CarCostCheck

MERCEDES AMG GLB 35 PREMIUM + 4MATIC A (2021)

Running costs, common problems, and reliability data based on 191 real MOT tests in 2024.

MOT Pass Rate

91%

Total Tests (2024)

191

Avg Mileage

25,933 mi

Est. Annual Cost

£1,772

Is the 2021 MERCEDES AMG GLB 35 PREMIUM + 4MATIC A reliable?

Excellent reliability. Very few MOT failures. That's 9 points above the national average of 82%. It also outperforms the MERCEDES brand average of 87%.

At 3 years old, 91% of MERCEDES AMG GLB 35 PREMIUM + 4MATIC As from 2021 passed their MOT first time in 2024. That's based on 191 tests across the UK. The average mileage at this age is 25,933 miles.

How does the 2021 MERCEDES AMG GLB 35 PREMIUM + 4MATIC A compare?

Rank among all 2021 cars2342th out of 3,373(top 69%)
Rank among all MERCEDES models580th out of 1,408(top 41%)
vs national average+9% (82% avg)
vs 2021 cars average-1% (92% avg)
vs MERCEDES average+4% (87% avg)

Mileage Analysis

The average 2021 MERCEDES AMG GLB 35 PREMIUM + 4MATIC A has 25,933 miles on the clock, which is in line with the expected 22,200 miles for a 3-year-old car, suggesting normal everyday use.

How much does a 2021 MERCEDES AMG GLB 35 PREMIUM + 4MATIC A cost to run?

Fuel (Petrol, 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.

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About the 2021 MERCEDES AMG GLB 35 PREMIUM + 4MATIC A

The 2021 MERCEDES AMG GLB 35 PREMIUM + 4MATIC A is a family car with a 1991cc petrol engine. 191 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. Among all cars from 2021, the average MOT pass rate is 92%, and this model falls short of that benchmark.

With an average of 25,933 miles at 3 years old, MERCEDES AMG GLB 35 PREMIUM + 4MATIC A owners drive about as much as the UK average.

2021 MERCEDES AMG GLB 35 PREMIUM + 4MATIC A Fuel Costs

The 1991cc petrol 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 petrol prices of 142p per litre (based on 7,400 miles per year).

What does it cost to own a 2021 MERCEDES AMG GLB 35 PREMIUM + 4MATIC 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 91% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

Buying a Used 2021 MERCEDES AMG GLB 35 PREMIUM + 4MATIC A

At 3 years old, this is still relatively fresh. You may find examples with remaining manufacturer warranty. Depreciation is slowing but hasn't bottomed out yet.

Alternatives to the 2021 MERCEDES AMG GLB 35 PREMIUM + 4MATIC A

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