My S350 met a problem as follows: when transmission is P, I can gear up as much as I can. But when it is D, the speed is 20km/h as muximum. Please tell me how to solve this problem.

 

huh? You mean when you're in park...you can obviously gear up...but, when it is in D? wha??

 

Hi,
I don't understand you.

Did you mean that you can rev the engine in PARK but that the car will only go at 20 kph max in DRIVE?

Age, Mileage, Historyetc.

Do you have any lights on on the fascia. e.g. Check Engine Light?

Stuart