MERCEDES GLE (2018)
Running costs, common problems, and reliability data based on 13,420 real MOT tests in 2024.
MOT Pass Rate
91%
Total Tests (2024)
13,420
Avg Mileage
55,355 mi
Est. Annual Cost
£1,690
Is the 2018 MERCEDES GLE reliable?
Excellent reliability. Very few MOT failures. That's 9 points above the national average of 82%. It also outperforms the MERCEDES brand average of 87%.
At 6 years old, 91% of MERCEDES GLEs from 2018 passed their MOT first time in 2024. That's based on 13,420 tests across the UK. The average mileage at this age is 55,355 miles.
How does the 2018 MERCEDES GLE compare?
Mileage Analysis
The average 2018 MERCEDES GLE has 55,355 miles on the clock, which is above the expected 44,400 miles for a 6-year-old car. Higher-mileage cars often have more motorway miles, which is generally less harmful than stop-start urban driving.
Best year to buy a MERCEDES GLE?
The most reliable year is the 2022 model with a 95% MOT pass rate, while the 2017 model has the lowest at 91%. The 2018 sits between the two at 91%.
How much does a 2018 MERCEDES GLE 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 GLE by Year
Checking a specific MERCEDES GLE?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2018 MERCEDES GLE
The 2018 MERCEDES GLE is a large car with a 2987cc diesel engine. 13,420 of these vehicles were MOT tested in 2024, making it one of the most commonly tested cars on UK roads. Among all cars from 2018, the average MOT pass rate is 89%, and this model beats that benchmark.
With an average of 55,355 miles at 6 years old, MERCEDES GLE owners cover more miles than the average driver.
2018 MERCEDES GLE 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 2018 MERCEDES GLE?
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 91% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
MERCEDES GLE Reliability Trend
The MERCEDES GLE has maintained consistent MOT pass rates across model years, varying by only 2 percentage points.
Buying a Used 2018 MERCEDES GLE
At 6 years old, the MERCEDES GLE offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost. If you're flexible on year, the 2022 model has the highest pass rate at 95%. With 13,420 MOT tests in our data, there's strong statistical confidence in these figures.
Alternatives to the 2018 MERCEDES GLE
The MERCEDES GLE 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 (-1%) from 41,000 tests
- MERCEDES GLC (2018) 91% pass rate (same) from 40,494 tests
- AUDI A5 (2017) 89% pass rate (-2%) from 33,531 tests
- FORD RANGER (2019) 87% pass rate (-4%) from 32,194 tests