mercedesbenz Workshop Repair Guides

Mercedes Benz Workshop Service and Repair Manuals

All Technical Service Bulletins for Idle Speed: > < By Symptom
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1. Return spring fastened incorrectly to linkage.
2. Idle contact of throttle valve switch (S29/2) not switched.

Remedy:
1. Fasten return spring correctly to linkage.
2. Check idle contact at throttle valve switch. 

B.

Engines 116, 117 as of MY. '86

Cause:
Idle contact of throttle valve switch (S29/2) not switched.

Remedy:
Check idle contact at throttle valve switch, replace throttle valve switch (S29/2) or complete throttle valve assembly if necessary.

Damage Code:
07311 73

All Technical Service Bulletins for Idle Speed: > < By Symptom