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Mercedes-Benz GLC 300

2018 only

123 classified complaints 12 recalls

2018 Mercedes-Benz GLC 300 have 123 classified complaints on record for that year specifically, plus 12 recalls. The most common issue in this year is Airbags, seatbelts and restraints, typically surfacing around 58,500 miles.

Computed directly from stored federal records for 2018 model years only — not blended with the rest of this vehicle's production run. See the full Mercedes-Benz GLC 300 report for every year combined.

Where this year fits

2018

2019

2020

2021

2022

2023

Complaints filed per individual model year — highlighted bars link to their own dedicated page.

What breaks, and when — 2018 only

Airbags, seatbelts and restraints · Body and interior 19 complaints

Median onset: 58,500 miles. 5.3% of these reported an injury, a death, or a crash with fire.

Tends to show up later than this model's other issues.

Harsh, delayed or erratic shifting · Transmission 15 complaints

Median onset: 4,600 miles.

Tends to show up earlier than this model's other issues. · More common in older model years.

Oil consumption and leaks · Engine 15 complaints

Onset mileage not consistently reported.

More common in older model years.

Internal engine (bearings, pistons, rings) · Engine 12 complaints

Median onset: 9,200 miles.

More common in older model years.

Body control and other modules · Electrical 10 complaints

Median onset: 8,062 miles.

More common in newer model years.

Accessory belt, tensioner and pulleys · Engine 7 complaints

Onset mileage not consistently reported.

More common in older model years.

Sunroof and panoramic roof · Body and interior 6 complaints

Median onset: 13,250 miles.

Tends to show up later than this model's other issues. · Typical repair: $330–$620 nationally.

Transmission control module and sensors · Transmission 5 complaints

Median onset: 10,000 miles.

More common in older model years.

From owner-filed complaints to NHTSA, not independently verified. Federal mileage reporting on recent complaints is sparse — see how it works. Cost ranges are national estimates from book labor hours and parts pricing, not this vehicle's actual repair history — they don't account for your location or shop type.

Cost estimator: what will this one cost you?

Enter the car's year and mileage. See which known problems are due in your next 3 years, what each costs at your state's labor rates, which ones to ask the seller about, and routine maintenance to budget for.

Sources: NHTSA Office of Defects Investigation — complaints and recalls, scoped to 2018 model year. See the full Mercedes-Benz GLC 300 report for every year and full specs/safety data.