MERCEDES GL (2008)
Running costs, common problems, and reliability data based on 371 real MOT tests in 2024.
MOT Pass Rate
84%
Total Tests (2024)
371
Avg Mileage
122,229 mi
Est. Annual Cost
£1,900
Is the 2008 MERCEDES GL reliable?
Good reliability. Occasional issues but generally solid. That's close to the national average of 82%.
At 16 years old, 84% of MERCEDES GLs from 2008 passed their MOT first time in 2024. That's based on 371 tests across the UK. The average mileage at this age is 122,229 miles.
How does the 2008 MERCEDES GL compare?
Mileage Analysis
The average 2008 MERCEDES GL has 122,229 miles on the clock, which is in line with the expected 118,400 miles for a 16-year-old car, suggesting normal everyday use.
Best year to buy a MERCEDES GL?
The most reliable year is the 2020 model with a 100% MOT pass rate, while the 2006 model has the lowest at 78%. The 2008 sits between the two at 84%.
How much does a 2008 MERCEDES GL 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 GL by Year
| Year | Pass Rate | Tests | Avg Mileage |
|---|---|---|---|
| 2021 | 99% | 71 | 29,185 mi |
| 2020 | 100% | 69 | 41,984 mi |
| 2019 | 93% | 137 | 35,018 mi |
| 2018 | 95% | 63 | 38,524 mi |
| 2017 | 79% | 47 | 108,751 mi |
| 2016 | 88% | 475 | 73,156 mi |
| 2015 | 89% | 1,283 | 79,394 mi |
| 2014 | 92% | 1,321 | 93,766 mi |
| 2013 | 90% | 1,304 | 103,757 mi |
| 2012 | 89% | 225 | 99,410 mi |
| 2011 | 86% | 609 | 116,582 mi |
| 2010 | 89% | 435 | 121,550 mi |
| 2009 | 81% | 224 | 126,000 mi |
| 2008 | 84% | 371 | 122,229 mi |
| 2007 | 85% | 572 | 130,779 mi |
| 2006 | 78% | 160 | 123,042 mi |
Checking a specific MERCEDES GL?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2008 MERCEDES GL
The 2008 MERCEDES GL is a large car with a 3000cc diesel engine. 371 of these vehicles were MOT tested in 2024, making it a less common model in the UK market. It ranks in the top 23% of all 2008 cars for reliability.
With an average of 122,229 miles at 16 years old, MERCEDES GL owners drive about as much as the UK average.
2008 MERCEDES GL Fuel Costs
The 3000cc 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 2008 MERCEDES GL?
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 84% pass rate. Keeping on top of servicing will help avoid surprises.
MERCEDES GL Reliability Trend
Newer MERCEDES GLs show better MOT pass rates than older ones, with an average improvement of 9 percentage points.
Buying a Used 2008 MERCEDES GL
At 16 years old, the MERCEDES GL is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age. If you're flexible on year, the 2020 model has the highest pass rate at 100%.
Alternatives to the 2008 MERCEDES GL
The MERCEDES GL is actually the most reliable option among similar diesel large cars from this era. Here are comparable diesel cars with similar engines:
- BMW 3 SERIES (2008) 80% pass rate (-4%) from 48,705 tests
- AUDI A5 (2010) 82% pass rate (-2%) from 22,181 tests
- JAGUAR XF (2010) 80% pass rate (-4%) from 19,704 tests
- AUDI TT (2008) 81% pass rate (-3%) from 16,046 tests