Mercedes Citan 109 Pure CDI (2020)

Estimated running costs and MOT pass rates from 1,922 MOT tests in 2024.

Annual Cost

£1,824

£152/month

MOT Pass Rate

81%

Good

Road Tax

£200

Standard rate/year

Est. Insurance

n/a

1461cc Diesel

Solid Option

81% pass rate, £1,824/year to run. Close to the average across all models.

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Diesel1461cc6 years old1,922 tests63k miles avg

Annual Running Costs

Fuel (Diesel, 1461cc)

~55 mpg

£1,219

Road Tax

Car rate estimate; vans are taxed differently

£200

MOT Test

£55

Predicted Repairs

£350

Total per year£1,824

Per month£152/mo

Per week£35/wk

Estimates based on 7,400 miles/year (UK average), diesel at 199.33p a litre (GOV.UK weekly average, week of 19 October 2026), GOV.UK road tax rates and repair likelihood from MOT data. Insurance not included. Cars registered from April 2017 pay the £200 standard rate, plus £440 a year for five years (from the second year) if they cost over £40,000 new (over £50,000 for electric cars).

Reliability Verdict

81% MOT pass rate(Good)

0%All-model avg: 82%100%

Good reliability. Occasional issues but generally solid. That's close to the average of 82% across all models in our data. It falls below the Mercedes brand average of 87%.

81% of MOT tests on Mercedes Citan 109 Pure CDIs from 2020 ended in a pass in 2024, when they were about 4 years old. That's based on 1,922 tests across the UK, retests included. The average mileage recorded at those tests was 63,019 miles.

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How Does It Compare?

Rank among 2020 models2475th of 2,554(bottom 4%)

Rank among Mercedes models1028th of 1,376(bottom half)

vs average of all models-1%(82% avg)

vs 2020 models average-11%(92% avg)

vs Mercedes average-6%(87% avg)

Mileage Analysis

63,019

Average miles

29,600

Expected for age

The average 2020 Mercedes Citan 109 Pure CDI had 63,019 miles on the clock at its 2024 MOT, which is well above the expected 29,600 miles for a 4-year-old car. Check service history carefully, as high-mileage cars need consistent maintenance to stay reliable.

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Best Year to Buy?

Of the years with at least 100 tests, the 2019 model has the highest MOT pass rate at 89%, while the 2020 model has the lowest at 81%. Consider a different year if reliability is a priority. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.

Mercedes Citan 109 Pure CDI by Year

Year	Pass Rate	Tests	Avg Mileage
2021	83%	1,443	51,525 mi
2020	81%	1,922	63,019 mi
2019	89%	161	78,945 mi

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About the 2020 Mercedes Citan 109 Pure CDI

The 2020 Mercedes Citan 109 Pure CDI is a van. Our records list a 1461cc diesel engine, though engines vary between versions. 1,922 MOT tests were recorded on this model in 2024, making it a reasonably common sight on UK roads. It sits in the bottom 4% of 2020 models for MOT pass rate.

With an average of 63,019 miles recorded at its 2024 MOT tests, Mercedes Citan 109 Pure CDI owners cover more miles than the average driver. High-mileage examples should be checked carefully for wear on suspension, brakes, and drivetrain components.

2020 Mercedes Citan 109 Pure CDI Fuel Costs

The 1461cc diesel engine offers a reasonable balance between performance and economy. Expect around 55 mpg in mixed driving, which works out to roughly £1,219 per year with diesel at 199.33p per litre (GOV.UK weekly average, week of 19 October 2026; 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 2020 Mercedes Citan 109 Pure CDI?

Total estimated annual running cost is £1,824 (£152/month), broken down as £1,219 fuel, £200 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 81% pass rate. Keeping on top of servicing will help avoid surprises.

Mercedes Citan 109 Pure CDI Reliability Trend

Older Mercedes Citan 109 Pure CDIs tend to have better MOT pass rates than newer ones, with an average decline of 7 percentage points across model years.

Buying a Used 2020 Mercedes Citan 109 Pure CDI

At 6 years old, the Mercedes Citan 109 Pure CDI offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost.

Common Issues to Watch For

These are typical issues for cars of this age, fuel type and engine size, not faults recorded on this model's MOT tests. Use them as a checklist when you view one.

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

Watch out

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

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.

Questions about the 2020 Mercedes Citan 109 Pure CDI

Is the 2020 Mercedes Citan 109 Pure CDI reliable?

Good reliability. Occasional issues but generally solid. 81% of MOT tests on 2020 Mercedes Citan 109 Pure CDIs ended in a pass, from 1,922 tests (DVSA MOT data for tests in 2024, retests included). That's 1 point below the average of 82% across all models in the same data.

How much does a 2020 Mercedes Citan 109 Pure CDI cost to run?

Our estimate is £1,824 a year (£152 a month): £1,219 fuel, £200 road tax, £55 MOT and £350 predicted repairs, based on 7,400 miles a year. Insurance is not included.

What is the MOT pass rate for a 2020 Mercedes Citan 109 Pure CDI?

81% of 1,922 MOT tests on the 2020 Mercedes Citan 109 Pure CDI ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 2475th of 2,554 models first registered in 2020 (bottom 4%).

Which year Mercedes Citan 109 Pure CDI has the best MOT pass rate?

Of the years with at least 100 tests, the 2019 Mercedes Citan 109 Pure CDI has the highest MOT pass rate at 89% and the 2020 the lowest at 81%. Newer cars usually pass more often simply because they are younger and have done fewer miles.

What is the average mileage for a 2020 Mercedes Citan 109 Pure CDI?

The average mileage recorded at MOT tests on the 2020 Mercedes Citan 109 Pure CDI is 63,019 miles, which is well above the expected 29,600 miles for a 4-year-old car. Check service history carefully, as high-mileage cars need consistent maintenance to stay reliable.