MERCEDES GLC 300 AMG LINE E 4MATIC AUTO (2022)
Running costs, reliability data, and common problems from 32 real MOT tests.
Annual Cost
£1,777
£148/month
MOT Pass Rate
97%
Excellent
Road Tax
£195
Flat rate/year
Insurance
Grp 18-32
1991cc Hybrid
Great Choice
97% pass rate, £1777/year to run. 15 points above average.
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Annual Running Costs
~36 mpg
Flat rate (post-2017)
Low estimate due to excellent reliability
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.
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Reliability Verdict
Excellent reliability. Very few MOT failures. That's 15 points above the national average of 82%. It also outperforms the MERCEDES brand average of 87%.
At 4 years old, 97% of MERCEDES GLC 300 AMG LINE E 4MATIC AUTOs from 2022 passed their MOT first time in 2026. That's based on 32 tests across the UK. The average mileage at this age is 25,277 miles.
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How Does It Compare?
Mileage Analysis
25,277
Average miles
29,600
Expected for age
The average 2022 MERCEDES GLC 300 AMG LINE E 4MATIC AUTO has 25,277 miles on the clock, which is in line with the expected 29,600 miles for a 4-year-old car, suggesting normal everyday use.
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Best Year to Buy?
The most reliable year is the 2021 model with a 97% MOT pass rate, while the 2020 model has the lowest at 95%. The 2022 sits between the two at 97%.
MERCEDES GLC 300 AMG LINE E 4MATIC AUTO by Year
Similar Cars to Consider
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About the 2022 MERCEDES GLC 300 AMG LINE E 4MATIC AUTO
The 2022 MERCEDES GLC 300 AMG LINE E 4MATIC AUTO is a family car with a 1991cc hybrid engine. 32 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. Among all cars from 2022, the average MOT pass rate is 94%, and this model beats that benchmark.
With an average of 25,277 miles at 4 years old, MERCEDES GLC 300 AMG LINE E 4MATIC AUTO owners drive about as much as the UK average.
2022 MERCEDES GLC 300 AMG LINE E 4MATIC AUTO Fuel Costs
The 1991cc hybrid engine offers a reasonable balance between performance and economy. Expect around 36 mpg in mixed driving, which works out to roughly £1,327 per year at current hybrid prices of 142p per litre (based on 7,400 miles per year). As a hybrid, real-world fuel costs will vary significantly depending on how much electric-only driving you do.
What does it cost to own a 2022 MERCEDES GLC 300 AMG LINE E 4MATIC AUTO?
Total estimated annual running cost is £1,777 (£148/month), broken down as £1327 fuel, £195 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 97% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
Buying a Used 2022 MERCEDES GLC 300 AMG LINE E 4MATIC AUTO
At 4 years old, the MERCEDES GLC 300 AMG LINE E 4MATIC AUTO offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost. If you're flexible on year, the 2021 model has the highest pass rate at 97%. Note: with only 32 tests in our data, these figures should be treated as indicative rather than definitive.
Common Issues to Watch For
Based on the 2022 MERCEDES GLC 300 AMG LINE E 4MATIC AUTO's fuel type, age, and engine size, these are the most likely problem areas to check.
Hybrid Battery Health
Low riskAfter 4 years, hybrid battery capacity may have reduced. A full replacement costs £2,000-£4,000, though reconditioning is cheaper at £500-£1,500.
Inverter and Power Electronics
Low riskThe inverter converts DC to AC for the electric motor. Failures are expensive (£1,500+) but relatively rare. Listen for unusual buzzing sounds.
Regenerative Braking
Low riskBrake discs can corrode from reduced use (the electric motor handles most braking). Surface rust is normal but deep pitting needs attention.
Service History
Low riskAlways request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.
Running Costs Compared
How the 2022 MERCEDES GLC 300 AMG LINE E 4MATIC AUTO stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| MERCEDES GLC 300 AMG LINE E 4MATIC AUTO(2022) | 97% | £1327 | £195 | Grp 18-32 | £1777 |
| TOYOTA C-HR(2020) | 93% | £1327 | £190 | Grp 18-32 | £1772-£5 |
| HYUNDAI IONIQ(2021) | 91% | £1137 | £190 | Grp 12-25 | £1582-£195 |
| MINI COOPER S(2021) | 93% | £1137 | £190 | Grp 12-25 | £1582-£195 |
| LAND ROVER RANGE ROVER SPORT(2020) | 94% | £1327 | £190 | Grp 18-32 | £1772-£5 |
Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.
Related Mercedes Models
Explore other Mercedes cars or similar models in the same category.
MERCEDES A
2019 · 1461cc Diesel
MERCEDES C
2017 · 1991cc Hybrid
MERCEDES A-CLASS
2017 · 1461cc Diesel
TOYOTA C-HR
2020 · 1987cc Hybrid
HYUNDAI IONIQ
2021 · 1580cc Hybrid
MINI COOPER S
2021 · 1499cc Hybrid
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