AUDI S4 (2006)
Running costs, common problems, and reliability data based on 263 real MOT tests in 2024.
MOT Pass Rate
78%
Total Tests (2024)
263
Avg Mileage
110,513 mi
Est. Annual Cost
£2,397
Is the 2006 AUDI S4 reliable?
Average reliability. Expect some repairs as it ages. That's close to the national average of 82%. It falls below the AUDI brand average of 90%.
At 18 years old, 78% of AUDI S4s from 2006 passed their MOT first time in 2024. That's based on 263 tests across the UK. The average mileage at this age is 110,513 miles.
How does the 2006 AUDI S4 compare?
Mileage Analysis
The average 2006 AUDI S4 has 110,513 miles on the clock, which is in line with the expected 133,200 miles for a 18-year-old car, suggesting normal everyday use.
Best year to buy a AUDI S4?
The most reliable year is the 2013 model with a 94% MOT pass rate, while the 2006 model has the lowest at 78%. Consider a different year if reliability is a priority.
How much does a 2006 AUDI S4 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 S4 by Year
Checking a specific AUDI S4?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2006 AUDI S4
The 2006 AUDI S4 is a premium performance with a 4163cc petrol engine. 263 of these vehicles were MOT tested in 2024, making it a less common model in the UK market. Among all cars from 2006, the average MOT pass rate is 73%, and this model beats that benchmark.
With an average of 110,513 miles at 18 years old, AUDI S4 owners drive about as much as the UK average.
2006 AUDI S4 Fuel Costs
The 4163cc petrol engine is on the larger side, so fuel won't be this car's strong point. Expect around 30 mpg in mixed driving, which works out to roughly £1,592 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 2006 AUDI S4?
Total estimated annual running cost is £2,397 (£200/month), broken down as £1592 fuel, £250 road tax, £55 MOT, and £500 predicted repairs. Repair costs are moderate, reflecting the 78% pass rate. Keeping on top of servicing will help avoid surprises.
AUDI S4 Reliability Trend
Newer AUDI S4s show better MOT pass rates than older ones, with an average improvement of 9 percentage points.
Buying a Used 2006 AUDI S4
At 18 years old, the AUDI S4 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.
Alternatives to the 2006 AUDI S4
If reliability is your priority, there are 3 similar cars with a higher MOT pass rate. Here are comparable petrol cars with similar engines:
- JAGUAR XF (2008) 78% pass rate (same) from 12,062 tests
- LAND ROVER RANGE ROVER (2006) 80% pass rate (+2%) from 8,231 tests
- LAND ROVER RANGE ROVER SPORT (2005) 82% pass rate (+4%) from 8,058 tests
- PORSCHE 911 (2006) 90% pass rate (+12%) from 6,184 tests