How much does a 2018 BMW 640 cost to run?

Estimated annual running cost is £1,845 (£154/month), including £1245 fuel, £195 road tax, £55 MOT, and £350 predicted repairs.

What is the MOT pass rate for a 2018 BMW 640?

The 2018 BMW 640 has a 88% MOT pass rate based on 1,668 tests in 2026. This ranks 450 out of 649 cars from 2018.

Which year BMW 640 is most reliable?

The 2015 BMW 640 has the highest MOT pass rate at 90%. The least reliable year is 2017 at 87%.

What is the average mileage for a 2018 BMW 640?

The average mileage for a 2018 BMW 640 is 50,131 miles, which is in line with the expected 59,200 miles for a 8-year-old car, suggesting normal everyday use.

BMW 640 (2018)

Q: Is the 2018 BMW 640 reliable?

Good reliability. Occasional issues but generally solid. 88% of BMW 640s from 2018 passed their MOT first time in 2026, based on 1,668 tests. That's 6 points above the national average of 82%.

Running costs, reliability data, and common problems from 1,668 real MOT tests.

Annual Cost

£1,845

£154/month

MOT Pass Rate

88%

Good

Road Tax

£195

Flat rate/year

Insurance

Grp 30-42

2993cc Diesel

Solid Option

88% pass rate, £1845/year to run. 6 points above average.

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Diesel2993cc8 years old1,668 tests50k miles avg

Annual Running Costs

Fuel (Diesel, 2993cc)

~40 mpg

£1,245

Road Tax

Flat rate (post-2017)

£195

MOT Test

£55

Predicted Repairs

£350

Total per year£1,845

Per month£154/mo

Per week£35/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

88% MOT pass rate(Good)

0%National avg: 82%100%

Good reliability. Occasional issues but generally solid. That's 6 points above the national average of 82%.

At 8 years old, 88% of BMW 640s from 2018 passed their MOT first time in 2026. That's based on 1,668 tests across the UK. The average mileage at this age is 50,131 miles.

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How Does It Compare?

Rank among 2018 cars450th of 649(top 69%)

Rank among BMW models909th of 1,564(top 58%)

vs national average+6%(82% avg)

vs 2018 cars average-1%(89% avg)

vs BMW average+0%(88% avg)

Mileage Analysis

50,131

Average miles

59,200

Expected for age

The average 2018 BMW 640 has 50,131 miles on the clock, which is in line with the expected 59,200 miles for a 8-year-old car, suggesting normal everyday use.

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Best Year to Buy?

The most reliable year is the 2015 model with a 90% MOT pass rate, while the 2017 model has the lowest at 87%. The 2018 sits between the two at 88%.

BMW 640 by Year

Year	Pass Rate	Tests	Avg Mileage
2018	88%	1,668	50,131 mi
2017	87%	2,562	56,072 mi
2016	90%	4,300	67,077 mi
2015	90%	5,007	75,816 mi
2014	89%	4,809	83,025 mi
2013	88%	3,389	93,395 mi
2012	87%	2,756	95,804 mi
2011	89%	1,116	86,228 mi

Similar Cars to Consider

MERCEDES E

2019 · 2925cc Diesel

£1,690/year

90%

+2%

MERCEDES GLC

2018 · 2987cc Diesel

£1,690/year

91%

+3%

AUDI A5

2017 · 2967cc Diesel

£1,840/year

89%

+1%

FORD RANGER

2019 · 3198cc Diesel

£1,840/year

87%

-1%

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About the 2018 BMW 640

The 2018 BMW 640 is a premium performance with a 2993cc diesel engine. 1,668 of these vehicles were MOT tested in 2026, making it a reasonably common sight on UK roads. Among all cars from 2018, the average MOT pass rate is 89%, and this model falls short of that benchmark.

With an average of 50,131 miles at 8 years old, BMW 640 owners drive about as much as the UK average.

2018 BMW 640 Fuel Costs

The 2993cc diesel engine is on the larger side, so fuel won't be this car's strong point. Expect around 40 mpg in mixed driving, which works out to roughly £1,245 per year at current diesel prices of 148p per litre (based on 7,400 miles per year). Diesel cars of this age should have their DPF (diesel particulate filter) checked, as replacements can be costly.

What does it cost to own a 2018 BMW 640?

Total estimated annual running cost is £1,845 (£154/month), broken down as £1245 fuel, £195 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 88% pass rate. Keeping on top of servicing will help avoid surprises.

BMW 640 Reliability Trend

The BMW 640 has maintained consistent MOT pass rates across model years, varying by only 1 percentage points.

Buying a Used 2018 BMW 640

At 8 years old, this is a solid used buy if you find one with good service history. Depreciation has levelled off, so you won't lose much more value. Focus on condition over mileage. If you're flexible on year, the 2015 model has the highest pass rate at 90%.

Common Issues to Watch For

Based on the 2018 BMW 640's fuel type, age, and engine size, these are the most likely problem areas to check.

DPF (Diesel Particulate Filter)

Watch out

Short journeys clog the DPF. Replacement costs £1,000-£2,500. Check the DPF warning light and ask about driving patterns.

Turbo Wear

Watch out

Diesel turbos work harder and wear faster. Listen for whining noises and check for oil leaks around the turbo housing.

AdBlue System

Medium risk

Post-2015 diesels use AdBlue for emissions. Sensor failures and tank heater issues are common. Budget £200-£500 for repairs.

EGR Valve

Watch out

Exhaust Gas Recirculation valves clog with carbon deposits, causing rough running and poor economy. Cleaning costs £150-£300, replacement £300-£600.

Dual Mass Flywheel

Watch out

Larger diesel engines put extra strain on the dual mass flywheel. Listen for rattling at idle. Replacement with clutch is £800-£1,500.

Suspension Wear

Medium risk

Shock absorbers, springs, and anti-roll bar links typically need attention around this age. Listen for clunks over bumps and check for uneven tyre wear.

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 2018 BMW 640 stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
BMW 640(2018)	88%	£1245	£195	Grp 30-42	£1845
MERCEDES E(2019)	90%	£1245	£190	Grp 30-42	£1690-£155
MERCEDES GLC(2018)	91%	£1245	£190	Grp 30-42	£1690-£155
AUDI A5(2017)	89%	£1245	£190	Grp 30-42	£1840-£5
FORD RANGER(2019)	87%	£1245	£190	Grp 35-50	£1840-£5

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.