NHTSA Owner Complaint Log
This page lists owner-reported complaints filed with NHTSA for the 2017 Mercedes-Benz GLC-Class. Complaints are unverified consumer reports submitted to NHTSA and do not by themselves prove a defect or defect rate.
Data synced from NHTSA on May 4, 2026
The contact owns a 2017 Mercedes-Benz GLC300. The contact stated that while driving at an undisclosed speed, the windshield wiper blades detached. The contact stated that the vehicle was purchased new in 2017. The contact stated that whenever it rained and the wipers were activated, the wiper blades would detach and flop over the front windshield. The contact stated that the vehicle had been taken to the dealer several times and the wiper blades had been replaced several times; however, the failure was persistent. 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 500.
THE ENGINE SUDDENLY WENT UP IN FLAMES WHILE DRIVING,MY WIFE SWITCHED OFF THE IGNITION AND GO OUT OF THE CAR. THERE WAS A BIG HOLE AND MERCEDES AUTHORIZED DEALER SIAD THIS IS A CATASTROPHIC EVENT. THIS CAR IS NEW PURCHASED ON OCTOBER 31ST 2016 MB SAYS THEY WILL REPLACE THE ENGINE AS IT IS IN WARRANTY, BUT SENTIMENTALLY WE ARE SO UPSET , IF THE FIRE WOULD HAVE CAUGHT ON TO GAS TANK. PLEASE SUGGEST. VEHICLE WAS IN MOTION AND SHE WAS DRIVING AT LESS THAN 30 MILES PER HOUR WHEN SHE NOTICED BURNING SMELL AND IMMEDITELY FUMES WERE COMING FROM THE AC VENTS. PLEASE SUGGEST OUR OPTIONS IN THIS CASE
I HAVE EXPERIENCED RECURRENT BUT INTERMITTENT ISSUES WITH THE TRANSMISSION/ACCELERATION OF MY MERCEDES GLC 300 2017. TODAY, AFTER I WENT UP AND THEN DOWNHILL, THE CAR SLOWED DRAMATICALLY ON ITS OWN. WHEN I PUSHED THE GAS PEDAL TO THE FLOOR, THE CAR DID NOT RESPOND IMMEDIATELY. AFTER SEVERAL SECONDS, THE CAR STARTED TO ACCELERATE. IN THE MEANTIME, I WAS WORRIED I WOULD BE REAR-ENDED BY TRAFFIC BEHIND ME. I HAVE HAD SIMILAR PROBLEMS IN THIS SAME SPOT (WHICH I DRIVE NEARLY DAILY) IN THE PAST, SUGGESTING GOING OVER THE HILL HAS SOMETHING TO DO WITH IT (E.G., ONCE, IN THIS SPOT, WHEN MY DAUGHTER WAS IN THE CAR WITH ME, THE CAR JERKED SO STRONGLY WHEN IT STARTED TO GO THAT MY DAUGHTER THOUGH WE WERE INDEED REAR ENDED). ALTHOUGH THIS SPOT MOST OFTEN REVEALS THE PROBLEM, THE ISSUE HAS HAPPENED ON FLAT AREAS AS WELL. FOR INSTANCE, PULLING OUT OF A SHOPPING CENTER, I SIMILARLY FOUND THE ACCELERATOR NON RESPONSIVE. DRIVING MY DAUGHTER TO TENNIS ONE DAY, THE CAR REPEATEDLY JERKED DRAMATICALLY WHEN SHIFTING, PRIMARILY IN 2ND AND 3RD. GENERALLY, THE ISSUES SEEM TO HAPPEN MOST FREQUENTLY IN THESE GEARS. ALTHOUGH THE TRANSMISSION SEEMS TO CONSISTENTLY TAKE LONGER TO SHIFT IN THESE GEARS, THE MORE DRAMATIC PROBLEMS DO NOT HAPPEN DAILY, MAKING IT HARD TO TROUBLE SHOOT (WHEN I TOOK IT TO MY DEALER, THEY RAN THEIR COMPUTER TESTS, AND COULD NOT DETECT ANY PROBLEMS). I AM WORRIED, THOUGH, THAT I WILL EVENTUALLY BE REAR ENDED OR OTHERWISE HAVE THIS PROBLEM LEAD TO AN ACCIDENT. I HAVE SEEN SOME OTHER REPORTS OF THIS ISSUE IN ONLINE FORUMS, AND HOPE NHTSA CAN CHECK INTO OR AT LEAST TRACK IT.
SINCE THE LEASE PURCHASE IN 2017. THE GLC300 HAS BEEN IN SERVICE ON A QUARTERLY BASES FOR THE BRAKES (CONSTANT SQUEAKING MAKING FEEL UNSAFE) AND NOW A CONSTANT CHECK ENGINE LIGHT. THIS IS THE 4TH VEHICLE I LEASE AND BY FAR THE WORST. I CONTACTED MERCEDES USA ASKING THEM FOR A REPLACEMENT VEHICLE. I WAS WILLING TO ACCEPT A USED OR LOANER CAR BUT THE ONLY THING THEY OFFERED WAS $1000 TOWARDS MY NEXT VEHICLE. AS OF TODAY, THE VEHICLE IS BACK IN SERVICE FOR THE 7TH OR 8TH TIME. I AM HOPING SOMEONE CAN HELP OR AT LEAST PREVENT THIS FROM HAPPENING TO SOMEONE. I HAVE ATTACHED ALL PAPERWORK FOR YOUR REVIEW. THANK YOU
TL* THE CONTACT OWNS A 2017 MERCEDES BENZ GLC300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 17V114000 (ELECTRICAL SYSTEM, ENGINE AND ENGINE COOLING) HOWEVER, THE PART NEEDED FOR THE REPAIR WAS NOT AVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE CONTACT CALLED WESTMINSTER MERCEDES BENZ DEALER, LOCATED ON 10391 WESTMINSTER BLVD, WESTMINSTER, CO 80020, WHERE IT WAS INFORMED THAT THE RECALL WAS PENDING AND THE REMEDY PART WAS NOT AVAILABLE FOR THE REPAIR. THE MANUFACTURER WAS NOT MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PART NOT AVAILABLE.
THE LANE KEEPING ASSIST AND/OR LANE BRAKING ASSIST WILL VIOLENTLY MOVE THE VEHICLE UNASSISTED BY DRIVER ONTO ACCESS ROADS THE DRIVER EXPECTS THE VEHICLE TO MAINTAIN ITS POSITION OF THE HIGHWAY AND NOT TO VIOLENTLY TURN ONTO ACCESS ROADS.. IT IS PARTICULARLY UNSAFE ON 75 AND 85 MPH SPEED LIMIT HIGHWAYS. REQUIRES DRIVER TO VIOLENTLY JERK WHEELER BACK TO THE HIGHWAY BEING TRAVELED UPON. CALLS DIRECTLY TO MERCEDES INDICATE NO INTEREST IN THE PROBLEM AND SOFTWARE INVOLVED AND LOCAL DEALERS EITHER WILL NOT SET UP APPOINTMENTS FOR INSPECTION OR/AND INDICATE THEY CANNOT CORRECT THE SOFTWARE OR SENSITIVITY OF DETECTORS ON RIGHT SIDE OF CARE. THE ONLY WAY TO AVOID THIS IS ON A 4 LANE HIGH BY STAYING IN THE CENTER PASSING LANE A LANE AWAY FROM EXITS.
TL* THE CONTACT OWNS A 2017 MERCEDES-BENZ GLC300. THE CONTACT STATED THAT NHTSA CAMPAIGN NUMBER: 17V114000 (ELECTRICAL SYSTEM, ENGINE AND ENGINE COOLING) EXCEEDED A REASONABLE AMOUNT OF TIME FOR REPAIR. THE CONTACT RECEIVED THE RECALL NOTIFICATION IN MARCH OF 2017. THE DEALER AND MANUFACTURER WERE NOT CONTACTED. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.
TL* THE CONTACT OWNS A 2017 MERCEDES-BENZ GLC300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 17V114000 (ELECTRICAL SYSTEM, ENGINE AND ENGINE COOLING). THE PART TO DO THE REPAIR WAS UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. ZT MOTORS IN FORT WALTON BEACH, FLORIDA WAS CONTACTED ABOUT THE RECALL TWICE AND STATED THAT THE PARTS WERE UNAVAILABLE. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.
"TAKATA RECALL" MY 2017 MERCEDES GLC 300 SUV CAUGHT RANDOMLY ON FIRE WHILE DRIVING 65 MPH ON THE FREEWAY. I WAS ABLE TO PULL ON THE SIDE.THEN WHILE ON THE PHONE DESCRIBING THE SITUATION TO THE SERVICE GUY; I SAW THE FIRE AND SMOKE ENTERED INSIDE THE VEHICLE AND I GOT OUT AFTER A LITTLE BIT CAUSE THE CAR HAD NO POWER TO OPEN DOORS OR DO ANYTHING! I THINK THE PROBLEM WAS WITH ELECTRICITY! I WANT THE CAR NO MORE! I WILL RETURN IT BACK!
TL* THE CONTACT OWNS A 2017 MERCEDES-BENZ GLC300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 17V114000 (ELECTRICAL SYSTEM, ENGINE AND ENGINE COOLING). THE MANUFACTURER WAS UNABLE TO PROVIDE A SPECIFIC TIME FRAME FOR THE PARTS TO ARRIVE FOR THE RECALL REPAIR. THE DEALER WAS NOT CONTACTED THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE. UPDATED 08/23/17*LJ *CN
WE WERE DRIVING DOWN THE FREEWAY, TRAVELING APPROXIMATELY 65 MPH IN OAKLAND, CA. THE WEATHER WAS CLEAR - NO RAIN AND APPROXIMATELY 60 DEGREES. ALL OF A SUDDEN, THERE WAS A LOUD NOISE LIKE A GUNSHOT AND OUR PANARAMIC SUNROOF SHATTERED. AT THE TIME, WE HAD A CARGO BOX ON TOP OF THE CAR (ON A FRAME THAT WAS NOT TOUCHING THE SUNROOF) SO IT IS UNLIKELY ANY PROJECTILE COULD HAVE HIT THE CAR. THE CARGO BOX WAS STILL AFFIXED TO THE CAR AND SECURE AFTER THE INCIDENT. IT WAS NOT AN EXTREME TEMPERATURE, NOR WAS THERE ANY EXTREME WEATHER (RAIN, SNOW, HAIL) AT THE TIME. THERE WERE NO UNDERPASSES NEARBY. MOST OF THE GLASS WAS CAUGHT BY THE SUNSHADE, BUT IF WE HAD THE SUNSHADE OPEN, THE GLASS WOULD HAVE ENTERED THE PASSENGER COMPARTMENT. WE HAVE OWNED THE CAR APPROXIMATELY TWO WEEKS AT THIS TIME.
I WAS DRIVING STRAIGHT TOWARD HIGHWAY 287 AT 65M SPEED, THERE WAS NO SNOW NO RAIN NORMAL TRAFFIC NO CARS CLOSE TO ME, ALL THE SUDDEN ESP INDICATOR WENT OFF, ACCIDENT COLLISION PREVENTION INDICATOR WENT OFF ON MY DASHBOARD AND THE VEHICLE SPEED WENT DOWN TO 30M, 20M AND I WAS NOT ABLE TO BRING THE SPEED BACK, THE VEHICLE STOPPED RESPONDING. I PULLED OVER CALLED ROAD ASSISTANCE, I TURNED THE ENGINE OFF, START AGAIN I WAS ABLE TO DRIVE AT 20 - 30MILE, WHEN I ENTERED HIGHWAY 46 ON THE TRAFFIC LIGHT THE VEHICLE WAS NOT RESPONDING AT ALL, I KEPT PRESSING THE GAS PEDAL, UNTIL THE CAR START TO DRIVE AGAIN UP TO 25M. TOOK IT TO THE DEALERSHIP WORKSHOP, THEY WAS FAULTS IN THE SENSOR AND GAS PEDAL THEY FIXED.. I TOOK THE VEHICLE AFTER ONE WEEK CHECK ENGINE INDICATOR WENT OFF AGAIN. TOOK IT AGAIN TO THE DEALERSHIP WORKSHOP. I CONSIDER WHAT HAPPENED WITH THIS VEHICLE IS REAL SAFETY ISSUE WHERE ALL THE SUDDEN YOU CAN'T CONTROL THE SPEED ANYTIME ANYWHERE.
I PURCHASED A MERCEDES GLC 300 2017 IN SEPTEMBER IN DELRAY BEACH AND WHEN I APPROACHED 3500 BREAKS STARTED TO SQUEAL. I TOOK THE CAR IN AND THEY SAID THEY WOULD ORDER NEW BREAKS. THIS WAS 2 MONTHS AGO AND NOTHING HAS HAPPENED YET NO FIXES AND THEY WEREN'T EVEN AWARE THAT MANY CONSUMERS HAD COMPLAINED PREVIOUSLY. THEY KEEP GIVING ME THE RUN AROUND THAT THE PARTS ARE COMING FROM GERMANY ETC. I BET YOU IF THEY WERE TRYING TO SELL A CAR THEY WOULD HAVE BROUGHT THAT CAR FASTER THAN MY BREAKS. CAR IS STILL SQUEALING AND WAITING FOR A FIX. MERCEDES SLOGAN IS THE BEST OR NOTHING ELSE ?! WELL..... DEFINITELY NOT THE BEST EXPIRIENCE.
VEHICLE HAD FRONTAL IMPACT WITH OTHER CAR ON LOCAL ROAD. THE VEHICLE AIRBAGS ON PASSENGER SIDE INFLATED AND DEFLATED COMPLETELY DIFFERENT COMPARED TO THE DRIVER SIDE AIRBAG. WE BELIEVE MB GLC PASSENGER SIDE AIRBAG HAS FACTORY DEFECT IN OUR CAR. PLEASE SEE ATTACHED PHOTO ON PAGE 2.
REFER TO 2016 GLC-300 COMPLAINTS ABOUT SCREECHING SERVICE BRAKES AND COPY/PASTE COMPLAINTS HERE. 2017 MODEL HAS THE SAME SCREECHING NOISES AND CAR WAS PURCHASED IN AUGUST 2016. GOING SLOWLY IN REVERSE OR FORWARD FROM COLD START WILL CAUSE LOUD SCREECHING NOISES. MY NEIGHBORS HAVE CONFRONTED ME ABOUT THE CAR NOISES. IT'S ABSURD THAT THE DOCUMENTED ISSUES FROM THE 2016 MODEL CONTINUES IN THE 2017 MODEL. DEALERS ARE AWARE AND HAVE SAID APPLYING BRAKE PASTE DOES NOT HELP. A LARGER FIX IS STILL IN THE WORKS. THE NOISE IS ALSO MAKING US ATTEMPT TO BACK OUT OF THE DRIVEWAY WITH AS LITTLE BRAKING AS POSSIBLE. AFTER DRIVING A FEW MILES THE SCREECHING WILL MOSTLY STOP. THERE HAVE BEEN OTHER OCCASIONS WHEN IT HAS NOT--LIKELY DUE TO WET OR COLD WEATHER CONDITIONS. AS OF 12/29/2016, DEALER IS SAYING A NEW FIX MAY BE COMING 1/5/2017. I AM HOPEFUL BUT WEARY AND WILL PROCEED WITH LEMON LAW PROTOCOLS. *TR