W203 dealer diagnostics report help
I have a problem in transmission where the car goes into LIMP mode randomly. I went to the dealer shop and he offered a free diagnostics report. I need your help in understanding what the report means.
The report is attached in pdf
The car is 2006 C230 Sport




N15/3 is the Electronic Transmission Controller on the CAN C bus - Engine databus aka Chassis CAN.
Do a search for 722.6 transmission control module and you'll at least be pointed in the correct direction.
Edit: I just assumed a 722.6 transmission in your car. If different, search under the correct designation.
Last edited by bbirdwell; Apr 16, 2015 at 01:54 PM.
I have a problem in transmission where the car goes into LIMP mode randomly. I went to the dealer shop and he offered a free diagnostics report. I need your help in understanding what the report means.
The report is attached in pdf
The car is 2006 C230 Sport

My car is automatic (I think 6 or 7 speed
)You mean I should ask the dealer to read the transmission controller fault codes? Is this read using different tools than reading from the OBD?
About the other fault which is the intake manifold, is it urgent to change it? Can something wrong happen if I changed it later? because I'm low on cash.
Yeah you need them to use the star system they used to give you that report to check out the transmission faults as it may need some expensive work as the fault is for the speed sensor which means it won't be cheap and will need to be taken care of.
As for the intake research the m272 intake manifold linkage here is a video about it. I am not sure if thats whats wrong with your car but is common and sadly requires a new intake or an aftermarket kit to fix it.
EDIT:
Looked up your vin you have nice options and yeah its a 7 speed.
Last edited by samaritrey; Apr 17, 2015 at 01:58 PM.
Your reply was very informative.
I updated my profile, and I'm now living in Oman. I bought this car used from UAE, 4 months ago.
I read much about my transmission problem, and my guess is it is the transmission speed sensors (which means changing the transmission contact plate
)MB Oman quoted me to change the entire intake manifold for $780. I don't think they will accept to just replace the plastic lever (I may look for an indy shop to do that for me)
I will have to return to them for transmission controller diagnostics (150 Km away from where I live)
I will post updates here when I go to them.
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My question is: Does this mean that he will change the TCU AND the conductor plate as well?
Anyway I found an indy today who quoted me $1000 for changing the same things as the dealer (also providing genuine pars). I think I will try him.
I went to the independent workshop. I changed the transmission conductor plate
722.9 Transmission Conductor Plate
I changed also the transmission oil, and it was OK.
Then I wen to another shop for programming (I think he did online programming)
Now the car is moving again
but I need to test it for some time to see if the problem happens again.The total cost was $1190 (Conductor plate + Oil + Programming + labor)

Thank you all for your help
Last edited by amazingahmed; Apr 22, 2015 at 12:45 AM.



