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Home >> Porsche >> 2003 >> 911 Carrera 4S, Standard >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Instruments, Fuel Gauge, Alarm System - (Removal & Installation) 911 CARRERA (996) >> Coolant warning light in instrument cluster

Coolant warning light in instrument cluster

NOTE: In order to prevent excessive engine coolant temperature, make sure that the cooling-air ducts are not obstructed by coverings (e.g. films, stone shields). Leaves and insects on the radiator/condenser fins can be vacuumed off or removed using a high-pressure cleaner.

Four functions of the coolant warning light:

  1. Engine coolant level too low
    • light flashes slowly (0.5 Hz)
  2. Engine compartment temperature too high
    • light flashes slowly (0.5 Hz) (engine compartment blower might be faulty)
  3. Engine coolant temperature tool high
    • light is lit; pointer on the right
  4. Temperature sensor at water outlet faulty
    • light flashes rapidly (1 Hz); pointer on the right
    NOTE: The temperature warning in point three is indicated if the conditions"engine coolant temperature too high" and"engine coolant level too low" are present simultaneously.