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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E60 (2004 - 2010)

E60 (2004 - 2010)
BMW 5-Series (E60 chassis) was first seen in the Unites States in the fall of 2003 with a 2004 Model Year designation. The E60 is now available as a 528i, 528xi, 535i, 535xi, 550i and a 535xi sports wagon! -- View the E60 Wiki

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  #1  
Old 05-23-2013, 08:00 PM
mypain525xi mypain525xi is offline
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Location: usa
 
Join Date: May 2013
Posts: 14
Mein Auto: 525xi
service engine soon (SES) and overheating

hi guys, my 2007 525xi only has 36k miles is giving me headache.
I scanned for the error codes/faults using Bavarian tool, it gave me the following codes...

2C9C
2C9C Lambda probe heating in front of catalytic converter, input signal
Error will cause a warning light
Error is currently present
Test conditions have not been completed
Signal or value below threshold

Freeze Frame Information
Event 1Odometer 58512kms 36357miles
Ceramic temperature Lambda sensor VK 1 0.00 C
time since end of start 179.20 s
Battery Voltage 13.82 V
Lambda sensors heating front cat 1 73.05 %

2C9D
2C9D Lambda probe heating in front of catalytic converter 2, input signal
Error will cause a warning light
Error is currently present
Test conditions have not been completed
Signal or value below threshold

Freeze Frame Information
Event 1Odometer 58512kms 36357miles
Ceramic temperature Lambda sensor VK 2 0.00 C
time since end of start 179.20 s
Battery Voltage 13.82 V
Lambda sensors heating front cat 2 73.05 %

2C9E
2C9E Lambda probe heating behind catalytic converter, input signal
Error will cause a warning light
Error is currently present
Test conditions have not been completed
Signal or value below threshold

Freeze Frame Information
Event 1Odometer 58512kms 36357miles
exhaust temperature behind of Cat Bank 1 352.00 C
Resistance Lambda sensor NK 1 65,280.00 ohm
Voltage Lambda sensor rear cat 1 0.43 V
Lambda sensors heating rear cat 1 71.88 %

2C9F
2C9F Lambda probe heating behind catalytic converter 2, input signal
Error will cause a warning light
Error is currently present
Test conditions have not been completed
Signal or value below threshold

The above mean all 4 of my oxy sensors are bad. Is it possible all 4 gone bad at the same time? So what I did was, I replaced 1 out of 4 sensor just to test( before spending $500 for all 4 sensors). As soon as I reset the error codes, the same codes came right back on...since I have replaced 1 sensor already, why all 4 sensors still shown being bad after I re-scanned it? thanks for all the help in advance..

Last edited by mypain525xi; 05-23-2013 at 08:19 PM.
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  #2  
Old 05-23-2013, 08:16 PM
mypain525xi mypain525xi is offline
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Location: usa
 
Join Date: May 2013
Posts: 14
Mein Auto: 525xi
overheating problem

my other headache is overheating problem. I scanned with my Bavarian tool and got the following error code

2E85
2E85 elctrical cooling pump, communication
Error will not cause a warning light
Error is not currently present
Test conditions have been completed

Freeze Frame Information
Event 1Odometer 57552kms 35761miles
Engine speed 864.00 rpm
cooling fluid temperature OBD 13.00 C
Voltage terminal 87 14.52 V

Event 2Odometer 58080kms 36089miles
Engine speed 1,184.00 rpm
cooling fluid temperature OBD 12.00 C
Voltage terminal 87 14.62 V

Event 3Odometer 58248kms 36193miles
Engine speed 864.00 rpm
cooling fluid temperature OBD 4.00 C
Voltage terminal 87 14.83 V



2E83
2E83 elctrical cooling pump, low-power mode
Error will not cause a warning light
Error is not currently present
Test conditions have been completed
Signal or value below threshold

Freeze Frame Information
Event 1Odometer 58080kms 36089miles
cooling fluid temperature OBD 12.00 C
water pump voltage 0.00 V
water pump temperature electronics -50.00 C
water pump power reduced 50.00 %

Event 2Odometer 58088kms 36094miles
cooling fluid temperature OBD 60.00 C
water pump voltage 0.00 V
water pump temperature electronics -50.00 C
water pump power reduced 50.00 %

Event 3Odometer 58248kms 36193miles
cooling fluid temperature OBD 4.00 C
water pump voltage 0.00 V
water pump temperature electronics -25.00 C
water pump power reduced 50.00 %



2E84
2E84 elctrical cooling pump, communication
Error will not cause a warning light
Error is not currently present
Test conditions have been completed
Timeout

Freeze Frame Information
Event 1Odometer 58120kms 36114miles
Engine speed 960.00 rpm
cooling fluid temperature OBD -6.00 C
Voltage terminal 87 14.73 V

Event 2Odometer 58120kms 36114miles
Engine speed 832.00 rpm
cooling fluid temperature OBD 45.00 C
Voltage terminal 87 14.73 V

Event 3Odometer 58248kms 36193miles
Engine speed 992.00 rpm
cooling fluid temperature OBD 10.00 C
Voltage terminal 87 14.62 V



2E82
2E82 elctrical cooling pump: switch off
Error will not cause a warning light
Error is not currently present
Test conditions have been completed
Timeout

According to the above info, it indicates the water pump needs to be replaced. My question is why when I disconnected both battery terminals for 15 min. or more, the water pump would work again for 2 or more days (no overheat problem) then it stops working again after that. why did the water pump work again after the battery has been disconnected for 15 min or more?

Last edited by mypain525xi; 05-23-2013 at 08:18 PM.
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  #3  
Old 05-24-2013, 07:22 AM
HPIA4v2 HPIA4v2 is offline
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Location: washington
 
Join Date: Mar 2006
Posts: 2,128
Mein Auto: E60, E71, E92
wild guess on my part....
why your batt voltage fluctuate quite a bit, 13.82 (on problem one) then 14.73(on problem two), clearly with engine running.
Is it possible your batt is very weak, then when you disconnecting it for >15min it rebuilds charge enough to run OK for a day or two?
I'd load-test the batt at local auto-part store to see if the batt is still up to snuff.
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  #4  
Old 05-24-2013, 08:12 AM
mypain525xi mypain525xi is offline
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Location: usa
 
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Posts: 14
Mein Auto: 525xi
thanks, i don't think it's the battery. It was replaced 1 and 1/2 yrs ago and it's draining b/c i have not driven the vehicle for almost 7 months now.
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  #5  
Old 05-24-2013, 07:37 PM
bschmidt25 bschmidt25 is offline
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Location: Lake Villa, IL
 
Join Date: Jun 2008
Posts: 229
Mein Auto: '07 530xi, '01 525iT
Re: service engine soon (SES) and overheating

I would clear the O2 (lambda) codes and see if they return. If the car has been sitting a while it may be because of that. Get some fresh gas, put some miles on it and check again. They're almost certainly not bad, especially at that mileage. Might want to check your plugs while your at it.

Have you checked the electrical connection to the water pump? You're not overheating according to the temps posted. Overheating would be anything over about 215 C.

Edit: Some of those temps look really low. I'd check the temperature sensors. Those should be cheap to replace if you need to.

Last edited by bschmidt25; 05-24-2013 at 08:16 PM.
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  #6  
Old 05-24-2013, 08:26 PM
mypain525xi mypain525xi is offline
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Location: usa
 
Join Date: May 2013
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Mein Auto: 525xi
yes, I did cleared the faults and they came right back on.

yes, I did checked the electrical connection to the water pump. I got the correct reading. wire 1-===12v, wire2--==12v and wire 3 ====8volts.

where is the temperature sensors? how do I check it? thanks

Last edited by mypain525xi; 05-24-2013 at 08:29 PM.
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  #7  
Old 05-25-2013, 08:35 AM
bschmidt25 bschmidt25 is offline
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Location: Lake Villa, IL
 
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Mein Auto: '07 530xi, '01 525iT
I don't know that you can really check them, but it's located in the lower coolant hose near the radiator. The sensor itself is less than $20. Might be worth a shot before you replace the water pump.
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  #8  
Old 05-25-2013, 09:13 AM
mypain525xi mypain525xi is offline
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Mein Auto: 525xi
thanks, i'll check on it later.

is there a fuse or relay for oxygen sensors. i just can't believe all 4 of them went bad at once and the car only has 36k miles. plus i replaced 1 oxygen sensor just to test but the service engine soon light came right back on for all 4 of them as soon as i cleared the codes...
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  #9  
Old 05-25-2013, 09:29 AM
schpenxel schpenxel is offline
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Location: Greensboro, NC
 
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Posts: 3,280
Mein Auto: 2004 545i
Sounds like something going on with water temp sensor or it's wiring to me. You aren't overheating--it's saying it's getting such a cold reading from the sensor that it can't be right.
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  #10  
Old 05-25-2013, 10:03 AM
mypain525xi mypain525xi is offline
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Location: usa
 
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thanks, let me clarify guys....as i was driving...yellow light (warning) light came on then red light (overheating) came which i have to pull over and unplugged both battery terminals for at least 15mins before it was drivable (normal temp) for a day or two then the whole cycle starts over again. If the pump is bad, why did it run normal again after i disconnected the battery terminals for 15 minutes or more? then it operates normally for a day or 2 then stop.
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  #11  
Old 06-08-2013, 05:55 AM
mypain525xi mypain525xi is offline
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Location: usa
 
Join Date: May 2013
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Mein Auto: 525xi
replaced the water pump...so far so good.

check engine soon still giving me the headache....finally took my car to the dealer for the diagnosis..according to them, all four oxygen sensors are showing faulty because of the low voltage they getting from the battery and battery is not being charged correctly therefore IBS Cable needs to be changed. To change the IBS cable, re register the battery and clear out all the codes, they wanted to charge me $695. they must be crazy to think I would them them that much. IBS Cable only cost $220 on ebay and 10 minutes max of labor.

Anyway, my question is.... has something like this happened to anyone? is the diagnosis correct? all 4 oxygen sensors are faulty because of low voltage? I just wanted to sure before i'm going to spend $220 for the IBS cable. thanks everyone
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  #12  
Old 06-08-2013, 05:59 AM
schpenxel schpenxel is offline
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Location: Greensboro, NC
 
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Mein Auto: 2004 545i
These cars do some really strange things when voltage is too low. I've never seen this particular result but I don't think it's outside the realm of possibility by any means.
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  #13  
Old 07-06-2013, 11:08 AM
mypain525xi mypain525xi is offline
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Location: usa
 
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just wanted to update the problems.....overheated was solved by replaced the waterpump and tsat and service engine soon light was due to a fuse blown in the EBOX.
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