Test 4: Left Front Power Window Switch
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 1999 Mercedes-Benz E430, 1999 Mercedes-Benz E320, 1999 Mercedes-Benz E300, 1999 Mercedes-Benz CLK430, and 1999 Mercedes-Benz CLK320. However, it is still accessible from the selected car via links, so may be relevant.
Connect Hand-Held Tester (965 589 00 01 00). Turn ignition switch to RUN position. Check left front power window switch values. Press back of switch to first detent. Hand held tester should display DOWN. Press back of switch to second detent and hold. Hand held tester should display AUTO, DOWN. Press front of switch to first detent. Hand held tester should display UP. Press front of switch to second detent and hold. Hand held tester should display AUTO, UP. If values are as specified, replace lower control field control module. If values are not as specified, check wiring. See WIRING DIAGRAMS .