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Mercedes-Benz GLC 300

2020 only

85 classified complaints 16 recalls

2020 Mercedes-Benz GLC 300 have 85 classified complaints on record for that year specifically, plus 16 recalls. The most common issue in this year is Driver-assist cameras, radar and calibration, typically surfacing around 20,443 miles.

Computed directly from stored federal records for 2020 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 — 2020 only

Driver-assist cameras, radar and calibration · Electrical 11 complaints

Median onset: 20,443 miles.

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

Which other vehicles have driver-assist problems? →
Head gasket and cylinder head · Engine 10 complaints

Median onset: 40,000 miles.

Tends to show up later than this model's other issues. · More common in older model years. · Typical repair: $1,620–$3,010 nationally.

Which other vehicles have head gasket failures? →
Sunroof and panoramic roof · Body and interior 8 complaints

Median onset: 35,268 miles.

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

Body control and other modules · Electrical 6 complaints

Median onset: 20,250 miles. 33.3% of these reported an injury, a death, or a crash with fire.

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

Harsh, delayed or erratic shifting · Transmission 6 complaints

Median onset: 3,000 miles.

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

Which other vehicles have automatic transmission problems? →
Shocks and struts · Suspension 6 complaints

Onset mileage not consistently reported.

More common in older model years. · Typical repair: $280–$1,440 nationally.

Infotainment, screen and software · Electrical 5 complaints

Onset mileage not consistently reported.

More common in newer model years.

Water leaks and seals · Body and interior 4 complaints

Median onset: 65,000 miles.

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

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 2020 model year. See the full Mercedes-Benz GLC 300 report for every year and full specs/safety data.