Mercedes-Benz GLC-Class Complaints

782 consumer complaints on file.

#11491514October 30, 2022
ENGINE
My car has P052E code with a message of Positive Crankcase Ventilation Regulator Valve Performance. My car mileage is only 13,700 as of today. I think this is a cause of a deflective part and this should be a recall item. FYI, Wen I contact a Mercedes dealership and they asked me a cost of $2,500 to fix this issue. Thank you,
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11491174October 27, 2022
BACK OVER PREVENTION, ELECTRICAL SYSTEM
The contact owns a 2020 Mercedes-Benz GLC300. The contact received notification of NHTSA Campaign Number: 21V354000 (Back Over Prevention, Electrical System) however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11490420October 22, 2022
STEERING, UNKNOWN OR OTHER
Driving down the expressway at 4 AM when the car had a message and read saying do not change gears alert. I hardly got over to the emergency lane when all systems did not work. The axle , differential and oil pan broke. Had to be towed after waiting 2 1/2 hours for a tow.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11490203October 20, 2022
ENGINE, ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
The contact owns a 2017 Mercedes-Benz GLC300. The contact stated that while driving approximately 55 MPH, she detected white smoke coming from the tailpipes. There were no warning lights illuminated. The contact was able to pull over. The vehicle was towed to the local dealer who placed a camera inside the engine and noticed that the piston had fractured and detached inside the engine. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was contacted but no additional assistance was provided. The approximate failure mileage was 88,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11489192October 13, 2022
ENGINE
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 (+$1500) 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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11488464October 8, 2022
FUEL/PROPULSION SYSTEM
Defective crackcase vent valve
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11488329October 7, 2022
ENGINE, ELECTRICAL SYSTEM
The car wouldn't start. Battery is good. It had multiple codes and code for software update.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11488436October 7, 2022
ENGINE
During normal highway driving, the check engine light energized in the display. At the same time, engine power was lost, and the vehicle could no longer accelerate. The Mercedes Benz dealership was less than a mile away, so I went directly there at a slow speed without damaging the engine. Upon inspection, the dealership found that the engine wiring harness was completely engine oil soaked and the oil drained down into the engine control unit (computer), causing loss of one of two turbochargers and loss of engine control and power. It is suspected that the oil originated from one or multiple of the camshaft sensors that are connected to the engine wiring harness. The engine oil traveled through the wiring harness and then completely soaked to engine control unit, which malfunctioned. If this happened while overtaking another vehicle or trying to avoid another, then I would have had a serious accident. I had insufficient engine power to avoid other cars and luckily was in the far-right lane to be able to exit the highway without an accident or damaging my engine due to the higher-than-normal rpms. The vehicle is currently at the dealership and requires a new engine wiring harness which may require removal of the engine to access and replace, a new engine control unit due to being engine oil soaked, and possibly a new turbocharger. This repair could cost well over $10,000 for parts and labor. The vehicle just had its annual maintenance service in September and no oil leak from the engine wiring harness was noted by technicians during the maintenance. The dealership continues to search and localize exactly where the oil originated but believes that either one or multiple camshaft sensors is the cause. The dealership does not know how long it will take to repair the vehicle due to the parts needed and the extent of labor that is required.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11487421October 1, 2022
FUEL/PROPULSION SYSTEM
Driving slowly through a parking lot and had to stop for pedestrians. When the path was clear, the car would not accelerate. It only idled forward and slowly reached about 5 mph. Stepping on the accelerator pedal gave no response after repeatedly trying to accelerate. No warning lights came on to alert me of a problem. I was able to pull into a parking spot and after shutting off the ignition and turning back on, the throttle responded as normal. This was a very scary situation but at least it happened in a parking lot.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11487340September 30, 2022
SEAT BELTS
While driving vehicle, the seat belt pretensioner is activated and the seat belt light and alarm is activated. This cycle occurs throughout the drive, regardless of speed. Seems as though the seat belt latch does not sense that the seat belt is activated. This is very distracting to the driver. We reported the issue to the dealership, but have not heard anything since the report. This problem occurs on and off, randomly. May occur for a week straight, then stop for a day or two, then start again.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11486871September 28, 2022
ENGINE, POWER TRAIN
Piston 1 cracked while driving on the highway. My sibling was driving on the highway when the engine suddenly started misfiring and losing power because it lost compression on the piston that cracked. I was lucky enough that I have mechanic experience to replace all the damaged components myself and paid out of pocket. I was super fortunate that the cylinder walls did not get damaged when this happened thus not needing an entire engine replacement which would cost around $10,000 from mercedes. I had to go pick up a trailer from UHaul and go pick up the vehicle from where it broke down. Thinking about this from the perspective of a person who does not have access to rent a trailer, a vehicle to pull said trailer with, or the mechanic experience to fix the vehicle themselves, the cost to get this issue resolved would be much much more than it cost me.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11486997September 28, 2022
ENGINE
engine light caused by Crankcase pressure sensor
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11486730September 27, 2022
ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM
My car was bought new in October 2021 & I began having problems after having it for 6 months & the mileage at that time was about 4000 miles - it was in April 2022 & the check engine light came on & I had a loss of power to where it slowed down & would not go any faster than about 30/35 miles an hour going on a straight road way & no faster than about 10 miles an hour going uphill. The engine sounded funny as well. It had to be towed to the dealership for repair. This incident happened again a month later & it was towed to the dealership at that time. The next incident just happened this month (mileage=6620) & again it was towed to the dealership for repair. Same scenarios all 3 times. This last incident, I was told that it is glitch & they don't really know what is causing my car to basically go into "limp mode"; however, they are awaiting a software update that they expect will resolve the problem, but they are not sure when it will be available for installation & did not give me a timeline. In the meantime, I was given back my car as I was the 2 other times without a resolution or security that my car is doing to make it to & from my destination. The car is still under warranty & just under a year old now. I was told by the dealership that they have no other customers complaining of this problem & they feel it is very isolated. I asked them to reach out to their corporate office in hopes of making a deal with me as I have lost all confidence in the car, but they reported having no luck in reaching anyone to discuss my problem. The 3 incidents where the car had to be towed were very scary for me as other cars were blowing their horns at me because I could not accelerate & go any faster & when I was going up a hill - it was really bad. I was very lucky that all 3 times happened not far from my home & not on the interstate as the outcome could have been very bad for me in regards to my safety.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11486199September 24, 2022
SEAT BELTS, AIR BAGS
Driver's seatbelt is latched and it shows as unlatched with tge seatbelt sensor going off. On the dashboard it also shows the airbag icon
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11486081September 23, 2022
STRUCTURE:BODY:HATCHBACK/LIFTGATE
The contact owns a 2018 Mercedes-Benz GLC300. The contact stated while stopped in a parking lot, she raised the automatic liftgate, as she helped her husband load his walker into the rear cargo area of the vehicle, and the tailgate independently closed with force. The contact stated that both her husband and herself were struck on the top of the head by the liftgate. The contact stated that there was a pain but no physical injury was sustained. The contact stated that the failure had become constant and she no longer operated the liftgate. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that the liftgate motor needed to be replaced. The vehicle had not been repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 35,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11485136September 19, 2022
ELECTRICAL SYSTEM
The command system keeps turning off and rebooting while driving. Sometime it makes the rear camera don’t work(blackout), auto on/off does not work, it happens about every two minutes making it dangerous.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11485054September 18, 2022
UNKNOWN OR OTHER
The HVAC system has a very had odor that could impact our respiratory health, and giving us headaches when we drive. I wanted to share with you my current situation that I believe relates to the Mercedes HVAC Class Action Settlement (https://www.mercedeshvacsettlement.com/). My 2021 GLC300 Mercedes is experiencing exact same issues as described in the Mercedes HVAC Class Action Settlement even though the settlement only covers vehicle models up to 2019. I have been a loyal Mercedes customer for over 20 years and took in the vehicle 4 times to address the bad HVAC odor that occurs 3 to 4 times a day when I turn on the HVAC. It has a moldy, mildew-y, or similar odor emanating from the vehicle’s HVAC system. The dealership admitted they did smell the odor but there is nothing they can do to address it after they changed the air filters and cleaned the evaporator coil. I then escalated to MBUSA Escalation team to request a full refund or replacement based on the Arizona Lemon Law statute and they were of no assistance and completely denied my request stating that the vehicle is working as intended. I even went to a Lemon Law attorney and provided them all the 4 service documentation records showing that I took the vehicle in 4 times and evidence from dealership admitting that there is an odor from the HVAC for the same issue with no root cause or resolution to address the odor from the HVAC. The attorney passed on taking my case, which I believe is a good solid case. Do you have any further ideas on what I can do start a class action lawsuit against Mercedes or investigate extending Mercedes HVAC Class Action Case 1:17-cv-01701-AT to include vehicle models beyond year, 2019? Based on my observation this is still happening in Mercedes vehicle models 2020 and newer.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11484863September 16, 2022
FUEL/PROPULSION SYSTEM
The vehicle needs a new PCV Valve / hose, as well as a new turbo charger
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11483487September 8, 2022
ENGINE
Catastrophic engine failure at 63,000 miles. Mechanic says its a known issue with this particular make and model of that year. Dealer says I need to replace the engine.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11483340September 7, 2022
TIRES
On September 7, 2021, I had purchased four new Pirelli Scorpion Verde AS 235/55 R19 SL tires for my 2016 Mercedes-Benz GLC 300, from Discount Tires with warranties on each tire. On September 2, 2022, I taken my vehicle for a routine maintenance at my local Mercedes- Benz dealership and for my annual inspection. I was informed by the dealership that my two back tires were almost bald. In disbelief I inform the tech that I will be taking my vehicle back to Discount Tire since I had just purchased tires less than a year age. On September 6, 2022, I scheduled with Discount Tire and explained with my receipt that I had just purchased these tire less than a year ago. Once a representative from Discount Tire inspected my tires they agreed with the dealership that the two back tires were bad, and I haven't driven over ten thousand miles. So I had inquired about the factory warranty and was informed that there was no mileage for these tires, and they would only give me sixteen percent off for the purchase of new tires. Why would a company like Pirelli sell racing tires to companies which provide consumers that drive daily a race tire. This is certainly deceptive sales practices by both Pirelli and Discount Tire, not fully disclosing this information to the consumer. If an inspection wasn't warranted for the state I reside in I wouldn't of known. This matter needs to be addressed to the Pirelli Company, due consumer safety.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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