MERCEDES M8 (2017)
Running costs, common problems, and reliability data based on 146 real MOT tests in 2024.
MOT Pass Rate
76%
Total Tests (2024)
146
Avg Mileage
239,453 mi
Est. Annual Cost
£1,990
Is the 2017 MERCEDES M8 reliable?
Average reliability. Expect some repairs as it ages. That's 6 points below the national average of 82%. It falls below the MERCEDES brand average of 87%.
At 7 years old, 76% of MERCEDES M8s from 2017 passed their MOT first time in 2024. That's based on 146 tests across the UK. The average mileage at this age is 239,453 miles.
How does the 2017 MERCEDES M8 compare?
Mileage Analysis
The average 2017 MERCEDES M8 has 239,453 miles on the clock, which is well above the expected 51,800 miles for a 7-year-old car. Check service history carefully, as high-mileage cars need consistent maintenance to stay reliable.
Best year to buy a MERCEDES M8?
The most reliable year is the 2019 model with a 82% MOT pass rate, while the 2017 model has the lowest at 76%. Consider a different year if reliability is a priority.
How much does a 2017 MERCEDES M8 cost to run?
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
MERCEDES M8 by Year
Checking a specific MERCEDES M8?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2017 MERCEDES M8
The 2017 MERCEDES M8 is a family car with a 2143cc diesel engine. 146 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. It sits in the bottom 97% of 2017 cars for MOT pass rates.
With an average of 239,453 miles at 7 years old, MERCEDES M8 owners cover more miles than the average driver. High-mileage examples should be checked carefully for wear on suspension, brakes, and drivetrain components.
2017 MERCEDES M8 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 2017 MERCEDES M8?
Total estimated annual running cost is £1,990 (£166/month), broken down as £1245 fuel, £190 road tax, £55 MOT, and £500 predicted repairs. Repair costs are moderate, reflecting the 76% pass rate. Keeping on top of servicing will help avoid surprises.
MERCEDES M8 Reliability Trend
Newer MERCEDES M8s show better MOT pass rates than older ones, with an average improvement of 5 percentage points.
Buying a Used 2017 MERCEDES M8
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.
Alternatives to the 2017 MERCEDES M8
If reliability is your priority, there are 4 similar cars with a higher MOT pass rate. Here are comparable diesel cars with similar engines:
- VOLKSWAGEN GOLF (2015) 89% pass rate (+13%) from 121,777 tests
- FORD TRANSIT (2017) 81% pass rate (+5%) from 80,031 tests
- FORD KUGA (2019) 91% pass rate (+15%) from 72,831 tests
- KIA SPORTAGE (2016) 85% pass rate (+9%) from 66,048 tests