73.A)
Check Control shows service interval too short.

RDC fails intermittently, check control message and tires indicated in MMI are yellow.

Control Display and Instrument Cluster settings revert to Metric.

Poor FM radio reception.

Battery discharged because of increased closed-circuit current caused by door modules.

Airbag warning light is illuminated (SIM processor reset FC 93A8).

Comfort front seat headrests adjust to a predefined position every time the seat is moved.

Rear headrests move up and down on their own (Note: After programming with CIP 4.2 or higher, the rear headrests can be locked using the lockout switch on the driver's door).

Rear roller sunblind does not operate at low temperatures.

All doors unlock automatically as soon as engine is switched off and the remote is removed from the CAS (only when Drive-away locking is deactivated in VKM (Vehicle Key Memory).

The trunk lock button is locked on the 3rd press of the remote unlock button.

Total mileage shows 999,999 when ignition is switched on.

The Control Display check control symbol (vehicle symbol) is displayed incorrectly (wrong color).

The steering column position is not stored to a previously set value when key is changed.

Airbag light on, fault stored in SIM "93D9 Overvoltage shutdown".

The passenger side mirror doesn't return to its original position after automatic parking function.

No voice instructions are given from the navigation system when route guidance is activated.

Poor brightness and low contrast in the Control Display.

A rapid double-click on the iDrive controller while in the "Tone selection" menu resets the sound settings.

When the engine is switched on, "Initialize Tire Pressure Control" is displayed.

Vehicle settings (for example: the settings for the freely allocated MFL button, Park Distance Control (PDC) screen settings and the language in navigation menu settings) automatically change on their own.

When a vehicle is parked for extended periods exposed to high ambient temperatures, the Control Display may have a delay in startup (screen remains dark).

After the DME was programmed using CIP 7.0 or 7.1, the customer may have driveability complaints. Check engine light is on, "Engine malfunction due to driving style" appears in Control Display, multiple faults are stored in DME: misfire detection, manifold pressure sensor, air mass meter, Valvetronic power limitation, etc

745ByMySide
02-26-2008, 05:25 AM
WOW! lol I also notice that the 99,999 odometer complaint is in there, Chumpy should be happy. Software updates should help a lot of these cars.

Chumpy
02-26-2008, 05:51 AM
Yeah, thanks for that info.

My car has reverted to the original problem, which is showing 999999 on the odometer, and the windows opening when the key ius removed from CAS.
I have just been out in the car, and it was absolutely fine apart from these issues.

The engine was perfect, not a problem, no misfires, nothing.
I actually covered 32 miles driving around my local streets!! People must have thought I was crazy!

This seems to suggest that the problem with engine / CANbus do not exist when the car is in this state.
Perhaps the other devices have shut down the offending device on the bus?

BMW_Tech - Thanks for the info. I think I will go with a software upgrade, as I have the following issues on my car prior to this happening:
- Emergency transmission program when engine is started (had this very intermittently, and it cleared after an engine restart)
- The transmission automatically shifts to P when the engine is switched off. Please consult your BMW center as soon as possible
- The sounds system emits a pop/crackling noise when the vehicle is started at low ambient temperatures. Only vehicles equipped with Logic7 Amplifier. (my car has Logic 7, and I regularly hear pops/crackling from speakers when the engine is off, and no audio is on)
- RDC fails intermittently, check control message and tires indicated in MMI are yellow. (I get Tyre Pressure warnings)
- All doors unlock automatically as soon as engine is switched off and the remote is removed from the CAS (I get something similar, in that my windows open, rather than doors unlocking)
- Total mileage shows 999,999 when ignition is switched on.
- When the engine is switched on, "Initialize Tire Pressure Control" is displayed.

Thanks to everyone for their help. I've sure learned a lot from this unwanted experience. Hopefully this thread will help others....

I'm off to get my software updated. Will report back when its done, to let you folks know the result.

Cheers

745ByMySide
02-26-2008, 06:27 AM
Good luck Chumpy!

jwunder
04-01-2008, 03:59 PM
I experienced exactly the same problem with my 02 745. While at a steady cruising speed momentary engine stop, then restart. Usually repeated 2 or 3 times in quick succession. The tach would briefly drop to zero confirming the engine was stopping rather than misfiring. On occasion when coming to a stop the engine would die completely and I had to restart it. Every possible combination of error messages would be displayed with "transmission program fault" being the most frequent. It took two trips to the dealer to find the problem which if I recall was either the right or left bank exhaust sensor (don't recall exact description of repair or part). I will find the repair invoice and report the part number and repair code. Please allow a day or two to find it amoung the deep pile of repair invoices I have collected on the car.

745ByMySide
04-01-2008, 05:20 PM
Hey Chumpy, did everything work out with your car??

Chumpy
04-02-2008, 11:34 AM
Hi again.
The car is running fine at the moment, but just with the fault of the mileage reading 999999 when I insert the key (reads correctly prior to this), and the windows drop and sunroof opens when I take the key out.

I've not had the software updated yet, as I was waiting for SSS v29 to be released from the dealer, which was due this month.
I'm going to get the software updated this coming week, so will report back!

Cheers

745ByMySide
04-02-2008, 05:52 PM
Good Luck.

Chumpy
05-20-2008, 12:14 PM
OK - An update on this issue for those who are interested.

To quickly recap, I orignally took this car into a dealer who will remain nameless (Halliwell Jones BMW Warrington - UK), who charged almost 200 and delivered no diagnosis, and then recommended changing the instrument cluster at a cost of over 1100, with no confirmation it would resolve the issue.

After much debate with the dealer, who were quite frankly nothing short of a disgrace, I waited for SSS v 29 to be released, and yesterday took my vehicle to another BMW dealer, and requested a software update, following the info given by BMW_Tech - (Thanks!)

The dealer without any hassle took the car, and agreed to update the software, at a cost of 198 (which was 130 cheaper than the shoddy Halliwell Jones BMW Warrington).
After a few hours they contacted me to say the programming had failed with a problem reported on the CAS module.
They told me they had contacted BMW Customer services, and explained the situation, and managed to get me a 40% discount on the parts as a gesture of goodwill!
This was all without any prompting!

The software has been updated to the latest version (SSS v29), and the CAS module replaced (part no 61316942488), all for a total cost of 422.

All in all the problem is resolved, the car has the latest software, and I'm a happy owner again. The lesson here for me, is to not deal with shoddy dealers!!!
I highly recommend BMW Williams Manchester, and would not take my childs toy car to Halliwell Jones BMW Warrington!!! STAY CLEAR OF THEM!!

Another tip, is if you have an electrical problem which you suspect may be software related, it may be worth requesting a software update, as my new dealer only wanted 200 for the update, and the 'old' dealer wanted almost 200 to investigate and turn up nothing!!!!
At least the software upgrade failed with the CAS module, and this helped to identify the faulty component.

Hope this helps someone!

Cheers

dekdeavs
05-20-2008, 12:40 PM
Nice to see you got all your car problems resolved.

Now it's back on the road you go! :drive:

sunny_j
05-20-2008, 02:10 PM
glad to see everything worked out. what exactly is CAS module?

Chumpy
05-20-2008, 02:44 PM
The CAS module is a the Comfort Access System (??)

Its basically the bit that controls where your key inserts into. It controls (I believe) the unlocking, locking, lowering of windows (ie. comfort access), opening of boot via remote, some ignition functions (ie. key related) etc. It also reads the mileage from the key.

It makes sense that this was at fault that the key was being mis-read (hence the 999,999 mileage on the odometer), and the mis-fires / CANbus resets, and windows lowering when the key was being removed from the CAS.

Hope this helps.

sytrack
11-06-2008, 12:45 PM
Sounds like you have a bad Ignition Coil...

745ByMySide
11-06-2008, 12:57 PM
Sounds like you have a bad Ignition Coil...

Read the entire thread before answering, his problems go beyond the ignition coil.

DJay45
11-06-2008, 01:05 PM
Read the entire thread before answering, his problems go beyond the ignition coil.

Glad he bumped it tho. Great thread & read. :thumbup:

Chumpy
11-06-2008, 01:42 PM
Sometime since this incident & repair, I'm happy to report all is still well.
Hope this helps someone who encounters a similar issues, as many of these stealers, are out there, and if the computer doesn't tell them whats wrong, they are clueless, and can't follow basic logic. This could have cost me a lot of money.
Another important lesson for those in the UK, is stay clear of Halliwell Jones Warrington.... abolutely shameful service!

Cheers

Judd944
09-22-2009, 07:01 AM
Great read. Bump. Read this if you have software issues.

bembo19
09-22-2009, 04:30 PM
very interesting read chumpy ! i have a 745 on an 02 and have had no issues ! i'm wondring if this means mine has had a softyware upgrade previous to me taking ownership of the car !

wilson009
09-23-2009, 10:56 AM
very interesting read chumpy ! i have a 745 on an 02 and have had no issues ! i'm wondring if this means mine has had a softyware upgrade previous to me taking ownership of the car !

He had a component failure that was causing the software issue. Having newer software won't prevent you from experiencing component failure.

I'm sure these types of problem will become more prevelant as the cars get older and pieces start to fail.

bembo19
09-23-2009, 01:51 PM
maybe !? i asked i bloke who's a friend of a friend for buying advice on 7's ! he was main dealer for 20 years so should know a thing or two ! he said that they rarely see the 7 bar the odd hiccup and routine service ! nothing out of the ordinary and i see alot of crap ! peugot's and vauxhalls are a real mare !! thats just to name a few ! after a year of troubler free driving his advice proved to be correct ! at least for me anyways !

farrell0
10-01-2012, 08:25 AM
Thanks Chumpy, I have been reading this with keen interest because I am having the same problem with my 2006 730d. I took it to the stealership who told me thye car must have done about a million miles and would cost me over 4000 to resolve the electrical issues with the car. I will try another stealership for software upgrade and see if this wouls clear my problems.