Used Mercedes-Benz GLC: Inspection checklist

Pick the model year you are going to see. Each sheet lists the checks for the problems owners reported on that year, in the order you would do them at the car. Owners filed 543 complaints across these 8 years; the 2020 drew the most.

Choose a model year

Problems that follow the GLC from year to year

Each of these is a top-three complaint area in at least two model years. Darker cells mean more complaints that year. Whatever year you are looking at, give these extra time.

Area	2018	2019	2020	2021	2022	2023	2024	Total
Electrical	13	16	10	6	5	23	4	77
Engine	18	6	17	21	3	3		68
Transmission	9	5	4	2	5	3	6	34
Steering	3	4	5		14	2		28
Exterior lights			4	6		5	2	17

GLC generations and updates

First years of a new generation and mid-cycle updates are marked. Each year links to its checklist.

Second generation
2023–2023
- 2023first year
First generation
2016–2022
2020 update: Updated MBUX Operating System; New engines; New steering wheel; 12.3-inch digital cockpit

Mileages where GLC problems start

From owner reports for each model year, lowest mileage first. Compare these with the odometer of the car you are seeing.

Typical mileage	Problem	Year
10–1,500 miles	48V/12V battery no-start	2023
300–4,800 miles	Recurring check engine light	2023
25,000–35,000 miles	Sudden power loss, no restart	2019
25,600–40,000 miles	Panoramic roof glass or panel failure	2019
27,000–52,880 miles	Crankcase ventilation valve fault (P052E)	2019
30,000–60,000 miles	Rearview camera blank or mirrored	2020
33,529–39,000 miles	Cylinder head failure, power loss	2021
35,000–70,000 miles	Crankcase ventilation valve fault	2018
40,000–57,500 miles	Cylinder head failure, misfires	2020
60,000–72,000 miles	Clock spring and airbag warning	2018
65,000–69,000 miles	Headlight moisture and failure	2020