Mirror Heater

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 1999 Mercedes-Benz E430, 1999 Mercedes-Benz E320, 1999 Mercedes-Benz E300, 1998 Mercedes-Benz E430, and 1998 Mercedes-Benz E320. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Outside mirror heater should only work when air temperature is less than 59°F (15°C).

Turn ignition switch to RUN position. After approximately one minute, feel both outside mirrors. If either mirror does not heat up, check the following as possible cause and repair as necessary:

Perform TEST 8: PASSENGER'S SIDE HORIZONTAL ADJUSTMENT MOTOR TEST under SYSTEM TESTS.
Perform TEST 9: PASSENGER'S SIDE MEMORY POTENTIOMETER VOLTAGE SUPPLY under SYSTEM TESTS.