The 2008 Mercedes-Benz Ml550 has 2 NHTSA recall campaigns affecting an estimated 365,898 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 24 complaints with NHTSA, most often about the electrical system. Last updated July 5, 2026.
Recall campaigns
SERVICE BRAKES, HYDRAULIC24V2980002024-04-2615,604 affected
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.
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…
SERVICE BRAKES, HYDRAULIC22V3150002022-05-09350,294 affected
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…
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…
Complaints by component
ELECTRICAL SYSTEM
5
STEERING
4
AIR BAGS
2
1crashes
SEAT BELTS
2
SERVICE BRAKES, HYDRAULIC
2
UNKNOWN OR OTHER
2
BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING
1
ENGINE
1
ENGINE AND ENGINE COOLING
1
EXTERIOR LIGHTING
1
Total complaints24
What owners report
Verbatim reports filed with NHTSA, lightly edited for readability and with personal
information removed.
“Engine died and won't run. Known issue with mb balance shaft that they refuse to repair or help with the cost of a $8k job. Highly disappointed.”
“Unknown”
“Cooper tire evolution 245/65r17 - tire tread separation - the entire tread out layer came off of the driver side front tire while driving on the freeway - the tire was not deflated - the entire tread hit the driver side mirror breaking it completely off - hitting driver window and deploying all…”
“The contact owns a 2008 mercedes-benz ml550. The contact received notification of nhtsa campaign number: 22v315000 (service brakes, hydraulic) however, the part to do the recall repair was not yet available. An unknown local dealer was contacted. The contact stated that the manufacturer had…”
“The contact owns a 2008 mercedes-benz ml550. The contact received notification of nhtsa campaign number: 22v315000 (service brakes, hydraulic) however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall…”
“Back sit the seat belt locks in place and it does not lose its locked mechanics. I have found that several people are having the same problem. Here is a link to a website video describing the problem. Https://www.youtube.com/watch?v=zwzmuswnolk. I have found the problem is a small baring locking…”
“Safety defect rear sam acting up after rain . No lights no fuel gauge no remote no turn signal while driving almost had an accident”
“Safety defect rear sam acting up after rain . No lights no fuel gauge no remote no turn signal while driving almost had an accident”
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL,
FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2008 Mercedes-Benz Ml550 as of
July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page
contains ads and affiliate links. Full methodology.