Mercedes-Benz Glc 300 problems, recalls & best years
The deets on every Glc 300 from 2018 to 2026: 423 owner complaints and 77 recalls across 9 model years.
The model years with the most owner complaints are 2018 (87), 2020 (69), 2021 (67). Best fuel economy: 29 mpg combined (2024).
Problem areas across all years
Year by year
| Year | Recalls | Complaints | Best mpg | |
|---|---|---|---|---|
| 2018 | 12 | 87 | 24 | |
| 2019 | 12 | 47 | 24 | |
| 2020 | 16 | 69 | 24 | |
| 2021 | 9 | 67 | 25 | |
| 2022 | 2 | 60 | 24 | |
| 2023 | 12 | 55 | 28 | |
| 2024 | 8 | 21 | 29 | |
| 2025 | 3 | 16 | 27 | |
| 2026 | 3 | 1 | 27 |
Want the full repair deets? Get the factory manual.
Recall and complaint data tells you what goes wrong. A service manual tells you how to fix it: torque specs, wiring diagrams, fluid capacities and step-by-step procedures for the Mercedes-Benz Glc 300.
Closest thing to the factory manual for most years. Pay once, keep it.
Most $25–$78, one-timePro-shop repair procedures, wiring diagrams and TSBs for your exact car.
From $19.99/mo · $39.99/yrOEM procedures, specs and recall/TSB info, the same source many shops use.
From $19.99/mo · $59.99/yrStep-by-step photos written from a real teardown. Great for first-timers.
Books ~$30–$40 · AllAccess $34.99/moHeads up: we may earn a commission if you buy through these links, at no extra cost to you. Prices checked 2026-10 and can change. We never host or link to pirated manuals. Disclosure
FAQ
What is the worst year for the Mercedes-Benz Glc 300?
The model years with the most owner complaints are 2018 (87), 2020 (69), 2021 (67).
How many recalls has the Mercedes-Benz Glc 300 had?
Across 2018–2026, NHTSA lists 77 vehicle recall campaigns by model year (a campaign that covers several years counts once per year).