Audi S4 (2009)

Estimated running costs and MOT pass rates from 216 MOT tests in 2024.

Annual Cost

£2,658

£222/month

MOT Pass Rate

91%

Excellent

Road Tax

£445

Estimated/year

Est. Insurance

Grp 30-42

2995cc Petrol

Great Choice

91% pass rate, £2,658/year to run. 9 points above average.

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Petrol2995cc17 years old216 tests92k miles avg

Annual Running Costs

Fuel (Petrol, 2995cc)

~30 mpg

£1,958

Road Tax

Estimated CO2 band

£445

MOT Test

£55

Predicted Repairs

Low estimate due to excellent reliability

£200

Total per year£2,658

Per month£222/mo

Per week£51/wk

Estimates based on 7,400 miles/year (UK average), petrol at 174.57p a litre (GOV.UK weekly average, week of 19 October 2026), GOV.UK road tax rates and repair likelihood from MOT data. Insurance not included.

Reliability Verdict

91% MOT pass rate(Excellent)

0%All-model avg: 82%100%

Excellent reliability. Very few MOT failures. That's 9 points above the average of 82% across all models in our data.

91% of MOT tests on Audi S4s from 2009 ended in a pass in 2024, when they were about 15 years old. That's based on 216 tests across the UK, retests included. The average mileage recorded at those tests was 92,422 miles.

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How Does It Compare?

Rank among 2009 models52nd of 555(top 10%)

Rank among Audi models637th of 1,066(bottom half)

vs average of all models+9%(82% avg)

vs 2009 models average+17%(74% avg)

vs Audi average+1%(90% avg)

Mileage Analysis

92,422

Average miles

111,000

Expected for age

The average 2009 Audi S4 had 92,422 miles on the clock at its 2024 MOT, which is in line with the expected 111,000 miles for a 15-year-old car, suggesting normal everyday use.

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Best Year to Buy?

Of the years with at least 100 tests, the 2013 model has the highest MOT pass rate at 94%, while the 2006 model has the lowest at 78%. The 2009 scores 91%. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.

Audi S4 by Year

Year	Pass Rate	Tests	Avg Mileage
2017	94%	69	57,456 mi
2015	92%	39	65,685 mi
2014	86%	170	83,424 mi
2013	94%	189	90,972 mi
2012	92%	78	82,804 mi
2011	87%	277	94,642 mi
2010	90%	277	101,140 mi
2009	91%	216	92,422 mi
2007	82%	126	83,877 mi
2006	78%	263	110,513 mi
2005	80%	169	99,307 mi
2004	81%	202	99,762 mi
2000	85%	59	152,811 mi
1999	85%	142	161,691 mi

Similar Cars to Consider

Vauxhall Insignia

2011 · 2792cc Petrol

£2,958/year

77%

-14%

Land Rover Freelander

2007 · 3192cc Petrol

£3,303/year

75%

-16%

Mercedes E

2010 · 3495cc Petrol

£3,153/year

80%

-11%

Saab 9-3

2007 · 2792cc Petrol

£2,958/year

76%

-15%

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About the 2009 Audi S4

The 2009 Audi S4 is a premium performance car. Our records list a 2995cc petrol engine, though engines vary between versions. 216 MOT tests were recorded on this model in 2024, making it a less common model in the UK market. It ranks in the top 10% of all 2009 models for MOT pass rate.

With an average of 92,422 miles recorded at its 2024 MOT tests, Audi S4 owners drive about as much as the UK average.

2009 Audi S4 Fuel Costs

The 2995cc 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 £1,958 per year with petrol at 174.57p per litre (GOV.UK weekly average, week of 19 October 2026; based on 7,400 miles per year).

What does it cost to own a 2009 Audi S4?

Total estimated annual running cost is £2,658 (£222/month), broken down as £1,958 fuel, £445 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.

Audi S4 Reliability Trend

Newer Audi S4s pass their MOT more often than older ones, by 8 percentage points on average, which is mostly down to age and wear.

Buying a Used 2009 Audi S4

At 17 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. If you're flexible on year, the 2013 model has the highest pass rate at 94%.

Common Issues to Watch For

These are typical issues for cars of this age, fuel type and engine size, not faults recorded on this model's MOT tests. Use them as a checklist when you view one.

Timing Chain / Belt

Watch out

At 17 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 risk

Larger 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 out

At 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 out

Rubber suspension bushes harden and crack with age, causing knocking noises and vague handling. A full refresh costs £300-£800 depending on the car.

Clutch Wear

Medium risk

With an average of 92k miles, clutch replacement may be due (typical lifespan 60,000-100,000 miles). Budget £400-£800 for a new clutch kit.

Brake Discs and Pads

Medium risk

High-mileage cars often need brake disc replacement, not just pads. A full set of discs and pads costs £200-£500 per axle.

Service History

Low risk

Always 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 2009 Audi S4 stacks up against similar cars for estimated annual running costs, insurance group, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Est. Ins. Group	Total/yr
Audi S4(2009)	91%	£1,958	£445	Grp 30-42	£2,658
Vauxhall Insignia(2011)	77%	£1,958	£445	Grp 30-42	£2,958+£300
Land Rover Freelander(2007)	75%	£1,958	£790	Grp 35-50	£3,303+£645
Mercedes E(2010)	80%	£1,958	£790	Grp 35-50	£3,153+£495
Saab 9-3(2007)	76%	£1,958	£445	Grp 30-42	£2,958+£300

Estimates based on 7,400 miles/year, GOV.UK average pump prices for the week of 19 October 2026, GOV.UK road tax rates and MOT data. Insurance groups are our rough estimate from engine size, not official groups. Actual costs vary by driver, location, and usage.

Questions about the 2009 Audi S4

Is the 2009 Audi S4 reliable?

Excellent reliability. Very few MOT failures. 91% of MOT tests on 2009 Audi S4s ended in a pass, from 216 tests (DVSA MOT data for tests in 2024, retests included). That's 9 points above the average of 82% across all models in the same data.

How much does a 2009 Audi S4 cost to run?

Our estimate is £2,658 a year (£222 a month): £1,958 fuel, £445 road tax, £55 MOT and £200 predicted repairs, based on 7,400 miles a year. Insurance is not included.

What is the MOT pass rate for a 2009 Audi S4?

91% of 216 MOT tests on the 2009 Audi S4 ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 52nd of 555 models first registered in 2009 (top 10%).

Which year Audi S4 has the best MOT pass rate?

Of the years with at least 100 tests, the 2013 Audi S4 has the highest MOT pass rate at 94% and the 2006 the lowest at 78%. Newer cars usually pass more often simply because they are younger and have done fewer miles.

What is the average mileage for a 2009 Audi S4?

The average mileage recorded at MOT tests on the 2009 Audi S4 is 92,422 miles, which is in line with the expected 111,000 miles for a 15-year-old car, suggesting normal everyday use.