2020 Mercedes Benz Glb Class: Recalls, Complaints & California Lemon Law

See attached document for complaint.

NHTSA #11672392

I am submitting this formal complaint regarding a serious safety incident involving my 2020 Mercedes-Benz GLB, which directly reflects the defect outlined in Recall 20V-480 (Rear Spoiler Detachment). Although my VIN is not officially included in the affected range, the exact failure described in the recall occurred on my vehicle. On or about June 16, 2025, at approximately 3:00 p.m., I was driving and I noticed an object in my rearview mirror that had become airborne and was causing vehicles behind me to swerve to avoid it. Moments later, two separate vehicles pulled up alongside me, and the drivers began waving their arms to get my attention. I exited the roadway and pulled into the Walmart parking lot, where a couple in a pickup truck approached me and informed me that the rear spoiler of my vehicle had flown off. I got out to inspect the vehicle, and indeed, the spoiler was completely gone. I returned to the area where I first saw the airborne object, attempting to locate the detached part, but was unsuccessful in recovering it. I contacted Mercedes-Benz USA and my local dealership on June 17, 2025, and was told that because my vehicle’s VIN is not listed under the recall, I would be responsible for the full cost of inspection and repair. Frankly, that position is unacceptable for the following reasons: - Recall 20V-480 describes a defect involving improperly welded rear spoilers on 2020 GLB250 models, which can detach while driving. That is exactly what happened to my vehicle under normal conditions. - The spoiler detached while the vehicle was in motion, creating a dangerous road hazard—just as outlined in the recall. - The vehicle has never been involved in a collision or sustained rear-end damage. It has not been subjected to outside interference. - My VIN has been included in at least five previous recalls, underscoring that my vehicle was part of broader quality issues during that production period.

NHTSA #11678410

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.

NHTSA #11615360

Gap between frame and windshield causing unbearable squealing noise when driving above 75 mph. Unable to hear exterior surroundings and the squealing is causing aggravation to the ear drums of all passengers. Video provided to Mercedes dealer technician and issue has been inspected and confirmed by dealer. I am the 2nd owner of the vehicle and it was purchased around October/November 2022. The issue was noticed during a road trip from Jacksonville to Orlando, FL in December of 2022. There are no warning lamps or messages. However, there appeared to be a minor leak when the heat was turned on but that was not addressed when viewed by the technician. Currently, a timeframe has not been provided by Mercedes when a new windshield will be available from Germany. So at this time, I am still driving the vehicle enduring the noise since that is my only means of transportation.

NHTSA #11506975

I had this safety recall done already why is it not removed it was done at the dealer

NHTSA #11498804

My vehicle have bad smell coming from air conditioner vents. Took to the dealer two time in one month to find out the cause. It smells like mold inside the evaporator coil. Dealer cleaned with some kind of sanitizer to kill the mold. But the smell keep coming back over and over. Vehicle has only 3900 miles on it.

NHTSA #11483842

my car has only 24533 miles and Air bag malfunction message is showing up

NHTSA #11734342

GOT WARNING LIGHT ON IN DECEMBER 7TH 2020 SAYING "FRONT RIGHT AIRBAG MALFUNCTION". TOOK CAR FOR SERVICE AND APPARENT SOLVED ISSUE. TODAY DECEMBER 17TH 2020 THE PROBLEM IS BACK AGAIN.*DT THE CONSUMER SUBMITTED AN INVOICE FOR REPAIRS. *TR

NHTSA #11383890

FOUR WEEKS AGO I TURNED ON MY CAR AND SAW A WARNING LIGHT THAT SAID "LEFTSIDE CURTAIN AIRBAG MALFUNCTION". I IMMEDIATELY CALLED THE MERCEDES 800 NUMBER AND THEY TRANSFERRED ME TO MY LOCAL SERVICE CENTER. I TOOK IT IN AND THE GUY WAS SUPER NICE, THEY PROVIDED ME WITH A LOANER AND HE SAID HE WOULD CALL ME WHEN THE WORK WAS COMPLETE. HE CALLED ME THAT EVENING AND TOLD ME THAT MY CAR WAS READY. I PICKED IT UP THE NEXT MORNING AND THE WARNING LIGHT WAS GONE. YES! FLASHFORWARD THREE WEEKS AND THE WARNING LIGHT CAME ON AGAIN. I CALLED THE SERVICE CENTER AND THEY IMMEDIATELY SET UP A SERVICE APPOINTMENT FOR THAT AFTERNOON. HE WAS AGAIN REALLY NICE AND SAID IT MIGHT TAKE LONGER TO DIAGNOSE AND FIX. NO PROBLEMS WITH THE LENGTH OF TIME AND ONCE MORE THEY PROVIDED ME WITH A LOANER. FOUR DAYS LATER AND STILL WAITING FOR A CALL THAT THE CAR HAD BEEN FIXED. MY MAIN ISSUE IS THAT THIS IS THE 2ND TIME I HAVE HAD THE SAME ISSUE AND I HOPE IT IS THE LAST!

NHTSA #11361424

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.

NHTSA #11617187

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.

NHTSA #11594846

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

NHTSA #11575249

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.

NHTSA #11570269

The contact owns a 2020 Mercedes-Benz GLB250. The contact stated while driving at approximately 30 MPH the vehicle had started shaking as if the engine was going to stall. The contact stated the check engine light was illuminated. The contact pulled over and stopped the vehicle, when she restarted the vehicle it had stopped shaking. The contact stated that the vehicle failure had been intermittent but had become a recurring failure and the vehicle had stalled several times. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that the fuel injectors and a gas cap needed to be replaced. The vehicle had not been repaired. The manufacturer had been informed of the failure. The contact had researched online and related failure NHTSA Campaign Number: 21V961000 (Fuel System, Gasoline). The failure mileage was approximately 54,000.

NHTSA #11489214

TL* THE CONTACT OWNS A 2020 MERCEDES-BENZ GLB250. THE CONTACT STATED THAT THERE WAS AN ABNORMALLY STRONG SMELL OF GASOLINE INSIDE OF THE VEHICLE. WHILE THE CONTACT'S SON WAS ABOUT TO ENTER THE VEHICLE, HE BECAME AWARE OF A LARGE AMOUNT OF GASOLINE LEAKING FROM THE VEHICLE. THE CONTACT HAD THE VEHICLE TOWED TO MERCEDES-BENZ OF LOS ANGELES (1801 S FIGUEROA ST, LOS ANGELES, CA 90015) WHERE THE VEHICLE WAS AWAITING REPAIRS FOR THE FUEL LEAK. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 11,820. *BF

NHTSA #11395972

My GLB250 does not fall under recall 2020070009 however after taking it through the car wash the entire display instrument went out and car will not turn on and off. They are telling me the car had water damage and it is on me to fix?

NHTSA #11545725

THE CONTROL MODULE FOR THE AIR CONDITIONING THAT TELLS THE AIR WHEN TO TURN ON AND OFF ISN'T WORKING. MINE WENT OUT AT 1200 MILES. BRAND NEW MODEL 2020 JANUARY. THERE ARE 120 COMPUTERS ON THIS VEHICLE

NHTSA #11353889

Front and rear suspension/control arms appears to have squeaky noises when approaching a turn or going a speed bump.

NHTSA #11652993

The integral carrier that supports the front axle caused it to fail. Front axle carrier failed and resulted in a loss of steering control, and hit the curb. Luckily, there was no crash, although the Manufactured had warned about the risk of a crash. Here is a recall description: NHTSA ID: 21V990000 Issued: Dec 12, 21 Number of Vehicles: 00038312 STEERING Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2021 AMG GLB35, 2019-2020 A220, and 2020 GLB250 vehicles. The integral carrier that supports the front axle may corrode, causing it to fail. Front axle carrier failure may result in a loss of steering control, increasing the risk of a crash. Dealers will inspect and replace the integral carrier, as necessary, free of charge. Owners were notified of the safety risk on January 28, 2022. A second letter will be sent once the remedy is available. Owners may contact MBUSA customer service at 1-800-367-6372.

NHTSA #11461636

My car has a recall from May 2021, I purchased my car Oct 2022. When asked about the recall the finance manger at Mercedes Benz of South San Francisco, Rapheal Chin stated it was no open recalls on the car. When I pointed out the repair order didn’t match the car fax, it was explained by the salesman that it was completed. But NHTSA says that it was not fixed. When trying to get it fixed my car sat at the dealership for 8 days with no understanding of how to fix my car. This is clear neglect on the manufacturer and is causing me grief! My car says no updates needed, my Mercedes Benz Me App, says no updates needed but yet this recall is still open over a year later. I’ve called customer care 12 times in one day with no help. It seems as though no one throughout the Mercedes Benz company can assist me.

NHTSA #11506576

ON FRIDAY 7/17/2020 AROUNDNOON, I WASDRIVING MYMB GLB THAT WAS BOUGHT LESSTHAN90 DAYS AGO WHEN SUDDENLY THE DASHBOARD WENT BLANK. I COULD NOT SEE SPEED, GAS GAGES OR ANY OTHER SAFETY FEATURES THAT WOULD BE ON THE DASH. I WAS BASICALLY BLINDED. I CALLED MERCEDES 911 AFTER STOPPING THE CAR. WE TRIED TO FACTORY RESET THE COMPUTER ON ADVICE FROM TECH VIA THE PHONE. THIS HAD NO IMPACT ON THE SCREEN. THE MB REP DID NOT OFFER ROADSIDE ASSIST. I HAD TO DRIVE OVER 25 MILES WITH NO DASHBOARD TO GAGE MY SPEED, GAS OR SAFETY LIGHTS. I HAD NO CHOICE AS NO HELP WAS COMING TO GET ME. THIS DEFECT MAKES THIS CAR EXTREMELY HAZARDOUS AND SHOULD HAVE BEEN ADDRESSED PRIOR TO PURCHASE.NHTSA CAMPAIGN ID: 20V246000 RECALL DATE: 2020-05-01SUMMARYMERCEDES-BENZ USA, LLC. (MBUSA) IS RECALLING CERTAIN 2020 GLB 250 VEHICLES. WATER MAY ENTER THROUGH THE WHEEL WELL AREA INTO THE FRONT OCCUPANT FOOT WELLS, POTENTIALLY DAMAGING CERTAIN ELECTRICAL COMPONENTS. THIS MAY RESULT IN THE INSTRUMENT CLUSTER GOING BLANK, OR AN ENGINE STALL WHILE DRIVING WITHOUT THE ABILITY TO RESTART THE VEHICLE.

NHTSA #11340435

The contact owns a 2020 Mercedes-Benz GLB250. The contact received a recall notification for NHTSA Campaign Number: 21V990000 (Steering, Suspension) however, the dealer informed the contact that parts for the recall repair were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was notified of the issue and informed the contact that the parts for the recall repair were not yet available. The contact had not experienced a failure. VIN tool confirms parts not available.

NHTSA #11450937

The contact owns a 2020 Mercedes Benz GLB250. The contact stated that while her husband was driving at approximately 45 mph and merged to the left, the driver was losing control of the steering and crashed into the meridian. The contact noticed that the front axle fractured and detached from the vehicle. A police report was filed. The vehicle was towed to a towing lot. The dealer was not contacted. The vehicle was damaged. The contact received a notification of NHTSA Campaign Number: 21v99000 (steering, suspension). The manufacturer was notified of the failure. The approximate failure mileage was 22,300.

NHTSA #11451402

EXTENDED WARRENTY INFORMATION MERCEDEZ BENZ HAS ISSUED WARRENTY TO THAT APPLIE TO CONDISTIONS AS LISTED ABOVE (EXHAUST VALVE, CYLINER HEAD ) BACK 08/04/2023 THE CAR HAS IN MERCEDEZ BENZ AND HAVE FAILED TO PICK ON THE EXTENDED WARRRENTY REPAIRS AND WE NOW FIND OUT THIS CASED MORE DAMAGE TO THE ENGINE AND NEEDS TO REPLACE CAMSHAT AND , CONTROL VALVE, ROLLER ROCKER ARM, AND ENGINE CAMSHAFT FOLLOWER . IT'S ALL BECAUSE DEALERSHIP FAILED AND NOTFIY US OF NEEDED REPAIRS . THEY ARE WILL COVER THE REPAIS ON EXHAUST VALVE SYSTEM BUT NOT CAMSHAT AND , CONTROL VALVE, ROLLER ROCKER ARM, AND ENGINE CAMSHAFT FOLLOWER . I FEEL DUE THEIR NEGLIGENCE THEY NEED COVER THIS AS WELL THEY ARE ASKING PAYMENT OF $2879.63 FROM ME

NHTSA #11744345

I have a passenger malfunction with airbags warning coming. I also just experienced getting gas. My milage counted down to zero which it never has before and my engine light came on. I went and got gas 3 times spending around $70 and my gas mileage still says 0 and my engine light is on.

NHTSA #11735064

Diagnostics performed and found electrical/component fault and possible wire damage to fuel pump. NECC to drain tank and inspect replace fule pump if necc. Oringally took one week prior and diagnostics led to the possiblility that the cylinder head was malfunctioning, which was a manufacturing defect and covered under an extended warranty, but now advised otherwise. Quote $2200.00. Mileage on vehicle 23,660.

NHTSA #11726066

The vehicle was operating normally the previous night. We drove it and parked it in the driveway that evening, and it was not used again after that. The following morning, we started the vehicle to allow it to warm up and then returned inside the house. Approximately 10 minutes later, we discovered the vehicle was on fire, with flames coming from under the hood. We immediately called 911. The fire department responded and was able to extinguish the fire; however, the vehicle was completely destroyed, and part of our home sustained fire damage. There were no prior issues with the vehicle. We had purchased it in September 2025, and it was in excellent condition. This incident could have resulted in far more serious consequences had it occurred while the vehicle was in motion or if emergency responders had not arrived as quickly as they did.

NHTSA #11717145

The contact owns a 2020 Mercedes-Benz GLB250. The contact received notification of NHTSA Campaign Number: 23V732000 (Service Brakes, Hydraulic, Equipment); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and confirmed that parts were not yet available. The manufacturer was made aware of the issue and confirmed that parts were not yet available. The contact had not experienced a failure. VIN tool confirms parts not available.

NHTSA #11661522

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.

NHTSA #11631409

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.

NHTSA #11633560

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.

NHTSA #11564012

There's a recall on the display monitor the screen will go black sometimes come back on sometimes never come back on there was a update to fix the issue if the update doesn't work they will have to change the display module or computer that controls it when I brought it to the dealer they want to charge me to replace the display or computer , I called the manufacturer and they refused to fix the recall problem

NHTSA #11512281

Driver hit at or around 35 MPH while making a left turn. Side airbags failed to deploy and did not protect driver from head/neck/shoulder injury. Upon impact, the seat belt did not restrain driver's body from thrashing against driver's car door.

Allegedly reported: 2 injuries (as reported to NHTSA). NHTSA #11486681

The contact owns a 2020 Mercedes-Benz GLB250. The contact stated that while driving 65 - 70 mph, a loud noise was heard, and the sunroof glass exploded. The glass shards fell inside the vehicle. There was no impact on the sunroof that could have caused it to shatter. Another vehicle driving from behind the contact’s vehicle informed the contact that a gray object detached from the contact’s vehicle and hit the other vehicle’s frame and cracked the windshield. A police report was filed. No injuries were sustained. The vehicle was towed to the dealer. The vehicle was not repaired and remained at the dealer. The manufacturer was made aware of the failure. The failure mileage was approximately 18,000.

NHTSA #11438054

The contact owns a 2020 Mercedes-Benz GLB250. The contact received notification of NHTSA Campaign Number: 21V354000 (Back Over Prevention, Electrical System) however, the part to do the repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

NHTSA #11478756

I EXPERIENCED AN INCIDENT WITH MY RECENTLY PURCHASED GLB 250 THAT MIRRORS EXACTLY THE 20200070009 RECALL THAT DOES NOT COVER MY VIN. AFTER RUNNING THE VEHICLE THROUGH A CAR WASH, THE DASHBOARD INSTRUMENT CLUSTER WENT BLANK, WITH NO ABILITY TO DETERMINE SPEED, FUEL LEVELS, ETC. WATER AFFECTED THE PROPER COMPONENT OPERATION FOR A PERIOD OF TIME, BUT DID EVENTUALLY RETURN.

NHTSA #11406659

ON 3/23/2021, MY GLB 250 STARTED EXPERIENCING ELECTRICAL AND ENGINE ISSUES AFTER I HAD BEEN STOPPED AT A RAILROAD CROSSING FOR 15 MINUTES WITH THE ENGINE RUNNING AND THE CAR IN PARK. ONCE THE TRAIN PASSED AND I WAS ABLE TO DRIVE, MY INSTRUMENT PANEL STARTED LIGHTING UP WITH EVERY POSSIBLE WARNING LIGHT AND ADDITIONAL WARNINGS THAT SAID TO NOT SHIFT GEARS AND GO TO DEALER IMMEDIATELY. I DROVE APPROXIMATELY 1 MILE AND STOPPED AT A STOP LIGHT, AT WHICH TIME ALL WARNINGS CONTINUED TO GO OFF. I COULD NOT TURN THE CAR ON OR OFF, COULD NOT SHIFT INTO ANY GEAR, THE STEERING WHEEL WAS LOCKED. THE INSTRUMENT PANEL KEPT FLASHING AND SEEMED LIKE THE CAR WAS TRYING TO REBOOT. AS I WAS ON THE LINE WITH MERCEDES ME TO GET A TOW TRUCK, THE CAR WAS FINALLY ABLE TO SHIFT INTO DRIVE AND I WAS ABLE TO DRIVE TO A NEARBY PARKING LOT. THE CAR SEEMED TO BE OPERATING FINE BUT THE YELLOW CHECK ENGINE LIGHT WAS STILL ON. ON MY 10 MILE DRIVE TO THE DEALERSHIP THE CAR STARTED EXPERIENCING THE SAME ISSUE EVERY TIME I HAD TO STOP AT A STOP LIGHT. ONCE AT THE DEALERSHIP THE CAR CONTINUED TO THROW ERROR MESSAGES ON THE DASH.

NHTSA #11404564

The contact owns a 2020 Mercedes-Benz GLB250. The contact stated that upon purchasing the vehicle, the rearview camera failed to activate while reversing. The contact stated that whenever the rearview camera was activated a black or blank screen would be displayed; and the screen remained activated while driving. There was no warning light illuminated. The contact later received notification of NHTSA Campaign Number: 22V232000 (Back Over Prevention) however, the part to do the recall repair was not yet available. The dealer was notified of the failure and informed the contact that parts for the recall repair were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure but did not provide any assistance. The failure mileage was approximately 16. VIN tool confirms parts not available.

NHTSA #11470863

CHECK ENGINE LIGHT AT 1500 MILES

NHTSA #11374667

DEALERSHIP FIRST QUOTED US A LOWER PRICE THEN AT THE TIME OF SELLING CHARGED US MORE I HAVE THE PROVES ,THEN SHOWED US THIS PARTICULAR VEHICLE WHICH THEY SOLD US WITH A SPARE TYRE BUT TOOK OUT WHEN THEY HANDED THE KEY,, WHICH WE REALIZED WHEN WE WERE DRIVING ON THE ROAD. 2ND THE TRUNK WHERE THE TYRE WAS KEPT WAS HANDED OVER BROKEN.3.FIRST WEEK THE CAR HAD AIR BAG WARNING ON 4.THE SUN ROOF WAS TREMBLING AND SHAKING MAKING NOISES IN THE FIRST WEEK 5.THE TRUNK AUTOMATIC FOOT OPENER NEVER WORKED SINCE FIRST WEEK .IN THE FIRST WEEK THE WARNING FOR SERVICING ALSO CAME UP,SO PRACTICALLY WE HAVE BEEN TAKING THIS BRAND NEW VEHICLE TO THE REPAIR SERVICE CENTER EVERY WEEK ,KINDLY SEE THE LOG BOOK ,FEEL TOTALLY UNSAFE DRIVING THIS CAR MERCEDES AMG GLB 2020 BBOUGHT FROM BEVERLY HILLS DEALERSHIP,, LA. WE HAVE ALL THE PROVES PICTURES WHEN REQUIRED.THX

NHTSA #11318509