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Technical Service Bulletin # LI83-30_P-0536372 Date: 120501
A/C - Blower Occasionally Inoperative/DTC's Stored
Blower occasionally inoperative
Topic number LI83.30-P-053637
Version 2
Design group 83.30 Air conditioning
Date 05-01-2012
Validity Model series 212, model series 207 (codes 802 and 052 or production date up to 01.12.2011)
Reason for change Fault codes moved to Complaint field
Complaint:
The blower is occasionally inoperative at low outside temperatures after engine start
2010 Mercedes Benz E 550 Sedan (212.072) V8-5.5L (273.971) Page 69
If the following fault codes are present in the A/C control panel control unit, proceed as per Remedy:
912 F12 The front blower regulator has a malfunction. There is a short circuit to positive.
912 F11 The front blower regulator has a malfunction. There is a short circuit to ground.
912 F49 The front blower regulator has a malfunction. There is an internal electrical fault.
Cause:
Communication error between air conditioning control unit and blower regulator
Remedy:
Install latest software for A/C control panel, version 1102 or higher or Xentry DVD 03/12.
Replacing the blower motor or the blower regulator does not remedy the problem.
Remark:
Affected vehicles up to YoM 11/02 (codes 802 and 052 or production date up to 01.12.2011)
Symptoms
Technical Service Bulletin # S-46_10-72 Date: 120409
Steering - Warranty Policy Regarding Steering Wheels
Date: April 9, 2012
Order No: S-B-46.10/72
Group: 46
SUBJECT: MY-All, Models All
Warranty Policy Regarding Steering Wheels
Do not submit steering wheels under warranty for the following types of damage (Figure 1):
A. Leather chatter marks possibly caused by keys or rings
B. Scratched leather caused by sharp objects or fingernails
C. Cracks at air bag perforation area caused by improper air bag removal
D. Dents or pressure marks caused by wheel clamps
E. Wooden segment damaged by impact with something
F. Wooden segment mechanically scratched
2010 Mercedes Benz E 550 Sedan (212.072) V8-5.5L (273.971) Page 70
Technical Service Bulletin # LI83-30_P-0536372 Date: 120501
A/C - Blower Occasionally Inoperative/DTC's Stored
Blower occasionally inoperative
Topic number LI83.30-P-053637
Version 2
Design group 83.30 Air conditioning
Date 05-01-2012
Validity Model series 212, model series 207 (codes 802 and 052 or production date up to 01.12.2011)
Reason for change Fault codes moved to Complaint field
Complaint:
The blower is occasionally inoperative at low outside temperatures after engine start
2010 Mercedes Benz E 550 Sedan (212.072) V8-5.5L (273.971) Page 69
If the following fault codes are present in the A/C control panel control unit, proceed as per Remedy:
912 F12 The front blower regulator has a malfunction. There is a short circuit to positive.
912 F11 The front blower regulator has a malfunction. There is a short circuit to ground.
912 F49 The front blower regulator has a malfunction. There is an internal electrical fault.
Cause:
Communication error between air conditioning control unit and blower regulator
Remedy:
Install latest software for A/C control panel, version 1102 or higher or Xentry DVD 03/12.
Replacing the blower motor or the blower regulator does not remedy the problem.
Remark:
Affected vehicles up to YoM 11/02 (codes 802 and 052 or production date up to 01.12.2011)
Symptoms
Technical Service Bulletin # S-46_10-72 Date: 120409
Steering - Warranty Policy Regarding Steering Wheels
Date: April 9, 2012
Order No: S-B-46.10/72
Group: 46
SUBJECT: MY-All, Models All
Warranty Policy Regarding Steering Wheels
Do not submit steering wheels under warranty for the following types of damage (Figure 1):
A. Leather chatter marks possibly caused by keys or rings
B. Scratched leather caused by sharp objects or fingernails
C. Cracks at air bag perforation area caused by improper air bag removal
D. Dents or pressure marks caused by wheel clamps
E. Wooden segment damaged by impact with something
F. Wooden segment mechanically scratched
2010 Mercedes Benz E 550 Sedan (212.072) V8-5.5L (273.971) Page 70
