Delay in engaging reverse gear

Page may contain affiliate links. Please see terms for details.

Dwayne Lara

New Member
Apr 26, 2017
A Class W168 1998 A160 Petrol automatic
Hello everyone. I have a 1998 A160 W168 with an automatic transmission (722.7). Ever since I bought it a year or so ago it has had a problem with the reverse gear. When selected, it will engage fine when the engine is cold, but then it only engages after a delay when the engine is running hot. It seems as if the reverse gear is in neutral and will only engage when I press down the accelerator and the engine revs up. This then happens with a thud and the car reverses quickly backwards, as one would imagine. I have had the gearbox checked by an auto transmission specialist and there was nothing wrong with it (I am told). I also sent the FTC with the valve body to ECU Testing and also fine there. Carsoft 7.4 indicates an EGS error code P123F which I have been unable to identify anywhere. Would anyone have any ideas? Could it be an electrical problem rather than a mechanical one? I can't figure this one out. Cheers.

Sent from my iPhone using Tapatalk
Yes, should have said that, sorry. I bought myself one of those long transmission dipsticks. In any case, wouldn't inadequate fluid level affect all the gears, not just the reversing one?

Sent from my iPhone using Tapatalk

Users who are viewing this thread

Top Bottom