2017 Mercedes-Benz Glc300: Reliability Data

Source: NHTSA — 134 complaints
134
Total Complaints
26,000mi
Median Mileage
ENGINE
Top Issue
6
Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

7,000 25th Percentile
26,000 Median Mileage
75,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

ENGINE
37
ELECTRICAL SYSTEM
15
FUEL/PROPULSION SYSTEM
13
UNKNOWN OR OTHER
11
AIR BAGS
8
SEAT BELTS
7
POWER TRAIN
7
STEERING
4
SERVICE BRAKES
4
VISIBILITY:SUN/MOON ROOF ASSEMBLY
3

Severity Assessment

6
Crashes
3
Fires
3
Injuries
0
Deaths

Sample Complaint Reports

"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 COMPLAINE..."
"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 SECON..."
"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 SECON..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

When Were Complaints Filed?

Number of complaints by the year the issue occurred.

When Does Each Component Fail?

Median mileage at complaint for top components.

ENGINE 37 complaints
25th: 9,000 mi Median: 60,000 mi 75th: 88,000 mi
ELECTRICAL SYSTEM 15 complaints
Median: 9,000 mi
FUEL/PROPULSION SYSTEM 13 complaints
Median: 46,000 mi
AIR BAGS 8 complaints
25th: 5,253 mi Median: 16,000 mi 75th: 51,250 mi

Where Are Complaints Coming From?

Top states by complaint count.

CA: 22 TX: 15 VA: 14 NY: 13 FL: 12 CT: 7 AR: 6 PA: 5 AL: 5 NJ: 5

Mercedes-Benz Glc300 — Other Years

See how this model compares across different model years.

YearComplaintsCrashes
201616814

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28