Preparation For Function Test
WARNING: This page is about a different car, the 1998 Mercedes-Benz C43, 1998 Mercedes-Benz C280, and 1998 Mercedes-Benz C230. However, it is still accessible from the selected car via links, so may be relevant.
- Check fuses No. F1- 4, F1- 7 and F1- 8.
- Check in-vehicle temperature sensor ventilation fan by placing a small piece of paper over fan vent grille with ignition on. Vent grille is located near dome light. See Figure. If sufficient ventilation is present, paper will remain on vent grille. If not, check ventilation fan voltage supply.
- Put shift lever in "P" and engage parking brake. Run engine until it reaches normal operating temperature.
- Manually open center and side air outlets.
- Ensure recirculation button is not depressed.