2018 Mercedes-Benz GLC
This year drew an ordinary 294 complaints for a Mercedes-Benz GLC — the model's median is 121. What they were about is the unusual part: 23.1% of them mention crankcase, against 6.6% across the model's other years.
| Complaints filed | 294 |
|---|---|
| Median for this model | 121 |
| Involving a crash | 15 |
| Involving a fire | 3 |
| Recalls | 0 |
| EPA combined | 24 mpg |
What the complaints were about
- crankcase — 23.1% of this year's complaints, against 6.6% across the model's other years (3.5×). Owners wrote it as: crankcase, p052e, known issue, crankcase vent.
- pcv — 6.1% of this year's complaints, against 1.6% across the model's other years (3.7×). Owners wrote it as: pcv, requiring, p052e pcv.
- creating — 7.1% of this year's complaints, against 2.6% across the model's other years (2.7×). Owners wrote it as: creating, gas pedal, wear, heels.
Words owners used for the same problem are counted together, so a fault written four different ways is measured once. Grouped by which complaints they appear in, not by a list anyone wrote in advance.
What owners wrote
MY HEEL GOT STUCK WHEN PRESSING THE GAS PEDAL CREATING A SAFETY HAZARD. MY SHOE WAS STUCK AND I HAD TO DRIVE BAREFOOT. I TOOK IT TO THE MERCEDES CALABASAS DEALERSHIP AND THEY SAID THERE WAS NOTHING THEY COULD DO AND I SHOULD NOT WEAR HEELS WHEN DRIVING. I HAVE…
MY WORK HEELS GOT STUCK BETWEEN THE CARPET AND GAS PEDAL CREATING A DRIVING HAZARD. THERE IS A GAP THAT IS DANGEROUS AND AFTER NOTIFYING THE DEALER AND MB, THEY SAID THAT I SHOULD NOT WEAR WORK HEELS. I AM A PROFESSIONAL WOMAN AND WEAR BUSINESS SHOES. THE HEEL…
Verbatim from NHTSA complaint filings, with identifying details removed.
How this was worked out
Every year of the Mercedes-Benz GLC was compared against its own history rather than against other cars, which removes popularity and age from the answer — a common car draws more complaints at equal reliability, and an older one has had longer to accumulate them. A year is flagged when it drew at least 2.5× this model's median and at least 50 complaints.
This is a fault record, not a review. Nobody files a federal complaint to say the car was fine, so it shows what tends to go wrong — not whether owners liked it, and not whether it is a good car.
Source: NHTSA complaints, recalls and investigations, retrieved . Look this vehicle up directly on NHTSA's site to check anything here.
Own a 2018 Mercedes-Benz GLC? What happened to yours?
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