SL55/63/65/R230 AMG: SL65 mistakes: P20A2, P202B, P20E1
Thread Starter
Junior Member
Joined: Jan 2018
Posts: 73
Likes: 3
SL 65 AMG
SL65 mistakes: P20A2, P202B, P20E1
Today in my SL65 Check engine light on 
Check OBD and get mistakes:
1. Idle speed regulator P20A2
( positioner in the lower end position )
2. Idle speed regulator P202B
( unstable work )
3. Charge air temperature too high P20E1
The car accelerate correctly.
Only thing I noticed is uneven idling,
the ignition does not misfire on any cylinder.
Maybe someone can help ?
Check OBD and get mistakes:
1. Idle speed regulator P20A2
( positioner in the lower end position )
2. Idle speed regulator P202B
( unstable work )
3. Charge air temperature too high P20E1
The car accelerate correctly.
Only thing I noticed is uneven idling,
the ignition does not misfire on any cylinder.
Maybe someone can help ?
Super Member
Joined: Mar 2010
Posts: 643
Likes: 72
From: London UK
2013 W204 C63 AMG, 2008 W221 S65 AMG
Those code definitions don't make sense.
Read the codes with stat/xentry and see what you have.
Charge air temperature too high is probably the intercooler pump dead.
Read the codes with stat/xentry and see what you have.
Charge air temperature too high is probably the intercooler pump dead.
