MERCEDES GLC 300 AMG LINE PREMIUM 4M A (2022)
Running costs, reliability data, and common problems from 42 real MOT tests.
Annual Cost
£1,777
£148/month
MOT Pass Rate
98%
Excellent
Road Tax
£195
Flat rate/year
Insurance
Grp 18-32
1991cc Hybrid
Great Choice
98% pass rate, £1777/year to run. 16 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 16 points above the national average of 82%. It also outperforms the MERCEDES brand average of 87%.
At 4 years old, 98% of MERCEDES GLC 300 AMG LINE PREMIUM 4M As from 2022 passed their MOT first time in 2026. That's based on 42 tests across the UK. The average mileage at this age is 18,139 miles.
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How Does It Compare?
Mileage Analysis
18,139
Average miles
29,600
Expected for age
The average 2022 MERCEDES GLC 300 AMG LINE PREMIUM 4M A has 18,139 miles on the clock, which is below the expected 29,600 miles for a 4-year-old car. This suggests lighter use than average, which generally means less wear on major components.
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Best Year to Buy?
The most reliable year is the 2020 model with a 94% MOT pass rate, while the 2019 model has the lowest at 85%. The 2022 sits between the two at 98%.
MERCEDES GLC 300 AMG LINE PREMIUM 4M A by Year
Similar Cars to Consider
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About the 2022 MERCEDES GLC 300 AMG LINE PREMIUM 4M A
The 2022 MERCEDES GLC 300 AMG LINE PREMIUM 4M A is a family car with a 1991cc hybrid engine. 42 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It ranks in the top 23% of all 2022 cars for reliability.
With an average of 18,139 miles at 4 years old, MERCEDES GLC 300 AMG LINE PREMIUM 4M A owners tend to use this car less than the typical driver.
2022 MERCEDES GLC 300 AMG LINE PREMIUM 4M A 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 PREMIUM 4M A?
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 98% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
MERCEDES GLC 300 AMG LINE PREMIUM 4M A Reliability Trend
Newer MERCEDES GLC 300 AMG LINE PREMIUM 4M As show better MOT pass rates than older ones, with an average improvement of 9 percentage points.
Buying a Used 2022 MERCEDES GLC 300 AMG LINE PREMIUM 4M A
At 4 years old, the MERCEDES GLC 300 AMG LINE PREMIUM 4M A 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 2020 model has the highest pass rate at 94%. Note: with only 42 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 PREMIUM 4M A'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 PREMIUM 4M A 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 PREMIUM 4M A(2022) | 98% | £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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