AUDI A8 (2008)
Running costs, common problems, and reliability data based on 1,332 real MOT tests in 2024.
MOT Pass Rate
87%
Total Tests (2024)
1,332
Avg Mileage
140,305 mi
Est. Annual Cost
£1,900
Is the 2008 AUDI A8 reliable?
Good reliability. Occasional issues but generally solid. That's close to the national average of 82%.
At 16 years old, 87% of AUDI A8s from 2008 passed their MOT first time in 2024. That's based on 1,332 tests across the UK. The average mileage at this age is 140,305 miles.
How does the 2008 AUDI A8 compare?
Mileage Analysis
The average 2008 AUDI A8 has 140,305 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 AUDI A8?
The most reliable year is the 2021 model with a 98% MOT pass rate, while the 2000 model has the lowest at 77%. The 2008 sits between the two at 87%.
How much does a 2008 AUDI A8 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.
AUDI A8 by Year
| Year | Pass Rate | Tests | Avg Mileage |
|---|---|---|---|
| 2021 | 98% | 170 | 35,071 mi |
| 2020 | 96% | 599 | 39,317 mi |
| 2019 | 95% | 1,932 | 50,413 mi |
| 2018 | 95% | 2,387 | 59,736 mi |
| 2017 | 95% | 1,392 | 72,207 mi |
| 2016 | 94% | 1,876 | 80,025 mi |
| 2015 | 93% | 2,300 | 85,475 mi |
| 2014 | 94% | 1,889 | 98,201 mi |
| 2013 | 91% | 1,562 | 108,280 mi |
| 2012 | 92% | 1,468 | 113,405 mi |
| 2011 | 93% | 1,392 | 120,960 mi |
| 2010 | 87% | 933 | 124,272 mi |
| 2009 | 89% | 735 | 138,957 mi |
| 2008 | 87% | 1,332 | 140,305 mi |
| 2007 | 86% | 1,124 | 147,303 mi |
| 2006 | 85% | 748 | 146,966 mi |
| 2005 | 87% | 661 | 142,434 mi |
| 2004 | 80% | 349 | 134,086 mi |
| 2003 | 84% | 223 | 134,224 mi |
| 2002 | 84% | 166 | 137,356 mi |
| 2001 | 85% | 157 | 141,044 mi |
| 2000 | 77% | 104 | 143,697 mi |
| 1999 | 80% | 192 | 140,354 mi |
| 1998 | 80% | 122 | 136,028 mi |
| 1997 | 79% | 115 | 131,393 mi |
| 1996 | 74% | 31 | 135,336 mi |
Checking a specific AUDI A8?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2008 AUDI A8
The 2008 AUDI A8 is a premium performance with a 2967cc diesel engine. 1,332 of these vehicles were MOT tested in 2024, making it a reasonably common sight on UK roads. It ranks in the top 16% of all 2008 cars for reliability.
With an average of 140,305 miles at 16 years old, AUDI A8 owners drive about as much as the UK average.
2008 AUDI A8 Fuel Costs
The 2967cc 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 AUDI A8?
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 87% pass rate. Keeping on top of servicing will help avoid surprises.
AUDI A8 Reliability Trend
Newer AUDI A8s show better MOT pass rates than older ones, with an average improvement of 10 percentage points.
Buying a Used 2008 AUDI A8
At 16 years old, the AUDI A8 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 2021 model has the highest pass rate at 98%.
Alternatives to the 2008 AUDI A8
The AUDI A8 is actually the most reliable option among similar diesel premium performances from this era. Here are comparable diesel cars with similar engines:
- BMW 3 SERIES (2008) 80% pass rate (-7%) from 48,705 tests
- AUDI A5 (2010) 82% pass rate (-5%) from 22,181 tests
- JAGUAR XF (2010) 80% pass rate (-7%) from 19,704 tests
- LAND ROVER DISCOVERY (2006) 78% pass rate (-9%) from 17,245 tests