2017 Mercedes-Benz GLC problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
13 owner complaints analyzed
0 distinct recall campaigns
2,800 mi median reported failure mileage
Scope: 2017 model year. Data snapshot: . 9 complaints include usable failure mileage.
Most common problems
Air Bags is the most frequently named component, appearing in 3 of 13 complaints (23.1%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 2 | 15.4% |
| Fuel system concerns | 2 | 15.4% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Air Bags | 3 |
| Engine | 3 |
| Fuel/Propulsion System | 2 |
| Service Brakes | 2 |
| Structure:Body | 2 |
| Electrical System | 1 |
| Electronic Stability Control (Esc) | 1 |
| Power Train | 1 |
Air Bags: 3; Engine: 3; Fuel/Propulsion System: 2; Service Brakes: 2; Structure:Body: 2; Electrical System: 1; Electronic Stability Control (Esc): 1; Power Train: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 5 |
| 25,000 to 49,999 | 1 |
| 50,000 to 74,999 | 2 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 1 |
| 150,000 and above | 0 |
Under 25,000: 5; 25,000 to 49,999: 1; 50,000 to 74,999: 2; 75,000 to 99,999: 0; 100,000 to 149,999: 1; 150,000 and above: 0
Under 25,000 miles has the most reports with usable mileage (5). 4 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2016 | 1 |
| 2017 | 4 |
| 2019 | 1 |
| 2020 | 5 |
| 2021 | 1 |
| 2025 | 1 |
2016: 1; 2017: 4; 2019: 1; 2020: 5; 2021: 1; 2025: 1
Pattern summary
Air Bags leads the component reports. Braking behavior appears in 2 complaint narratives. Fuel system concerns appears in 2 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 10938545 · 2016-12-29 (December 29, 2016)
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 T…
Owner-reported narrative. Look up ODI 10938545 at NHTSA ↗
Owner report 11170903 · 2019-01-19 (January 19, 2019)
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 HAPPE…
Owner-reported narrative. Look up ODI 11170903 at NHTSA ↗
Owner report 11298138 · 2020-01-09 (January 9, 2020)
FEED LINE TO HIGH PRESSURE FUEL PUMP LEAKING TO ENGINE COMPARTMENT CAUSING ODOR WHEN STARTING IN COLD WEATHER (VEHICLE STATIONARY). HAS BEEN HAPPENING FOR A LONG TIME BUT SIMPLY DID NOT CONNECT THE DOTS.
Owner-reported narrative. 63,000 miles reported. Look up ODI 11298138 at NHTSA ↗
Owner report 11377402 · 2020-12-01 (December 1, 2020)
FUEL LINE LEAK: THE TEMPERATURE IN S. FLORIDA HIT A LOW OF 45 DEGREES TONIGHT ON 1 DEC 2020, FIRST NOTING THE ISSUE DESCRIBED. UPON RETURN HOME FROM AN 8 MILE TOTAL TRIP TO THE STORE, MY DAUGHTERS EXITED THE VEHICLE AND NOTED A STRONG GASOLINE ODOR. UPON INVESTIGATION MYSELF, I FOUND GASOLINE POOLING BEHIND THE ENGINE WHERE THE MAIN FUEL LINE CONNECTS TO A RUBBER HOSE. THE POOLING WAS ON THE REAR OF THE UNDERCARRIAGE COVER AS ALSO DESCRIBED BELOW. SIMILAR CASE FOUND ONLINE: HTTPS://WWW.BENZWORLD.ORG/THREADS/GASOLINE-LEAK.2936569/ "THERE …
Owner-reported narrative. 8 miles reported. Look up ODI 11377402 at NHTSA ↗