Mercedes-Benz GLB-Class Complaints

136 consumer complaints on file.

#11633630January 2, 2025
UNKNOWN OR OTHER
Transmission switching to neutral by itself while driving on the highway. This issue has occurred twice in December 2024.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11633560January 1, 2025
STEERING, SUSPENSION, WHEELS
CV joint axle. This car does not maintain its lane. Drives misaligned and sounds like there is a cracking noise like something is breaking under driverside steering wheel. Attention assist comes on often. This issue appeared shortly after purchasing 05/24. The vehicle had been inspected multiple times by Mercedes. Supposedly there were looks bolts underneath that were tightened. Problem persists every-time vehicle is driven.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11631409December 18, 2024
VEHICLE SPEED CONTROL, POWER TRAIN
The contact owns a 2020 Mercedes-Benz GLB250. The contact stated while the vehicle was at a stop light, the accelerator pedal was depressed however, the vehicle lunged backward. There was no warning light illuminated. The contact depressed the brake pedal to stop the vehicle. The vehicle was restarted; however, the failure recurred. The vehicle was taken to the dealer but was not diagnosed or repaired. The contact was informed by the dealer that the failure could not be duplicated. The manufacturer was made aware of the failure. The approximate failure mileage was 50,307.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11617187September 30, 2024
ENGINE
Car constantly cuts out and loses power as well as occasionally shuts off for no reason. Causing very hazardous driving conditions. I have noticed that this is a common issue stated in online forums with this particular car as well. It is more times than not an issue with the engine head and valves.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11615360September 19, 2024
STRUCTURE:BODY:HATCHBACK/LIFTGATE
The contact owns a 2020 Mercedes-Benz GLB250. The contact stated while driving 45 MPH, the rear spoiler detached from the vehicle. There were no warning lights illuminated. The vehicle was taken to the local dealer, where it was determined that the spoiler needed to be replaced. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was approximately 47,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11613119September 6, 2024
TIRES:TREAD/BELT
The contact owns a 2021 Mercedes-Benz GLB250 equipped with Continental Tires, Tire Line: ProContact GX SSR, Tire Line: 235/55/R18, DOT Number: A33LWXX41220. The contact stated while driving 70 MPH, the vehicle began to vibrate with a flapping sound coming from the vehicle. Despite the failure, the contact was able to drive the vehicle to the residence. The contact then drove the vehicle to an independent mechanic where three humps were discovered on the front driver’s side tire that had formed due to thread separation on the inside of the tire. The mechanic referred the contact to a dealer who then referred the contact to the Continental tire manufacturer. The manufacturer informed the contact that the tire should be sent to the headquarters for an inspection. The tire was replaced. The failure mileage was approximately 30,600.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11612434September 3, 2024
BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING, ELECTRICAL SYSTEM
Every time I start my new Mercedes, the backup camera MUST recalibrate itself even if I never put the vehicle in reverse and am driving forward. This happens throughout the entire drive, every single time. The Mercedes forums all corroborate this as other models; not just the GLB, experience this. Mercedes denies anything is wrong and says this is “expected behavior for rear camera calibration”. This makes absolutely no sense why a rear camera would need to recalibrate itself on every drive even when you never place the car in reverse. Furthermore, the backup camera is the “pop out kind” so you constantly hear it popping out and popping back in. It’s extremely distracting as it continues to pop in and out as I slow in traffic at a signal or stop sign. This is with certainty, a manufacturing defect and must be remediated. Thanks for listening as it’s appreciated.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11607732August 10, 2024
ELECTRICAL SYSTEM, ENGINE, UNKNOWN OR OTHER
this car really has a lot of issues and honestly if I didn’t know what to do last night and didn’t know about cars, it could have seriously cost me my life but luckily I was able to move out the way of a truck that was coming fast behind me while I was at a traffic light and when the light turned green the car would not start back up from the automatic stop when you make stops and because the auto shut off never came back on and I had to literally make a split second decision and put it in park and start up again and go quick. The check engine light has been on since July 14,2024 and I bought the car on July 13,2024 and the dealership has not done anything about this issues and this morning these are all the codes that came up and there’s a lot of codes and Mercedes hasn’t called me back even after the calls and emails I’ve sent them, no one is calling me back.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11597573June 28, 2024
UNKNOWN OR OTHER
Power Liftgate (via key fob – SmartKey). Mercedes GLB250. Was told by Mercedes employees that all cars operate the same. oSensor that automatically stops liftgate if it detects an obstruction does not retract to allow someone reaching in the trunk to safely exit the trunk. oThe liftgate stops, but it does not do so until it has hit/touched the objection or obstruction. oWhen you press the trunk button on the key fob, the liftgate only raises slightly (maybe 2 inches). oIf you press the key fob again, the liftgate just continues to go up and down within those few inches and continues to hit/touch the object/obstruction each time you press the button. Half of my body was trapped in the trunk. Suffered injury to shoulder and hand. oI was taking grocery bags out of the trunk and had the key fob in my pocket. oAn item fell out of the bag so I reached into the trunk to grab it. oAs I leaned in, the body of the car must have come into contact with the key fob and the trunk came down (closed). oI did not have time to exit the trunk and ½ of my body became trapped in the trunk. oI had just enough space to move my right hand to take the key out of my pocket. oI pressed the trunk button, but the liftgate did not fully retract. It went up slightly and came back down hitting/touching my body. oI did not have enough room to get out of the trunk. oI was in a garage where no one could hear me scream for help. oI had to push up with my left hand and use excessive force with my back and right shoulder to lift the heavy trunk. Mercedes inspected the car and said nothing is wrong. Letter provided. oSeveral Mercedes employees at the dealership were present when I demonstrated the issue. They had no explanation. oSales manager stated that he tested the trunk (cars located at the dealership) and they do retract but understood my concerns as it only retracts slightly. oNo one seems to understand that serious risk this possesses, unless they were to be trapped i
Crash:
No
Fire:
No
Injuries:
1
Deaths:
0
#11596906June 26, 2024
STRUCTURE
The contact owns a 2020 Mercedes-Benz GLB250. The contact stated while opening the liftgate, the rear spoiler above the liftgate became loosened while raising and scratched the roof of the vehicle. The contact stated that the rear spoiler had not detached. The vehicle was taken to the dealer, and the contact was informed that the failure was caused by external factors, unrelated to NHTSA Campaign Number: 20V480000 (Structure), which had previously been performed. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 40,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11594846June 17, 2024
ENGINE
The engine made a knocking sound and i pulled over on the side of the road took the car to MB dealership to get the recall fixed but i was told the recall cannot be fixed until the engine is fixed. MBUSA refuses to replace the engine even though it is fully covered under warranty. Thus because i cannot get a recall done for my safety unless i get an engine replaced. This is absolutely horrible. MB knows they produced a bad engine and are forcing us to pay out of our pocket then they will fix the recall on the car.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11575249March 4, 2024
ENGINE
Engine failure. Engine has no compression which is causing injection fueler to fail. The head engine has gone bad at 50,000 miles. Head engine must be replaced and is on back order per Mercerdes Benz. After research on the issue I’ve noticed the Year/Make/Model this is issue is common at the 40k-50k mile mark. This is a manufactured issue that Mercerdes needs to fix if so common within the car and also unsafe. Not okay for a new car to have engine failure this early
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11574232February 27, 2024
UNKNOWN OR OTHER
Glass that’s in between the windshield and sunroof
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11572169February 15, 2024
SERVICE BRAKES, POWER TRAIN
The contact owned a 2023 Mercedes-Benz GLB35 AMG. The contact stated that while driving at an undisclosed speed, the brakes were inoperable. The contact stated that while depressing the brake pedal, the vehicle was not braking smoothly. Additionally, the vehicle failed to accelerate as intended. The contact stated that the transmission malfunction warning light was illuminated. The contact stated that the vehicle had been taken to the dealer four times. The contact stated that the first visit with the dealer regarding the brakes, the dealer applied lubricant to the brake pedal. The contact stated that the failure was persistent. The vehicle was taken to the dealer for the second and third time, however the failure could not be duplicated. The contact stated that the failure was persistent. The vehicle was taken back to the dealer for the fourth time, and the vehicle was sold back to the dealer. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure and a case was filed. The failure mileage was approximately 3,200.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11570269February 6, 2024
FUEL SYSTEM, GASOLINE
The contact owns a 2020 Mercedes-Benz GLB250. The contact stated that there was an abnormal fuel odor inside the cabin of the vehicle. There were no warning lights illuminated. The vehicle was taken to the local dealer on three occasions however, the dealer was unable to determine the cause of the failure. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and informed the contact that there were no recalls on the VIN. The contact was referred to the NHTSA Hotline for assistance. The failure mileage was approximately 45,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11569783February 4, 2024
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING, FORWARD COLLISION AVOIDANCE: WARNINGS
Coordinate this complaint with previous complaints reference 11569682 and 11569502, As of last night the car has 1136 miles. I have thoroughly tested the car to the best of my ability and set and reset the settings. The hill decent has only engaged twice. The car is supposed to read speed limit signs and it does show up in the instrument panel but the car speeds up randomly i.e. from 35 to 50 and above to not limited to 35. The adaptive speed control at random will malfunction the car will not slow down and brake. This has happened several times. When turn signal is engaged and you enter turning lane the car may slow down or not. This vehicle I was told is a MBUA corporate vehicle held back at MBUSA for over 2 years then auctioned. Fletcher Jones Las Vegas had the vehicle on the lot with 47 miles and sold it to me with 48 miles. There is no maintenance or service record the driver assist system, hardware, software system was checked, calibrated, repaired or tested. Given the mileage the car was not road tested. " THIS VEHICLE IS A ROAD HAZARD WAITING FOR AN ACCIDENT TO HAPPEN" It needs to be repaired, road tested, and certified safe by MBUSA and Fletcher Jones. What is the secret and reason why MBUSA held back this car and then 2 years later auction it off? My wife nearly rearended a car that had slowed down and. The driver assist failed to slow down and stop the car. I have experienced this and other experience's listed above several times and sometimes 50% of the time and have to manually engage the brake to slow down, stop, and disengage driver assist system.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11569682February 3, 2024
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING, FORWARD COLLISION AVOIDANCE: WARNINGS
All advance driver assistance system has a 50% work fail reliability. It may work it may fail to work, I bought the cat from a Mercades Dealer in Las Vegas with 48 miles on it. The vehicle has approx 900 now. The driver assist system fails daily, it is unreliable, dangerous and a hazard to occupants and others. It needs to be inspected and repaired, recalled.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11569502February 2, 2024
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, FORWARD COLLISION AVOIDANCE: WARNINGS, LANE DEPARTURE: WARNING
Driver assist adaptive speed control, braking, lane control all boxes checked has a 50/50 work fail that is it may work may not work. This is a safety concern that needs to be checked by MBUSA
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11569034January 31, 2024
ENGINE
Cylinder Head gone bad at 35,000 miles
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11564012January 7, 2024
SERVICE BRAKES, UNKNOWN OR OTHER
Since the beginning of the vehicle purchase, we heard fine metal rattling sound on the front driver side tire. Had it checked with the dealer and they recommended no repair. Now driven about 35K miles and started very loud metal scratching sound when wheels turned to right. Inspection showed bent brake cover that was wearing tire uneven. Dealer claims that we went over a large bump that bent the brake cover but no such thing happened and this location is where we have been hearing this fine rattling since buying new. Raising a possibility that the manufacturing and securing process of parts around this area was not done fully and eventually cause inappropriate contact induced brake covering damage and tire wear.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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