2000 Mercedes-Benz ML320 problems & reliability
166 owner complaints filed with NHTSA for the 2000 Mercedes-Benz ML320. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
13 complaints report injuries (16 injured).
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Steering | 45 | 27% |
| Engine and Engine Cooling | 27 | 16% |
| Electrical System | 20 | 12% |
| Service Brakes, Hydraulic | 18 | 11% |
| Electronic Stability Control (esc) | 15 | 9% |
| Service Brakes | 15 | 9% |
| Air Bags | 14 | 8% |
| Power Train | 12 | 7% |
| Fuel System, Gasoline | 10 | 6% |
| Vehicle Speed Control | 9 | 5% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Mileage when problems occurred
Half of the failures with a reported odometer reading occurred by 79,250 miles (middle 50% between 49,029 and 131,389 miles), based on 104 complaints that included mileage.
Complaints by incident year
What owners report
“I was driving full freeway speed when the brake assist system suddenly engaged which slammed on my brakes immediately and sent me skidding all over the freeway trying to maintain control of the vehicle and not crash into anything. All the while the cars behind me had to veer out of the way. Several accidents were…”
Service Brakes · filed May 10, 2023
“Hard braking suddenly activated without driver input, smoke coming from front wheels. YAW SENSOR malfunction indicated by OBD scanner (checked after incident)”
Service Brakes · filed Apr 5, 2023
“I bought this vehicle from the auction in algona named whitey's public auto auction and that very day I had to put power steering fluid in because there was a leak and it was difficult to turn. I've had the power steering pump replaced and it continues to leak. I got on the internet and started to research and found…”
Steering · filed Nov 5, 2020
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- Brake lamp switch failure.
Preliminary Evaluation PE10050 · opened Dec 21, 2010 · closed May 4, 2011 · led to recall 11V208000
- ELECTRONIC STABILITY CONTROL MALFUNCTION
Preliminary Evaluation PE07007 · opened Feb 1, 2007 · closed Jul 11, 2007
- ENGINE CRANKSHAFT PULLEY FAILURE
Preliminary Evaluation PE03058 · opened Dec 17, 2003 · closed Apr 22, 2004
- POWER STEERING HOSE ASSEMBLY LEAKAGE
Preliminary Evaluation PE03006 · opened Feb 13, 2003 · closed Apr 4, 2003 · led to recall 03V121000
Technical service bulletins
37 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2000 Mercedes-Benz ML320. The 10 most recent:
Complaint Washer fluid system leaks Cause Various possible causes: 1. Washer fluid reservoir itself. 2. Seal on washer fluid pump/washer fluid reservoir. 3. Washer fluid pump. 3.1. Distributor housing leaks. 3.2. Pump…
LI82.35-P-078467 · Service Bulletin/Repair Instructions · issued Oct 23, 2024
Complaint During a phone call, the called party has difficulty understanding/cannot understand the driver, or interference/background noises are audible to the called party during a call. It becomes increasingly…
LI82.70-P-077433 · Service Bulletin/Repair Instructions · issued Sep 28, 2024
Complaint Headlamps leaking or fogged Cause The fogging of the headlamp is a natural phenomenon which can occur under certain climatic conditions. In contrast to a leaky headlamp, physical fogging does not result in a…
LI82.10-P-078307 · Service Bulletin/Repair Instructions · issued Sep 21, 2024
Complaint Headlamp or front fog lamp leaky or fogged Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to any technical impairment of the…
LI82.10-P-078301 · Service Bulletin/Repair Instructions · issued Sep 10, 2024
Complaint Rear lamps fogged up/not leaktight. Cause Fogging of the rear lamps is a natural phenomenon, which can occur under certain climatic conditions. This does not lead to any technical impairment of the rear lamps…
LI82.10-P-078069 · Service Bulletin/Repair Instructions · issued Jul 23, 2024
Crease formation on genuine leather seat covers in vehicles with low mileage â ¢ Objects left on the seats for extended periods of time (pressure marks). â ¢ Objects wedged between the seat backrest and seat…
LI91.18-P-077075 · Service Bulletin/Repair Instructions · issued Dec 4, 2023
Harsh engagement when changing gear range from P to D or R
LI27.50-P-071658 · Service Bulletin/Repair Instructions · issued Sep 30, 2020
Harsh engagement when changing gear range from P to D
LI27.50-P-049281 · Service Bulletin/Repair Instructions · issued Sep 22, 2020
Engine diagnosis warning lamp lights up in instrument cluster, fault code U145400: "Implausible data were received from the ethanol sensor"
LI07.08-P-060993 · Service Bulletin/Repair Instructions · issued Mar 25, 2015
Message in instrument cluster "DISTRONIC PLUSCurrently Unavailable - See Owner's Manual"
GI88.40-P-057430 · Service Bulletin/Repair Instructions · issued Feb 3, 2014
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
No NHTSA recall campaigns name the 2000 Mercedes-Benz ML320 in our current data. Recalls may apply only to certain VIN ranges — always confirm with a VIN check.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2000 Mercedes-Benz ML320?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.
- · Owners most often reported problems around 79,250 miles — budget accordingly if the car is approaching that mileage.