2008 Mercedes Benz Ml350 problems, complaints & recalls
Most-reported problem areas: Steering (21) · Electrical System (5) · Service Brakes, Hydraulic (4)
🧭 Reliability snapshot
Compared against other Mercedes Benz Ml350 model years — complaint volume vs the model's median year, recalls and severity. How we score →
🛣️ Complaints by mileage
52 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 (85)
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
Visibility/Wiper 2026-04-20 · LI77.21-P-075806 · Service Bulletin/Repair Instructions
complaint the sliding sunroof glass panel of the panoramic roof reverses during the closing process, either once or multiple times, without an entrapment (anti‑pinch) event being detected. the concern may occur temporarily or repeatedly during normal closing operation. cause the automatic reversing
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
Showing the 6 most recent of 85 bulletins. Search all of them free at nhtsa.gov.
What owners report
2024-04-17 · Suspension:front:control Arm:upper Arm“see attached document for complaint…”
2022-09-16 · Service Brakes, Hydraulic“the contact owns a 2008 mercedes-benz ml350. the contact stated upon taking the vehicle to the dealer for servicing, he was informed that the vin was included in nhtsa campaign number: 22v315000 (service brakes, hydraulic) however, the part to do the recall repair was not yet available. the contact stated that the vehicle remained at the dealer for…”
2022-09-08 · Service Brakes, Hydraulic“the contact owns a 2008 mercedes-benz ml350. the contact received notification of nhtsa campaign number: 22v315000 (service brakes, hydraulic) however, the part to do the recall repair was not yet available. the local dealer was contacted. the contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. the m…”
2022-08-17 · Service Brakes, Hydraulic“the contact owns a 2008 mercedes-benz ml350. the contact received notification of nhtsa campaign number: 22v315000 (service brakes, hydraulic) however, the part to do the recall repair was not yet available. the contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. the dealer was made aware of the issu…”
2022-07-07 · Service Brakes, Hydraulic“the contact owns a 2008 mercedes-benz ml350. the contact received notification of nhtsa campaign number: 22v315000 (service brakes, hydraulic) however, the part to do the recall repair was not yet available. the dealer was made aware of the issue. the contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repai…”
2022-03-29 · Steering · 38,000 mi“the contact owns a 2008 mercedes-benz ml350. the contact stated while driving approximately 65 mph, the steering wheel failed to respond as designed. the contact drove the vehicle safely off the road. the vehicle was taken to the local dealer to be diagnosed. the contact was made aware of a power steering rack leak. the vehicle was repaired; howeve…”
2020-12-08 · Seat Belts“rear left and right passenger seatbelt mechanisms (retracting function) are defective; belts don't want to retract back in after they have been pulled out/used…”
2020-02-19 · Seats · 167,000 mi · 🔥 fire“after starting up the car and turning on the seat heaters we noticed a strong burning smell. we had just entered a slip road and my wife (who was driving) felt a burning in her lower left side. next thing... she was on fire! her winter coat bust into flames and after pulling over i grabbed her out of the drivers seat and rolled her in the snow to …”
2019-06-07 · Service Brakes“faulty wiring in the brake light harness that could cause fire. wiring commonly arcs causing the bulbs to burn out and could potentially cause a fire. mercedes has other cars with this same problem, but won't address it on the ml350's. they even made a part to correct this problem, but demand car owners pay out of pocket to fix mercedes faulty wiri…”
2019-01-10 · Steering“steering wheel get hard then soft on turn causing lose of control i took it to my mechanic and said its the rack & pinion i look online for recall thier is one for steering rack so i call the dealer they said mine is not …”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.