cl63 amg engine issues

[jays705]

Hello

the car is a CL63 AMG with 70,000 miles

Im getting Mercedes start code 3652( P2132) rear throttle valve actuator pottentiometer 2 short circuit to ground or open circuit

Any idea where to start to trouble shoot? so far Ive checked all electrical connections to sensors at front i.e map. cps ect..

The idle is very erratic car jerky and impossible to drive

any help would be great

 

[jays705]

In case anyone else has a similar issues, the fix was opening and reconnecting the connector shown below

The vacuum issue was the brake servo hose loose at the back of manifold

 

[Tonygw]

nice easy fix. like it when things are easy and simple..