2009 Mercedes-Benz R350 Electrical system Problems
- Complaints
- 1about this part
- Share
- 7%of 15 total for the year
- Median mileage
- 3,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the electrical system of the 2009 Mercedes-Benz R350, 7% of the 15 complaints for this model year. Where a mileage was given, the median is 3,000 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.
“Wife is disabled with a back injury lumbar support has failed 4 times in 7 months part was finally ordered from germany and the item seems fixed whining noise comes from under the hood. Mercedes engineer says it is a AC pressure release valve...and refuses to fix it again.....car was in the dealership 4 times for this.”
NHTSA complaint #10347761, filed 2010-08, 3,000 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…
- 10205233Aug 5, 2013Mobile phone cotacts are not transferred completely.
- 10041269May 1, 2011Mercedes benz: there is a software problem relating to the tank heater lines.
- 10041024Mar 9, 2011Mercedes-benz: the fuel level indicator is wrong.
- 10038227Dec 8, 2010Mercedes-benz: the starter clicks but does not crank when trying to start. A voltage dip is causing the ignition procedure to fail.
- 10038225Dec 8, 2010Mercedes-benz: diagnostic procedures for the driver authorization system.
- 10038218Dec 1, 2010Mercedes-benz: software update for heater lines.
- 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…
Electrical system: other model years
Other parts of the 2009 Mercedes-Benz R350
8 complaintsVisibility (wipers, defrost, mirrors)
3 complaintsEngine cooling
1 complaintsExterior lighting
1 complaintsFuel system
1 complaintsOther or unknown
1 complaintsSeat belts
1 complaintsSeats
1 complaintsBody and structure
1 complaints
← All problems reported for the 2009 Mercedes-Benz R350
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