CarCostCheck

MERCEDES G-CLASS (2017)

Running costs, common problems, and reliability data based on 691 real MOT tests in 2024.

Share:XFacebookWhatsApp

MOT Pass Rate

86%

Total Tests (2024)

691

Avg Mileage

43,730 mi

Est. Annual Cost

£1,840

Is the 2017 MERCEDES G-CLASS reliable?

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

At 7 years old, 86% of MERCEDES G-CLASSs from 2017 passed their MOT first time in 2024. That's based on 691 tests across the UK. The average mileage at this age is 43,730 miles.

How does the 2017 MERCEDES G-CLASS compare?

Rank among all 2017 cars400th out of 579(top 69%)
Rank among all MERCEDES models857th out of 1,408(top 61%)
vs national average+4% (82% avg)
vs 2017 cars average-1% (87% avg)
vs MERCEDES average-1% (87% avg)

Mileage Analysis

The average 2017 MERCEDES G-CLASS has 43,730 miles on the clock, which is in line with the expected 51,800 miles for a 7-year-old car, suggesting normal everyday use.

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 2017 sits between the two at 86%.

How much does a 2017 MERCEDES G-CLASS cost to run?

⛽Fuel (Diesel, 2987cc)
£1,245
🏛️Road Tax
£190
🔧MOT Test
£55
🛠️Predicted Repairs
£350
Total per year£1,840
Per month£153/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?

Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.

GB

Free instant check using official DVSA and DVLA data

About the 2017 MERCEDES G-CLASS

The 2017 MERCEDES G-CLASS is a large car with a 2987cc diesel engine. 691 of these vehicles were MOT tested in 2024, making it a less common model in the UK market. Among all cars from 2017, the average MOT pass rate is 87%, and this model falls short of that benchmark.

With an average of 43,730 miles at 7 years old, MERCEDES G-CLASS owners drive about as much as the UK average.

2017 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 2017 MERCEDES G-CLASS?

Total estimated annual running cost is £1,840 (£153/month), broken down as £1245 fuel, £190 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 86% 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 2017 MERCEDES G-CLASS

At 7 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 2017 MERCEDES G-CLASS

If reliability is your priority, there are 4 similar cars with a higher MOT pass rate. Here are comparable diesel cars with similar engines: