How much does a 2003 AUDI RS6 cost to run?

Estimated annual running cost is £2,757 (£230/month), including £1592 fuel, £760 road tax, £55 MOT, and £350 predicted repairs.

What is the MOT pass rate for a 2003 AUDI RS6?

The 2003 AUDI RS6 has a 86% MOT pass rate based on 181 tests in 2026. This ranks 46 out of 445 cars from 2003.

Which year AUDI RS6 is most reliable?

The 2014 AUDI RS6 has the highest MOT pass rate at 92%. The least reliable year is 2003 at 86%.

AUDI RS6 (2003)

Q: Is the 2003 AUDI RS6 reliable?

Good reliability. Occasional issues but generally solid. 86% of AUDI RS6s from 2003 passed their MOT first time in 2026, based on 181 tests. That's 4 points above the national average of 82%.

Q: What is the average mileage for a 2003 AUDI RS6?

The average mileage for a 2003 AUDI RS6 is 118,951 miles, which is below the expected 170,200 miles for a 23-year-old car. This suggests lighter use than average, which generally means less wear on major components.

Running costs, reliability data, and common problems from 181 real MOT tests.

Annual Cost

£2,757

£230/month

MOT Pass Rate

86%

Good

Road Tax

£760

Based on CC/year

Insurance

Grp 35-50

4172cc Petrol

Solid Option

86% pass rate, £2757/year to run. Close to the national average.

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Petrol4172cc23 years old181 tests119k miles avg

Annual Running Costs

Fuel (Petrol, 4172cc)

~30 mpg

£1,592

Road Tax

Based on 4172cc

£760

MOT Test

£55

Predicted Repairs

£350

Total per year£2,757

Per month£230/mo

Per week£53/wk

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

86% MOT pass rate(Good)

0%National avg: 82%100%

Good reliability. Occasional issues but generally solid. That's close to the national average of 82%. It falls below the AUDI brand average of 90%.

At 23 years old, 86% of AUDI RS6s from 2003 passed their MOT first time in 2026. That's based on 181 tests across the UK. The average mileage at this age is 118,951 miles.

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How Does It Compare?

Rank among 2003 cars46th of 445(top 10%)

Rank among AUDI models853th of 1,079(top 79%)

vs national average+4%(82% avg)

vs 2003 cars average+14%(72% avg)

vs AUDI average-4%(90% avg)

Mileage Analysis

118,951

Average miles

170,200

Expected for age

The average 2003 AUDI RS6 has 118,951 miles on the clock, which is below the expected 170,200 miles for a 23-year-old car. This suggests lighter use than average, which generally means less wear on major components.

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Best Year to Buy?

The most reliable year is the 2014 model with a 92% MOT pass rate, while the 2003 model has the lowest at 86%. Consider a different year if reliability is a priority.

AUDI RS6 by Year

Year	Pass Rate	Tests	Avg Mileage
2017	100%	33	40,061 mi
2016	96%	49	59,971 mi
2015	96%	49	58,586 mi
2014	92%	420	77,846 mi
2013	92%	238	76,510 mi
2010	97%	38	84,258 mi
2009	92%	186	97,001 mi
2008	92%	369	98,694 mi
2004	87%	106	99,318 mi
2003	86%	181	118,951 mi

Similar Cars to Consider

LAND ROVER RANGE ROVER SPORT

2005 · 4394cc Petrol

£2,247/year

82%

-4%

PORSCHE 911

2005 · 3824cc Petrol

£2,097/year

90%

+4%

LAND ROVER RANGE ROVER

2003 · 3950cc Petrol

£2,397/year

77%

-9%

ROVER 75

2004 · 4601cc Petrol

£2,597/year

69%

-17%

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About the 2003 AUDI RS6

The 2003 AUDI RS6 is a premium performance with a 4172cc petrol engine. 181 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It ranks in the top 10% of all 2003 cars for reliability.

With an average of 118,951 miles at 23 years old, AUDI RS6 owners tend to use this car less than the typical driver.

2003 AUDI RS6 Fuel Costs

The 4172cc 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 2003 AUDI RS6?

Total estimated annual running cost is £2,757 (£230/month), broken down as £1592 fuel, £760 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 86% pass rate. Keeping on top of servicing will help avoid surprises.

AUDI RS6 Reliability Trend

Newer AUDI RS6s show better MOT pass rates than older ones, with an average improvement of 4 percentage points.

Buying a Used 2003 AUDI RS6

At 23 years old, the AUDI RS6 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.

Common Issues to Watch For

Based on the 2003 AUDI RS6's fuel type, age, and engine size, these are the most likely problem areas to check.

Timing Chain / Belt

Watch out

At 23 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

Watch out

With an average of 119k 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 2003 AUDI RS6 stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
AUDI RS6(2003)	86%	£1592	£760	Grp 35-50	£2757
LAND ROVER RANGE ROVER SPORT(2005)	82%	£1592	£250	Grp 35-50	£2247-£510
PORSCHE 911(2005)	90%	£1592	£250	Grp 35-50	£2097-£660
LAND ROVER RANGE ROVER(2003)	77%	£1592	£250	Grp 35-50	£2397-£360
ROVER 75(2004)	69%	£1592	£250	Grp 35-50	£2597-£160

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.