2016 Mercedes-Benz GLC-Class owner complaints

The brakes have a loud piercing screech when brakes are applied. It started out as an occasional noise and now it is constant. I have contacted mb customer service as well as the dealership where I purchased my vehicle. All admit that mb is aware of the issue but have no fix or solution. It is well documented with several complaints on all of mb social media sites. I am being told this is not a safety issue and the vehicle is " safe " to drive but this is unacceptable and I am afraid to drive my vehicle now especially traveling on the freeway because my brakes scream whenever they are applied.

Screeching brakes when car is put in reverse. Typically occurs in cold weather. Mercedes said they are aware of the issue but no fix is available. Mercedes says occurs when vehicle has approximately 20k miles on them.

Brakes and brake rotors screech excessively when moving from park, forward or backwards and while braking at stop lights and stop signs. Reported to dealer and Mercedes - no action. Concerned that brakes may fail at a critical time or that rotors will be damaged beyond repair and cause failure. *tr

Brakes have gone from squeaking to deafening squeal and do not seem to stop as quickly. Very spongy. Dealer says they wont have replacement parts for months. Concerned we shouldnt be driving the car and dont trust the dealer to be truthful

I purchased a brand new 2016 Mercedes benz glc300 in december of 2015. Over the past 6 months, the vehicle has begun making a terrible screeching noise when I lightly press the brakes while in reverse. The noise has gotten so loud and painful to the ear that I reflexively take my foot of the brakes causing me to roll backwards faster than necessary. I recently took the vehicle in for its 10,000 mile service during which I indicated that the car was making a "screeching" noise while in reverse with the brakes applied lightly ("feathering"). I was told by the service technician that Mercedes was aware of the issue and will issue guidance soon. I was given my vehicle back with no temporary solution whatsoever. Since owning the vehicle (about a year with 10,000 miles), I have received

Brakes started to squeal when backing up at slow speeds. This progressively got worse over a couple of months, until it is now extremely loud. It seems to be worse when it is cold. 3 Mercedes-benz dealers have all said it is a known issue and to standby for a permanent fix. Started at about 5,000 miles on car, now have about 6500.

Tl* the contact owns a 2016 Mercedes-benz glc 300. While driving and depressing the brake pedal, the contact heard a squealing noise coming from the brakes. The vehicle was taken to the dealer, but was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was 6,000.

Panoramic sunroof shattered and exploded without warning, without any external impact seen, felt or heard. Vehicle was moving on rural highway (flat farmland) around 55-60 MPH. External temperature above 100 degrees. Highway traffic normal, not dense or empty. Odometer at 12,000 miles. Hazard due to defective/ insufficiently strong sunroof glass.

I own a 2016 Mercedes Benz GLC 300 and I’ve noticed that a strong gas smell when I start the car during cold weather. You notice the smell outside and inside the cabin as well as it comes in through the vents.

On cold start (7am, between 60 and 70f degrees), there's a strong gas smell on both the cabin and outside the vehicle. No check engine light is on or any other indicator of a failure. There's no visible leaks on the underhood or my driveway. Really scared to take my kids to school unless mb solve this problem. Vehicle still under warranty, mb dealership shouldn't charge for the inspection. Taking vehicle to el paso tx dealership. Will see what happens.

Takata recall my wife is afraid to drive the car after hearing about the recall. Local Mercedes dealer is not able to do anything at this time. We are frustrated because we chose to purchase this car mainly because of its safety record. We want a new car or have this issue fixed right away!!! We don't want to drive the car knowing the airbag could deploy at anytime and cause serious injury or death

I purchased this Mercedes new in 2016, the brakes have squealed ever since when cold 32 degrees or less.. Once in awhile when warm. 2 we smelled gasoline, we took it to a repair shop, they found two fuel hoses sprayed gas in a mist especially when cold.. 3 there are 3 recalls open on this Mercedes, I took it in when the air bag recall arrived at our house, I was told we don't have parts. Our car is out of warranty, it has 56000 miles. I take it to a repair shop run by certified Mercedes technicians. Thank god we didn't have a fire with the gas leak. I did smell the gas when moving thru the ventilation system and when sitting and the smell was all around the car.

Tl* the contact owns a 2016 Mercedes-benz glc300. The contact received notification of NHTSA campaign number: 17v627000 (air bags); however, the part for the recall repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The contact called keyes european (5400 van nuys blvd, van nuys, ca 91401; 818-461-3910) and was informed that the remedy was not available. The manufacturer was not made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

Check Engine light P052E came on while driving. No collision, normal conditions other than first very cold night of the season. Looked it up and seems to be a common issue with this model.

Got the MIL obd2 error code P052E - Positive Crankcase Ventilation Regulator Valve Performance. After some research this seems to be a common issue for this vehicle and other similar Mercedes Benz vehicles with the same engine. It is something that it is extremely expensive to fix (2000) and very labor intensive. I believe that Mercedes Benz should recall these vehicles and replace the Intake line due to its constant failure on many vehicles including mine.

P052e positive crankcase ventilation regularly valve

Tl* the contact owns a 2016 Mercedes-benz glc300. While driving approximately 55 MPH, the sun roof suddenly exploded without warning. There were no injuries. The vehicle was taken to Mercedes-benz of clear lake (500 golf freeway s, league city, tx)but the cause of the failure could not be determined. The vehicle was repaired. The manufacturer was notified, but no assistance was offered. The failure mileage was 50,000. The VIN was unknown.

I got my brand new Mercedes benz glc 300 two weeks ago. After driving for 6 days & less than 300 miles in total the SUV stopped responding abruptly in the middle of highway cruising at a speed of 70 MPH with a transmission malfunction error flashing. With no power in the car, I was lucky enough to pull it from the left most lane to the right curb but it was extremely scary to experience the situation of an irresponsive car in the middle of highway while the car is moving. All the lights on the dial were lit up with a transmission malfunction error in red. Tried to shut off the car using the on/off push button but it did not respond. After opening & closing the driver side door, tried to shut down the car again & the engine revved up. It was surprising as things were acting opposite.

The seatbelt latch for the rear seats retract into the body of the car and then can't be used. This happened twice now and each time a rear seat occupant had to ride without a seatbelt . The latch later had to be retrieved with a hooked wire and needle nose pliers. Other vehicles have a button in the belt to prevent it from retracting or the opening in the car body is too small to allow the latch from retracting in.