Have just found your forums so hoping you guys can help me. My 2002 S320 cdi intermittently gets stuck in park. Unlike similar problems I have read about on here and other forums, it's not everytime. I had the brake switch changed but still same problem. The dealership also told me that there were no fault codes recorded (they couldn't reproduce the problem). I've also noticed that when it's going to get stuck in P, the engine doesn't crank first time.

Any help/suggestions much appreciated.

Sounds like a bad ESM (electronic shift module) or a CAN issue.

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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician

Has anything ever been spilled on or in the shifter?

Also the ME and EZS control units can cause the no crank issue as well if one of them is not sending DAS enable signal.

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1980 500SE/AMG Euro
1981 500SEL Euro
1982 380SEL
1983 300TD
1983 500SEC/AMG Euro
1984 500SEC
1984 300TD Euro
1986 190E 2.3-16
1986 190E 2.3
1987 300D
1997 C36 AMG
2003 C320T 4matic

past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350

can you please post any help? tips on a fix?????

THANK YOU!!!!!!

Sure, you hook your SDS up and do a short test, just to be see if there is evidence in other modules that is important, such as CAN time out with ESM or EGS. You then monitor the ESM during the fault and see what it tells you.

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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician

Hi Steve & John
Thanks for your replies but not sure what these abreviations mean. The car has since been into my local MB dealer and had the shifter unit replaced but still has same problem. It's sticks in park about every other time I start the car - everytime this happens, I just wait, maybe a couple of minutes and miraculously I can then take it out of park fine.

They are still telling me that there are no fault codes recorded. They now want to change the ignition switch which is ordered.

Does this help you any? Would appreciate some explanations of the terminology you are using, although I'm mechanically competant I'm not familiar with the electronic terms used.

Thanks very much, your knowledge and assitance is appreciated.
Jace