How much does a 2006 CITROEN C6 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 2006 CITROEN C6?

The 2006 CITROEN C6 has a 82% MOT pass rate based on 106 tests in 2026. This ranks 125 out of 575 cars from 2006.

Which year CITROEN C6 is most reliable?

The 2009 CITROEN C6 has the highest MOT pass rate at 84%. The least reliable year is 2008 at 73%.

CITROEN C6 (2006)

Q: Is the 2006 CITROEN C6 reliable?

Good reliability. Occasional issues but generally solid. 82% of CITROEN C6s from 2006 passed their MOT first time in 2026, based on 106 tests. That's 0 points above the national average of 82%.

Q: What is the average mileage for a 2006 CITROEN C6?

The average mileage for a 2006 CITROEN C6 is 115,367 miles, which is below the expected 148,000 miles for a 20-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 106 real MOT tests.

Annual Cost

£2,045

£170/month

MOT Pass Rate

82%

Good

Road Tax

£395

Based on CC/year

Insurance

Grp 30-42

2700cc Diesel

Solid Option

82% pass rate, £2045/year to run. Close to the national average.

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Diesel2700cc20 years old106 tests115k miles avg

Annual Running Costs

Fuel (Diesel, 2700cc)

~40 mpg

£1,245

Road Tax

Based on 2700cc

£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

82% 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 20 years old, 82% of CITROEN C6s from 2006 passed their MOT first time in 2026. That's based on 106 tests across the UK. The average mileage at this age is 115,367 miles.

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How Does It Compare?

Rank among 2006 cars125th of 575(top 22%)

Rank among CITROEN models262th of 599(top 44%)

vs national average+0%(82% avg)

vs 2006 cars average+9%(73% avg)

vs CITROEN average+3%(79% avg)

Mileage Analysis

115,367

Average miles

148,000

Expected for age

The average 2006 CITROEN C6 has 115,367 miles on the clock, which is below the expected 148,000 miles for a 20-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 2009 model with a 84% MOT pass rate, while the 2008 model has the lowest at 73%. The 2006 sits between the two at 82%.

CITROEN C6 by Year

Year	Pass Rate	Tests	Avg Mileage
2010	84%	58	96,606 mi
2009	84%	111	104,417 mi
2008	73%	132	105,359 mi
2007	79%	218	112,585 mi
2006	82%	106	115,367 mi

Similar Cars to Consider

BMW 3 SERIES

2008 · 2926cc Diesel

£1,900/year

80%

-2%

HONDA CIVIC

2007 · 2204cc Diesel

£2,050/year

72%

-10%

VOLKSWAGEN TRANSPORTER

2007 · 2370cc Diesel

£2,050/year

75%

-7%

FORD TRANSIT

2008 · 2402cc Diesel

£2,250/year

69%

-13%

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About the 2006 CITROEN C6

The 2006 CITROEN C6 is a large car with a 2700cc diesel engine. 106 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It ranks in the top 22% of all 2006 cars for reliability.

With an average of 115,367 miles at 20 years old, CITROEN C6 owners tend to use this car less than the typical driver.

2006 CITROEN C6 Fuel Costs

The 2700cc 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 2006 CITROEN C6?

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 82% pass rate. Keeping on top of servicing will help avoid surprises.

CITROEN C6 Reliability Trend

The CITROEN C6 has maintained consistent MOT pass rates across model years, varying by only 0 percentage points.

Buying a Used 2006 CITROEN C6

At 20 years old, the CITROEN C6 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 2009 model has the highest pass rate at 84%.

Common Issues to Watch For

Based on the 2006 CITROEN C6'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 115k 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.

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 2006 CITROEN C6 stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
CITROEN C6(2006)	82%	£1245	£395	Grp 30-42	£2045
BMW 3 SERIES(2008)	80%	£1245	£250	Grp 30-42	£1900-£145
HONDA CIVIC(2007)	72%	£1245	£250	Grp 25-38	£2050+£5
VOLKSWAGEN TRANSPORTER(2007)	75%	£1245	£250	Grp 25-38	£2050+£5
FORD TRANSIT(2008)	69%	£1245	£250	Grp 25-38	£2250+£205

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.