How much does a 1999 AUDI A8 cost to run?

Estimated annual running cost is £2,427 (£202/month), including £1592 fuel, £430 road tax, £55 MOT, and £350 predicted repairs.

What is the MOT pass rate for a 1999 AUDI A8?

The 1999 AUDI A8 has a 80% MOT pass rate based on 192 tests in 2026. This ranks 119 out of 375 cars from 1999.

Which year AUDI A8 is most reliable?

The 2021 AUDI A8 has the highest MOT pass rate at 98%. The least reliable year is 2000 at 77%.

AUDI A8 (1999)

Q: Is the 1999 AUDI A8 reliable?

Good reliability. Occasional issues but generally solid. 80% of AUDI A8s from 1999 passed their MOT first time in 2026, based on 192 tests. That's 2 points below the national average of 82%.

Q: What is the average mileage for a 1999 AUDI A8?

The average mileage for a 1999 AUDI A8 is 140,354 miles, which is below the expected 199,800 miles for a 27-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 192 real MOT tests.

Annual Cost

£2,427

£202/month

MOT Pass Rate

80%

Good

Road Tax

£430

Based on CC/year

Insurance

Grp 30-42

2771cc Petrol

Solid Option

80% pass rate, £2427/year to run. Close to the national average.

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Petrol2771cc27 years old192 tests140k miles avg

Annual Running Costs

Fuel (Petrol, 2771cc)

~30 mpg

£1,592

Road Tax

Based on 2771cc

£430

MOT Test

£55

Predicted Repairs

£350

Total per year£2,427

Per month£202/mo

Per week£47/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

80% 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 27 years old, 80% of AUDI A8s from 1999 passed their MOT first time in 2026. That's based on 192 tests across the UK. The average mileage at this age is 140,354 miles.

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How Does It Compare?

Rank among 1999 cars119th of 375(top 32%)

Rank among AUDI models968th of 1,079(top 90%)

vs national average-2%(82% avg)

vs 1999 cars average+5%(75% avg)

vs AUDI average-10%(90% avg)

Mileage Analysis

140,354

Average miles

199,800

Expected for age

The average 1999 AUDI A8 has 140,354 miles on the clock, which is below the expected 199,800 miles for a 27-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 2021 model with a 98% MOT pass rate, while the 2000 model has the lowest at 77%. The 1999 sits between the two at 80%.

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

Similar Cars to Consider

BMW 3 SERIES

2001 · 3000cc Petrol

£2,397/year

77%

-3%

BMW Z3

1999 · 3201cc Petrol

£2,397/year

78%

-2%

MERCEDES SLK

1999 · 2298cc Petrol

£2,397/year

79%

-1%

PORSCHE BOXSTER

2001 · 3200cc Petrol

£2,247/year

83%

+3%

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About the 1999 AUDI A8

The 1999 AUDI A8 is a premium performance with a 2771cc petrol engine. 192 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. Among all cars from 1999, the average MOT pass rate is 75%, and this model beats that benchmark.

With an average of 140,354 miles at 27 years old, AUDI A8 owners tend to use this car less than the typical driver.

1999 AUDI A8 Fuel Costs

The 2771cc 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 1999 AUDI A8?

Total estimated annual running cost is £2,427 (£202/month), broken down as £1592 fuel, £430 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 80% 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 1999 AUDI A8

At 27 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%.

Common Issues to Watch For

Based on the 1999 AUDI A8's fuel type, age, and engine size, these are the most likely problem areas to check.

Timing Chain / Belt

Watch out

At 27 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 140k 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.

Engine Mounts

Medium risk

Worn engine mounts cause excessive vibration and movement. Replacement costs £150-£400 per mount. Check for vibration at idle with the bonnet open.

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 1999 AUDI A8 stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
AUDI A8(1999)	80%	£1592	£430	Grp 30-42	£2427
BMW 3 SERIES(2001)	77%	£1592	£250	Grp 30-42	£2397-£30
BMW Z3(1999)	78%	£1592	£250	Grp 35-50	£2397-£30
MERCEDES SLK(1999)	79%	£1592	£250	Grp 25-38	£2397-£30
PORSCHE BOXSTER(2001)	83%	£1592	£250	Grp 35-50	£2247-£180

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.