The PSA ES/L engine is a V6

petrol engine A petrol engine (gasoline engine in American English) is an internal combustion engine designed to run on petrol (gasoline). Petrol engines can often be adapted to also run on fuels such as liquefied petroleum gas and ethanol blends (such as ''E ...

used in automotive applications. It was co-developed by the

PSA Group The PSA Group (), legally known as Peugeot S.A. (Peugeot Société Anonyme, trading as Groupe PSA; formerly known as PSA Peugeot Citroën from 1991 to 2016) was a French multinational automotive manufacturing company which produced automobiles ...

(

Peugeot Peugeot (, , ) is a French brand of automobiles owned by Stellantis. The family business that preceded the current Peugeot companies was founded in 1810, with a steel foundry that soon started making hand tools and kitchen equipment, and the ...

and

Citroën Citroën () is a French automobile brand. The "Automobiles Citroën" manufacturing company was founded in March 1919 by André Citroën. Citroën is owned by Stellantis since 2021 and previously was part of the PSA Group after Peugeot acquired ...

) and

Renault Groupe Renault ( , , , also known as the Renault Group in English; legally Renault S.A.) is a French multinational automobile manufacturer established in 1899. The company produces a range of cars and vans, and in the past has manufactured ...

to replace the outdated

V6 PRV engine The V6 PRV engine is an automobile petrol V6 engine that was developed jointly by Peugeot, Renault and Volvo Cars – and sold from 1974 to 1998. It was gradually replaced after 1994 by another joint PSA-Renault design, known as the ''ES'' engi ...

. It was introduced in 1997 with the

Peugeot 406 The Peugeot 406 is a large family car that was produced by French automaker Peugeot between 1995 and 2004. Available in saloon, estate and coupé bodystyles with a choice of petrol or turbodiesel engines, the 406 replaced the Peugeot 405 in P ...

Coupé A coupe or coupé (, ) is a passenger car with a sloping or truncated rear roofline and two doors. The term ''coupé'' was first applied to horse-drawn carriages for two passengers without rear-facing seats. It comes from the French past parti ...

. It is designed and manufactured by the company "Française de Mécanique" for PSA and Renault. In PSA, the engine is known as the ES engine, in Renaults, the engine is known as the L engine. Unlike the PRV V6, which was a 90° engine because it was developed from a V8 project, the ES/L has a traditional 60° V-angle. It is constructed entirely in

aluminum Aluminium (aluminum in American and Canadian English) is a chemical element with the symbol Al and atomic number 13. Aluminium has a density lower than those of other common metals, at approximately one third that of steel. It has ...

, and available only in

DOHC An overhead camshaft (OHC) engine is a piston engine where the camshaft is located in the cylinder head above the combustion chamber. This contrasts with earlier overhead valve engines (OHV), where the camshaft is located below the combustion c ...

24-valve format. Its sole iteration, the ES9 (PSA) or L7X (Renault), has a displacement of , slightly less than the 3.0 L variant of the PRV. Bore and

stroke A stroke is a medical condition in which poor blood flow to the brain causes cell death. There are two main types of stroke: ischemic, due to lack of blood flow, and hemorrhagic, due to bleeding. Both cause parts of the brain to stop functionin ...

is . A 3.3 L version was initially planned as well, but did not see production due to decreasing demand in V6

s in Europe and Renault's switch to

Nissan , trade name, trading as Nissan Motor Corporation and often shortened to Nissan, is a Japanese multinational corporation, multinational Automotive industry, automobile manufacturer headquartered in Nishi-ku, Yokohama, Japan. The company sells ...

-sourced V6 after its alliance with the Japanese carmaker. Initially, the ESL produced in accordance with German and French insurance category limits in force at the time for engines under 3 litres.(The BMW 2.8 and Audi 2.8 produced the same figure circa ) In 2000,

Porsche Dr. Ing. h.c. F. Porsche AG, usually shortened to Porsche (; see #Pronunciation, below), is a German automobile manufacturer specializing in high-performance sports cars, SUVs and sedans, headquartered in Stuttgart, Baden-Württemberg, Germany ...

retuned the Peugeot/Citroën version of the engine introducing

variable valve timing In internal combustion engines, variable valve timing (VVT) is the process of altering the timing of a valve lift event, and is often used to improve performance, fuel economy or emissions. It is increasingly being used in combination with varia ...

on the intake

camshaft A camshaft is a shaft that contains a row of pointed cams, in order to convert rotational motion to reciprocating motion. Camshafts are used in piston engines (to operate the intake and exhaust valves), mechanically controlled ignition systems ...

s varying between 0 and 40 degrees, improving

fuel consumption A fuel is any material that can be made to react with other substances so that it releases energy as thermal energy or to be used for work. The concept was originally applied solely to those materials capable of releasing chemical energy but ...

, low engine speed flexibility for the introduction of the

Peugeot 607 The Peugeot 607 is an executive car produced by the French manufacturer Peugeot from September 1999 to June 2010. The 607, along with the smaller 407, were superseded by the 508 in March 2011. History The 607 was launched in October 1999, to r ...

and

Citroën C5 The Citroën C5 is a large family car (classified as a mid-size crossover since 2021) produced by the French manufacturer Citroën since March 2001, currently at its third generation. It replaced the Citroën Xantia, in the large family car cl ...

. This iteration, called ES9 J4S, can now achieve . In 2005, Peugeot/Citroën slightly upgraded the power to . This version was not used by Renault who was by then focusing on Nissan-developed V6. In 2000,

Tom Walkinshaw Racing Tom Walkinshaw Racing (TWR) was a motor racing team and engineering firm founded in 1976, in Kidlington, near Oxford, England, by touring car racer Tom Walkinshaw. The company initially handled privateer work before entering works touring car r ...

created a competition version for use in the

Renault Clio V6 The Renault Clio V6 Renault Sport is a rear mid-engine, rear-wheel-drive layout sport compact based on the Renault Clio launched in 2001. Designed by France, French automaker Renault the Phase 1 models were built by Tom Walkinshaw Racing (TWR) in ...

. It could achieve a maximum of in racing trim, with a version detuned to for the road car. The road version's power was improved to by

Renault Sport Renault Sport () or Renaultsport, was the motorsport, performance and special vehicles division for Renault-badged cars. Renault Sport was officially established in 1976 as a merger between the Alpine and Gordini competition departments. It wa ...

in 2004.

ES9/L7X

The ES/L V6 has been used in a variety of cars from Citroën, Peugeot and Renault in the executive and luxury segments, namely the

Citroën XM The Citroën XM is a front-engine, front-drive, five-passenger, five-door hatchback noted for its hydropneumatic suspension. Manufactured and marketed by Citroën from 1989 to 2000, with a minor facelift in 1994, XM production reached 333,405 ov ...

Citroën Xantia The Citroën Xantia, pronounced "Zan–ti–a" is a large family car ( D) produced by the French automaker Citroën, and designed by Bertone. Presented to the press in December 1992, the car was produced between 1992 and 2002 in Europe, with a f ...

Citroën C8 The Eurovans are a family of passenger automobiles from the Citroën, Peugeot, Fiat and Lancia marques that were produced at the jointly owned Sevel Nord factory in France. The term ''Eurovan'' was not used by the brands themselves in sales ...

and

Citroën C6 The Citroën C6 is an executive car produced by the French car maker Citroën since 2005. The Citroën C6 was inspired by the Citroën C6 Lignage concept car with a fastback saloon like styling. Inspired by the Citroën C6 Lignage prototype, ...

; the Peugeot 406, 407, 605 and

607 __NOTOC__ Year 607 ( DCVII) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. The denomination 607 for this year has been used since the early medieval period, when the Anno Domini calendar era b ...

; and the

Renault Laguna The Renault Laguna is a large family car that was manufactured and marketed by Renault for 21 years in three body styles: hatchback, coupé, and estate. The first generation Laguna was launched in 1994, the second generation was introduced in 200 ...

(Mk.I and II),

Espace Espace may refer to: *ESPACE, a complexity class in computational complexity theory *Espace musique, a Canadian radio service *Espace 2, a Swiss radio station *Radio Espace, a French radio station *Espace Group, a French media company *Group Espace ...

(Mk.III),

Renault Avantime The Renault Avantime is a grand tourer marketed by the French manufacturer Renault, designed and manufactured by Matra, between 2001 and 2003. As a one-box design without B-pillars, styled by Patrick Le Quément, the Avantime combined the desi ...

Renault Safrane The Renault Safrane is an executive car (E-segment in Europe) designed and built by the French manufacturer Renault from 1992 until 2000. Throughout its production it remained the most expensive and most luxurious Renault available, although it ...

and Clio V6. It was also modified by Venturi into a

twin-turbo Twin-turbo (not to be confused with a twincharger setup, which is a combination of a supercharger and a turbocharger) refers to an engine in which two turbochargers work in tandem to compress the intake fuel/air mixture (or intake air, in the case ...

in the last of their Atlantique 300 Bi-turbo cars. Unlike the PRV, it didn't have much of a career in motorsport, next to the Renault Sport Clio V6 Eurocup the engine was also used by

Courage Courage (also called bravery or valor) is the choice and willingness to confront agony, pain, danger, uncertainty, or intimidation. Valor is courage or bravery, especially in battle. Physical courage is bravery in the face of physical pain, h ...

in the C52 and C60, as a 3.2 L

bi-turbo Twin-turbo (not to be confused with a twincharger setup, which is a combination of a supercharger and a turbocharger) refers to an engine in which two turbochargers work in tandem to compress the intake fuel/air mixture (or intake air, in the case ...

engine, with a max output of . The engines are built by

Sodemo Sodemo Moteurs is a motor vehicle engine tuning company based in Magny-Cours, near Nevers, France, owned by Guillaume Maillard. Formed in 1981, and based within the ground of the Circuit de Nevers Magny-Cours, Sodemo is most associated with the tun ...

PSA

With Renault shifting to the

Nissan VQ engine The VQ is a family of V6 24V automobile engines developed by Nissan with displacements varying from 2.0 L to 4.0 L. It is an aluminum block DOHC 4-valve (per cylinder) design with aluminum heads. It is fitted with Nissan's EGI/ECCS s ...

3.5 L V6, PSA became the sole user of the ES until 2010 when the requirements of

Euro 5 The European emission standards are vehicle emission standards for pollution from the use of new land surface vehicles sold in the European Union and EEA member states and the UK, and ships in EU waters. The standards are defined in a seri ...

emission regulations began; the

Euro 4 The European emission standards are vehicle emission standards for pollution from the use of new land surface vehicles sold in the European Union and EEA member states and the UK, and ships in EU waters. The standards are defined in a ser ...

-only ES engine was no longer available in Europe and replaced by The

turbocharged In an internal combustion engine, a turbocharger (often called a turbo) is a forced induction device that is powered by the flow of exhaust gases. It uses this energy to compress the intake gas, forcing more air into the engine in order to pro ...

Straight-4 A straight-four engine (also called an inline-four) is a four-cylinder piston engine where cylinders are arranged in a line along a common crankshaft. The vast majority of automotive four-cylinder engines use a straight-four layout (with the ...

Prince engine Prince is the codename for a family of straight-four 16-valve all-aluminium gasoline engines with variable valve lift and variable valve timing developed by PSA Peugeot Citroën and BMW. It is a compact engine family of 1.4–1.6 L in disp ...

. Note: All 24-valve with

catalytic converter A catalytic converter is an exhaust emission control device that converts toxic gases and pollutants in exhaust gas from an internal combustion engine into less-toxic pollutants by catalyzing a redox reaction. Catalytic converters are usually ...

References

Sources

Guide des moteurs Peugeot Citroën
(in French)

Française de Mécanique engines ES L V6 engines {{PSA Peugeot Citroën Gasoline engines by model

ES9/L7X

PSA

See also

References

Sources