Mercedes-Benz Group engines

Talking about Mercedes-Benz Group is talking about one of the broadest mechanical histories in the European car industry. Over the last few decades the brand has developed petrol, diesel, hybrid and electric engines that have coexisted in different stages and that show very clearly the evolution of Mercedes, from the four-cylinder Kompressor units of the nineties to the new electric generation with EQ technology.

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Mercedes-Benz Group petrol engines

• 1.8 petrol Kompressor (1992–2015)
• 2.0 naturally aspirated / Kompressor petrol (1992–2006)
• 2.3 petrol Kompressor (1992–2003)
• 4.3 / 5.0 V8 petrol (1998–2006)
• 5.5 V8 petrol (1998–2020)
• 1.6 turbo petrol (2002–present)
• 2.5 V6 petrol (2004–2017)
• 3.0 V6 petrol (2004–2023)
• 3.5 V6 petrol (2004–2018)
• 4.7 V8 petrol (2010–2020)
• 2.0 turbo petrol (2011–present)
• 4.0 V8 biturbo (2015–present)

1.8 petrol Kompressor (1992–2015)

The 1.8 petrol Kompressor is one of the most recognisable Mercedes configurations of the nineties and two-thousands. This block starts with the M111 family, launched in 1992, and later continues with the handover to the M271.

It was an especially important engine in the brand’s mid-range and entry ranges, with a strong presence in models such as the C-Class, CLK or SLK.

2.0 naturally aspirated / Kompressor petrol (1992–2006)

The 2.0 petrol was another of the classic pillars of Mercedes before the definitive expansion of the modern turbo. Its main base is the M111 family, produced between 1992 and 2003.

This section groups both naturally aspirated versions and Kompressor variants, which makes it a good way to explain the transition between the more traditional petrol engines from Mercedes and the later generations.

2.3 petrol Kompressor (1992–2003)

The 2.3 petrol Kompressor occupies a very recognisable place in Mercedes’ recent history. Its chronology is closely tied to the M111 family, whose production ran between 1992 and 2003.

For years it was an engine associated with an interesting balance of smoothness, performance and character.

4.3 / 5.0 V8 petrol (1998–2006)

Here we enter the territory of the great naturally aspirated Mercedes V8s, an essential part of the brand’s mechanical identity. This block belongs mainly to the M113 era, present in the 1998–2006 window for these displacements.

Both the 4.3 and the 5.0 represent a time when Mercedes was still betting on generous displacements, progressive power delivery and a very characteristic feeling of mechanical solidity. They are engines especially remembered for their durability and for their presence in many emblematic models.

5.5 V8 petrol (1998–2020)

Few displacements carry as much symbolic weight at Mercedes as the 5.5 V8 petrol. It spans the M113 5.4 stage at the end of the nineties through to the technical environment of the modern V8s that run until 2020.

It is one of those configurations that immediately point to upper ranges, powerful versions and, in many cases, also to the AMG universe.

1.6 turbo petrol (2002–present)

Over time, Mercedes left behind the stage most marked by the supercharger and entered a new generation of turbocharged engines. The first major reference here is the M271, built from 2002, and later this block links to later families with the same philosophy.

This section works as a bridge between the Mercedes of the Kompressor petrol engines and the modern Mercedes of turbo four-cylinders.

2.5 V6 petrol (2004–2017)

The 2.5 V6 petrol belongs to the stage when Mercedes consolidated the V6 as one of its reference configurations for the mid and upper range. The key family here is the M272, produced between 2004 and 2017.

It was an option for those looking for a higher level of refinement versus the four-cylinders, without yet jumping to larger displacements. Although it is less visible today than other engines in the brand’s popular image, it has a clear role in the evolution of Mercedes.

3.0 V6 petrol (2004–2023)

The 3.0 V6 petrol is one of the most important displacements in modern Mercedes. This block starts with the M272 from 2004 and continues with the M276, whose production runs until 2023 in its 3.0 litre variants.

It has appeared in saloons, SUVs, coupés and more premium-oriented models, working as a very solid mid option between the turbo four-cylinders and the large V8s from the house.

3.5 V6 petrol (2004–2018)

For years the 3.5 V6 petrol was one of the most representative configurations from Mercedes in its upper-mid and upper ranges. It starts with the M272 from 2004 and later links to the M276 DE35, produced between 2010 and 2018.

It was associated with a clearly refined, comfortable and powerful approach, very much in line with what is traditionally expected of a large saloon or a premium SUV from Mercedes.

2.0 turbo petrol (2011–present)

The 2.0 turbo petrol is one of the great backbones of contemporary Mercedes. This block fits mainly with the M270/M274 generation, in production since 2011, and with later engines of the same philosophy.

Here we already find a fully modern Mercedes, with engines that have served as a base for a large part of the range and that allow a wide spread of outputs, configurations and technical evolutions.

4.7 V8 petrol (2010–2020)

The 4.7 V8 petrol represents a more modern phase in the evolution of Mercedes. The clear reference here is the M278, produced between 2010 and 2020.

4.0 V8 biturbo (2015–present)

The 4.0 V8 biturbo already belongs to contemporary Mercedes and, above all, to the brand’s most current performance image. This block belongs to the AMG V8 generation associated with the M177 and M178 families, active from 2015 onwards.

It is an engine tied to a new stage in which performance lives alongside much more advanced engineering and a full update of the V8 idea at Mercedes-AMG.

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Mercedes-Benz Group diesel engines

• 2.2 CDI diesel (1998–2010)
• 3.0 V6 diesel (2005–2021)
• 2.1 CDI diesel (2008–present)
• 1.6 diesel (2016–present)
• 2.0 diesel (2016–present)
• 3.0 inline-six diesel (2017–present)

2.2 CDI diesel (1998–2010)

The 2.2 CDI diesel is one of the most important mechanical families of modern Mercedes. The main names here are OM611 and OM646: the first was produced between 1998 and 2006, and the second between 2002 and 2010.

For many years it was a clear reference inside the brand, both for its spread across different models and for its role in consolidating Mercedes diesel in the common rail era.

3.0 V6 diesel (2005–2021)

The 3.0 V6 diesel is one of the great names in modern Mercedes diesel. This block is the OM642, produced from 2005 to 2021.

For years it was one of the brand’s most valued engines for its mix of torque, refinement, long-distance ability and presence in a wide variety of higher-level models.

2.1 CDI diesel (2008–present)

Although commercially it is often folded into the 2.2 CDI universe, the 2.1 CDI diesel deserves its own entry. The main reference here is the OM651, introduced in 2008 and still current.

It was a very widespread engine in the 2010s and had a huge presence in saloons, estates, SUVs and even light commercial vehicles.

1.6 diesel (2016–present)

The 1.6 diesel belongs to a more recent stage of the Mercedes range. This block fits mainly with the OM654 family, introduced in 2016, which had 1.6 and 2.0 litre variants.

It is not one of the brand’s most iconic engines, but it does matter for understanding the modern reorganisation of the diesel offer.

2.0 diesel (2016–present)

The 2.0 diesel represents the new generation of four-cylinder diesel engines from Mercedes. Again, the base family here is the OM654, introduced in 2016.

It is a clear evolution versus earlier blocks, with a more modern architecture and a sharper focus on emissions, efficiency and refinement.

3.0 inline-six diesel (2017–present)

The 3.0 inline-six diesel represents the return of a classic Mercedes architecture reinterpreted with modern technology. This block starts with the major engine renewal presented for the 2017-onwards stage.

It is an engine associated with the top of the range and with an idea of refinement closely aligned with the brand’s historical tradition.

Mercedes-Benz Group hybrid versions

• Petrol plug-in hybrids (2014–present)
• 48 V mild hybrids (2017–present)
• Diesel plug-in hybrids (2018–present)

Petrol plug-in hybrids (2014–present)

Petrol plug-in hybrids deserve their own section inside Mercedes-Benz Group. As a general block, their commercial start can be placed in 2014, when Mercedes launched the S 500 Plug-In Hybrid, the first major milestone of this plug-in stage.

Later this formula spread to key models in the range, becoming one of the central pieces of the transition between combustion engines and electric mobility.

48 V mild hybrids (2017–present)

Mercedes-Benz has added 48-volt mild-hybrid systems to its recent range, based on solutions such as the integrated starter generator. This block sits from 2017, starting with the new engine generation launched in the S-Class facelift of that stage.

These are not plug-in hybrids, but they are a technology that already forms part of the mechanical architecture of many current Mercedes models, in both petrol and diesel.

Diesel plug-in hybrids (2018–present)

Mercedes has also had a relevant presence of diesel plug-in hybrids in its recent range. The correct start of this block is 2018, when the brand announced the launch of its diesel plug-in hybrids for European customers.

Mercedes-Benz Group electric versions

• First Mercedes-EQ electric stage (2019–present)
• Compact electrics (2021–present)
• Mid-size and executive electrics (2021–present)
• Luxury and high-performance electrics (2021–present)
• New electric generation (2025–present)

First Mercedes-EQ electric stage (2019–present)

Although the Mercedes-EQ sub-brand was presented in 2016, the first Mercedes-EQ to reach the road was the EQC, in the 2019-onwards stage.

This block marks the start of the modern electric offensive from Mercedes-Benz as a clearly differentiated family inside the brand.

Compact electrics (2021–present)

This is where the compact electrics of the new Mercedes-EQ era fit, with the EQA as a clear reference from 2021.

Mid-size and executive electrics (2021–present)

Mercedes extended its electric strategy to higher segments from 2021, inside a product offensive that covered executive saloons and SUVs.

Luxury and high-performance electrics (2021–present)

The key name here is the EQS. Mercedes defines it as its first fully electric luxury saloon, presented in 2021 on an architecture specific to luxury and executive electrics.

New electric generation (2025–present)

Current Mercedes is already in a new phase of electric offensive. Its 2025 annual report highlights the launch of the new CLA with EQ Technology inside the largest product programme in the company’s recent history.

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