BMW 850 (2019)
Running costs, reliability data, and common problems from 42 real MOT tests.
Annual Cost
£2,192
£183/month
MOT Pass Rate
86%
Good
Road Tax
£195
Flat rate/year
Insurance
Grp 35-50
4395cc Petrol
Solid Option
86% pass rate, £2192/year to run. Close to the national average.
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Annual Running Costs
~30 mpg
Flat rate (post-2017)
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
Good reliability. Occasional issues but generally solid. That's close to the national average of 82%.
At 7 years old, 86% of BMW 850s from 2019 passed their MOT first time in 2026. That's based on 42 tests across the UK. The average mileage at this age is 29,761 miles.
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How Does It Compare?
Mileage Analysis
29,761
Average miles
51,800
Expected for age
The average 2019 BMW 850 has 29,761 miles on the clock, which is below the expected 51,800 miles for a 7-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 1993 model with a 96% MOT pass rate, while the 1994 model has the lowest at 86%. The 2019 sits between the two at 86%.
BMW 850 by Year
Similar Cars to Consider
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About the 2019 BMW 850
The 2019 BMW 850 is a premium performance with a 4395cc petrol engine. 42 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It sits in the bottom 87% of 2019 cars for MOT pass rates.
With an average of 29,761 miles at 7 years old, BMW 850 owners tend to use this car less than the typical driver.
2019 BMW 850 Fuel Costs
The 4395cc 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 2019 BMW 850?
Total estimated annual running cost is £2,192 (£183/month), broken down as £1592 fuel, £195 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 86% pass rate. Keeping on top of servicing will help avoid surprises.
BMW 850 Reliability Trend
Newer BMW 850s show better MOT pass rates than older ones, with an average improvement of 4 percentage points.
Buying a Used 2019 BMW 850
At 7 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 1993 model has the highest pass rate at 96%. Note: with only 42 tests in our data, these figures should be treated as indicative rather than definitive.
Common Issues to Watch For
Based on the 2019 BMW 850's fuel type, age, and engine size, these are the most likely problem areas to check.
Timing Chain / Belt
Watch outAt 7 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 riskLarger petrol engines can develop higher oil consumption as they age. Check the oil level and look for blue smoke from the exhaust.
Suspension Wear
Medium riskShock 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 riskAlways 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 2019 BMW 850 stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| BMW 850(2019) | 86% | £1592 | £195 | Grp 35-50 | £2192 |
| MERCEDES C(2019) | 91% | £1592 | £190 | Grp 35-50 | £2037-£155 |
| PORSCHE CAYENNE(2019) | 95% | £1592 | £190 | Grp 35-50 | £2037-£155 |
| PORSCHE 911(2018) | 96% | £1592 | £190 | Grp 35-50 | £2037-£155 |
| BMW X6(2017) | 92% | £1592 | £190 | Grp 35-50 | £2037-£155 |
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.
Related Bmw Models
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MERCEDES C
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