Nightdriverldn

Here goes. My gears shift hard into all gears when stationery. When my foot is on brakes while I D the engine seems to rev higher and car is raring to go quickly.
Star diagnostic shows only fault as being (fault code 2592 001 component Y77/1 charge pressure positioner) described as Turbo actuator by indie garage..
However
My regular indie thinks it's the Torque Converter in the 722.9 GTRONIC gearbox/tranny. Others agree with him as turbo seems to be working fine. As do the gears while car is driving.
Help!!!

DaveW68

To me it sounds like an issue with the idle speed.

Nightdriverldn

Thanks
Where would I start to check that?

DaveW68

Benz dealer.

marthyh

Or use Das-Xentry to see if any codes stored.
Check maintenance items filters spark-plugs are done timely if not do this first.

Check vacuumlines are ok no leaks etc then throttle-body, map and maf sensor for contamination.

Colin Frolick

Tachometer?