2020 Mercedes-Benz X Class 3.0 CDI V6 Power

Overview

• Make: Mercedes-Benz
• Model: X Class
• Trim: Power
• Version: 3.0 CDI V6 Power G-Tronic+ 4WD Euro 6 4dr (254 bhp)
• Year: 2020
• Mileage: 46,890 miles
• Fuel: Diesel
• Body: Pickup, 4 doors, 5 seats
• Engine: 3.0 litres, 254 bhp
• Gearbox: Automatic (G-Tronic+)
• Drive: Four-wheel drive
• Colour: White
• CO2: 230 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 46,890 miles, this 2020 Mercedes-Benz X Class Power has covered about 6,800 fewer miles than other 2020 Mercedes-Benz X Class cars. The dealer is asking £35,994, which is £1,398 above the AskCar estimate of £34,596. To work out the AskCar estimate, we analyse UK dealer adverts for 84 Mercedes-Benz X Class cars across different ages and specifications. This car was first seen in our listings data 81 days ago. Our latest MOT record expired on 18 May 2026. Check the current position with the dealer. The government's MOT record matches its advertised mileage. It is advertised by Comptons Cars & Commercials in Billericay. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,398 (4%) over the AskCar estimate of £34,596.

The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.

It draws on 84 priced Mercedes-Benz X Class adverts across different ages and specifications, as of 8 November 2026.

A 2020 Mercedes-Benz X Class with the 3.0 diesel engine is typically advertised at £31,200: the median of the 15 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2020 Mercedes-Benz X Class has been on sale for at least 81 days.

Price history

AskCar first saw this advert on 19 August 2026 at £35,994. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: the latest record we hold ran out on 18 May 2026; ask the dealer for the current MOT.

It failed its MOT on 19 May 2025 (tyre pressure monitoring system malfunctioning or obviously inoperative) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 45,441 miles, which matches the advertised 46,890 miles.

Advertised mileage is about 6,800 miles lower than the median mileage of a 2020 Mercedes-Benz X Class on AskCar.

Similar cars

14 other 2020 Mercedes-Benz X Class Power 3.0 diesel automatic pickups are for sale at UK dealers, from £23,995 to £37,990, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2020 Mercedes-Benz X Class Power, 3.0 diesel pickup, grey. Mileage: 45,000 miles. Price: £36,995, £1,001 more than this car. Dealer: Autoville in Chingford. AskCar page: https://askcar.co.uk/car/mercedes-benz-x-class-2020-799f0952ba7d
• 2020 Mercedes-Benz X Class Power, 3.0 diesel pickup, black. Mileage: 49,459 miles. Price: £24,383, £11,611 less than this car. Dealer: Carbase Bristol in Bristol. AskCar page: https://askcar.co.uk/car/mercedes-benz-x-class-2020-43b85f843eb8
• 2020 Mercedes-Benz X Class Power, 3.0 diesel pickup, black. Mileage: 50,000 miles. Price: £35,995, the same price as this car. Dealer: Oasis Cars in Gravesend. AskCar page: https://askcar.co.uk/car/mercedes-benz-x-class-2020-69356d3a1441

• The nearest: 2020 Mercedes-Benz X Class Power, 3.0 diesel pickup, white, 2 miles from this car. Mileage: 105,000 miles. Price: £25,794, £10,200 less than this car. Dealer: Lokins Car Company in Wickford. AskCar page: https://askcar.co.uk/car/mercedes-benz-x-class-2020-95918637cd3a