2007 Mercedes Benz Gl450 problems, complaints & recalls
Most-reported problem areas: Seats (31) · Power Train (11) · Vehicle Speed Control (7)
🧭 Reliability snapshot
Compared against other Mercedes Benz Gl450 model years — complaint volume vs the model's median year, recalls and severity. How we score →
🛣️ Complaints by mileage
101 NHTSA complaints that reported an odometer reading.
Safety recalls (2)
Service Brakes, Hydraulic:power Assist:vacuum 2024-04-26 · campaign 24V298000 · 15,604 vehicles ⚠ DO NOT DRIVE
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2006-2012 ML, GL, and R-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. Moisture may accumulate and cause corrosion in the brake booster housing unit, which can result in reduced brake performance or brake failure.
Risk: Reduced brake performance or brake failure can increase the risk of a crash.
Fix: Owners are advised not to drive their vehicles until the remedy has been performed. Dealers will remove the rubber sleeve, inspect the brake booster, and as necessary, replace the brake booster. All repairs will be performed free of charge. Owner notification letters were mailed on May 24, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. MMUSA's number for this recall is 2024050001/2. This recall is an expansion of previous recall number 22V-315.
Service Brakes, Hydraulic:power Assist:vacuum 2022-05-09 · campaign 22V315000 · 350,294 vehicles ⚠ DO NOT DRIVE
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2006-2012 ML-Class, GL-Class, and R-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. Moisture may accumulate and cause corrosion in the brake booster housing unit, which can result in reduced brake performance or brake failure.
Risk: Reduced brake performance or brake failure can increase the risk of a crash.
Fix: Owners are advised not to drive their vehicles until the remedy has been performed. Dealers will remove the rubber sleeve, inspect the brake booster, and as necessary, replace the brake booster. All repairs will be performed free of charge. Owner notification letters were mailed June 30, 2022. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's numbers for this recall are 2022050014, 2022050015 2022090006, & 2022090007.
Service bulletins (70)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Service Brakes 2026-09-22 · LI42.10-P-078779 · Service Bulletin/Repair Instructions
complaint repeat workshop visit for vehicle vibration while braking from 60mph. note: although the symptom is similar to a tire or wheel vibration, it is usually readily noticeable that it is distinctly different if it happens at all times or only while braking. cause although the cause of the vibra
Structure:body 2026-09-14 · LI82.62-P-078631 · Service Bulletin/Repair Instructions
complaint clanking noise from the area of the speakers in the doors. cause under analysis. remedy to narrow down the cause, first of all remove the door trim. • if the noise continues to occur even with the door trim removed, then continue the diagnosis working towards the speaker and if necessary,
Structure:body 2026-08-06 · LI82.62-P-078631 · Service Bulletin/Repair Instructions
complaint clanking noise from the area of the speakers in the doors. cause under analysis. remedy to narrow down the cause, first of all remove the door trim. • if the noise continues to occur even with the door trim removed, then continue the diagnosis working towards the speaker and if necessary,
Power Train 2026-07-14 · LI35.30-P-058566 · Service Bulletin/Repair Instructions
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 if the complaint is eliminated by experimentally loosening the outboard collar n
Exterior Lighting 2026-04-16 · LI82.10-P-078301 · Service Bulletin/Repair Instructions
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. if a pressure compensation diaphragm is fitted in the housing cover, then the l
Exterior Lighting 2026-03-09 · LI82.10-P-078301 · Service Bulletin/Repair Instructions
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. if a pressure compensation diaphragm is fitted in the housing cover, then the la
Showing the 6 most recent of 70 bulletins. Search all of them free at nhtsa.gov.
What owners report
2025-02-03 · Seats:front Assembly:seat Heater/Cooler · 190,000 mi“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 visible fire present. no medical att…”
2024-11-07 · Structure“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 contact that the water had lea…”
2024-10-22 · Unknown Or Other“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 …”
2023-09-08 · Service Brakes, Hydraulic · 187,000 mi · 💥 crash“the contact owned a 2007 mercedes-benz gl450. the contact received a recall notification of the nhtsa campaign number: 22v315000 (service brake, hydraulic). the vehicle was taken to the dealer where the contact was informed by the dealer that the vehicle had been inspected but the brake booster was not replaced. the contact then stated that approxi…”
2023-06-21 · Seats · 59,050 mi“the contact owns a 2007 mercedes-benz gl450. the contact stated that while driving approximately 50 mph in the rain, there was an abnormal smoke odor inside the cabin of the vehicle. the contact stated that the vehicle then started filling up with smoke. the contact checked and became aware that the back of the front driver's seat was on fire. the …”
2022-12-12 · Air Bags“the steering wheel airbag spontaneously deployed with no prior warning sensors activated or collision (moments after pulling into driveway at home). mercedes benz refuses to take any responsibility, or at least inspect and replace the steering wheel and airbag. driver's arm was partially injured due to deployment, not severe. however the concern re…”
2022-10-17 · Power Train:automatic Transmission:control Module (Tcm/Pcm/Tecm) · 130,000 mi“the contact owns a 2007 mercedes-benz gl450. the contact stated that while driving at an undisclosed speed, the transmission slipped and failed to shift into the intended gear. the vehicle was towed to the dealer where it was diagnosed with transmission failure. the dealer replaced the transmission control module. the manufacturer was made aware of…”
2022-06-06 · Service Brakes“was driving my vehicle on the freeway and pulled off on and exit ramp. brake pedal went to floor with very little braking had to pump the brake pedal to regain control. brakes felt soft. returned home by pumping brakes. no warning lights, next day bled brakes and replaced brake fluid. function restored but no cause could be identified for the air …”
2022-05-30 · Service Brakes“in the past several weeks, whenever i press on the brake pedal firmly at a stoplight or even on the highway, the "low brake light" alarm on the vehicle turns on. i went and checked the brake fluid level, but it is normal. it also seems to take longer to brake the car than before. i'm not sure if it is related to the recent recall or not.…”
2021-11-20 · Unknown Or Other · 153,000 mi“the gl450 has the balance shaft problem .it skipped timing and caused major engine failure.. this problem is prevalent for the m273 engine. the parts wear prematurely. the timing is affected and the 4 cam power train misaligns. the engine quits and the repair is usually over 4000.00. it produces 1208 1200 codes along with misfire codes. i feel mer…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.