Mercedes B class w245 2006 2005 2007 transmission control unit tcu TCM removal repair replacement
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The Mercedes is this vehicle and a Petrol version 2005.
Possible fault codes may be 0714 0722 0657 c121 0793 0896
Please note that if you are going to carry out this job, make a note of the linkage to which the gear stick connects to, and its a piece that looks like a U and needs to go back in the correct place.