2001 Mercedes ML-Class Owner's Manual - Page 227

Instruments and controls Operation Driving Instrument cluster display Practical hints Car care Technical data Index Malfunction and indicator lamps Low engine oil level warning lamp With the key in steering lock position 2, the oil level warning lamp comes on and should go out when the engine is running. If the warning lamp does not go out after starting the engine, or comes on with the engine running and at operating temperature, the engine oil level has dropped to approximately the minimum mark on the dipstick. When this occurs, the warning lamp will first come on intermittently and then stay on if the oil level drops further. If no oil leaks are noted, continue to drive to the nearest service station where the engine oil should be topped to the "full" mark on the dipstick with an approved oil. The low engine oil level warning light should not be ignored. Extended driving with the light illuminated could result in serious engine damage that is not covered by the Mercedes-Benz Limited Warranty. In addition to the warning lamp, the engine oil level should be periodically checked with the dipstick or via the oil level indicator in the odometer display field, for example during a fuel stop, or before a long trip (see engine oil level indicator on page 89 and checking engine oil on page 233). 224 Low engine coolant level warning When the coolant level warning lamp comes on while driving, then the coolant level has dropped below the required level, or the coolant temperature is in the red zone. If no leaks are noticeable and the engine temperature does not increase, continue to drive to the nearest service station and have coolant added to the coolant system, see page 234. If the engine temperature reaches the red zone, move vehicle to an area which is in a safe distance from the roadway and turn off the engine. Also see coolant temperature gauge on page 81. The low engine coolant level warning should not be ignored. Extended driving with the symbol displayed may cause serious engine damage not covered by the Mercedes-Benz Limited Warranty. In cases of major or frequent minor coolant loss, have the cooling system checked at your authorized Mercedes-Benz Light Truck Center as soon as possible. Notes: Do not drive without coolant in the cooling system. The engine will overheat causing major engine damage. Monitor the coolant temperature gauge while driving.