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BMW 635 (2007)

Running costs, reliability data, and common problems from 460 real MOT tests.

Annual Cost

£2,045

£170/month

MOT Pass Rate

85%

Good

Road Tax

£395

Based on CC/year

Insurance

Grp 30-42

2993cc Diesel

Solid Option

85% pass rate, £2045/year to run. Close to the national average.

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Diesel2993cc19 years old460 tests141k miles avg

Annual Running Costs

Fuel (Diesel, 2993cc)

~40 mpg

£1,245
Road Tax

Based on 2993cc

£395
MOT Test
£55
Predicted Repairs
£350
Total per year£2,045
Per month£170/mo
Per week£39/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

85% MOT pass rate(Good)
0%National avg: 82%100%

Good reliability. Occasional issues but generally solid. That's close to the national average of 82%.

At 19 years old, 85% of BMW 635s from 2007 passed their MOT first time in 2026. That's based on 460 tests across the UK. The average mileage at this age is 141,392 miles.

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How Does It Compare?

Rank among 2007 cars99th of 598(top 17%)
Rank among BMW models1132th of 1,564(top 72%)
vs national average+3%(82% avg)
vs 2007 cars average+12%(73% avg)
vs BMW average-3%(88% avg)

Mileage Analysis

141,392

Average miles

vs

140,600

Expected for age

The average 2007 BMW 635 has 141,392 miles on the clock, which is in line with the expected 140,600 miles for a 19-year-old car, suggesting normal everyday use.

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Best Year to Buy?

The most reliable year is the 2010 model with a 86% MOT pass rate, while the 2008 model has the lowest at 82%. The 2007 sits between the two at 85%.

BMW 635 by Year

YearPass RateTestsAvg Mileage
201086%1,060114,691 mi
200986%1,018124,198 mi
200882%1,312132,952 mi
200785%460141,392 mi
199079%47101,349 mi

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About the 2007 BMW 635

The 2007 BMW 635 is a premium performance with a 2993cc diesel engine. 460 of these vehicles were MOT tested in 2026, making it a less common model in the UK market. It ranks in the top 17% of all 2007 cars for reliability.

With an average of 141,392 miles at 19 years old, BMW 635 owners drive about as much as the UK average.

2007 BMW 635 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 2007 BMW 635?

Total estimated annual running cost is £2,045 170/month), broken down as £1245 fuel, £395 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 85% pass rate. Keeping on top of servicing will help avoid surprises.

BMW 635 Reliability Trend

The BMW 635 has maintained consistent MOT pass rates across model years, varying by only 3 percentage points.

Buying a Used 2007 BMW 635

At 19 years old, the BMW 635 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 2010 model has the highest pass rate at 86%.

Common Issues to Watch For

Based on the 2007 BMW 635'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.

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.

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 141k 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 2007 BMW 635 stacks up against similar cars for annual running costs, insurance, and tax.

CarPass RateFuel/yrTax/yrInsuranceTotal/yr
BMW 635(2007)85%£1245£395Grp 30-42£2045
BMW 3 SERIES(2008)80%£1245£250Grp 30-42£1900-£145
LAND ROVER DISCOVERY(2006)78%£1245£250Grp 25-38£2050+£5
AUDI TT(2008)81%£1245£250Grp 35-50£1900-£145
JAGUAR XF(2009)77%£1245£250Grp 30-42£2050+£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.

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