BMW 850 (1992)
Running costs, reliability data, and common problems from 83 real MOT tests.
Annual Cost
£2,757
£230/month
MOT Pass Rate
88%
Good
Road Tax
£760
Based on CC/year
Insurance
Grp 35-50
4988cc Petrol
Solid Option
88% pass rate, £2757/year to run. 6 points above average.
Check a specific BMW 850
Enter a reg plate for full MOT history, mileage check, health score, running costs, and reliability data. Free, instant, no signup.
Annual Running Costs
~30 mpg
Based on 4988cc
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.
Get an insurance quote for this BMW 850
Compare quotes and find the best deal
Reliability Verdict
Good reliability. Occasional issues but generally solid. That's 6 points above the national average of 82%.
At 34 years old, 88% of BMW 850s from 1992 passed their MOT first time in 2026. That's based on 83 tests across the UK. The average mileage at this age is 110,100 miles.
Got a BMW 850 you're looking at?
Enter the reg plate to check its specific MOT history, mileage, and health score.
How Does It Compare?
Mileage Analysis
110,100
Average miles
251,600
Expected for age
The average 1992 BMW 850 has 110,100 miles on the clock, which is significantly below the expected 251,600 miles for a 34-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 BMW 850?
Enter its reg plate for a free check with full MOT history, mileage verification, and predicted costs.
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 1992 sits between the two at 88%.
BMW 850 by Year
Similar Cars to Consider
Check a Specific Bmw 850
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 1992 BMW 850
The 1992 BMW 850 is a premium performance with a 4988cc petrol engine. 83 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It ranks in the top 15% of all 1992 cars for reliability.
With an average of 110,100 miles at 34 years old, BMW 850 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.
1992 BMW 850 Fuel Costs
The 4988cc 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 1992 BMW 850?
Total estimated annual running cost is £2,757 (£230/month), broken down as £1592 fuel, £760 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 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 1992 BMW 850
At 34 years old, the BMW 850 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 1993 model has the highest pass rate at 96%. Note: with only 83 tests in our data, these figures should be treated as indicative rather than definitive.
Common Issues to Watch For
Based on the 1992 BMW 850's fuel type, age, and engine size, these are the most likely problem areas to check.
Timing Chain / Belt
Watch outAt 34 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.
Rust and Corrosion
Watch outAt 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 outRubber 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 outWith an average of 110k 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 riskHigh-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 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 1992 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(1992) | 88% | £1592 | £760 | Grp 35-50 | £2757 |
| MERCEDES SL(1994) | 88% | £1592 | £250 | Grp 35-50 | £2247-£510 |
| JAGUAR XJS(1990) | 82% | £1592 | £250 | Grp 35-50 | £2247-£510 |
| TVR CHIMAERA(1994) | 83% | £1592 | £250 | Grp 35-50 | £2247-£510 |
| MERCEDES 500(1991) | 87% | £1592 | £250 | Grp 35-50 | £2247-£510 |
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
Explore other Bmw cars or similar models in the same category.
BMW 3 SERIES
2013 · 1995cc Diesel
BMW 5 SERIES
2018 · 2998cc Petrol
BMW 116
2014 · 1995cc Diesel
MERCEDES SL
1994 · 4973cc Petrol
JAGUAR XJS
1990 · 5343cc Petrol
TVR CHIMAERA
1994 · 4988cc Petrol
Related Guides
In-depth articles relevant to the Bmw 850.
How to Prepare for Your MOT: 20 Checks That Could Save You Money
8 min read
Buying GuideCars That Hold Their Value UK 2026 (Up to 71% After 3 Years)
10 min read
Buying GuideCars That Lose Value Fastest: Models to Avoid for Depreciation
8 min read
Buying GuideFord Fiesta Common Problems (2026): What to Check Before Buying
13 min read
ReliabilityFord Puma Problems: 7 Issues Owners Report (2026)
13 min read
Check a specific BMW 850
Enter the reg to see its MOT history, mileage check, and predicted costs.
Premium History Check
Buying a BMW 850? Our premium check covers:
- Stolen check (PNC)
- Outstanding finance
- Write-off history (Cat A/B/N/S)
- Previous owners count
Competitors charge £10-£20 for the same data