hardly worth mentioning
Crashes / Fires:
0 / 5
Injuries / Deaths:
0 / 0
Average Mileage:
71,400 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2007 Mercedes-Benz ML350 electrical problems

electrical problem

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2007 Mercedes-Benz ML350 Owner Comments

problem #11

Jun 062016


  • 105,502 miles


The contact owns a 2007 Mercedes-Benz ML350. The contact stated that the lighting harness burned the bulbs without warning. The contact stated that the lights remained illuminated and required the contact to manually disconnect the fuses. The vehicle was taken to a local dealer where it was diagnosed that the computer system needed to be replaced. The manufacturer was made aware of the failure and stated that there was no recall. The failure recurred several times and was not remedied. The failure mileage was 105,502.

- Panama City, FL, USA

problem #10

Dec 152015


  • 101,000 miles
1) car is having recurring issue with seat burning due to seat heater. Dealer corrected issue but issue persists. Not able to turn heater on. Dealer claims issue is fixed but when heat seater is turned on, burning smell and smoke fills car. Advised dealer that car is leaking water in since noticed water on the truck in the rear where the computers are. Once water is in, all sorts of electrical light issues happen with the car. 2) car is having transmission issue. Upon research, it seems ML350 has this recurrent issue. Cannot understand why Benz is not having this recall. Car stops moving in the middle of highway. Cannot get it to run. Have to turn the car off, push it aside and try multiple times for car to move.this is extremely dangerous with kids inside truck since that is the reason why I bought truck for over more than 35 K. dealer claims its a transmission cover valve body but does not guarantee repairs. Dealer states even after this repair, the issue could persist and transmission needs to be replaced which could cost another 4000 usd in addition to 2000 to change plate. It is obvious Mercedes Benz has let us down and also has made it dangerous for us to drive their cars. Please investigate this issue. If you go online, everyone with this truck is having this issue and is shelling dollars out to Mercedes dealers for fixes that are not guaranteed.

- Union, NJ, USA

problem #9

Aug 022015


  • 80,000 miles
I backed car out of garage and all instruments on panel started turning in opposite directions. My lights blink off and on, my clock rewinds, ,my radio light get bright then turns dark. This car is garage kept so why is electrical system bad.these things happen when it is stationary and in motion also power steering leak

- Weldon, NC, USA

problem #8

Feb 252015


  • 84,000 miles


Driver's side sam module shorted due to water entering the cargo compartment. Also, liftgate inoperable due to water entering the cargo compartment and damaging the module. Instrument cluster lights remain on after exiting the vehicle and warning lights flash every 8 to 10 seconds until battery drains. 2009 and later ML350 recalled for water intrusion into the cargo compartment via a defective tail light assembly seal and subsequent fire hazard to the liftgate module. Water found in other cavities of the 2007 ML350. Afraid of the fire hazard for the 2007 ML350 as well. Dealer says 2007 ML350 not affected by recall number 2009030003.

- Harvey, LA, USA

problem #7

Mar 042014


  • 75,500 miles
The driver seat caught on fire due to a malfunctioning seat heater. A whole the size of a dime burned through the seat and the flame burned a hole into the coat of the vehicle's driver.

- Lincoln, NE, USA

problem #6

Jun 112013

ML350 6-cyl

  • 41,500 miles
Check engine light stay on: Code 0060 = continuous camshaft adjustment ( right ) : incorrect position of the exhaust camshaft ( P000B ).

- Garland, TX, USA

problem #5

Apr 052013


  • 80,000 miles


The contact owns a 2007 Mercedes Benz ML350. The contact stated that there was a burning smell inside vehicle. The alternator and battery warning lights were also illuminated. The vehicle was taken to a dealer, who inspected the vehicle and found water in the spare tire compartment. The water entered the lift gate control module and caused the module to shorten and burn. The vehicle was not repaired. The manufacturer was not made aware of the failure. The approximate failure and current mileage was 80,000.

- Middlebury, CT, USA

problem #4

Jan 212012

ML350 6-cyl Diesel

  • 97,900 miles
Malfunction in the driver's seat back rest heating system caused melting of the upholstery and of the outer layer of the driver's car coat at the melted seat-back upholstery. No overt fire. Action taken: Switched off seat heat. Bare wires visible inside the seat-back.

- Gates Mills, OH, USA

problem #3

Aug 022011

ML350 6-cyl

  • 54,000 miles
Engine light came on. Take to repair shop, crank sensor bad, changed crank sensor, light came on back, O2 sensor bad, changed O2 sensor, light came back on, finally said worn sprackett in engine sending false reading. Steering pump went bad at 59000. Ac pump pulley broke off at 54,000 miles. Ac/heat comes on by itself, even when vehicle is turn off.

- Queens Village, NY, USA

problem #2

Jul 172009


  • 33,000 miles
The contact owns a 2007 Mercedes Benz ML350. While driving at 55 mph, the instrument panel lights failed, the rear door hatch independently opened and the door locks began sporadically locking and unlocking independently. The vehicle was taken to the dealer at least ten times for the electrical system failure. The dealer advised unknown repairs were made to the vehicle each time yet the failure would recur. The manufacturer was contacted but did not provide any assistance. The failure mileage was 33,000 and the current mileage was 42,000.

- Purcellville, VA, USA

problem #1

Mar 272010


  • 33,000 miles
2007 ML350 driver seat heating element causes fire while children in car.

- Mahopac, NY, USA

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