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  1. J

    ML320 ISM issue

    I took it to Mercedes and they found no issues, they said because I had wiped the codes to enable me to drive it there they couldn't find any problems or get the car to do it again. Since I took it to them it has done it twice but when I stop the engine and remove the keys it is like it resets...
  2. J

    Full Diagnostic Trouble Codes List

    Can anyone please tell me what faults P1922, P1974 & P1904 relate to? I think its the ISM (A80) but not sure. Found the answers from a very useful post a bit further up....now worried as think I am going to have to replace the ISM and from what I hear it is very costly as it has to be...
  3. J

    ML320 ISM issue

    My car keeps coming up with the warning 'not in position P' and 'take to a garage without changing gear'. It only seems to do it in the morning and when you turn the engine off and then restart it is normally fine, once it got stuck in park and when I eventually got it towed to a garage and they...
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