How much does a 2015 MERCEDES GLA cost to run?

Estimated annual running cost is £2,045 (£170/month), including £1245 fuel, £395 road tax, £55 MOT, and £350 predicted repairs.

What is the MOT pass rate for a 2015 MERCEDES GLA?

The 2015 MERCEDES GLA has a 87% MOT pass rate based on 18,892 tests in 2026. This ranks 241 out of 559 cars from 2015.

Which year MERCEDES GLA is most reliable?

The 2020 MERCEDES GLA has the highest MOT pass rate at 92%. The least reliable year is 2015 at 87%.

What is the average mileage for a 2015 MERCEDES GLA?

The average mileage for a 2015 MERCEDES GLA is 71,667 miles, which is in line with the expected 81,400 miles for a 11-year-old car, suggesting normal everyday use.

MERCEDES GLA (2015)

Q: Is the 2015 MERCEDES GLA reliable?

Good reliability. Occasional issues but generally solid. 87% of MERCEDES GLAs from 2015 passed their MOT first time in 2026, based on 18,892 tests. That's 5 points above the national average of 82%.

Running costs, reliability data, and common problems from 18,892 real MOT tests.

Annual Cost

£2,045

£170/month

MOT Pass Rate

87%

Good

Road Tax

£395

Based on CC/year

Insurance

Grp 25-38

2143cc Diesel

Solid Option

87% pass rate, £2045/year to run. 5 points above average.

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Diesel2143cc11 years old18,892 tests72k miles avg

Annual Running Costs

Fuel (Diesel, 2143cc)

~40 mpg

£1,245

Road Tax

Based on 2143cc

£395

MOT Test

£55

Predicted Repairs

£350

Total per year£2,045

Per month£170/mo

Per week£39/wk

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

87% MOT pass rate(Good)

0%National avg: 82%100%

Good reliability. Occasional issues but generally solid. That's close to the national average of 82%.

At 11 years old, 87% of MERCEDES GLAs from 2015 passed their MOT first time in 2026. That's based on 18,892 tests across the UK. The average mileage at this age is 71,667 miles.

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How Does It Compare?

Rank among 2015 cars241th of 559(top 43%)

Rank among MERCEDES models791th of 1,408(top 56%)

vs national average+5%(82% avg)

vs 2015 cars average+4%(83% avg)

vs MERCEDES average+0%(87% avg)

Mileage Analysis

71,667

Average miles

81,400

Expected for age

The average 2015 MERCEDES GLA has 71,667 miles on the clock, which is in line with the expected 81,400 miles for a 11-year-old car, suggesting normal everyday use.

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Best Year to Buy?

The most reliable year is the 2020 model with a 92% MOT pass rate, while the 2015 model has the lowest at 87%. Consider a different year if reliability is a priority.

MERCEDES GLA by Year

Year	Pass Rate	Tests	Avg Mileage
2020	92%	2,329	29,861 mi
2019	91%	21,479	37,588 mi
2018	90%	31,717	45,302 mi
2017	88%	26,444	55,257 mi
2016	87%	21,237	64,678 mi
2015	87%	18,892	71,667 mi
2014	88%	7,894	75,803 mi

Similar Cars to Consider

VOLKSWAGEN GOLF

2015 · 1968cc Diesel

£1,577/year

89%

+2%

VAUXHALL ASTRA

2013 · 1700cc Diesel

£1,727/year

79%

-8%

FORD TRANSIT

2017 · 1995cc Diesel

£1,632/year

81%

-6%

BMW 3 SERIES

2013 · 1995cc Diesel

£1,577/year

85%

-2%

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About the 2015 MERCEDES GLA

The 2015 MERCEDES GLA is a family car with a 2143cc diesel engine. 18,892 of these vehicles were MOT tested in 2026, making it one of the most commonly tested cars on UK roads. Among all cars from 2015, the average MOT pass rate is 83%, and this model beats that benchmark.

With an average of 71,667 miles at 11 years old, MERCEDES GLA owners drive about as much as the UK average.

2015 MERCEDES GLA Fuel Costs

The 2143cc diesel engine offers a reasonable balance between performance and economy. Expect around 40 mpg in mixed driving, which works out to roughly £1,245 per year at current diesel prices of 148p per litre (based on 7,400 miles per year). Diesel cars of this age should have their DPF (diesel particulate filter) checked, as replacements can be costly.

What does it cost to own a 2015 MERCEDES GLA?

Total estimated annual running cost is £2,045 (£170/month), broken down as £1245 fuel, £395 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 87% pass rate. Keeping on top of servicing will help avoid surprises.

MERCEDES GLA Reliability Trend

The MERCEDES GLA has maintained consistent MOT pass rates across model years, varying by only 3 percentage points.

Buying a Used 2015 MERCEDES GLA

At 11 years old, the MERCEDES GLA is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age. With 18,892 MOT tests in our data, there's strong statistical confidence in these figures.

Common Issues to Watch For

Based on the 2015 MERCEDES GLA's fuel type, age, and engine size, these are the most likely problem areas to check.

DPF (Diesel Particulate Filter)

Watch out

Short journeys clog the DPF. Replacement costs £1,000-£2,500. Check the DPF warning light and ask about driving patterns.

Turbo Wear

Watch out

Diesel turbos work harder and wear faster. Listen for whining noises and check for oil leaks around the turbo housing.

AdBlue System

Medium risk

Post-2015 diesels use AdBlue for emissions. Sensor failures and tank heater issues are common. Budget £200-£500 for repairs.

EGR Valve

Watch out

Exhaust Gas Recirculation valves clog with carbon deposits, causing rough running and poor economy. Cleaning costs £150-£300, replacement £300-£600.

Dual Mass Flywheel

Watch out

Larger diesel engines put extra strain on the dual mass flywheel. Listen for rattling at idle. Replacement with clutch is £800-£1,500.

Rust and Corrosion

Watch out

At 10+ years, check wheel arches, sills, subframe, and brake lines for rust. Structural corrosion is an MOT failure. Prevention is far cheaper than repair.

Suspension Bushings

Watch out

Rubber suspension bushes harden and crack with age, causing knocking noises and vague handling. A full refresh costs £300-£800 depending on the car.

Service History

Low risk

Always 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 2015 MERCEDES GLA stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
MERCEDES GLA(2015)	87%	£1245	£395	Grp 25-38	£2045
VOLKSWAGEN GOLF(2015)	89%	£1037	£135	Grp 18-32	£1577-£468
VAUXHALL ASTRA(2013)	79%	£1037	£135	Grp 18-32	£1727-£318
FORD TRANSIT(2017)	81%	£1037	£190	Grp 18-32	£1632-£413
BMW 3 SERIES(2013)	85%	£1037	£135	Grp 18-32	£1577-£468

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.