CarCostCheck

DS DS7 C-BACK PFRMNC LN BHDI SS A (2020)

Running costs, reliability data, and common problems from 199 real MOT tests.

Annual Cost

£1,505

£125/month

MOT Pass Rate

86%

Good

Road Tax

£195

Flat rate/year

Insurance

Grp 12-25

1499cc Diesel

Solid Option

86% pass rate, £1505/year to run. Close to the national average.

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Diesel1499cc6 years old199 tests38k miles avg

Annual Running Costs

Fuel (Diesel, 1499cc)

~55 mpg

£905
Road Tax

Flat rate (post-2017)

£195
MOT Test
£55
Predicted Repairs
£350
Total per year£1,505
Per month£125/mo
Per week£29/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

86% 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 6 years old, 86% of DS DS7 C-BACK PFRMNC LN BHDI SS As from 2020 passed their MOT first time in 2026. That's based on 199 tests across the UK. The average mileage at this age is 37,947 miles.

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How Does It Compare?

Rank among 2020 cars2314th of 2,596(top 89%)
Rank among DS models38th of 53(top 72%)
vs national average+4%(82% avg)
vs 2020 cars average-6%(92% avg)
vs DS average-2%(88% avg)

Mileage Analysis

37,947

Average miles

vs

44,400

Expected for age

The average 2020 DS DS7 C-BACK PFRMNC LN BHDI SS A has 37,947 miles on the clock, which is in line with the expected 44,400 miles for a 6-year-old car, suggesting normal everyday use.

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Best Year to Buy?

The most reliable year is the 2019 model with a 89% MOT pass rate, while the 2018 model has the lowest at 82%. The 2020 sits between the two at 86%.

DS DS7 C-BACK PFRMNC LN BHDI SS A by Year

YearPass RateTestsAvg Mileage
202190%3028,336 mi
202086%19937,947 mi
201989%41048,988 mi
201882%47252,630 mi

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About the 2020 DS DS7 C-BACK PFRMNC LN BHDI SS A

The 2020 DS DS7 C-BACK PFRMNC LN BHDI SS A is a small family car with a 1499cc diesel engine. 199 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It sits in the bottom 89% of 2020 cars for MOT pass rates.

With an average of 37,947 miles at 6 years old, DS DS7 C-BACK PFRMNC LN BHDI SS A owners drive about as much as the UK average.

2020 DS DS7 C-BACK PFRMNC LN BHDI SS A Fuel Costs

The 1499cc diesel engine offers a reasonable balance between performance and economy. Expect around 55 mpg in mixed driving, which works out to roughly £905 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 2020 DS DS7 C-BACK PFRMNC LN BHDI SS A?

Total estimated annual running cost is £1,505 125/month), broken down as £905 fuel, £195 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 86% pass rate. Keeping on top of servicing will help avoid surprises.

DS DS7 C-BACK PFRMNC LN BHDI SS A Reliability Trend

Newer DS DS7 C-BACK PFRMNC LN BHDI SS As show better MOT pass rates than older ones, with an average improvement of 6 percentage points.

Buying a Used 2020 DS DS7 C-BACK PFRMNC LN BHDI SS A

At 6 years old, the DS DS7 C-BACK PFRMNC LN BHDI SS A 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 2019 model has the highest pass rate at 89%.

Common Issues to Watch For

Based on the 2020 DS DS7 C-BACK PFRMNC LN BHDI SS A'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

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.

Running Costs Compared

How the 2020 DS DS7 C-BACK PFRMNC LN BHDI SS A stacks up against similar cars for annual running costs, insurance, and tax.

CarPass RateFuel/yrTax/yrInsuranceTotal/yr
DS DS7 C-BACK PFRMNC LN BHDI SS A(2020)86%£905£195Grp 12-25£1505
VOLKSWAGEN GOLF(2018)92%£1037£190Grp 18-32£1482-£23
FORD FOCUS(2019)89%£905£190Grp 12-25£1500-£5
MERCEDES A(2019)91%£905£190Grp 12-25£1350-£155
MERCEDES A-CLASS(2018)89%£905£190Grp 12-25£1500-£5

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.

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