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E85 / E86 Z4 (2003-2008)
E85 Z4 Roadster, E86 Z4 Coupe, E85 Z4 M Roadster, and E86 Z4 M Coupe talk with our BMW gurus here.

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  #1  
Old 11-24-2012, 03:17 PM
zsazsa zsazsa is offline
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warning lights

Gentlemen,
I have a Z4, 2.5 L, E85, 2004. 2 questions;
1) Where can I buy a complete repair manual.
2) I have 3 yellow warning lights on, BRAKE, a tire with an explanation mark in the middle and a circular arrow with an explanation mark in the middle. What than mean and how can I fix it?
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  #2  
Old 11-24-2012, 03:37 PM
Jortiz96 Jortiz96 is offline
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Mein Auto: 1996 BMW Z3
You should be able to buy a repair tool online. If you don't feel like doing that try taking it to a mechanic who can reset the errors for you, and you don't necessarily have to take it to a BMW dealership, me and my father take our cars to a guy who is certified to work with Porsche and BMW automobiles. As for me, i have the abs light on and the passenger airbag on.
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  #3  
Old 11-24-2012, 04:05 PM
zsazsa zsazsa is offline
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Jortiz96,
Many thanks for your reply.... I would be more than happy to buy the repair tool online, but... Up until now I bought 2, and they were useless. Could you give me more info please. Where and what to buy. Many thanks zsazsa
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  #4  
Old 11-24-2012, 07:34 PM
Jortiz96 Jortiz96 is offline
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I am not 100% familiar with the Z4 because i have a Z3 but go ahead and check this out
http://www.bimmian.com/Peake-Code-Re...for-BMW-E85-Z4
That should be what you are looking for.
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  #5  
Old 11-24-2012, 08:54 PM
zsazsa zsazsa is offline
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Many thanks Sir
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  #6  
Old 11-25-2012, 05:24 AM
z4mconona z4mconona is offline
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http://www.bmwsections.com/docs/z4/ - your owner's manual. A Bentley manual would be advisable if you want to perform DIY.

Also http://tis.spaghetticoder.org/e85/Z4..._general_data/

Never had that exact combination, although I had weird "like" warning issues (brake, DSC, Tire) when my battery fell well below a 12.4V measured level and new battery resolved the issue. You might start there - either measure your voltage or have it tested at a local AP store.
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Last edited by z4mconona; 11-25-2012 at 05:36 AM.
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  #7  
Old 11-25-2012, 09:07 AM
zsazsa zsazsa is offline
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Dear z4mconona,

Many thanks for your answer, I measured the battery voltage, 12.2 VDC. What surprises me that I do not have any battery related problems, the car starts and runns fine. I started to see this warning lights combination several months ago, first I had to drive 10-15 miles before the lights come on, now the lights are on all the time. Someone had the suggestion that the wheel revolution sensors, I checked them, mechanically they look good, electrically I do not know how to check them. Now I am on the hunt for good books/DVD whatever so I can read on the problem more. I have old Volvos, a 300D Mercedes, they are not as complicated as this Z4. And they are not as nice... How it goes, no such thing as a free lunch. I will check out the links to literature what you sent me, again many thanks zsazsa
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  #8  
Old 11-25-2012, 01:51 PM
z4mconona z4mconona is offline
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NP.. although your issue feels more like a control unit/sensor glitch or the steering alignment or the steering box itself++... give it some time this community has some very clever folks who have a considerable deal of experience and know-how. Good luck

++ I had my steering unit replaced while still under full warranty (35K) given the issues known in the E85 production (non M cars) (BMW fix only on failure position- not proactive... $$'s)
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  #9  
Old 11-25-2012, 07:31 PM
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shipkiller shipkiller is offline
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The 'tire with an explanation mark in the middle' is your low tire pressure indication. Check the tire pressure, adjust if necessary, then start the car, press and hold the button on the center console that looks like the indication. Hold for five seconds, release, the drive around the block. If it stays on the you have an issue with the ASC system. If this indication is RED, normally low tire pressure. If the indication is YELLOW, a system fault is detected. Your 2004 does NOT have the in the wheel TPMS sensors.

The 'circular arrow with an explanation mark in the middle', (actually a circular arrow with a triangle and explanation mark). That is your DSC (dynamic stability control) system indicating you have a fault in the DSC system.

The 'Brake' light indicates your parking brake is on or you have worn the brake pads down to the 'sacrificial' pad indicators. These sacrificial pad indicators are a single wire on the left front and right rear calipers. When the brake pads wear to a point the sacrificial indicators start to wear and ground out the wire, lighting the light. These must be replaced IF they have been worn down. If you replace the pad before this, they are reused.


There are two quality BMW repair manuals and both are from BMW. Everything else is garbage. Believe me, I have a Hanes and a Chiltons for the Z4. They suck....
Bentley does NOT produce a repair manual for the Z4.
The mechanicals are call the TIS and the electricals are called the WDS (V12). Both are CD/DVD's and can be had on Ebay for about $15.00 each or you can torrent them down... BMW does not publish them. They are just in the wild.

There is good aftermarket software out there, but one of the best I have found for the Z4 is the BMW software. The BMW INPA software runs on on all versions of windows, including Win7 64bit.
INPA will talk to all the cars modules and you can see the realtime data, control functions and reset the errors. I you start searching the internet you can find the INPA software, you just have to get the cable, which should be in the neighborhood of around $30.00.

Just remember, the ODB-II scanners can only read/reset the ODB-II functions. NOT any of the other modules on the car. Brakes, DSC, etc are not ODB-II.

I run the INPA software on a Win7 64bit setup. I do have to fire up a VMware session (WinXP) to run the NCS software but that is for coding the car.

Look here for some more information: www.shipkiller.com
The site is a work in progress when I have time, so not everything is on it yet.
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How does something immoral, when done privately, become moral when it is done collectively?
Furthermore, does legality establish morality?
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  #10  
Old 11-25-2012, 08:36 PM
zsazsa zsazsa is offline
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Shipkiller,
Many many thanks... you gave me more info to work with than I had alltogether before. What I am surprized is that I tought that the 3 warning lights (each are yellow) are indicating 1 problem, but what I get from your answer that they are 3 separate problems. The tire pressure check, the brake pad check are no problem I will do that. But the DSC, I do not know what to do with that system.... I am familiar with the brake pad indicators and how they work.... What is ASC?
You are mentioning INPA software, I guess it is running on a normal laptop computer?! and I will need a cable? I guess between a USB connector of the laptop and the Z4 OBDII connector? Is this correct? Okay where can I buy/get the INPA software? Yes, I understand that the normal OBDII tool does not covers and special Z4 function.
The car runns like dream..... you are writing that my Z4 does not have a wheel revolution sensor. Yes, I found the brake wires by 2 wheels, and 4 other wires, 1 by each wheel connected to an object like my pinny about 1 inch long, hanging from the inside out toward the wheel base. I certainly thought that they are revolution sensors. I thought that this is how the car is sensing tire pressure????
Again, many many thanks for helping me out, and spending time on my problems....
Sincere thanks zsazsa
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  #11  
Old 11-26-2012, 05:20 AM
z4mconona z4mconona is offline
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+1 shipkiller and when you do get this sorted please post the results...
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  #12  
Old 11-26-2012, 06:07 AM
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shipkiller shipkiller is offline
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Sorry, I mistyped. I did not mean ASC, but DSC….
You really need good software to troubleshoot a DSC system.
Info on the DSC for your car: http://www.shipkiller.com/Dynamic_Stability_Control_MK60.html
If you determine if you need a new DSC module, look at this website to see if they can repair your module: http://www.modulemaster.com/en/index.php

Yep, a laptop (serial or USB) to the ODB-II port on the car. These cables can be bought on Ebay or just online. The BMW INPA software is in the wild on the internet. Just do a search and most of the BMW forums will have some threads on the subject.
Other software that will cost you money:
BMW Scanner 1.40
AutoEnginuity

The car does have a revolution sensor on each wheel. The DSC system uses them if it needs to intervene. What I was talking about is your tire pressure monitoring. On MY 03-05 (your car), the Z4 uses wheel rotational comparisons to determine if you have low tire pressure. On MY 06-08, the Z4’s use a active TPMS system that has a transmitter internal to each wheel.
Read more here: http://www.shipkiller.com/Tire_Defect_Indicator.html
__________________
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How does something immoral, when done privately, become moral when it is done collectively?
Furthermore, does legality establish morality?
Slavery was legal; apartheid was legal; Stalinist, Nazi, and Maoist purges were legal. Clearly, the fact of legality does not justify these crimes. Legality, alone, cannot be the talisman of morel people. - Walter E. Williams
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  #13  
Old 11-27-2012, 06:55 PM
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Bucko521 Bucko521 is offline
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In regards to the 3 lights issues, I had the exact same issue. No problem starting car, etc. but the battery was the issue causing weird dash warnings.

Easy fix to replace battery, and since you may have an older battery, the preventative maintenance is something you may want to do anyways.

The issue is with low voltage for the sensors overall, not with the actual components. Thus false readings. At least this was my experience. YMMV
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  #14  
Old 11-29-2012, 06:28 PM
zsazsa zsazsa is offline
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Guys,

Many many thanks for your ideas, but....
Bucko521 you are writing about the battery, you are the second person who writes about the battery... So I made some measurements:
No motor no load 12.7V, no motor with load 12.4V, motor no load 14V, motor with load 13.8V.... (load are the lights)... Okay I exchanged the battery, shorted the 2 wires w/o battery, same readings, the 3 warning lights are still on, they are yellow.
Yesterday I visited a BMW mechanic who checked the car with computer, could NOT fing any problem, the wheel revolution sensors are perfact, all 4, the stearing alignment is perfact.... he reset everything the lights are still on.
Currently I do not have any idea what to do. On the bright side, the car runs like charm
Guys many many thanks for your help, Zsazsa
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  #15  
Old 11-29-2012, 07:18 PM
lgmyers lgmyers is offline
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Quote:
Originally Posted by tohbi View Post
recently, i very nearly purchased a 2000 m model but chose, instead, a '97 2.8. with 190 hp and over 200 ft lb of torque, the s52 moves this car with all the power i need for a street vehicle. the top is manual and more dependable. if it had roll up windows and manually adjusted seats, i'd like that better.

the s52 seems to be rated highly for reliability. moreover, when one starts applying too much power to these little cars, things break. big
Gerie': engines with iron blocks mean more weight. there's a whole buncha issues related to adding more power to a car that was designed for 138 hp.

if you like the more muscular, cobraesque styling of the m or just want the prestige of the top-of-the-line model, then spend the extra money for purchase and repair. myself, i prefer the 2.8 styling for the street. racing? maybe an m with a racing stripe. hmmm


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  #16  
Old 12-15-2012, 07:03 PM
zsazsa zsazsa is offline
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Okay guy,
Took apart the brakes... Front left rear right. The pads are more than 5-6 mm thick, the sensors are not reaching the disc. so the brakes are okay. Currently I have no idea what should I do, the car runs fine....
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  #17  
Old 12-15-2012, 07:14 PM
z4mconona z4mconona is offline
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I hear you... its a puzzler and a conundrum that must drive you crazy... recently did a full suspension upgrade, bilsteins, springs mounts and the lot. Drive a few hundred miles, yellow DSC and brake light. Alignment done, speed sensors checked, wheels balanced - rubber all new, codes interrogated etc etc - steering wheel alignment components tested - all AOK. So I have to live with it. vehicle runs like a champ and handles like a fighter! Drives me nuts as there has to be a reason and one day I will get to the bottom of it... but its a daily driver. oh I have been doing that spin wheel left right and center slow thing start of each drive day... what good it really does is only measured in the time between failure events - when the dreaded DSC beep and then brake fault appears and the cycle is repeated.

Last edited by z4mconona; 12-15-2012 at 07:27 PM.
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  #18  
Old 12-15-2012, 09:21 PM
zsazsa zsazsa is offline
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z4mconona,
Honestly, I would like to understand.... It does not make any sense.... I or the mechanic checked everything, but some failures are just does not want to go away. As you are saying, one day the problem will be solved, until than we live with it. I have older cars w/o computer and all this new electronic garbage, where you never know, that it is a real problem or the feed back system is wrong, so it is an immaginary problem. The Z4 looks great, drives great, but all this electronic garbage does not make me happy... And I am an electronic engineer.... Thanks for your input, please let me know if you found the solution.... Zsazsa
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  #19  
Old 12-16-2012, 10:41 AM
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jsc jsc is offline
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Quote:
Originally Posted by zsazsa View Post
z4mconona,
Honestly, I would like to understand.... It does not make any sense.... I or the mechanic checked everything, but some failures are just does not want to go away. As you are saying, one day the problem will be solved, until than we live with it. I have older cars w/o computer and all this new electronic garbage, where you never know, that it is a real problem or the feed back system is wrong, so it is an immaginary problem. The Z4 looks great, drives great, but all this electronic garbage does not make me happy... And I am an electronic engineer.... Thanks for your input, please let me know if you found the solution.... Zsazsa
If all your sensor inputs, associated wiring and battery voltage are good, unfortunately there are several more expensive / difficult areas that may be causing the problem. The ABS relay, DSC hydro unit and associated electronics, bus controller, etc, are all in path for a possible failure of this type. At this point it would probably be worth taking the car to a BMW specialist with a GT1 or equivalent system to be able to read chassis specific BMW codes and diagnose the problem at a more detailed level.
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Old 12-16-2012, 11:16 AM
zsazsa zsazsa is offline
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Many thanks for your answer..... but the question is the following; The car runs like a charm, brakes, battery, everything else works well... sooo what is the point to spend money, a lots of it, for something what is the immagination of 3 instrument warning lights? If I can fix it, okay, but I have the feeling that I will go to BMW, they will start to exchange parts, and I will start to pay.... Unfortunatelly I am an old xxxxx I know how this works. I took orher problems (unrelated) to the "professionals" they fixed it, I paid, and when I took it home I had the same problem as before. Sometimes I am tired to fight, so I left the money there..... After many many months of trying, through friends, through forums I found the solution.... It happened to me many many times. For that reason, I am very hesitant to go to BMW.... When I buy parts to my old Mercedes at the Mercedes dealership, I see people are paying 1000 and plus invoices.... Thanks but no thanks...
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  #21  
Old 12-16-2012, 02:45 PM
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jsc jsc is offline
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Quote:
Originally Posted by zsazsa View Post
Many thanks for your answer..... but the question is the following; The car runs like a charm, brakes, battery, everything else works well... sooo what is the point to spend money, a lots of it, for something what is the immagination of 3 instrument warning lights? If I can fix it, okay, but I have the feeling that I will go to BMW, they will start to exchange parts, and I will start to pay.... Unfortunatelly I am an old xxxxx I know how this works. I took orher problems (unrelated) to the "professionals" they fixed it, I paid, and when I took it home I had the same problem as before. Sometimes I am tired to fight, so I left the money there..... After many many months of trying, through friends, through forums I found the solution.... It happened to me many many times. For that reason, I am very hesitant to go to BMW.... When I buy parts to my old Mercedes at the Mercedes dealership, I see people are paying 1000 and plus invoices.... Thanks but no thanks...
While those 3 lights are on, the ABS, DSC, FTM and other electronic aids relating to those systems probably won't be functional. I wouldn't take the car to the dealer, but to a local BMW specialist in your area. If you are not worried about those systems working, then it should be no problem in just accepting the warning lights.
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  #22  
Old 01-06-2013, 03:54 PM
Irak1121 Irak1121 is offline
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2006 z4

Hi guys, looking for help on a warning indicator battery light is on when car is started but then will go out after a few minutes.
Manual says alternator not charging . Battery not charging. However why would light go out then?.
Please help.
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  #23  
Old 01-08-2013, 09:20 AM
Z4Driver Z4Driver is offline
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Here's one for you guys. DSC flickered on then stayed solid on. TPM and brake light then came on yellow. Car pulls hard to the left, almost like a caliper is frozen. Any ideas?
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  #24  
Old 02-03-2013, 04:45 AM
z4mconona z4mconona is offline
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Mein Auto: '04Z4 3.0, '07X3 3siMS
My solution

The master brake switches (2 @ 150.00 each) were replaced and my long term annoying problem now solved after 2K daily driver driven. What a pain in the neck this issue was to trouble-shoot and it took my Indy shop owner Nelson Aviles in Orlando one afternoon and he remedied the issue after everyone else (and myself) - failed.. So many wasted cycles. DSC feedback design is something someday I would to know more as a electrical and computer engineer myself - so far no luck. But talent like Shipkilller (I am US Sub Force vet as well) and others may provide their valuable exp... cheers

Last edited by z4mconona; 02-03-2013 at 04:46 AM.
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  #25  
Old 09-21-2014, 06:33 AM
IOMZ4 IOMZ4 is offline
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@Z4Driver - 'Here's one for you guys. DSC flickered on then stayed solid on. TPM and brake light then came on yellow. Car pulls hard to the left, almost like a caliper is frozen. Any ideas?'

The same issue just happened to me, what was the issue/fix for yours?
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