BMW 5 Series (1998)

Estimated running costs and MOT pass rates from 184 MOT tests in 2024.

Annual Cost

£2,738

£228/month

MOT Pass Rate

80%

Good

Road Tax

£375

Estimated/year

Est. Insurance

Grp 25-38

2494cc Petrol

Solid Option

80% pass rate, £2,738/year to run. Close to the average across all models.

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Petrol2494cc28 years old184 tests127k miles avg

Annual Running Costs

Fuel (Petrol, 2494cc)

~30 mpg

£1,958

Road Tax

Pre-2001 engine size rate

£375

MOT Test

£55

Predicted Repairs

£350

Total per year£2,738

Per month£228/mo

Per week£53/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

80% MOT pass rate(Good)

0%All-model avg: 82%100%

Good reliability. Occasional issues but generally solid. That's close to the average of 82% across all models in our data. It falls below the BMW brand average of 88%.

80% of MOT tests on BMW 5 Seriess from 1998 ended in a pass in 2024, when they were about 26 years old. That's based on 184 tests across the UK, retests included. The average mileage recorded at those tests was 126,519 miles.

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How Does It Compare?

Rank among 1998 models89th of 325(top half)

Rank among BMW models1345th of 1,548(bottom 14%)

vs average of all models-2%(82% avg)

vs 1998 models average+5%(75% avg)

vs BMW average-8%(88% avg)

Mileage Analysis

126,519

Average miles

192,400

Expected for age

The average 1998 BMW 5 Series had 126,519 miles on the clock at its 2024 MOT, which is below the expected 192,400 miles for a 26-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?

Of the years with at least 100 tests, the 2021 model has the highest MOT pass rate at 93%, while the 1999 model has the lowest at 71%. The 1998 scores 80%. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.

BMW 5 Series by Year

Year	Pass Rate	Tests	Avg Mileage
2023	98%	185	24,552 mi
2022	96%	586	33,834 mi
2021	93%	4,081	35,046 mi
2020	92%	9,409	40,517 mi
2019	92%	33,766	52,218 mi
2018	91%	40,272	63,822 mi
2017	90%	28,884	73,845 mi
2016	91%	104	58,170 mi
2015	93%	135	77,391 mi
2014	88%	495	96,084 mi
2013	83%	12,106	116,962 mi
2012	83%	12,364	124,375 mi
2011	83%	2,348	129,743 mi
2010	83%	1,299	135,211 mi
2009	83%	1,296	149,453 mi
2008	83%	1,682	154,421 mi
2007	81%	1,827	159,927 mi
2006	80%	1,465	158,383 mi
2005	76%	866	156,443 mi
2004	78%	555	149,786 mi
2003	77%	437	139,654 mi
2002	78%	330	147,542 mi
2001	81%	217	138,008 mi
2000	75%	179	151,070 mi
1999	71%	224	143,099 mi
1998	80%	184	126,519 mi
1997	79%	94	129,696 mi
1996	78%	55	148,837 mi
1995	77%	60	147,066 mi
1994	84%	51	134,866 mi

Similar Cars to Consider

BMW Z3

1998 · 2800cc Petrol

£2,888/year

77%

-3%

BMW 3 Series

1999 · 2494cc Petrol

£2,888/year

78%

-2%

Mercedes SLK

1999 · 2298cc Petrol

£2,888/year

79%

-1%

Porsche Boxster

2000 · 2700cc Petrol

£2,738/year

82%

+2%

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About the 1998 BMW 5 Series

The 1998 BMW 5 Series is a premium car. Our records list a 2494cc petrol engine, though engines vary between versions. 184 MOT tests were recorded on this model in 2024, making it a rare model on UK roads. Among all models from 1998, the average MOT pass rate is 75%, and this model beats that benchmark.

With an average of 126,519 miles recorded at its 2024 MOT tests, BMW 5 Series owners tend to use this car less than the typical driver.

1998 BMW 5 Series Fuel Costs

The 2494cc 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 1998 BMW 5 Series?

Total estimated annual running cost is £2,738 (£228/month), broken down as £1,958 fuel, £375 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.

BMW 5 Series Reliability Trend

Newer BMW 5 Seriess pass their MOT more often than older ones, by 10 percentage points on average, which is mostly down to age and wear.

Buying a Used 1998 BMW 5 Series

At 28 years old, the BMW 5 Series 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 93%.

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 28 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 127k 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 1998 BMW 5 Series 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
BMW 5 Series(1998)	80%	£1,958	£375	Grp 25-38	£2,738
BMW Z3(1998)	77%	£1,958	£375	Grp 30-42	£2,888+£150
BMW 3 Series(1999)	78%	£1,958	£375	Grp 25-38	£2,888+£150
Mercedes SLK(1999)	79%	£1,958	£375	Grp 25-38	£2,888+£150
Porsche Boxster(2000)	82%	£1,958	£375	Grp 30-42	£2,738same

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 1998 BMW 5 Series

Is the 1998 BMW 5 Series reliable?

Good reliability. Occasional issues but generally solid. 80% of MOT tests on 1998 BMW 5 Seriess ended in a pass, from 184 tests (DVSA MOT data for tests in 2024, retests included). That's 2 points below the average of 82% across all models in the same data.

How much does a 1998 BMW 5 Series cost to run?

Our estimate is £2,738 a year (£228 a month): £1,958 fuel, £375 road tax, £55 MOT and £350 predicted repairs, based on 7,400 miles a year. Insurance is not included.

What is the MOT pass rate for a 1998 BMW 5 Series?

80% of 184 MOT tests on the 1998 BMW 5 Series ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 89th of 325 models first registered in 1998 (top half).

Which year BMW 5 Series has the best MOT pass rate?

Of the years with at least 100 tests, the 2021 BMW 5 Series has the highest MOT pass rate at 93% and the 1999 the lowest at 71%. Newer cars usually pass more often simply because they are younger and have done fewer miles.

What is the average mileage for a 1998 BMW 5 Series?

The average mileage recorded at MOT tests on the 1998 BMW 5 Series is 126,519 miles, which is below the expected 192,400 miles for a 26-year-old car. This suggests lighter use than average, which generally means less wear on major components.