2007 Mercedes Benz R320 problems, complaints & recalls
Most-reported problem areas: Suspension (2) · Structure:body (2) · Engine (2)
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 (65)
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 65 bulletins. Search all of them free at nhtsa.gov.
What owners report
2025-11-19 · Service Brakes, Hydraulic“the contact owns a 2007 mercedes-benz r320. the contact stated that the vehicle was taken to the dealer to be repaired under nhtsa campaign number: 22v315000 (service brakes, hydraulic); however, the dealer informed the contact that the vehicle needed a diagnostic test prior to the recall repair. the contact declined to pay for the diagnostic test …”
2023-02-10 · Exterior Lighting · 75,000 mi“the contact owns a 2007 mercedes-benz r320. the contact stated the vehicle failed to start in very cold weather. the contact stated that after changing the battery several times, the failure continued to occur. additionally, while operating the vehicle, the front and rear exterior lights failed to illuminate as needed. the contact stated that the f…”
2018-01-13 · Structure:body · 200,000 mi“panorama sunroof exploded while parked in our garage.…”
2017-11-05 · Structure:body · 203,350 mi“sunroof exploded while parked in garage.…”
2017-02-13 · Power Train · 45,000 mi“transmission model 722.9 failure while driving. creates an extremely dangerous situation that could lead to fatal accidents. transmission completely disengages bringing car to stand still, or it downshifts without any warnings at high speed. feels like the entire transmission is dropping off the car. my car had only 45k miles on it when it first ex…”
2016-02-04 · Engine“i took my car to the mercedes-benz dealer in wilsonville oregon, the service manager told me that the r320 cdi is the worst car mercedes-benz ever built, and they kept charging for repairs each time with a new problem. i was also told the brake lamp in the rear needs a software update other wise my lights will not function properly. do you think …”
2015-02-27 · Suspension · 109,000 mi“without warning there was failure of rear passenger and driver side air spring. *tr…”
2014-09-24 · Electronic Stability Control (Esc) · 103,000 mi“esp inoperative message appears. wipers went on (although they were off at the time) turn signals were inoperative and interior lights not working.. i pulled to the side of the road and was unable to engage park or reverse. i shut the ignition off and neutral was automatically engaged but park still not working. removing the key engaged park. resta…”
2014-09-04 · Suspension · 51,818 mi“preface: i own an automotive repair shop in carrollton texas. i have been working on cars since 1968. i am a three-time certified mercedes-benz master technician. in december, 2012 i replaced the right front air spring on a 2007 mercedes r-320. the manufacturer is aren't industries. their part number is a-2587. less than two months later, th…”
2014-06-13 · Visibility/Wiper · 138,000 mi“without notice front windshield wipers just stopped working while driving in the rain. almost caused an accident. took car to dealership, who could not determine issue. *js…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.