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Home >> Mercedes Benz >> 2001 >> ML430 >> Repair and Diagnosis >> External Pages >> Different car >> Section 12 (Automatic A/C-Heater Systems) >> Trouble Shooting >> Function Tests >> Residual Engine Heat Utilization Function Test
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Residual Engine Heat Utilization Function Test

WARNING: This page is about a different car, the 2001 Mercedes-Benz SL500 and 2000 Mercedes-Benz SL500. However, it is still accessible from the selected car via links, so may be relevant.

Turn ignition off. Press REST button. Set temperature to more than 79°F (26°C). If this mode is operating properly, heated air will vent from footwell and side outlets, air will leak from defrost outlets and blower speed will be slow. If this mode does not operate properly, perform the following tests: