How much does a 2011 BMW 523 cost to run?

Estimated annual running cost is £2,045 (£170/month), including £1245 fuel, £395 road tax, £55 MOT, and £350 predicted repairs.

What is the MOT pass rate for a 2011 BMW 523?

The 2011 BMW 523 has a 84% MOT pass rate based on 341 tests in 2026. This ranks 223 out of 615 cars from 2011.

Which year BMW 523 is most reliable?

The 2013 BMW 523 has the highest MOT pass rate at 100%. The least reliable year is 1996 at 68%.

BMW 523 (2011)

Q: Is the 2011 BMW 523 reliable?

Good reliability. Occasional issues but generally solid. 84% of BMW 523s from 2011 passed their MOT first time in 2026, based on 341 tests. That's 2 points above the national average of 82%.

Q: What is the average mileage for a 2011 BMW 523?

The average mileage for a 2011 BMW 523 is 79,140 miles, which is below the expected 111,000 miles for a 15-year-old car. This suggests lighter use than average, which generally means less wear on major components.

Running costs, reliability data, and common problems from 341 real MOT tests.

Annual Cost

£2,045

£170/month

MOT Pass Rate

84%

Good

Road Tax

£395

Based on CC/year

Insurance

Grp 30-42

2996cc Diesel

Solid Option

84% pass rate, £2045/year to run. Close to the national average.

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Diesel2996cc15 years old341 tests79k miles avg

Annual Running Costs

Fuel (Diesel, 2996cc)

~40 mpg

£1,245

Road Tax

Based on 2996cc

£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

84% 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%. It falls below the BMW brand average of 88%.

At 15 years old, 84% of BMW 523s from 2011 passed their MOT first time in 2026. That's based on 341 tests across the UK. The average mileage at this age is 79,140 miles.

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How Does It Compare?

Rank among 2011 cars223th of 615(top 36%)

Rank among BMW models1176th of 1,564(top 75%)

vs national average+2%(82% avg)

vs 2011 cars average+7%(77% avg)

vs BMW average-4%(88% avg)

Mileage Analysis

79,140

Average miles

111,000

Expected for age

The average 2011 BMW 523 has 79,140 miles on the clock, which is below the expected 111,000 miles for a 15-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 2013 model with a 100% MOT pass rate, while the 1996 model has the lowest at 68%. The 2011 sits between the two at 84%.

BMW 523 by Year

Year	Pass Rate	Tests	Avg Mileage
2016	93%	42	55,120 mi
2013	100%	68	48,039 mi
2012	92%	51	54,895 mi
2011	84%	341	79,140 mi
2010	81%	480	87,591 mi
2009	80%	193	97,424 mi
2008	77%	244	112,799 mi
2007	76%	327	118,243 mi
2006	79%	494	122,075 mi
2005	80%	414	120,862 mi
2000	78%	496	136,987 mi
1999	71%	1,057	137,920 mi
1998	68%	885	130,239 mi
1997	78%	266	128,092 mi
1996	68%	142	123,219 mi

Similar Cars to Consider

LAND ROVER RANGE ROVER

2013 · 2926cc Diesel

£1,900/year

88%

+4%

AUDI A4

2011 · 2967cc Diesel

£1,900/year

82%

-2%

JAGUAR XF

2013 · 2993cc Diesel

£1,900/year

82%

-2%

AUDI A5

2013 · 2967cc Diesel

£1,900/year

85%

+1%

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About the 2011 BMW 523

The 2011 BMW 523 is a premium performance with a 2996cc diesel engine. 341 of these vehicles were MOT tested in 2026, making it a less common model in the UK market. Among all cars from 2011, the average MOT pass rate is 77%, and this model beats that benchmark.

With an average of 79,140 miles at 15 years old, BMW 523 owners tend to use this car less than the typical driver.

2011 BMW 523 Fuel Costs

The 2996cc 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 2011 BMW 523?

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 84% pass rate. Keeping on top of servicing will help avoid surprises.

BMW 523 Reliability Trend

Newer BMW 523s show better MOT pass rates than older ones, with an average improvement of 10 percentage points.

Buying a Used 2011 BMW 523

At 15 years old, the BMW 523 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 2013 model has the highest pass rate at 100%.

Common Issues to Watch For

Based on the 2011 BMW 523'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.

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 2011 BMW 523 stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
BMW 523(2011)	84%	£1245	£395	Grp 30-42	£2045
LAND ROVER RANGE ROVER(2013)	88%	£1245	£250	Grp 30-42	£1900-£145
AUDI A4(2011)	82%	£1245	£250	Grp 30-42	£1900-£145
JAGUAR XF(2013)	82%	£1245	£250	Grp 30-42	£1900-£145
AUDI A5(2013)	85%	£1245	£250	Grp 30-42	£1900-£145

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.