Harryhaley

Can anyone help me the car above is in limp mode I have changed conductor plate. Gearbox pin plug oil and filter but car still stayed in limp mode the reason I did this was two fault codes P0500 &P0720 car was left for a few weeks I decided to call an auto electrician to have a look but now the key will not turn and you don't hear it unlock so I called AA they got key to turn by unlocking car whilst key was in ignition and car started but I had no Rev counter no fuel gauge no mileage reading no heater no electric Windows and car still in limp mode turn ca r off then turn ignition on every thing works start car and you lose every thing took it to garage to have a diognostics test and they said that I would be better of scraping it I got it back home and decided to charge battery.I put battery back on and key worked unlocking car and starting every time but still have all other issues please help because I can't understand how all these things have happened

MJ50

moved to W203 forum...

C230 Sport Coup

Dead Battery, or in need of replacement causes lot of wierd problems.
Just like the human body cuts the blood of the extremities when someone is freezing to
death, mercedes cuts the power to 'uneccessary' things like, starting with the radio, then wipers, dash etc.


Any work on the trans other than just an oil and filter change will likely need
to be connected to STAR diag and have adaptations reset.
How these things happen?
Old dying battery, Oil in the trans harness, oil in the cam sensor harness...causes some issues.
Water intrusion can cause issues with Canbus until things dry out...

Not exactly sure what things you have happening at this point.
Mechanic says to trash the car but you give little detail.