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Mercedes-Benz

2017 Mercedes-Benz GLC300

Problems, Recalls & Reliability Report

Average

Quick Summary

The 2017 Mercedes-Benz GLC300 has 135 owner complaints filed with NHTSA — that's 0.8x the segment average of 169. 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. There are 12 recalls issued for this model year. ⚠️ 3 fire reports filed.

3 fire reports 2 crash reports 1 injury

135

Total Complaints

12

Recalls Issued

—/5

Safety Stars

0.8x

vs Segment Avg

Known Problems(top 5 of 8)

ENGINE

38 complaints
28%
  • • 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
Typical onset: 50K miles Est. repair: $500🔥 2 fire reports💥 1 crashes

“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

When Problems Appear on the 2017 Mercedes-Benz GLC300

Based on 54 owner complaints that included an odometer reading. Median mileage at time of complaint: 26K miles. Most complaints cluster in the 0-30K miles range.

Overall complaint distribution by mileage
0-30K
28
30-60K
5
60-100K
17
100-150K
4
150-200K
0
200K+
0

AIR BAGS

In line with typicalmedian 43K mi · 6 reports
0-30K
3
30-60K
0
60-100K
1
100-150K
2
150-200K
0
200K+
0

SEATS/RESTRAINTS

In line with typicalmedian 33K mi · 5 reports
0-30K
2
30-60K
1
60-100K
1
100-150K
1
150-200K
0
200K+
0

FUEL SYSTEM

Later than typicalmedian 55K mi · 5 reports
0-30K
0
30-60K
3
60-100K
2
100-150K
0
150-200K
0
200K+
0

ENGINE

High-mileage issuemedian 68K mi · 10 reports
0-30K
4
30-60K
0
60-100K
6
100-150K
0
150-200K
0
200K+
0

VISIBILITY

High-mileage issuemedian 68K mi · 7 reports
0-30K
2
30-60K
1
60-100K
4
100-150K
0
150-200K
0
200K+
0

Mileage figures are self-reported by owners in NHTSA complaint filings. Peak bucket = the mileage range with the most complaints for that component; it reflects when owners noticed and reported problems, not necessarily when the fault first occurred.

Recalls (12)

STRUCTURE:BODY:ROOF AND PILLARS01/10/2018

Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2016-2018 Mercedes-Benz GLC300 and GLC300 4Matic, 2018 GLC350e and GLC63 AMG 4Matic and 2017-2018 GLC43 AMG 4Matic vehicles. The seat belt latch plates (the parts that insert into the buckles) for the outboard rear seats may retract into the interior paneling, preventing the occupants from being able to use the seat belts.

Risk: If the rear seat passengers cannot fasten their seat belts, they have an increased risk of injury in the event of a crash.

Fix: MBUSA will notify owners, and dealers will install felt strips between the C-pillar and rear side paneling, free of charge. The recall began November 2, 2018. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2018100002.

Fuel Cost Calculator for 2017 Mercedes-Benz GLC300

Live EIA prices
Per year
$2,001
Per month
$167
Per mile
16.7¢
MPG
24
City driving (worst-case MPG)
$2,182/yr
Highway driving (best-case MPG)
$1,715/yr

Based on EPA fuel-economy ratings and EIA weekly retail prices (2026-07-20). Real-world cost varies with driving style, trim/engine, terrain, and traffic.

5-Year Gas Price History

EIA weekly retail data · 2021 → today
Current
$4.00
5-year low
$2.78
5-year high
$5.01
Since 2021
+27%

Source: US Energy Information Administration weekly retail gasoline prices.

Estimated Insurance Cost for 2017 Mercedes-Benz GLC300

Estimate only, not a quote. Modeled from NAIC + HLDI averages for a hypothetical 35-year-old driver with clean record + full coverage. Your actual quote depends heavily on your age, driving history, credit, ZIP code, and insurer.
Full coverage / year
$2,260
Full coverage / month
$188
Liability only / year
$732
vs US avg
+35%
How this estimate is calculated
US base full-coverage premium$1674
× state (US)1.00x
× vehicle class (suv-luxury)1.35x
× theft risk1.00x
× safety rating1.00x
× vehicle age1.00x
= Full coverage estimate$2260

Coverage assumed: 100/300/100 liability + comprehensive/collision, $500 deductibles. Data sources: NAIC 2024 + HLDI loss studies.

Maintenance & Warranty

Recommended Mercedes-Benz GLC300 Service Intervals

Oil change
10K mi / 12 mo
Tire rotation
10K mi
Brake fluid
24 months
Transmission fluid
40K mi
Engine coolant
150K mi
Spark plugs
60K mi
Cabin air filter
20K mi
Engine air filter
40K mi
Differential (AWD/4WD)
40K mi

Service A / Service B alternating schedule. Requires MB-approved oil (229.5 spec typically).

"Severe service" conditions (heavy towing, extreme temps, city stop-and-go) typically halve these intervals. Always consult your vehicle's owner's manual for the authoritative schedule.

Mercedes-Benz New-Vehicle Warranty Coverage

Bumper-to-bumper (basic)
4 yr / 50K mi
Powertrain
4 yr / 50K mi
Hybrid/EV battery
10 yr / 155K mi
Corrosion (rust perforation)
4 yr / 50K mi
Roadside assistance
4 yr / unlimited mi

EQ EV battery warranty is 10 years/155,000 miles

These are the terms for a new Mercedes-Benz. If you're buying a used 2017 GLC300, remaining coverage is usually pro-rated from the vehicle's original in-service date. Not all coverage transfers between owners — check with a Mercedes-Benz dealer for VIN-specific remaining warranty.

Estimated Repair Costs

ENGINE(~50K mi)
$500
ELECTRICAL(~50K mi)
$500
FUEL SYSTEM(~50K mi)
$500
OTHER(~50K mi)
$500
AIR BAGS(~50K mi)
$500

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

  • ☐
    RECALLS: Verify all 12 recalls have been completed — free at any Mercedes-Benz dealer
  • ☐
    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.

2017
135Average
2016
169Avoid This Year
Full years-to-avoid analysis →

NHTSA Safety Rating

No NHTSA safety rating available

At a Glance

Complaints
135
Recalls
12
Fire reports
3
Crash reports
2
Injury reports
1
Segment avg
169

Check a Specific VIN

See recalls for YOUR 2017 Mercedes-Benz GLC300

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