How much does a 2021 CITROEN RELAY cost to run?

Estimated annual running cost is £1,995 (£166/month), including £1245 fuel, £195 road tax, £55 MOT, and £500 predicted repairs.

What is the MOT pass rate for a 2021 CITROEN RELAY?

The 2021 CITROEN RELAY has a 77% MOT pass rate based on 44 tests in 2026. This ranks 3345 out of 3373 cars from 2021.

Which year CITROEN RELAY is most reliable?

The 2018 CITROEN RELAY has the highest MOT pass rate at 85%. The least reliable year is 2005 at 63%.

What is the average mileage for a 2021 CITROEN RELAY?

The average mileage for a 2021 CITROEN RELAY is 32,620 miles, which is in line with the expected 37,000 miles for a 5-year-old car, suggesting normal everyday use.

CITROEN RELAY (2021)

Q: Is the 2021 CITROEN RELAY reliable?

Average reliability. Expect some repairs as it ages. 77% of CITROEN RELAYs from 2021 passed their MOT first time in 2026, based on 44 tests. That's 5 points below the national average of 82%.

Running costs, reliability data, and common problems from 44 real MOT tests.

Annual Cost

£1,995

£166/month

MOT Pass Rate

77%

Average

Road Tax

£195

Flat rate/year

Insurance

Grp 25-38

2179cc Diesel

Check Carefully

77% pass rate, £1995/year to run. 5 points below average.

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Diesel2179cc5 years old44 tests33k miles avg

Annual Running Costs

Fuel (Diesel, 2179cc)

~40 mpg

£1,245

Road Tax

Flat rate (post-2017)

£195

MOT Test

£55

Predicted Repairs

£500

Total per year£1,995

Per month£166/mo

Per week£38/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

77% MOT pass rate(Average)

0%National avg: 82%100%

Average reliability. Expect some repairs as it ages. That's close to the national average of 82%.

At 5 years old, 77% of CITROEN RELAYs from 2021 passed their MOT first time in 2026. That's based on 44 tests across the UK. The average mileage at this age is 32,620 miles.

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How Does It Compare?

Rank among 2021 cars3345th of 3,373(top 99%)

Rank among CITROEN models336th of 599(top 56%)

vs national average-5%(82% avg)

vs 2021 cars average-15%(92% avg)

vs CITROEN average-2%(79% avg)

Mileage Analysis

32,620

Average miles

37,000

Expected for age

The average 2021 CITROEN RELAY has 32,620 miles on the clock, which is in line with the expected 37,000 miles for a 5-year-old car, suggesting normal everyday use.

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Best Year to Buy?

The most reliable year is the 2018 model with a 85% MOT pass rate, while the 2005 model has the lowest at 63%. The 2021 sits between the two at 77%.

CITROEN RELAY by Year

Year	Pass Rate	Tests	Avg Mileage
2021	77%	44	32,620 mi
2020	79%	105	33,882 mi
2019	85%	940	54,174 mi
2018	85%	1,249	64,877 mi
2017	80%	2,295	84,158 mi
2016	80%	2,557	92,211 mi
2015	78%	2,563	101,990 mi
2014	76%	2,030	108,058 mi
2013	75%	1,461	106,366 mi
2012	76%	1,354	114,152 mi
2011	73%	1,326	123,145 mi
2010	73%	1,428	123,794 mi
2009	70%	1,173	126,729 mi
2008	71%	1,683	126,474 mi
2007	68%	1,791	125,795 mi
2006	68%	1,341	115,566 mi
2005	63%	808	106,101 mi
2004	66%	510	93,206 mi
2003	68%	485	93,245 mi
2002	65%	327	97,426 mi
2001	69%	157	82,776 mi
2000	64%	143	102,601 mi
1999	64%	204	92,161 mi
1998	70%	105	85,327 mi
1997	73%	48	95,801 mi
1996	66%	70	103,965 mi
1995	70%	84	93,461 mi
1993	60%	43	139,864 mi

Similar Cars to Consider

FORD KUGA

2019 · 1997cc Diesel

£1,482/year

91%

+14%

FORD TRANSIT CUSTOM

2019 · 2000cc Diesel

£1,632/year

87%

+10%

BMW 118

2020 · 1995cc Diesel

£1,482/year

93%

+16%

VOLKSWAGEN T-ROC

2019 · 1968cc Diesel

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+17%

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About the 2021 CITROEN RELAY

The 2021 CITROEN RELAY is a family car with a 2179cc diesel engine. 44 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It sits in the bottom 99% of 2021 cars for MOT pass rates.

With an average of 32,620 miles at 5 years old, CITROEN RELAY owners drive about as much as the UK average.

2021 CITROEN RELAY Fuel Costs

The 2179cc diesel engine offers a reasonable balance between performance and economy. 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 2021 CITROEN RELAY?

Total estimated annual running cost is £1,995 (£166/month), broken down as £1245 fuel, £195 road tax, £55 MOT, and £500 predicted repairs. Repair costs are moderate, reflecting the 77% pass rate. Keeping on top of servicing will help avoid surprises.

CITROEN RELAY Reliability Trend

Newer CITROEN RELAYs show better MOT pass rates than older ones, with an average improvement of 10 percentage points.

Buying a Used 2021 CITROEN RELAY

At 5 years old, the CITROEN RELAY offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost. If you're flexible on year, the 2018 model has the highest pass rate at 85%. Note: with only 44 tests in our data, these figures should be treated as indicative rather than definitive.

Common Issues to Watch For

Based on the 2021 CITROEN RELAY'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

Medium risk

Diesel turbos work harder and wear faster. Listen for whining noises and check for oil leaks around the turbo housing.

AdBlue System

Medium risk

Post-2015 diesels use AdBlue for emissions. Sensor failures and tank heater issues are common. Budget £200-£500 for repairs.

EGR Valve

Low risk

Exhaust Gas Recirculation valves clog with carbon deposits, causing rough running and poor economy. Cleaning costs £150-£300, replacement £300-£600.

Dual Mass Flywheel

Medium risk

Larger diesel engines put extra strain on the dual mass flywheel. Listen for rattling at idle. Replacement with clutch is £800-£1,500.

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 2021 CITROEN RELAY stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
CITROEN RELAY(2021)	77%	£1245	£195	Grp 25-38	£1995
FORD KUGA(2019)	91%	£1037	£190	Grp 18-32	£1482-£513
FORD TRANSIT CUSTOM(2019)	87%	£1037	£190	Grp 18-32	£1632-£363
BMW 118(2020)	93%	£1037	£190	Grp 18-32	£1482-£513
VOLKSWAGEN T-ROC(2019)	94%	£1037	£190	Grp 18-32	£1482-£513

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.