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MERCEDES G-CLASS (2015)

Running costs, common problems, and reliability data based on 591 real MOT tests in 2024.

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MOT Pass Rate

88%

Total Tests (2024)

591

Avg Mileage

48,991 mi

Est. Annual Cost

£1,900

Is the 2015 MERCEDES G-CLASS reliable?

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

At 9 years old, 88% of MERCEDES G-CLASSs from 2015 passed their MOT first time in 2024. That's based on 591 tests across the UK. The average mileage at this age is 48,991 miles.

How does the 2015 MERCEDES G-CLASS compare?

Rank among all 2015 cars223th out of 559(top 40%)
Rank among all MERCEDES models762th out 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

The average 2015 MERCEDES G-CLASS has 48,991 miles on the clock, which is below the expected 66,600 miles for a 9-year-old car. This suggests lighter use than average, which generally means less wear on major components.

Best year to buy a MERCEDES G-CLASS?

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%.

How much does a 2015 MERCEDES G-CLASS cost to run?

⛽Fuel (Diesel, 2987cc)
£1,245
🏛️Road Tax
£250
🔧MOT Test
£55
🛠️Predicted Repairs
£350
Total per year£1,900
Per month£158/mo

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

MERCEDES G-CLASS by Year

YearPass RateTestsAvg Mileage
202178%6530,190 mi
202098%6632,570 mi
201996%31941,698 mi
201894%80739,199 mi
201786%69143,730 mi
201694%60458,012 mi
201588%59148,991 mi
201492%36254,969 mi
201394%44969,675 mi
201290%22176,209 mi
201196%9270,666 mi
201073%3378,145 mi
2007100%35103,461 mi
200160%4293,234 mi
199982%44113,541 mi

Checking a specific MERCEDES G-CLASS?

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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 2024, 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 9 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 £1,900 (£158/month), broken down as £1245 fuel, £250 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 9 years old, this is a solid used buy if you find one with good service history. Depreciation has levelled off, so you won't lose much more value. Focus on condition over mileage. If you're flexible on year, the 2020 model has the highest pass rate at 98%.

Alternatives to the 2015 MERCEDES G-CLASS

If reliability is your priority, there are 2 similar cars with a higher MOT pass rate. Here are comparable diesel cars with similar engines: