2017 Mercedes-Benz GLC300
Problems, Recalls & Reliability Report
Quick Summary
The 2017 Mercedes-Benz GLC300 has 135 owner complaints filed with NHTSA — that's 1.7x the segment average of 80. The most common issue is engine problems (28% of all complaints), specifically: 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 warra. ⚠️ 3 fire reports filed.
135
Total Complaints
0
Recalls Issued
—/5
Safety Stars
1.7x
vs Segment Avg
Known Problems
ENGINE
38 complaints- • 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 WARRA
- • 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 CONTA
- • 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 N
“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 WARRA”
— NHTSA complaint filing
ELECTRICAL
15 complaints- • 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 WARRA
- • 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 CONTA
- • 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 N
“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 WARRA”
— NHTSA complaint filing
FUEL SYSTEM
15 complaints- • 1. CRANKCASE VENTILATION VALVE PERFORMANCE FAILED CHECK ENGINE LIGHT IS ON WHILE DRIVING 2. SMELLS GAS FROM UNDER THE HOOD. HEARD IT'S COMMON PROBLEMS
- • SMELLS LIKE GAS COMING THROUGH THE VENTS INTO THE CABIN OF THE VEHICLE AND CAUSES HEADACHES
- • WHILE DRIVING, THE MALFUNCTION INDICATOR LAMP (MIL/CHECK ENGINE LIGHT) CAME ON. AFTER SOME DIGGING THIS WAS CAUSED BY AN OBD II CODE OF P052E, WHICH INDICATES A BLOCKED CRANKCASE VENT VALVE ACTUATOR. THIS APPEARS TO BE A MANUFACTURING DEFECT IN THESE VEHICLES.
“1. CRANKCASE VENTILATION VALVE PERFORMANCE FAILED CHECK ENGINE LIGHT IS ON WHILE DRIVING 2. SMELLS GAS FROM UNDER THE HOOD. HEARD IT'S COMMON PROBLEMS”
— NHTSA complaint filing
OTHER
12 complaints- • WHILE DRIVING ON THE I-5 INTO DOWNTOWN SAN DIEGO WE HEARD A LOUD BAM, A MOMENT LATER HEARD CRACKING THEN SHATTERED GLASS FROM MY SUNROOF FELL INTO THE CAR. THERE WAS NO ONE DIRECTLY AROUND US.
- • VEHICLE KEY-LESS ENTRY LOCKED OUT THE DRIVER AND PASSENGER WITH KEYS INSIDE THE VEHICLE WHILE PARKED. TALKED TO OTHER MERCEDES GLC300 OWNERS AND THEY ARE EXPERIENCING SAME ISSUE. THIS HAPPENED LATE AT NIGHT WITH MY WIFE AND 7 YEAR OLD DAUGHTER IN A HIGH CRIME AREA WHILE I WAS OUT OF TOWN. MERCEDE
- • WHILE DRIVING ON THE I-75 NORTH, THE SUNROOF EXPLODED AS INDICATED IN THE PICTURE ATTACHED. IT IS STILL UNCLEAR IF THE SUNROOF SHATTERING WAS FROM A STRAY ROCK ON THE HIGHWAY, OR IF THE SUNROOF EXPLODED ON ITS OWN, HOWEVER MY CONCERN IS HOW THE SUNROOF SHATTERED AND THE QUALITY OF THE MATERIAL/GLAS
“WHILE DRIVING ON THE I-5 INTO DOWNTOWN SAN DIEGO WE HEARD A LOUD BAM, A MOMENT LATER HEARD CRACKING THEN SHATTERED GLASS FROM MY SUNROOF FELL INTO THE CAR. THERE WAS NO ONE DIRECTLY AROUND US.”
— NHTSA complaint filing
AIR BAGS
10 complaints- • TL* TAKATA RECALL. THE CONTACT OWNS A 2017 MERCEDES-BENZ GLC300. THE CONTACT STATED THAT NHTSA CAMPAIGN NUMBER: 17V627000 (AIR BAGS) EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE REPAIR. THE CONTACT RECEIVED THE RECALL NOTIFICATION IN OCTOBER OF 2017. THE DEALER (EURO MOTORCARS BETHESDA, 7020 ARLINGT
- • TL* TAKATA RECALL. THE CONTACT OWNS A 2017 MERCEDES-BENZ GLC300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 17V627000 (AIR BAGS). THE PARTS TO DO THE REPAIR WERE UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE DEA
- • REAR BRAKING SYSTEM. WHEN BACKING UP OR APPLYING PRESSURE TO THE BRAKES, THE VEHICLE IS SCREAMING A LOUD NOISE. TAKEN BY DEALERSHIP AT 7000 MILES 01/04/18 DEALERSHIP STATES THEY CAN'T FIX IT UNTIL THEY RECEIVE PARTS ,WITH THE TAKATA RECALL AND A FAULTY BRAKING SYSTEM, THIS IS A HIGHWAY SAFETY ISS
“TL* TAKATA RECALL. THE CONTACT OWNS A 2017 MERCEDES-BENZ GLC300. THE CONTACT STATED THAT NHTSA CAMPAIGN NUMBER: 17V627000 (AIR BAGS) EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE REPAIR. THE CONTACT RECEIVED THE RECALL NOTIFICATION IN OCTOBER OF 2017. THE DEALER (EURO MOTORCARS BETHESDA, 7020 ARLINGT”
— NHTSA complaint filing
Estimated Repair Costs
Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.
🔍 Pre-Purchase Inspection Checklist
Based on 135 owner complaints for this specific year, here's what to check or ask about:
- ☐ENGINE: 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 WARRA
Typically appears around 50K miles. Repair cost ~$500
- ☐ELECTRICAL: 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 WARRA
Typically appears around 50K miles. Repair cost ~$500
- ☐FUEL SYSTEM: 1. CRANKCASE VENTILATION VALVE PERFORMANCE FAILED CHECK ENGINE LIGHT IS ON WHILE DRIVING 2. SMELLS GAS FROM UNDER THE HOOD. HEARD IT'S COMMON PROBLEMS
Typically appears around 50K miles. Repair cost ~$500
- ☐OTHER: WHILE DRIVING ON THE I-5 INTO DOWNTOWN SAN DIEGO WE HEARD A LOUD BAM, A MOMENT LATER HEARD CRACKING THEN SHATTERED GLASS FROM MY SUNROOF FELL INTO THE CAR. THERE WAS NO ONE DIRECTLY AROUND US.
Typically appears around 50K miles. Repair cost ~$500
- ☐General: Get a pre-purchase inspection from an independent mechanic ($100-$200)
Mercedes-Benz GLC300 — Year Comparison
How does 2017 compare to other years? Fewer complaints = more reliable.
Full years-to-avoid analysis →NHTSA Safety Rating
No NHTSA safety rating available
At a Glance
- Complaints
- 135
- Recalls
- 0
- Fire reports
- 3
- Crash reports
- 2
- Injury reports
- 1
- Segment avg
- 80
Check a Specific VIN
See recalls for YOUR 2017 Mercedes-Benz GLC300