2008 Mercedes-Benz GL450 Electrical system Problems
- Complaints
- 4about this part
- Share
- 7%of 55 total for the year
- Median mileage
- 150,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the electrical system of the 2008 Mercedes-Benz GL450, 7% of the 55 complaints for this model year. Where a mileage was given, the median is 150,500 miles. 1 of these say a crash was involved and 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.
“Driving on the 99 freeway when out of no where a loud explosion hit my car from behind or on top of my car it scared me so bad, I pulled over to emergency lane but I did not find or know what hit me so I continued home slowly afraid to drive. When I got home I was. checking my car and on top of my car there is a section that has. Electrical or computer components and it had broke lose that is what slammed into my vehicle the electrical cords are still connected or somebody would have been serious hurt Sept 15, 2026 430 in the afternoon”
NHTSA complaint #11768587, filed 2026-10, 229,000 miles“This vehicle, and all others Mercedes-Benz manufactures with an automatic transmission shift selector of this type need an added safety feature to disallow a shift from the neutral position to reverse or drive unless the brake pedal is depressed. …”
NHTSA complaint #10489054, filed 2012-12, 72,000 miles“Vehicle caught fire in my garage. Vehicle was running fine 2 hrs prior. My husband entered the vehicle to run an errand and the vehicle would not start. Tons of light came on the dash, including the airbag had deployed, though the airbag had not deployed. Vehicle was off but still sounded like it was running. Windows or nothing would work. We raised the hood and was not able to discover the issue. We could smell something, but was not sure what it was. We proceeded to go inside our home, but left the garage and hood open so the smell from the vehicle would leave the garage. …”
NHTSA complaint #11444483, filed 2021-12Related 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…
- 10166988Feb 11, 2014Collision Prevention Assist (CPA) may warn for no obvious reason (optical and/or acoustic warning message).
- 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…
- 10041024Mar 9, 2011Mercedes-benz: the fuel level indicator is wrong.
- 10034152Jun 7, 2010Mercedes: battery symbol and service required (in white). Fault message is displayed if the charge level is too low or the park pawl additional battery is defective. In addition…
- 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 2008 Mercedes-Benz GL450
21 complaintsSuspension
15 complaintsBrakes
7 complaintsAir bags
6 complaintsEngine
5 complaintsOther or unknown
5 complaintsBody and structure
4 complaintsTransmission and drivetrain
4 complaintsVisibility (wipers, defrost, mirrors)
4 complaintsWheels
4 complaintsEngine cooling
2 complaintsSeat belts
2 complaints
← All problems reported for the 2008 Mercedes-Benz GL450
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