Audi 90 (1991)

Estimated running costs and MOT pass rates from 70 MOT tests in 2024.

Annual Cost

£2,588

£216/month

MOT Pass Rate

90%

Excellent

Road Tax

£375

Estimated/year

Est. Insurance

Grp 25-38

2309cc Petrol

Great Choice

90% pass rate, £2,588/year to run. 8 points above average.

Buying this car? Check for finance, write-offs & theft

£4.99

Check a specific Audi 90

Enter a reg plate for full MOT history, mileage check, health score, running costs, and reliability data. Free, instant, no signup.

Petrol2309cc35 years old70 tests111k miles avg

Annual Running Costs

Fuel (Petrol, 2309cc)

~30 mpg

£1,958

Road Tax

Pre-2001 engine size rate

£375

MOT Test

£55

Predicted Repairs

Low estimate due to excellent reliability

£200

Total per year£2,588

Per month£216/mo

Per week£50/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

90% MOT pass rate(Excellent)

0%All-model avg: 82%100%

Excellent reliability. Very few MOT failures. That's 8 points above the average of 82% across all models in our data.

90% of MOT tests on Audi 90s from 1991 ended in a pass in 2024, when they were about 33 years old. That's based on 70 tests across the UK, retests included. The average mileage recorded at those tests was 110,737 miles.

Got a Audi 90 you're looking at?

Enter the reg plate to check its specific MOT history, mileage, and health score.

How Does It Compare?

Rank among 1991 models31st of 172(top 19%)

Rank among Audi models710th of 1,066(bottom half)

vs average of all models+8%(82% avg)

vs 1991 models average+11%(79% avg)

vs Audi average+0%(90% avg)

Mileage Analysis

110,737

Average miles

244,200

Expected for age

The average 1991 Audi 90 had 110,737 miles on the clock at its 2024 MOT, which is significantly below the expected 244,200 miles for a 33-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.

Looking at a specific Audi 90?

Enter its reg plate for a free check with full MOT history, mileage verification, and predicted costs.

Audi 90 by Year

Year	Pass Rate	Tests	Avg Mileage
1991	90%	70	110,737 mi
1990	84%	105	124,161 mi

Similar Cars to Consider

BMW 3 Series

1990 · 1990cc Petrol

£2,411/year

84%

-6%

Mercedes 190 E

1992 · 1997cc Petrol

£2,561/year

79%

-11%

Saab 900

1993 · 1985cc Petrol

£2,561/year

73%

-17%

Ford Escort

1993 · 1993cc Petrol

£2,411/year

83%

-7%

Check a Specific Audi 90

Enter a reg plate to get the full MOT history, health score, and mileage verification.

Upgrade to Premium (£4.99) for stolen, finance, and write-off checks.

About the 1991 Audi 90

The 1991 Audi 90 is a premium car. Our records list a 2309cc petrol engine, though engines vary between versions. 70 MOT tests were recorded on this model in 2024, making it a rare model on UK roads. It ranks in the top 19% of all 1991 models for MOT pass rate.

With an average of 110,737 miles recorded at its 2024 MOT tests, Audi 90 owners tend to use this car less than the typical driver. Very low mileage could mean the car has been garaged or used only for short trips, which can cause its own issues like battery drain and moisture buildup.

1991 Audi 90 Fuel Costs

The 2309cc petrol engine offers a reasonable balance between performance and economy. 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 1991 Audi 90?

Total estimated annual running cost is £2,588 (£216/month), broken down as £1,958 fuel, £375 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 90% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

Buying a Used 1991 Audi 90

At 35 years old, the Audi 90 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. Note: with only 70 tests in our data, these figures should be treated as indicative rather than definitive.

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 35 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 111k 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 1991 Audi 90 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 90(1991)	90%	£1,958	£375	Grp 25-38	£2,588
BMW 3 Series(1990)	84%	£1,631	£375	Grp 18-32	£2,411-£177
Mercedes 190 E(1992)	79%	£1,631	£375	Grp 18-32	£2,561-£27
Saab 900(1993)	73%	£1,631	£375	Grp 18-32	£2,561-£27
Ford Escort(1993)	83%	£1,631	£375	Grp 18-32	£2,411-£177

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 1991 Audi 90

Is the 1991 Audi 90 reliable?

Excellent reliability. Very few MOT failures. 90% of MOT tests on 1991 Audi 90s ended in a pass, from 70 tests (DVSA MOT data for tests in 2024, retests included). That's 8 points above the average of 82% across all models in the same data.

How much does a 1991 Audi 90 cost to run?

Our estimate is £2,588 a year (£216 a month): £1,958 fuel, £375 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 1991 Audi 90?

90% of 70 MOT tests on the 1991 Audi 90 ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 31st of 172 models first registered in 1991 (top 19%).

What is the average mileage for a 1991 Audi 90?

The average mileage recorded at MOT tests on the 1991 Audi 90 is 110,737 miles, which is significantly below the expected 244,200 miles for a 33-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.