Skip advert
Advertisement

Mercedes C350 CDI Estate

We deliver our verdict on diesel flagship estate - does the fresh-faced C-Class have what is takes to compete with German rivals?

Find your Mercedes C-Class
Compare deals from trusted partners on this car and previous models.
Or are you looking to sell your car?
Value my car
Fast, no-nonsense car selling
Value my car

The changes to the C-Class seem subtle, but they add up to a thorough facelift that helps the car compete with the best in the business again. The Estate’s boot is as large as an Audi A4 Avant’s, even if the parcel shelf is a little frustrating, while the reworked V6 diesel engine is impressive. It’s expensive, but combines muscular pace with manageable running costs. Plus, the interior is a significant step forward. It all makes for a very tempting proposition.

Advertisement - Article continues below

The CLS isn’t the only Mercedes turning on the style – the bestselling C-Class has been given a revamp, too! We drove the petrol saloon before – and now we’ve tried the top-spec C350 diesel estate. It arrives in the UK in June, so is it worth waiting for?

The newcomer retains the previous load carrier’s handsome proportions, while the swept-back headlamps, lighter aluminium bonnet and revised bumpers bring it in line with the latest family look.

Inside, the biggest changes soon become apparent. All the cabin materials are improved, and the C-Class now shares the same high-quality feel as more luxurious Mercedes. The three-spoke leather steering wheel is lifted straight from the new CLS, the centre console now curves towards the driver and the COMAND multimedia system is fully integrated into the dash.

There’s also a host of new safety kit, taken from bigger models like the S-Class, with 10 new passive and active systems, including Lane keep assistance and radar-guided cruise control. Once up and running, it’s the C350’s revised 3.0-litre engine that really grabs your attention.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

C Class

2020 Mercedes

C Class

65,864 milesManualPetrol1.6L

Cash £12,148
View C Class
C Class

2018 Mercedes

C Class

64,233 milesAutomaticPetrol2.0L

Cash £10,590
View C Class
C Class

2026 Mercedes

C Class

7,497 milesAutomaticPetrol2.0L

Cash £31,500
View C Class
C Class

2018 Mercedes

C Class

76,500 milesAutomaticDiesel2.1L

Cash £11,994
View C Class

It delivers 31bhp more power, at 261bhp, and there’s 620Nm of torque available from as low as 1,600rpm. This gives the estate crushing performance. It sounds good, too, yet with Mercedes’ BlueEFFICIENCY tech – which incorporates stop-start – fitted as standard, the car is more frugal than before. It claims 47mpg combined fuel economy and emits a company car-friendly 154g/km of CO2.

The updated 7G-Tronic automatic box is as smooth as ever, and although it’s more comfortable slushing through the ratios in auto mode then making quick changes, it’s well suited to the C350’s relaxed character. Similarly, the suspension is geared towards comfort – even in the Sport version that most UK buyers opt for – and it makes for capable rather than thrilling progress.

As a practical estate, the C-Class is less successful. The load bay provides a generous 485 litres of space with the seats in place, but because the parcel shelf is screwed to the backs, freeing up the maximum 1,500-litre capacity is a tricky and time-consuming operation.

This isn’t the only niggle. The rear bench is slightly firm and uncomfortable, and the COMAND control system still isn’t as intuitive as Audi’s MMI set-up. These gripes take some of the shine off an otherwise very appealing package. But while BMW and Audi both have fresh mid-sized saloons waiting in the wings, for now, the new C-Class has put itself ahead of the pack.

Rival: BMW 335d Touring
The 3-Series is starting to show its age – but the 335d strikes a better overall balance between ride comfort and driving fun than the C-Class. Yet it’s not as cheap, clean, spacious and upmarket as the latest Mercedes.

Skip advert
Advertisement

New & used car deals

Mercedes C Class

Mercedes C Class

RRP £32,880Used from £6,150
Audi A5

Audi A5

RRP £42,760Avg. savings £4,473 off RRP*Used from £14,495
BMW 3 Series

BMW 3 Series

RRP £35,780Avg. savings £8,405 off RRP*Used from £11,795
Dacia Spring

Dacia Spring

RRP £14,995Avg. savings £2,785 off RRP*Used from £10,000
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Have you considered?

Long-term test: Audi A5 Avant TDI quattro S Line
Audi A5 Avant TDI quattro S Line - garden centre header

Long-term test: Audi A5 Avant TDI quattro S Line

Long-term tests
8 May 2026
Cupra Leon review
Cupra Leon - front cornering

Cupra Leon review

In-depth reviews
5 May 2026
Used Dacia Jogger (Mk1, 2021-date) buyer's guide: great value new, even better used
Used Dacia Jogger - front

Used Dacia Jogger (Mk1, 2021-date) buyer's guide: great value new, even better used

Used car tests
28 Mar 2026

Most Popular

New Ford Escort XR3i Tolman Edition brings the 80s hot hatch up to date
Ford Escort XR3i Tolman Edition - front static

New Ford Escort XR3i Tolman Edition brings the 80s hot hatch up to date

British-based restomod specialist Tolman has revealed its ‘new’ Ford Escort XR3i
News
1 Jun 2026
Nissan and Chery agree to build Chinese cars in the UK
Trade

Nissan and Chery agree to build Chinese cars in the UK

Nissan could start building Chery and potentially even Jaecoo and Omoda cars from 2027
News
3 Jun 2026
Honda backs its own legendary reliability with new 8-year warranty
Honda Civic - front cornering

Honda backs its own legendary reliability with new 8-year warranty

Legendary reliability doesn’t always translate to buyers, but a nice chunky warranty does
News
1 Jun 2026