Is the 1994 BMW 840 reliable?

Average reliability. Expect some repairs as it ages. 74% of BMW 840s from 1994 passed their MOT first time in 2026, based on 182 tests. That's 8 points below the national average of 82%.

How much does a 1994 BMW 840 cost to run?

Estimated annual running cost is £2,907 (£242/month), including £1592 fuel, £760 road tax, £55 MOT, and £500 predicted repairs.

What is the MOT pass rate for a 1994 BMW 840?

The 1994 BMW 840 has a 74% MOT pass rate based on 182 tests in 2026. This ranks 133 out of 212 cars from 1994.

Which year BMW 840 is most reliable?

The 2019 BMW 840 has the highest MOT pass rate at 100%. The least reliable year is 1994 at 74%.

BMW 840 (1994)

Q: What is the average mileage for a 1994 BMW 840?

The average mileage for a 1994 BMW 840 is 110,577 miles, which is significantly below the expected 236,800 miles for a 32-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.

Running costs, reliability data, and common problems from 182 real MOT tests.

Annual Cost

£2,907

£242/month

MOT Pass Rate

74%

Average

Road Tax

£760

Based on CC/year

Insurance

Grp 35-50

3982cc Petrol

Check Carefully

74% pass rate, £2907/year to run. 8 points below average.

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Petrol3982cc32 years old182 tests111k miles avg

Annual Running Costs

Fuel (Petrol, 3982cc)

~30 mpg

£1,592

Road Tax

Based on 3982cc

£760

MOT Test

£55

Predicted Repairs

Higher estimate due to low pass rate

£500

Total per year£2,907

Per month£242/mo

Per week£56/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

74% MOT pass rate(Average)

0%National avg: 82%100%

Average reliability. Expect some repairs as it ages. That's 8 points below the national average of 82%. It falls below the BMW brand average of 88%.

At 32 years old, 74% of BMW 840s from 1994 passed their MOT first time in 2026. That's based on 182 tests across the UK. The average mileage at this age is 110,577 miles.

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How Does It Compare?

Rank among 1994 cars133th of 212(top 63%)

Rank among BMW models1510th of 1,564(top 97%)

vs national average-8%(82% avg)

vs 1994 cars average-2%(76% avg)

vs BMW average-14%(88% avg)

Mileage Analysis

110,577

Average miles

236,800

Expected for age

The average 1994 BMW 840 has 110,577 miles on the clock, which is significantly below the expected 236,800 miles for a 32-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.

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Best Year to Buy?

The most reliable year is the 2019 model with a 100% MOT pass rate, while the 1994 model has the lowest at 74%. Consider a different year if reliability is a priority.

BMW 840 by Year

Year	Pass Rate	Tests	Avg Mileage
2019	100%	52	42,498 mi
1999	89%	309	100,587 mi
1998	87%	417	98,779 mi
1997	89%	567	114,610 mi
1996	82%	266	110,739 mi
1995	79%	384	120,572 mi
1994	74%	182	110,577 mi

Similar Cars to Consider

PORSCHE 911

1996 · 3600cc Petrol

£2,097/year

91%

+17%

MERCEDES E

1995 · 3606cc Petrol

£2,397/year

79%

+5%

LAND ROVER RANGE ROVER

1996 · 3950cc Petrol

£2,247/year

80%

+6%

JAGUAR XJS

1995 · 4000cc Petrol

£2,247/year

89%

+15%

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About the 1994 BMW 840

The 1994 BMW 840 is a premium performance with a 3982cc petrol engine. 182 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. Among all cars from 1994, the average MOT pass rate is 76%, and this model falls short of that benchmark.

With an average of 110,577 miles at 32 years old, BMW 840 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.

1994 BMW 840 Fuel Costs

The 3982cc 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 1994 BMW 840?

Total estimated annual running cost is £2,907 (£242/month), broken down as £1592 fuel, £760 road tax, £55 MOT, and £500 predicted repairs. Repair costs are moderate, reflecting the 74% pass rate. Keeping on top of servicing will help avoid surprises.

BMW 840 Reliability Trend

Newer BMW 840s show better MOT pass rates than older ones, with an average improvement of 13 percentage points.

Buying a Used 1994 BMW 840

At 32 years old, the BMW 840 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 1994 BMW 840's fuel type, age, and engine size, these are the most likely problem areas to check.

Timing Chain / Belt

Watch out

At 32 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 1994 BMW 840 stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
BMW 840(1994)	74%	£1592	£760	Grp 35-50	£2907
PORSCHE 911(1996)	91%	£1592	£250	Grp 35-50	£2097-£810
MERCEDES E(1995)	79%	£1592	£250	Grp 35-50	£2397-£510
LAND ROVER RANGE ROVER(1996)	80%	£1592	£250	Grp 35-50	£2247-£660
JAGUAR XJS(1995)	89%	£1592	£250	Grp 35-50	£2247-£660

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.