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Used Diesel Cars for Sale

in the UK

Greater range and efficiency on motorways. Ideal for long-distance commuters.

£990
From
£10,382
Average price

Diesel cars available

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Diesel motorhomes for sale

Diesel motorbikes for sale

Quick summary: Used Diesel cars

Used diesel cars on Autoza right now are priced from £990 to £107,995, averaging £10,382. Euro 6 diesels (from 2015) are excellent for long-distance driving. Recommended if you do 20,000+ miles/year on motorways. They return 55-65mpg. Engines last 250,000-400,000 miles when well maintained.

Advantages of diesel cars

Greater range
Motorway efficient
Lower fuel consumption
Ideal for long trips

Frequently asked questions about diesel cars

Is it worth buying a used diesel car in 2026?
Yes, if you drive more than 20,000 miles/year mainly on motorways. Modern Euro 6 diesels (from 2019) return 55-65mpg on motorways. For urban-only or under 15,000 miles/year, a hybrid is more cost-effective.
What road tax do diesel cars pay in the UK?
Road tax (VED) on a used diesel: £200/year standard rate from the second year, hybrids included — the alternative-fuel discount ended on 1 April 2025. A car registered from April 2017 with a list price over £40,000 when new adds the £440/year Expensive Car Supplement in years 2–6 (£640 in all). Cars registered 2001–2017 pay a CO2 band, roughly £20–£790/year (2026/27 rates). A diesel registered from April 2017 that does not meet the RDE2 standard paid a higher first-year rate, but that was paid by its first owner.
How long does a diesel engine last?
A well-maintained diesel engine can last 250,000-400,000 miles. Mercedes, BMW and Volvo are known for durability. Key: oil changes every 12,000 miles and filters as per manufacturer schedule.
What are common problems with used diesels?
Common issues include clogged EGR valves, worn turbos, injectors and diesel particulate filter (DPF). Check service history and do a long test drive. Diesels under 100,000 miles are usually fine.
Will diesel cars be banned in the UK?
The UK plans to end sales of new petrol and diesel cars by 2035 (new pure petrol/diesel by 2030 under current policy). Used diesels will remain road-legal for many years. However, Clean Air Zone and ULEZ charges may apply in some cities.

Your next diesel car, hassle-free

Yes, diesels are under scrutiny, but let's be realistic: if you do high annual mileage or your journeys are mainly on the motorway, a used diesel is still a very sensible economic choice.

When a used diesel makes sense

If you drive more than 20,000 miles a year and most of it is on the motorway, the fuel economy of a modern diesel is hard to beat. A Euro 6 diesel (2019 onwards) is cleaner than you might think and offers incredible efficiency at 55-65mpg on the motorway.

That said, if you live in a city centre and drive mainly in urban areas, a hybrid might work out better for you. Diesel shines on long journeys where its 55-65mpg really makes a difference.

Diesel cars are sold with a manual or an automatic gearbox. Browse used automatic cars for sale to see only the automatics, with the different kinds of automatic gearbox explained.

Warranty and your rights

Autoza does not sell cars or attach a warranty to them. Whether a car comes with a warranty, and for how long, is up to the seller — check the advert or ask them. When you buy from a business you also have rights under the Consumer Rights Act 2015: the car must be of satisfactory quality, fit for purpose and as described.

You can message the seller directly on Autoza, ask whatever you want and arrange a viewing.