AUDI RS4 (2015)
Running costs, reliability data, and common problems from 37 real MOT tests.
Annual Cost
£2,607
£217/month
MOT Pass Rate
95%
Excellent
Road Tax
£760
Based on CC/year
Insurance
Grp 35-50
4163cc Petrol
Great Choice
95% pass rate, £2607/year to run. 13 points above average.
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Annual Running Costs
~30 mpg
Based on 4163cc
Low estimate due to excellent reliability
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.
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Reliability Verdict
Excellent reliability. Very few MOT failures. That's 13 points above the national average of 82%. It also outperforms the AUDI brand average of 90%.
At 11 years old, 95% of AUDI RS4s from 2015 passed their MOT first time in 2026. That's based on 37 tests across the UK. The average mileage at this age is 74,001 miles.
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How Does It Compare?
Mileage Analysis
74,001
Average miles
81,400
Expected for age
The average 2015 AUDI RS4 has 74,001 miles on the clock, which is in line with the expected 81,400 miles for a 11-year-old car, suggesting normal everyday use.
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Best Year to Buy?
The most reliable year is the 2013 model with a 93% MOT pass rate, while the 2008 model has the lowest at 82%. The 2015 sits between the two at 95%.
AUDI RS4 by Year
Similar Cars to Consider
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About the 2015 AUDI RS4
The 2015 AUDI RS4 is a premium performance with a 4163cc petrol engine. 37 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It ranks in the top 14% of all 2015 cars for reliability.
With an average of 74,001 miles at 11 years old, AUDI RS4 owners drive about as much as the UK average.
2015 AUDI RS4 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 2015 AUDI RS4?
Total estimated annual running cost is £2,607 (£217/month), broken down as £1592 fuel, £760 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 95% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
AUDI RS4 Reliability Trend
The AUDI RS4 has maintained consistent MOT pass rates across model years, varying by only 3 percentage points.
Buying a Used 2015 AUDI RS4
At 11 years old, the AUDI RS4 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 2013 model has the highest pass rate at 93%. Note: with only 37 tests in our data, these figures should be treated as indicative rather than definitive.
Common Issues to Watch For
Based on the 2015 AUDI RS4's fuel type, age, and engine size, these are the most likely problem areas to check.
Timing Chain / Belt
Watch outAt 11 years old, check whether the timing belt has been replaced (typically due every 5-7 years or 60,000-100,000 miles). A snapped belt can destroy the engine.
Oil Consumption
Medium riskLarger petrol engines can develop higher oil consumption as they age. Check the oil level and look for blue smoke from the exhaust.
Rust and Corrosion
Watch outAt 10+ years, check wheel arches, sills, subframe, and brake lines for rust. Structural corrosion is an MOT failure. Prevention is far cheaper than repair.
Suspension Bushings
Watch outRubber suspension bushes harden and crack with age, causing knocking noises and vague handling. A full refresh costs £300-£800 depending on the car.
Service History
Low riskAlways request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.
Running Costs Compared
How the 2015 AUDI RS4 stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| AUDI RS4(2015) | 95% | £1592 | £760 | Grp 35-50 | £2607 |
| MERCEDES C(2016) | 88% | £1592 | £250 | Grp 35-50 | £2247-£360 |
| AUDI A6(2016) | 89% | £1592 | £250 | Grp 35-50 | £2247-£360 |
| PORSCHE 911(2017) | 97% | £1592 | £190 | Grp 35-50 | £2037-£570 |
| BMW X6(2017) | 92% | £1592 | £190 | Grp 35-50 | £2037-£570 |
Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.
Related Audi Models
Explore other Audi cars or similar models in the same category.
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MERCEDES C
2016 · 3982cc Petrol
AUDI A6
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PORSCHE 911
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