CarCostCheck

MERCEDES GLC 300 AMG LINE PREM+ E 4M A (2020)

Running costs, common problems, and reliability data based on 164 real MOT tests in 2024.

MOT Pass Rate

90%

Total Tests (2024)

164

Avg Mileage

31,971 mi

Est. Annual Cost

£1,772

Is the 2020 MERCEDES GLC 300 AMG LINE PREM+ E 4M A reliable?

Excellent reliability. Very few MOT failures. That's 8 points above the national average of 82%.

At 4 years old, 90% of MERCEDES GLC 300 AMG LINE PREM+ E 4M As from 2020 passed their MOT first time in 2024. That's based on 164 tests across the UK. The average mileage at this age is 31,971 miles.

How does the 2020 MERCEDES GLC 300 AMG LINE PREM+ E 4M A compare?

Rank among all 2020 cars1869th out of 2,596(top 72%)
Rank among all MERCEDES models651th out of 1,408(top 46%)
vs national average+8% (82% avg)
vs 2020 cars average-2% (92% avg)
vs MERCEDES average+3% (87% avg)

Mileage Analysis

The average 2020 MERCEDES GLC 300 AMG LINE PREM+ E 4M A has 31,971 miles on the clock, which is in line with the expected 29,600 miles for a 4-year-old car, suggesting normal everyday use.

Best year to buy a MERCEDES GLC 300 AMG LINE PREM+ E 4M A?

The most reliable year is the 2021 model with a 95% MOT pass rate, while the 2020 model has the lowest at 90%. Consider a different year if reliability is a priority.

How much does a 2020 MERCEDES GLC 300 AMG LINE PREM+ E 4M A cost to run?

Fuel (Hybrid, 1991cc)
£1,327
🏛️Road Tax
£190
🔧MOT Test
£55
🛠️Predicted Repairs
£200
Total per year£1,772
Per month£148/mo

Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.

MERCEDES GLC 300 AMG LINE PREM+ E 4M A by Year

YearPass RateTestsAvg Mileage
2022100%4026,103 mi
202195%33024,815 mi
202090%16431,971 mi

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About the 2020 MERCEDES GLC 300 AMG LINE PREM+ E 4M A

The 2020 MERCEDES GLC 300 AMG LINE PREM+ E 4M A is a family car with a 1991cc hybrid engine. 164 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. Among all cars from 2020, the average MOT pass rate is 92%, and this model falls short of that benchmark.

With an average of 31,971 miles at 4 years old, MERCEDES GLC 300 AMG LINE PREM+ E 4M A owners drive about as much as the UK average.

2020 MERCEDES GLC 300 AMG LINE PREM+ E 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 2020 MERCEDES GLC 300 AMG LINE PREM+ E 4M A?

Total estimated annual running cost is £1,772 148/month), broken down as £1327 fuel, £190 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 90% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

Buying a Used 2020 MERCEDES GLC 300 AMG LINE PREM+ E 4M A

At 4 years old, the MERCEDES GLC 300 AMG LINE PREM+ E 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.

Alternatives to the 2020 MERCEDES GLC 300 AMG LINE PREM+ E 4M A

If reliability is your priority, there are 3 similar cars with a higher MOT pass rate. Here are comparable hybrid cars with similar engines: