2009 Mercedes-Benz ML320 Electrical system Problems
- Complaints
- 3about this part
- Share
- 11%of 28 total for the year
- Median mileage
- 89,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the electrical system of the 2009 Mercedes-Benz ML320, 11% of the 28 complaints for this model year. Where a mileage was given, the median is 89,000 miles. 1 a fire, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Our vehicle caught fire. My wife and I had just gotten off of the interstate when we started to smell an odd smell. We pulled into a hotel parking lot where we started to see smoke coming from the front of the vehicle. I stopped the vehicle in a hotel driveway, put the vehicle in park. We got out of the vehicle and saw flames underneath the vehicle. We called 911 and hotel staff tried to extinguish the fire but it continued to grow. The fire dept. Arrived and put out the fire. Photos are attached.”
NHTSA complaint #11308022, filed 2020-02, 89,000 milesRelated service bulletins
- 11015640Mar 5, 2025Complaint During a phone call, the called party has difficulty understanding/cannot understand the driver, or interference/background noises are audible to the called party…
- 11008091Sep 28, 2024Complaint During a phone call, the called party has difficulty understanding/cannot understand the driver, or interference/background noises are audible to the called party…
- 10248173Dec 11, 2023Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (âÂÂMYâÂÂ) 2009-2012 GL-Class, ML-Class, R-Class, and…
- 10166088Jul 12, 2014Noises from the mounting of the rear weight sensing system (WSS) sensors
- 10167007Feb 25, 2014Engine diagnosis warning lamp active. Fault code 20BE1B and/or 20BD1B (The heating element of the AdBlue tank has a malfunction) is logged in the Blue-Tec control unit.
- 10167006Feb 12, 2014Engine diagnosis warning lamp active. Fault code 20BE1B and/or 20BD1B (The heating element of the AdBlue tank has a malfunction) is logged in the Blue-Tec control unit.
- 10167040Feb 1, 2014This Service Campaign has been initiated because Daimler AG (DAG), the manufacturer of Mercedes-Benz vehicles, has determined that the mbrace software does not correspond to…
- 10205233Aug 5, 2013Mobile phone cotacts are not transferred completely.
- 10167564Jul 12, 2013Customer experiences low battery conditions, resulting in jump starts, and eventually requiring battery replacement.
- 10167563Jul 8, 2013The COMAND unit does not start or the COMAND display remains dark. The COMAND unit cannot be operated. Note: The problem disappears after a lengthy idle period (>6h) or after…
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2009 | 3 | 11% |
| 2008 | 4 | 19% |
| 2007 | 2 | 13% |
| 2003 | 2 | 9% |
| 2002 | 19 | 22% |
| 2001 | 16 | 12% |
| 2000 | 20 | 12% |
| 1999 | 3 | 2% |
| 1998 | 21 | 16% |
Other parts of the 2009 Mercedes-Benz ML320
9 complaintsEngine
6 complaintsEngine cooling
4 complaintsTransmission and drivetrain
4 complaintsAir bags
3 complaintsOther or unknown
3 complaintsBody and structure
3 complaintsBrakes
2 complaintsExterior lighting
1 complaintsLatches, locks and linkages
1 complaintsSuspension
1 complaintsTires
1 complaints
← All problems reported for the 2009 Mercedes-Benz ML320
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology