How much does a 2015 MERCEDES G-CLASS 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 G-CLASS?

The 2015 MERCEDES G-CLASS has a 88% MOT pass rate based on 591 tests in 2026. This ranks 223 out of 559 cars from 2015.

Which year MERCEDES G-CLASS is most reliable?

The 2020 MERCEDES G-CLASS has the highest MOT pass rate at 98%. The least reliable year is 2021 at 78%.

MERCEDES G-CLASS (2015)

Q: Is the 2015 MERCEDES G-CLASS reliable?

Good reliability. Occasional issues but generally solid. 88% of MERCEDES G-CLASSs from 2015 passed their MOT first time in 2026, based on 591 tests. That's 6 points above the national average of 82%.

Q: What is the average mileage for a 2015 MERCEDES G-CLASS?

The average mileage for a 2015 MERCEDES G-CLASS is 48,991 miles, which is below the expected 81,400 miles for a 11-year-old car. This suggests lighter use than average, which generally means less wear on major components.

Running costs, reliability data, and common problems from 591 real MOT tests.

Annual Cost

£2,045

£170/month

MOT Pass Rate

88%

Good

Road Tax

£395

Based on CC/year

Insurance

Grp 30-42

2987cc Diesel

Solid Option

88% pass rate, £2045/year to run. 6 points above average.

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Diesel2987cc11 years old591 tests49k miles avg

Annual Running Costs

Fuel (Diesel, 2987cc)

~40 mpg

£1,245

Road Tax

Based on 2987cc

£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

88% MOT pass rate(Good)

0%National avg: 82%100%

Good reliability. Occasional issues but generally solid. That's 6 points above the national average of 82%.

At 11 years old, 88% of MERCEDES G-CLASSs from 2015 passed their MOT first time in 2026. That's based on 591 tests across the UK. The average mileage at this age is 48,991 miles.

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How Does It Compare?

Rank among 2015 cars223th of 559(top 40%)

Rank among MERCEDES models762th of 1,408(top 54%)

vs national average+6%(82% avg)

vs 2015 cars average+5%(83% avg)

vs MERCEDES average+1%(87% avg)

Mileage Analysis

48,991

Average miles

81,400

Expected for age

The average 2015 MERCEDES G-CLASS has 48,991 miles on the clock, which is below the expected 81,400 miles for a 11-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 98% MOT pass rate, while the 2021 model has the lowest at 78%. The 2015 sits between the two at 88%.

MERCEDES G-CLASS by Year

Year	Pass Rate	Tests	Avg Mileage
2021	78%	65	30,190 mi
2020	98%	66	32,570 mi
2019	96%	319	41,698 mi
2018	94%	807	39,199 mi
2017	86%	691	43,730 mi
2016	94%	604	58,012 mi
2015	88%	591	48,991 mi
2014	92%	362	54,969 mi
2013	94%	449	69,675 mi
2012	90%	221	76,209 mi
2011	96%	92	70,666 mi
2010	73%	33	78,145 mi
2007	100%	35	103,461 mi
2001	60%	42	93,234 mi
1999	82%	44	113,541 mi

Similar Cars to Consider

AUDI A5

2017 · 2967cc Diesel

£1,840/year

89%

+1%

MERCEDES GLC

2017 · 2987cc Diesel

£1,690/year

90%

+2%

LAND ROVER RANGE ROVER

2013 · 2926cc Diesel

£1,900/year

88%

same

JAGUAR XF

2014 · 2993cc Diesel

£1,900/year

84%

-4%

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About the 2015 MERCEDES G-CLASS

The 2015 MERCEDES G-CLASS is a large car with a 2987cc diesel engine. 591 of these vehicles were MOT tested in 2026, making it a less common model in the UK market. Among all cars from 2015, the average MOT pass rate is 83%, and this model beats that benchmark.

With an average of 48,991 miles at 11 years old, MERCEDES G-CLASS owners tend to use this car less than the typical driver.

2015 MERCEDES G-CLASS Fuel Costs

The 2987cc diesel engine is on the larger side, so fuel won't be this car's strong point. 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 G-CLASS?

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 88% pass rate. Keeping on top of servicing will help avoid surprises.

MERCEDES G-CLASS Reliability Trend

The MERCEDES G-CLASS has maintained consistent MOT pass rates across model years, varying by only 1 percentage points.

Buying a Used 2015 MERCEDES G-CLASS

At 11 years old, the MERCEDES G-CLASS 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. If you're flexible on year, the 2020 model has the highest pass rate at 98%.

Common Issues to Watch For

Based on the 2015 MERCEDES G-CLASS'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 G-CLASS stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
MERCEDES G-CLASS(2015)	88%	£1245	£395	Grp 30-42	£2045
AUDI A5(2017)	89%	£1245	£190	Grp 30-42	£1840-£205
MERCEDES GLC(2017)	90%	£1245	£190	Grp 30-42	£1690-£355
LAND ROVER RANGE ROVER(2013)	88%	£1245	£250	Grp 30-42	£1900-£145
JAGUAR XF(2014)	84%	£1245	£250	Grp 30-42	£1900-£145

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.