Mercedes GLC (2015)

Estimated running costs and MOT pass rates from 3,031 MOT tests in 2024.

Annual Cost

£2,491

£208/month

MOT Pass Rate

89%

Good

Road Tax

£410

Estimated/year

Est. Insurance

Grp 25-38

2143cc Diesel

Solid Option

89% pass rate, £2,491/year to run. 7 points above average.

Buying this car? Check for finance, write-offs & theft

£4.99

Check a specific Mercedes GLC

Enter a reg plate for full MOT history, mileage check, health score, running costs, and reliability data. Free, instant, no signup.

Diesel2143cc11 years old3,031 tests76k miles avg

Annual Running Costs

Fuel (Diesel, 2143cc)

~40 mpg

£1,676

Road Tax

Estimated CO2 band

£410

MOT Test

£55

Predicted Repairs

£350

Total per year£2,491

Per month£208/mo

Per week£48/wk

Estimates based on 7,400 miles/year (UK average), diesel at 199.33p a litre (GOV.UK weekly average, week of 19 October 2026), GOV.UK road tax rates and repair likelihood from MOT data. Insurance not included.

Reliability Verdict

89% MOT pass rate(Good)

0%All-model avg: 82%100%

Good reliability. Occasional issues but generally solid. That's 7 points above the average of 82% across all models in our data.

89% of MOT tests on Mercedes GLCs from 2015 ended in a pass in 2024, when they were about 9 years old. That's based on 3,031 tests across the UK, retests included. The average mileage recorded at those tests was 76,191 miles.

Got a Mercedes GLC you're looking at?

Enter the reg plate to check its specific MOT history, mileage, and health score.

How Does It Compare?

Rank among 2015 models166th of 515(top half)

Rank among Mercedes models679th of 1,376(top half)

vs average of all models+7%(82% avg)

vs 2015 models average+6%(83% avg)

vs Mercedes average+2%(87% avg)

Mileage Analysis

76,191

Average miles

66,600

Expected for age

The average 2015 Mercedes GLC had 76,191 miles on the clock at its 2024 MOT, which is in line with the expected 66,600 miles for a 9-year-old car, suggesting normal everyday use.

Looking at a specific Mercedes GLC?

Enter its reg plate for a free check with full MOT history, mileage verification, and predicted costs.

Best Year to Buy?

Of the years with at least 100 tests, the 2021 model has the highest MOT pass rate at 95%, while the 2015 model has the lowest at 89%. Consider a different year if reliability is a priority. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.

Mercedes GLC by Year

Year	Pass Rate	Tests	Avg Mileage
2022	96%	294	25,971 mi
2021	95%	6,414	29,460 mi
2020	94%	9,614	36,815 mi
2019	93%	30,341	42,501 mi
2018	91%	40,494	51,301 mi
2017	90%	28,866	61,718 mi
2016	89%	19,967	71,320 mi
2015	89%	3,031	76,191 mi

Similar Cars to Consider

Volkswagen Golf

2015 · 1968cc Diesel

£2,077/year

89%

same

Vauxhall Astra

2013 · 1700cc Diesel

£2,227/year

79%

-10%

BMW 3 Series

2013 · 1995cc Diesel

£2,077/year

85%

-4%

Kia Sportage

2016 · 1700cc Diesel

£2,077/year

85%

-4%

Check a Specific Mercedes GLC

Enter a reg plate to get the full MOT history, health score, and mileage verification.

Upgrade to Premium (£4.99) for stolen, finance, and write-off checks.

About the 2015 Mercedes GLC

The 2015 Mercedes GLC is a premium car. Our records list a 2143cc diesel engine, though engines vary between versions. 3,031 MOT tests were recorded on this model in 2024, making it a reasonably common sight on UK roads. Among all models from 2015, the average MOT pass rate is 83%, and this model beats that benchmark.

With an average of 76,191 miles recorded at its 2024 MOT tests, Mercedes GLC owners drive about as much as the UK average.

2015 Mercedes GLC 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 £1,676 per year with diesel at 199.33p per litre (GOV.UK weekly average, week of 19 October 2026; 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 GLC?

Total estimated annual running cost is £2,491 (£208/month), broken down as £1,676 fuel, £410 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 89% pass rate. Keeping on top of servicing will help avoid surprises.

Mercedes GLC Reliability Trend

Newer Mercedes GLCs pass their MOT more often than older ones, by 4 percentage points on average, which is mostly down to age and wear.

Buying a Used 2015 Mercedes GLC

At 11 years old, the Mercedes GLC 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.

Common Issues to Watch For

These are typical issues for cars of this age, fuel type and engine size, not faults recorded on this model's MOT tests. Use them as a checklist when you view one.

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 GLC stacks up against similar cars for estimated annual running costs, insurance group, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Est. Ins. Group	Total/yr
Mercedes GLC(2015)	89%	£1,676	£410	Grp 25-38	£2,491
Volkswagen Golf(2015)	89%	£1,397	£275	Grp 18-32	£2,077-£414
Vauxhall Astra(2013)	79%	£1,397	£275	Grp 18-32	£2,227-£264
BMW 3 Series(2013)	85%	£1,397	£275	Grp 18-32	£2,077-£414
Kia Sportage(2016)	85%	£1,397	£275	Grp 18-32	£2,077-£414

Estimates based on 7,400 miles/year, GOV.UK average pump prices for the week of 19 October 2026, GOV.UK road tax rates and MOT data. Insurance groups are our rough estimate from engine size, not official groups. Actual costs vary by driver, location, and usage.

Questions about the 2015 Mercedes GLC

Is the 2015 Mercedes GLC reliable?

Good reliability. Occasional issues but generally solid. 89% of MOT tests on 2015 Mercedes GLCs ended in a pass, from 3,031 tests (DVSA MOT data for tests in 2024, retests included). That's 7 points above the average of 82% across all models in the same data.

How much does a 2015 Mercedes GLC cost to run?

Our estimate is £2,491 a year (£208 a month): £1,676 fuel, £410 road tax, £55 MOT and £350 predicted repairs, based on 7,400 miles a year. Insurance is not included.

What is the MOT pass rate for a 2015 Mercedes GLC?

89% of 3,031 MOT tests on the 2015 Mercedes GLC ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 166th of 515 models first registered in 2015 (top half).

Which year Mercedes GLC has the best MOT pass rate?

Of the years with at least 100 tests, the 2021 Mercedes GLC has the highest MOT pass rate at 95% and the 2015 the lowest at 89%. Newer cars usually pass more often simply because they are younger and have done fewer miles.

What is the average mileage for a 2015 Mercedes GLC?

The average mileage recorded at MOT tests on the 2015 Mercedes GLC is 76,191 miles, which is in line with the expected 66,600 miles for a 9-year-old car, suggesting normal everyday use.