2007 Mercedes-Benz R320 Electrical system Problems
- Complaints
- 3about this part
- Share
- 21%of 14 total for the year
- Median mileage
- 75,100miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the electrical system of the 2007 Mercedes-Benz R320, 21% of the 14 complaints for this model year. Where a mileage was given, the median is 75,100 miles.
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.
“Engine 'died' (vehicle lost all power) while traveling at highway speed. I had to pull vehicle over on side of the road with no power assistance steering or braking. Brough it to the dealer for service 8/8/12, stalled two more times while enroute. I was told that it is a failed camshaft sensor. I looked up all safety recalls on vehicle, and found one for the crankshaft sensor in 2008. I was told that my failed camshaft sensor is different and is not covered by the manufacturer, even though it produces the same symptom/result as a failed crankshaft sensor. …”
NHTSA complaint #10469682, filed 2012-08, 75,200 miles“I took my car to the Mercedes-Benz dealer in wilsonville oregon, the service manager told me that the R320 cdi is the worst car Mercedes-Benz ever built, and they kept charging for repairs each time with a new problem. I was also told the brake lamp in the rear needs a software update other wise my lights will not function properly. Do you think it is a safety issue, if my tail lamp and my brake lamp will not work until I update the software for 150 dollars?”
NHTSA complaint #10824344, filed 2016-02“The contact owns a 2007 Mercedes-Benz R320. The contact stated the vehicle failed to start in very cold weather. The contact stated that after changing the battery several times, the failure continued to occur. Additionally, while operating the vehicle, the front and rear exterior lights failed to illuminate as needed. The contact stated that the failure was intermittent. The cause of the failure was not yet determined. The local dealer was notified of the failure, but no assistance was offered. The manufacturer was not yet contacted. The failure mileage was 75,000.”
NHTSA complaint #11506547, filed 2023-02, 75,000 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…
- 10209888Mar 1, 2022Complaint Airscarf nonfunctional, fuse may have triggered. Cause The electrical wiring harness is trapped between the height adjustment gearing and the cushion frame. Remedy…
- 10205233Aug 5, 2013Mobile phone cotacts are not transferred completely.
- 10041024Mar 9, 2011Mercedes-benz: the fuel level indicator is wrong.
- 10033070Dec 16, 2009Xentry (mercedes): engine warning lamp is currently on or was on and a delay fault of the camshaft adjust to current or stored in the engine control unit. Models 171, 203, 209…
- 10032568Aug 1, 2009Mercedes benz service campaign: see document search button for owner letter. Software calibration number (scn) coding; engine control module. The vehicles fuel tank leak…
- 10023372Jan 15, 2008Mercedes-benz models ml63, ml320, ml350, ml500, r320, r350, r500 with code 489 (airmatic suspension) - airmatic inoperative/ (visit workshop) displayed in instrument cluster…
- 10023791Nov 1, 2007Models ml350, ml500, ml63, ml320, ml550, gl450, gl320, gl550, r350, r500, r63, r320 - my2007-2008. Install rear enterainment software.
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2007 | 3 | 21% |
Other parts of the 2007 Mercedes-Benz R320
3 complaintsBody and structure
2 complaintsSuspension
2 complaintsBrakes
1 complaintsElectronic stability control
1 complaintsExterior lighting
1 complaintsFuel system
1 complaintsSeats
1 complaintsTires
1 complaintsTransmission and drivetrain
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 2007 Mercedes-Benz R320
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 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