A/C - Rear Window Defroster Takes Too Long to Work
SI B 64 08 05Heating and Air Conditioning
August 2005
Technical Service
SUBJECT
Heated Rear Window Defroster Not Sufficient
MODEL
E90 (3 Series)
SITUATION
The customer may state that the heated rear window takes an extended amount of time to clear.
CAUSE
Normal operation
CORRECTION
1. Do not replace parts
2. Check that the heated rear window is operating.
3. Check the condition of the battery and charging system using the BMW battery tester.
4. If the above conditions are met, the window is operating as described.