Mercedes Benz GL550 owners have reported 6 service brakes related problems since 1996. Table 1 shows the 1 most common service brakes problems. The number one most common problem is related to the vehicle's service brakes (6 problems). For details of each of the problem category, use the links in the table.
| Problem Category | Number of Problems |
|---|---|
| Service Brakes problems |
The contact owns a 2008 mercedes-benz gl 550. The contact stated that while driving 40 mph, the brake pedal was depressed; however, the vehicle failed to stop as intended. The brake pedal was depressed to the floorboard and the vehicle stopped. The brake failure and front passenger air bag warning lights later illuminated. The vehicle was towed to an independent mechanic to be diagnosed, and it was determined that there was a brake fluid leak in the air suspension system. The contact was informed of an unknown recall; however, the VIN was not associated with a recall related to the failure. The contact was advised to take the vehicle to the dealer for assistance. The failure mileage was approximately 121,667.
On 8/5/2026, the power boost on the vehicle was lost while at a nearby shopping center. Braking became very difficult and it was dangerous to drive even a little distance. There were no warning lights from the vehicle. We had it towed to an independent repair shop where they determined the brake booster had failed. They did a recall check and saw that it didn't apply to our specific vehicle. They repaired it which cost $2500. Later, we did research and found that there is an expanded recall, 22v315000, which includes our year, make, and model! our vehicle brake booster failed in the same manner as expressed in that recall. I still have the failed brake booster itself. We'd like you to have mercedes expand the recall to include our vehicle as well as those with similarly sourced brake boosters. I called mercedes customer service and they simply confirmed that our vehicle wasn't covered by the recall but to contact NHTSA to file a complaint to start the inclusion process.
Vehicle was parked on the driveway, brake sign came on upon start and system malfunction error showed on screen, vehicle started lowering automatically and air compressor stopped working.
The contact owned a 2009 mercedes-benz gl 550. The contact stated that while driving at 15- 20 mph the driver in front of him was attempting to turn but swerved to the left in his lane the brake pedal was applied but was slow to respond. The contact crashed into a unknown Mini van. There were no warning lights illuminated. The air bags did not deploy. There was no reported fire. A police report was filed. The passenger occupant sustained injuries to the her back and shoulder and medical attention was provided. The vehicle was towed to a tow lot. The contact received NHTSA campaign number: . 2v315000 (service brakes, hydraulic). After the failure. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the issue but provided no additional assistance. The manufacturer requested that he preserve the vehicle. The vehicle was deemed a total lost. The failure mileage was approximately 200,000.
This is relative to the brake booster recall. Mercedes-benz conducted a test and there was significant corrosion that exceeded the normal limits allowed. I am still under a stop drive order but I have not been provided any further instruction or provided a vehicle to drive while my vehicle awaits repair or buy back. Customer service representatives have not corresponded with me despite multiple emails and calls over the last 2 -3 weeks. I need a vehicle repaired so it can operate safely or I need another vehicle to drive while awaiting available parts please.
The contact owns a 2011 mercedes-benz Gl550. The contact received notification of NHTSA campaign number: 22v315000 (service brakes, hydraulic). The contact stated that while reversing, the brake pedal was depressed with an abnormal hissing sound coming from the brake pedal. The contact stated that the sound was audible since the vehicle was purchased in 2019. The local dealer was contacted. The manufacturer was made aware of the issue. The contact received a vehicle compliance letter from the manufacturer, which stated that a mobile mechanic could be sent to the residence to inspect the vehicle, and the dealer would offer tow service. However, when the dealer was contacted, the dealer refused to assist the contact with the tow service or a mobile mechanic. The contact stated that the failure persisted. The vehicle remained at the residence and had not been driven due to the failure. The failure mileage was approximately 22,000.