How much does a 2005 BMW M6 cost to run?

Estimated annual running cost is £2,757 (£230/month), including £1592 fuel, £760 road tax, £55 MOT, and £350 predicted repairs.

What is the MOT pass rate for a 2005 BMW M6?

The 2005 BMW M6 has a 87% MOT pass rate based on 204 tests in 2026. This ranks 67 out of 526 cars from 2005.

Which year BMW M6 is most reliable?

The 2014 BMW M6 has the highest MOT pass rate at 95%. The least reliable year is 2005 at 87%.

BMW M6 (2005)

Q: Is the 2005 BMW M6 reliable?

Good reliability. Occasional issues but generally solid. 87% of BMW M6s from 2005 passed their MOT first time in 2026, based on 204 tests. That's 5 points above the national average of 82%.

Q: What is the average mileage for a 2005 BMW M6?

The average mileage for a 2005 BMW M6 is 77,020 miles, which is significantly below the expected 155,400 miles for a 21-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.

Running costs, reliability data, and common problems from 204 real MOT tests.

Annual Cost

£2,757

£230/month

MOT Pass Rate

87%

Good

Road Tax

£760

Based on CC/year

Insurance

Grp 35-50

4999cc Petrol

Solid Option

87% pass rate, £2757/year to run. 5 points above average.

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Petrol4999cc21 years old204 tests77k miles avg

Annual Running Costs

Fuel (Petrol, 4999cc)

~30 mpg

£1,592

Road Tax

Based on 4999cc

£760

MOT Test

£55

Predicted Repairs

£350

Total per year£2,757

Per month£230/mo

Per week£53/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

87% 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 21 years old, 87% of BMW M6s from 2005 passed their MOT first time in 2026. That's based on 204 tests across the UK. The average mileage at this age is 77,020 miles.

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How Does It Compare?

Rank among 2005 cars67th of 526(top 13%)

Rank among BMW models1025th of 1,564(top 66%)

vs national average+5%(82% avg)

vs 2005 cars average+15%(72% avg)

vs BMW average-1%(88% avg)

Mileage Analysis

77,020

Average miles

155,400

Expected for age

The average 2005 BMW M6 has 77,020 miles on the clock, which is significantly below the expected 155,400 miles for a 21-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.

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Best Year to Buy?

The most reliable year is the 2014 model with a 95% MOT pass rate, while the 2005 model has the lowest at 87%. Consider a different year if reliability is a priority.

BMW M6 by Year

Year	Pass Rate	Tests	Avg Mileage
2018	89%	161	41,044 mi
2017	94%	341	38,245 mi
2016	92%	555	48,815 mi
2015	92%	629	55,303 mi
2014	95%	800	54,790 mi
2013	91%	310	54,574 mi
2012	93%	106	54,436 mi
2009	92%	38	63,568 mi
2008	89%	57	67,934 mi
2007	93%	107	69,046 mi
2006	90%	230	77,159 mi
2005	87%	204	77,020 mi

Similar Cars to Consider

BMW X5

2005 · 4799cc Petrol

£2,397/year

77%

-10%

MERCEDES CLK

2004 · 4966cc Petrol

£2,397/year

76%

-11%

MERCEDES SL

2003 · 4966cc Petrol

£2,247/year

86%

-1%

ROVER 75

2004 · 4601cc Petrol

£2,597/year

69%

-18%

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About the 2005 BMW M6

The 2005 BMW M6 is a premium performance with a 4999cc petrol engine. 204 of these vehicles were MOT tested in 2026, making it a less common model in the UK market. It ranks in the top 13% of all 2005 cars for reliability.

With an average of 77,020 miles at 21 years old, BMW M6 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.

2005 BMW M6 Fuel Costs

The 4999cc 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 2005 BMW M6?

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 87% pass rate. Keeping on top of servicing will help avoid surprises.

BMW M6 Reliability Trend

The BMW M6 has maintained consistent MOT pass rates across model years, varying by only 2 percentage points.

Buying a Used 2005 BMW M6

At 21 years old, the BMW M6 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.

Common Issues to Watch For

Based on the 2005 BMW M6's fuel type, age, and engine size, these are the most likely problem areas to check.

Timing Chain / Belt

Watch out

At 21 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.

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 2005 BMW M6 stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
BMW M6(2005)	87%	£1592	£760	Grp 35-50	£2757
BMW X5(2005)	77%	£1592	£250	Grp 35-50	£2397-£360
MERCEDES CLK(2004)	76%	£1592	£250	Grp 35-50	£2397-£360
MERCEDES SL(2003)	86%	£1592	£250	Grp 35-50	£2247-£510
ROVER 75(2004)	69%	£1592	£250	Grp 35-50	£2597-£160

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.