edump

Hi everyone...

The summer arrive and my 270CDI start give me "red screen". I will share in order to know if anyone has suffer the same...

This already happend 4 times....

After 100km trip with 38ºC outside I stop the car. When i start the engine again the computer give me one malfuction "Electrical Switches turn off" and after 10 seconds when i start moving the red screen appear saying:

BATTERY/ANTERNATOR failure STOP
and
SBC TURNED OFF STOP

Like it hapend in other times after two hours the malfuntion desapear.

I'm start to getting crazy. The car have already went to MB Dealer for two times to diagose the failure and the could not trace anything. The told me that only with the red screen active they could know what is happening.


Anyone have this problem ????

Hope to see some help soon...

MP
E270 CDI Avantgarde, 01/2003,
79000km
Portugal

Diesel Benz

If the car reports about a malfunction, it should get repaired. If you haven't had it fixed, I don't see why you should be getting crazy (I did not say you already are).

It it likely the AUX battery or the alternator regulator or the battery control unit.

It is not safe to drive the car in that condition, even if you are able to get rid of the message temporarily.

edump

Like I told, I had the car two times in MB Dealer and they could not find the bug. Six months ago I change both batteries and the problem continues.

In MB Dealer they told me that only with the failure appearing in the bord computer they might diagose the failure. Did you ever had any like this? Other question regarding the alternator...what is the alternator regulator? To change it must I change all the alternator?

Regards,
MP

Diesel Benz

I see it had visited the workshop twice but you did not mention the batteries were changed. I would assume the workshop taking care of at least the recall work that applies to this early W211 model. I guess I mentioned the battery control module SW. The whole alternator would not need to be changed.

For an SBC turned off case it should not matter if the malfunction is present, the workshop should pull relevant fault codes stored. Perhaps they cleared all codes first assuming it would fix the issue.

You don't mention if your brakes still work when the SBC warning comes on? It might be that SBC does still work normally, this being an early warning.

Have you had any opportunity to actually measure the battery voltage when the malfunctions appear (both batteries)? I believe a W211 has a hidden IC menu that allows reading the battery voltage too.

I assume the car starts always normally? Then it should be unlikely an issue with the big currents the SBC pump takes, the starter consumes a lot more power.

Cannot think of anything specific with these symptoms, perhaps someone else?

Scambo

Battery Control Module failure, (BCM).

edump

I'm starting to think that this is not an isolated issue in the w211 world.

I think the same that maybe the BCM is the one that is damage. In MB Dealer they told me that they could not find anything wrong with the BCM and that the recalls are updated. The problem is that the recall is from 2004 and I only bought my MB in Dec 2006.

Today I'm charging the batteries with MB battery Charger. I look at the BCM and it is written that the SW version is from 2002.

Any one knows if when they made the recall in the BCM they put new label with the software version??? Can anyone check that?

I suppose that the only way to solve the problem is to find someone that experience it, because in Portugal they don't know much about the issue. . Even that I'm custumer of the bigger MB Dealer CSantosVP.

Regards
MP

konigstiger

MB “USA” released two service campaigns 2005070017 APR06 ‘01-06 211 addressing the alternator and 2005060008 JUN06 ‘03-06 211 addressing the BCM.

DTB P-B-42.46/84 NOV07 – 211 (VIN range A040665 to A589444) engine or interior compartment (contains the supply line for the auxiliary battery relay) wiring harness in the area of the auxiliary battery may be damaged.

In addition, have them check the auxiliary battery relay.

BCM (i.e.: part #A2115401345, A2115402745, A2115404245, etc.) can be reprogrammed with DAS (STAR Diagnosis) identifiable through SDS therefore not mandatory to label update.

If replaced – current BCM for your 211.016 is A2115408745 up to VIN 792597 & X185636, A2115408645 from A792598 & X185637

PM your email address and I will send copies of both campaigns and the DTB (if your vehicle is within VIN range) to present to your dealer.

Diesel Benz

The AUX battery relay was interesting, I don't remember it being often reported being faulty but another forum member recently appeared to have an issue with that. It must have been on the list at the sticky already, just that it does not appear often on the actual forum threads.

The battery control module SW has been updated since the recall work, you could ask the dealer to update the SW, if not already done, even if the recall work has been done.

I guess there is a chance that this Euro car is not covered by the serial number range of the US bulletins? I would consider the contents of the bulletins even if they would not cover the VIN of this E270CDI.

edump

I think I will follow your advice and konigstiger help. My VIN number was not included in the list of the ones in the service bulletin, but never the less I'm not certain that Euro MB are in the list, so I will expose the data to my MB Dealer.

I check my BCM and is the A 211 540 27 45. At the moment I will try to go to MB Dealer with the error message on. After that if they could not find nothing in the Star Diagnosis, I will go for the 3 possibilities:

i) update the BCM even if the car had done the recall
ii) check the alternator regulator
iii) check the wiring harness in the area of the auxiliary battery.

They already reset the error register and even after that and even after the car went again to store after another bug, they could not trace anything.

Crazy stuff...this is the only thing that bores me until now. Otherwise this car is great

Regards to you all and thanks for the help.
MP

EclassFetish

konigster once again to the rescue!!

MBabreu

Boas, tenho o mesmo problema mas nem só no verão, como conseguiste resolver essa situação?
Obrigado

MBabreu

Boas
Que FIZESTE para resolver esse problema?
Na MB também não "encontram" o erro.
Obrigado