Mercedes Benz ML320 owners have reported 3 problems related to engine cooling system (under the engine and engine cooling category). The most recently reported issues are listed below.
While driving approximately 20 mph engine overheated and started to smoke. Vehicle was towed to a dealer, who found harmonic balancer defective. This caused damage to the oil pan, resulting in an oil leak and smoke.
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all problems of the 2000 Mercedes Benz ML320
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The vehicle coolant ended up in the transmission. Probable problem with hoses or connection.
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all problems of the 1998 Mercedes Benz ML320
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1998 Mercedes Benz Ml320, 47k miles, harmonic balancer loosened, ground through timing cover and upper oil pan leading to rapid loss of oil. Could have been a safety issue to cars behind.