2007 Mercedes-Benz GL450 problems & reliability
115 owner complaints filed with NHTSA for the 2007 Mercedes-Benz GL450, alongside 2 safety recall campaigns. 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.
14 complaints report injuries (14 injured).
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Seats | 39 | 34% |
| Electrical System | 27 | 23% |
| Power Train | 17 | 15% |
| Suspension | 11 | 10% |
| Steering | 9 | 8% |
| Service Brakes, Hydraulic | 8 | 7% |
| Vehicle Speed Control | 7 | 6% |
| Engine and Engine Cooling | 6 | 5% |
| Structure | 6 | 5% |
| Engine | 5 | 4% |
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 80,000 miles (middle 50% between 48,000 and 106,366 miles), based on 101 complaints that included mileage.
Complaints by incident year
What owners report
“The contact owns a 2007 Mercedes-Benz GL450. The contact stated that while her husband was driving at an undisclosed speed, he felt a sharp pinch coming from the driver’s side seat. Upon further inspection, the contact’s husband noticed an abnormal hole with smoke coming from the driver’s side seat. There was no…”
Seats · filed Feb 3, 2025
“The contact owns a 2007 Mercedes-Benz GL450. The contact stated that the SRS warning light was illuminated. Additionally, the contact stated that while the dealer was servicing the air suspension strut failures, the dealer informed the contact that the vehicle had sustained severe water damage. The dealer informed the…”
Electrical System · filed Nov 7, 2024
“Blinkers and horn stopped working windshield wipers coming on without being turned on it’s saying drive to workshop without shifting gears and won’t start in the middle of the highway”
Unknown OR Other · filed Oct 22, 2024
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Technical service bulletins
67 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2007 Mercedes-Benz GL450. The 10 most recent:
Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The noise is heard once in each instance when changing direction of travel. Note: Sound file in attachment Cause…
LI35.30-P-058566 · Service Bulletin/Repair Instructions · issued Jul 14, 2026
Complaint Headlamp, 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 Apr 16, 2026
Complaint Headlamp, 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 headlamp…
LI82.10-P-078301 · Service Bulletin/Repair Instructions · issued Mar 9, 2026
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 Feb 25, 2026
Complaint Headlamp, 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 headlamp…
LI82.10-P-078301 · Service Bulletin/Repair Instructions · issued Feb 24, 2026
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-078896 · Service Bulletin/Repair Instructions · issued Feb 24, 2026
Complaint Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The clunk is heard once when changing from forward to reverse (and vice versa). Note: Sound file in…
LI33.30-P-056665 · Service Bulletin/Repair Instructions · issued May 21, 2025
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-078896 · Service Bulletin/Repair Instructions · issued Apr 28, 2025
Complaint Headlamp, 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 headlamp…
LI82.10-P-078301 · Service Bulletin/Repair Instructions · issued Apr 28, 2025
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 Mar 5, 2025
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
The 2007 Mercedes-Benz GL450 has 2 NHTSA recall campaigns — recall repairs are free at franchised dealers regardless of the vehicle’s age.
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 2007 Mercedes-Benz GL450?
- · 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 80,000 miles — budget accordingly if the car is approaching that mileage.