MERCEDES G (2017)
Running costs, common problems, and reliability data based on 43 real MOT tests in 2024.
MOT Pass Rate
98%
Total Tests (2024)
43
Avg Mileage
37,599 mi
Est. Annual Cost
£1,690
Is the 2017 MERCEDES G reliable?
Excellent reliability. Very few MOT failures. That's 16 points above the national average of 82%. It also outperforms the MERCEDES brand average of 87%.
At 7 years old, 98% of MERCEDES Gs from 2017 passed their MOT first time in 2024. That's based on 43 tests across the UK. The average mileage at this age is 37,599 miles.
How does the 2017 MERCEDES G compare?
Mileage Analysis
The average 2017 MERCEDES G has 37,599 miles on the clock, which is below the expected 51,800 miles for a 7-year-old car. This suggests lighter use than average, which generally means less wear on major components.
Best year to buy a MERCEDES G?
The most reliable year is the 2018 model with a 98% MOT pass rate, while the 2019 model has the lowest at 93%. The 2017 sits between the two at 98%.
How much does a 2017 MERCEDES G 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 G by Year
Checking a specific MERCEDES G?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2017 MERCEDES G
The 2017 MERCEDES G is a large car with a 2987cc diesel engine. 43 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. It ranks in the top 7% of all 2017 cars for reliability.
With an average of 37,599 miles at 7 years old, MERCEDES G owners tend to use this car less than the typical driver.
2017 MERCEDES G 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?
Total estimated annual running cost is £1,690 (£141/month), broken down as £1245 fuel, £190 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 98% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
MERCEDES G Reliability Trend
The MERCEDES G has maintained consistent MOT pass rates across model years, varying by only 1 percentage points.
Buying a Used 2017 MERCEDES G
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 2018 model has the highest pass rate at 98%. Note: with only 43 tests in our data, these figures should be treated as indicative rather than definitive.
Alternatives to the 2017 MERCEDES G
The MERCEDES G is actually the most reliable option among similar diesel large cars from this era. Here are comparable diesel cars with similar engines:
- MERCEDES E (2019) 90% pass rate (-8%) from 41,000 tests
- MERCEDES GLC (2018) 91% pass rate (-7%) from 40,494 tests
- AUDI A5 (2017) 89% pass rate (-9%) from 33,531 tests
- FORD RANGER (2019) 87% pass rate (-11%) from 32,194 tests