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DS DS7 C-BACK PFMNC LN+ BHDI SS A (2021)

Running costs, common problems, and reliability data based on 144 real MOT tests in 2024.

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MOT Pass Rate

93%

Total Tests (2024)

144

Avg Mileage

31,436 mi

Est. Annual Cost

£1,350

Is the 2021 DS DS7 C-BACK PFMNC LN+ BHDI SS A reliable?

Excellent reliability. Very few MOT failures. That's 11 points above the national average of 82%. It also outperforms the DS brand average of 88%.

At 3 years old, 93% of DS DS7 C-BACK PFMNC LN+ BHDI SS As from 2021 passed their MOT first time in 2024. That's based on 144 tests across the UK. The average mileage at this age is 31,436 miles.

How does the 2021 DS DS7 C-BACK PFMNC LN+ BHDI SS A compare?

Rank among all 2021 cars1695th out of 3,373(top 50%)
Rank among all DS models12th out of 53(top 23%)
vs national average+11% (82% avg)
vs 2021 cars average+1% (92% avg)
vs DS average+5% (88% avg)

Mileage Analysis

The average 2021 DS DS7 C-BACK PFMNC LN+ BHDI SS A has 31,436 miles on the clock, which is above the expected 22,200 miles for a 3-year-old car. Higher-mileage cars often have more motorway miles, which is generally less harmful than stop-start urban driving.

How much does a 2021 DS DS7 C-BACK PFMNC LN+ BHDI SS A cost to run?

⛽Fuel (Diesel, 1500cc)
£905
🏛️Road Tax
£190
🔧MOT Test
£55
🛠️Predicted Repairs
£200
Total per year£1,350
Per month£113/mo

Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.

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About the 2021 DS DS7 C-BACK PFMNC LN+ BHDI SS A

The 2021 DS DS7 C-BACK PFMNC LN+ BHDI SS A is a small family car with a 1500cc diesel engine. 144 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. Among all cars from 2021, the average MOT pass rate is 92%, and this model beats that benchmark.

With an average of 31,436 miles at 3 years old, DS DS7 C-BACK PFMNC LN+ BHDI SS A owners cover more miles than the average driver.

2021 DS DS7 C-BACK PFMNC LN+ BHDI SS A Fuel Costs

The 1500cc 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).

What does it cost to own a 2021 DS DS7 C-BACK PFMNC LN+ BHDI SS A?

Total estimated annual running cost is £1,350 (£113/month), broken down as £905 fuel, £190 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 93% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

Buying a Used 2021 DS DS7 C-BACK PFMNC LN+ BHDI SS A

At 3 years old, this is still relatively fresh. You may find examples with remaining manufacturer warranty. Depreciation is slowing but hasn't bottomed out yet.

Alternatives to the 2021 DS DS7 C-BACK PFMNC LN+ BHDI SS A

The DS DS7 C-BACK PFMNC LN+ BHDI SS A is actually the most reliable option among similar diesel small family cars from this era. Here are comparable diesel cars with similar engines: