Mercedes plots three-cylinder diesel engine

Exclusive: Modular engine range in new E-Class could lead to efficient three-cylinder diesel

Mercedes E-Class - show front quarter

Mercedes has expressed an interest in introducing downsized three-cylinder engines as part of its new modular diesel family, Auto Express can exclusively reveal.

Bosses at the company had previously ruled out launching the three-cylinder turbo due to concerns surrounding refinement. However, the new modular diesel which debuted in the new E-Class as a 2.0-litre four-cylinder could be developed to overcome this issue.

“Diesel is our weapon for the future, to help us reduce CO2 emissions,” Bernhard Heil, head of powertrain development at Mercedes, told Auto Express. “We will see different variants of the four-cylinder, you will see a lot more to come, but you will also see more cylinder numbers.

“We could also derive a three-cylinder from this [engine] family, no doubt. It could be an option – because in future there might come electrification where it might make sense to have a three-cylinder. Depending on the installed electric power, you could avoid [having to fit] an additional balancer shaft.”

Heil also hinted that following the introduction of the modular diesel engine family will be a modular petrol engine range, too. “I don’t want to tell the entire story,” he added, “but if we are talking about an engine family that covers all our engines for our C-Class, B-Class, S-Class and M-Class [GLS] cars, and all that stuff then…”

Mercedes has invested over 2.6billion Euros (£2.01billion) in development and production of its new modular diesel engine family, plus 500million Euros (£388m) in a new lithium-ion battery factory in Germany.

Bosses also confirmed a new plug-in hybrid diesel will be introduced to the E-Class range, to sit alongside the petrol-electric E 350e.

What do you think of Mercedes' three-cylinder engine plans? Let us know below...

Recommended

Mercedes-Maybach EQS SUV concept to be revealed at Munich Motor Show
Mercedes Maybach EQS SUV
Maybach

Mercedes-Maybach EQS SUV concept to be revealed at Munich Motor Show

Mercedes will unveil a new Maybach concept at Munich this year, which is expected to morph into flagship version of the upcoming EQS SUV
29 Jul 2021
New 2022 Mercedes EQS SUV spied in lighter camouflage
Mercedes EQS SUV
Mercedes

New 2022 Mercedes EQS SUV spied in lighter camouflage

Mercedes has announced the EQS SUV will make its debut next year – and there’s a Maybach version in the pipeline
28 Jul 2021
Mercedes confirms EQG electric G-Class for 2024 and Maybach EQS
Mercedes G-Class
Mercedes

Mercedes confirms EQG electric G-Class for 2024 and Maybach EQS

Mercedes will launch a pure-electric version of the G-Class in 2024, and there’s a Maybach-badged version of the EQS SUV in the pipeline
26 Jul 2021
New Mercedes EQE SUV confirmed for launch in 2022
Mercedes EQE
Mercedes

New Mercedes EQE SUV confirmed for launch in 2022

Mercedes has announced it will launch the pure-electric EQE SUV next year, and our exclusive images preview how it could look
26 Jul 2021

Most Popular

New Dacia Duster facelift priced from £13,995
Dacia Duster facelift - front
Dacia Duster

New Dacia Duster facelift priced from £13,995

The Dacia Duster has been updated for 2021 with subtle design tweaks and a new eight-inch infotainment screen
2 Aug 2021
SEAT Ateca and Tarraco SUVs given small updates for 2021
SEAT Ateca
SEAT Ateca

SEAT Ateca and Tarraco SUVs given small updates for 2021

The SEAT Ateca and SEAT Tarraco get extra tech as standard and a range of cosmetic upgrades
3 Aug 2021
New Renault Kangoo 2021 review
Renault Kangoo Van - front
Renault Kangoo Van

New Renault Kangoo 2021 review

We get an early drive of the new Renault Kangoo van
3 Aug 2021