hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
66,667 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.

2004 Mercedes-Benz ML350 electrical problems

electrical problem

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2004 Mercedes-Benz ML350 Owner Comments

problem #3

Feb 202016


  • 96,000 miles


During a routine change of a headlight lamp, the maintenance technician discover that the insulation on all four wires in the left front headlight assembly were cracked, disintegrating and missing leaving the bare wires exposed. The maintenance technician would not change the bulb until a new wiring harness was fabricated and the discrepancy was corrected. This is a dangerous situation. The bare wires are in an enclosed headlamp assembly, contacting flammable materials. A short in these wires can lead to system failures, overheating and fire in the headlamp area. Recommend a recall for inspection and if this discrepancy is discovered, recommend an immediate replacement of the wires in the headlamp assembly.

- Houston, TX, USA

problem #2

Dec 312009


  • 104,000 miles
While driving 2004 Mercedes Benz ML350 on public street the engine lost all power while moving at 30 - 35 mph. Lost both power steering control and power braking ability as a result. Was able to avoid collisions and coasted into an off street area safely. Under other circumstances ( high speed freeway travel ) accident may have been certain. Cause determined to be faulty crank sensor. This seems to be common problem with this vintage vehicle and came as no surprise to my mechanic. This is one of the more frightening driving experiences that I've had and am grateful that it did not occur when my spouse was driving this vehicle; she would have had no idea what was happening or what to do. Please look into this problem. If it doesn't fall under the classification of a transportation safety issue then the dot needs to reevaluate what its mission is.

- West Hills, CA, USA

problem #1

Jul 102004

ML350 6-cyl

  • Automatic transmission
  • miles
Thank you for your responses but we are very disappointed and very frustrated with your response. During these 2 year things have gone wrong. We did contact Mercedes-Benz headquarters..market too many times and explain about us car. But they are ignore now we are in the process of launching a lawsuit to replace my 04 ml 350 on the basis of safety. The engine failed 18 times on the road (in addition to all kinds of other problems). We are in California usa--2004 Mercedes Benz ML350 - list problems and much time spent in the service department-- 2004 Mercedes Benz ML350 is the worst automobile I have ever purchased. It has spent half of its life in the service department. Here is a of my problems within the past 28 months: 1.the engine of car shakes and makes noise 2. the engine light is turns on and after that is shut down. Again the car is automatic. It turns off 3.the brake warning light turns on and of intermittently- with out reason 4.diagnose have problem 5.ets failed 6.brake pads, front, include front rotors replaced 7.stalled twice 8.passenger side window failed 9.clicking noise under the vehicle 10.gps not working 11.clicking noise under the vehicle (second time) 12.brake pads, front & rear, include front & rear rotors (second time in less than 8K miles) 13.rear wiper washer container leaking 14.navigation system lcd screen flickering 15.bad battery all of these above make us terrible- the car bring at home only 27 month but have to stay in the shop for 18X times we did contact a mb market for request about the recall and replace for us but they denied it. Now I have go to looking somebody help.

- Perris, CA, USA

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