IllustrationWHILE AT FREEWAY SPEEDS THE RIGHT FRONT WHEEL BEARING BEGAN TO GROWL AND CONTINUED TO GET WORSE UNTIL REPLACED AT A DEALER. IT SEEMS IT IS PREMATURE FOR A BEARING TO FAIL, THE VEHICLE HAD BEEN SERVICED AT ABOUT 121000 MILES. *TR
2008 Mercedes Benz ML320
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2008 Mercedes Benz ML320 do not stand out strongly from the model-year median of 28.
About this comparison →How this year compares
Owner complaints by model year
Compare all ML320 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 16 of 21 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Exterior Lighting. Review the 6 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 4 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Steering. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
3 crash reports0 fire reports2 injury reports
Steering complaints
3 reportsAT 57,000 THE RACK AND PINION SEALS WENT OUT ON THE STEERING MAKING THE CAR EXTREMELY DIFFICULT TO STEER. REAR SEAT BELTS HAD NEVER BEEN USED UNTIL 12/1/14 AT WHICH TIME I FOUND THEY WERE NOT USABLE. THEY WERE LOCKED INTO POSITION. THE SERVICE WRITER AT THE MERCEDES DEALERSHIP SAID HE OWNED THE SAME MODEL AND HAD TO REPLACE H…
Read full complaint
AT 57,000 THE RACK AND PINION SEALS WENT OUT ON THE STEERING MAKING THE CAR EXTREMELY DIFFICULT TO STEER. REAR SEAT BELTS HAD NEVER BEEN USED UNTIL 12/1/14 AT WHICH TIME I FOUND THEY WERE NOT USABLE. THEY WERE LOCKED INTO POSITION. THE SERVICE WRITER AT THE MERCEDES DEALERSHIP SAID HE OWNED THE SAME MODEL AND HAD TO REPLACE HIS TWICE. DEALER AND FACTORY BOTH REFUSED TO REPAIR EITHER ITEM. *TR
2008 MERCEDES ML320. CONSUMER WRITES IN REGARDS TO STEERING WHEEL ISSUES. *TGW THE CONSUMER STATED BEFORE THE VEHICLE REACHED 50,000 MILES, HE BEGAN TO HEAR AN UNUSUAL SOUND WHEN SHE TURNED THE STEERING WHEEL. THE CONSUMER'S HUSBAND ADDED POWER STEERING FLUID, BUT THE NOISE WOULD SOON RETURN. THE CONSUMER LEARNED OF A RECALL…
Read full complaint
2008 MERCEDES ML320. CONSUMER WRITES IN REGARDS TO STEERING WHEEL ISSUES. *TGW THE CONSUMER STATED BEFORE THE VEHICLE REACHED 50,000 MILES, HE BEGAN TO HEAR AN UNUSUAL SOUND WHEN SHE TURNED THE STEERING WHEEL. THE CONSUMER'S HUSBAND ADDED POWER STEERING FLUID, BUT THE NOISE WOULD SOON RETURN. THE CONSUMER LEARNED OF A RECALL. HOWEVER, HER VIN WAS NOT INCLUDED. ACCORDING TO THE INVOICE, THE LEAK WAS COMING FROM THE POWER STEERING RACK.
Official recalls
224V298000 · Service Brakes, Hydraulic:power Assist:vacuum
Apr 26, 2024
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.
Consequence & remedy
Consequence: Reduced brake performance or brake failure can increase the risk of a crash.
Remedy: 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.
22V315000 · Service Brakes, Hydraulic:power Assist:vacuum
May 9, 2022
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.
Consequence & remedy
Consequence: Reduced brake performance or brake failure can increase the risk of a crash.
Remedy: 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.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.