Underhood Wiring Problems of Mercedes Benz ML320

Mercedes Benz ML320 owners have reported 5 problems related to underhood wiring (under the electrical system category). The most recently reported issues are listed below.

1 Underhood Wiring problem of the 1998 Mercedes Benz ML320

Failure Date: 05/01/2004

Laundry list of failures. Jack has almost killed me while changing tire. Vehicle fell, almost hitting me but catching side of vehicle before landing on me! hood latch has failed on a few occasions, causing hood to open while vehicle was in motion. Air mass meter failed. Has required 5 (five!) alignments in two years. When brought to dealer's attention, was told nothing was wrong. A month later requires another alignment. Alignment problems causes wear on tires, which has caused hydroplaning and loss of control of vehicle. Vehicle swerves uncontrollably when hits anything other than flat road. Transfer case motor fixed by dealer without consulting. After repair, transfer case motor failed. Dealer states owner responsible for costs. Has had repair of harmonic balancer on front of engine due to excessive heat buildup leading to oil leak and failure of belt tensioner. Window switches have failed twice and fixed at expense of owner. Six different keys have failed @ the cost of $220/key. Rear window defroster causes loss of stereo reception. Rear window wiper motor has failed. Front end makes noise.

See all problems of the 1998 Mercedes Benz ML320 🔎.

2 Underhood Wiring problem of the 1999 Mercedes Benz ML320

Failure Date: 06/23/2003

While driving 25 mph, one of the occupants noticed smoke coming from the left side of the hood. Everyone immediately got out of the vehicle. The fire department was contacted, came and extinguished the fire under the hood. The vehicle could no longer be driven.

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3 Underhood Wiring problem of the 1999 Mercedes Benz ML320

Failure Date: 07/21/1999

Total electrical failure after stopping, towed to dealer in va. For repair. Locks popping up and down like a machine gun, dealer has "fixed" 3 times, cd player failure after a month, dealer replaced complete unit, dash warning lights were either off at starting or some on or all off, dealer found no problem, seems to have healed. We do not trust the vehicle which we purchased new anymore. We are constantly awaiting something else to go wrong.

4 Underhood Wiring problem of the 2000 Mercedes Benz ML320

Consumer states while traveling and without any indication vehicle was on fire under hood on right side, causing damage.

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5 Underhood Wiring problem of the 1998 Mercedes Benz ML320

While driving vehicle at 55 mph battery light illuminated on dashboard, and smoke started to come from under the hood. Dealer was notified.


Other Common Electrical System related problems of Mercedes Benz ML320



ML320 Service Bulletins
ML320 Safety Recalls
ML320 Defect Investigations