Mercedes Benz C 63 AMG Technical Service Bulletin #LI18-30_P-054921
Date: 121031
Engine/A/T Controls - Intermittent Low Or Reduced Power
Vehicle intermittently has no power or reduced power, engine switches to unit protection function (limp-home mode)
Topic number LI18.30-P-054921
Version 1
Design group 18.30 Oil cooling system
Date 10-31-2012
Validity 204.077/277/377 as of facelift (code 802)
Reason for change
Complaint:
Vehicle intermittently has no power or reduced power, engine switches to unit protection function (limp-home mode)
Cause:
Limits for unit protection function set out too conservatively
Remedy:
Perform software update of engine and transmission control unit.
The software can be obtained from the STAR TekInfo: STAR TekInfo/Star Diagnosis / Downloads - Model 204 AMG with M156 engine and
transmission SRCD
The software will be eventually available with DAS/Xentry version 11/2012.
Note:
Please take into consideration that, even after the temperature threshold is adjusted, the unit protection function may still become active at high
outside temperatures and/or in extreme operating conditions.
In cases of issues still existing under normal operating conditions contact the DTS through the PTSS module.
Symptoms
Control unit/fault code
Date: 121031
Engine/A/T Controls - Intermittent Low Or Reduced Power
Vehicle intermittently has no power or reduced power, engine switches to unit protection function (limp-home mode)
Topic number LI18.30-P-054921
Version 1
Design group 18.30 Oil cooling system
Date 10-31-2012
Validity 204.077/277/377 as of facelift (code 802)
Reason for change
Complaint:
Vehicle intermittently has no power or reduced power, engine switches to unit protection function (limp-home mode)
Cause:
Limits for unit protection function set out too conservatively
Remedy:
Perform software update of engine and transmission control unit.
The software can be obtained from the STAR TekInfo: STAR TekInfo/Star Diagnosis / Downloads - Model 204 AMG with M156 engine and
transmission SRCD
The software will be eventually available with DAS/Xentry version 11/2012.
Note:
Please take into consideration that, even after the temperature threshold is adjusted, the unit protection function may still become active at high
outside temperatures and/or in extreme operating conditions.
In cases of issues still existing under normal operating conditions contact the DTS through the PTSS module.
Symptoms
Control unit/fault code
