@Technical Service Bulletin # LI54-21_P-049150 Date: 100312
Body - Seat Heater Inop. Or Heat Output Too Low
Seat heater is inoperative or heat output is too low
Topic number LI54.21-P-049150
Version 1
Design group 54.21 Control modules/modules
Date 03-12-2010
Validity Model series 207/212: SOP up to 28.02.2010; model series
204: 01.06.2009 - 28.02.2010
Reason for change
Reason for block
Complaint:
The LEDs in the relevant button can be activated but the seat heater remains inoperative.
The complaint occurs primarily at low temperatures and while driving with few or no consumers activated.
Cause:
The seat heater is shut down due to an overvoltage detected at the rear SAM.
Remedy:
Using SDS version 01/10 or later, flash with current rear SAM software and perform SCN coding.
Symptoms
Work units
2010 Mercedes Benz E 550 Sedan (212.072) V8-5.5L (273.971) Page 379
2010 Mercedes Benz E 550 Sedan (212.072) V8-5.5L (273.971) Page 380
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