# PSA EW/DW engine

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Reciprocating internal combustion engine

EW/DW engine Overview Manufacturer PSA Peugeot Citroën Production 1998–present Layout Configuration Straight-four engine Displacement 1.7 L (1,749 cc) 1.9 L (1,868 cc) 2.0 L (1,968 cc) 2.0 L (1,997 cc) 2.2 L (2,179 cc) 2.2 L (2,231 cc) Cylinder bore 82.2 mm (3.24 in) 82.7 mm (3.26 in) 85 mm (3.35 in) 86 mm (3.39 in) Piston stroke 81.4 mm (3.20 in) 88 mm (3.46 in) 96 mm (3.78 in) Valvetrain SOHC 2 valves x cyl. DOHC 4 valves x cyl. with VVT Combustion Turbocharger Variable-geometry with intercooler (some versions) Fuel system Indirect injection Common rail direct injection Gasoline direct injection MPFi Fuel type Petrol, Diesel Cooling system Water-cooled Output Power output 69–203 PS (51–149 kW; 68–200 hp) Torque output 127–370 N⋅m (94–273 lb⋅ft) Emissions Emissions target standard Euro 3 – Euro 6 Emissions control systems Catalytic converter, SCR Chronology Predecessor PSA XU engine (for petrol engines) PSA XUD engine (for diesel engines) BMW M47R (for Land Rover) Successor Prince engine (for petrol engines) Ingenium engine (for diesel engines Jaguar Land Rover only)

The **PSA EW/DW engine** is a family of [straight-4](/source/Straight-4) black-top[1] [automobile](/source/Automobile) engines[2] manufactured by the [PSA Group](/source/PSA_Group) for use in their [Peugeot](/source/Peugeot) and [Citroën](/source/Citro%C3%ABn) automobiles. The EW/DW family was introduced in 1998 as a replacement for the [XU engine](/source/PSA_XU_engine).[3] Some DW engines are produced as part of a [joint-venture](/source/Joint-venture) with [Ford Motor Company](/source/Ford_Motor_Company).

The EW/DW uses many parts from the XU, most notably the [crankshaft](/source/Crankshaft), but is built with lighter materials. The EW name is used for the petrol engines ("e" for *[essence](https://fr.wikipedia.org/wiki/Essence_(hydrocarbure))*) and DW for Diesel engines.

All EWs are [DOHC](/source/DOHC) [multivalve](/source/Multivalve) with displacement from 1.7 to 2.2 L (1,749 to 2,231 cc). They are mainly used for [large family cars](/source/Large_family_car) and [executive cars](/source/Executive_car), as well as [large MPVs](/source/Large_MPV), although the 2.0 L is also used for some [hot hatch](/source/Hot_hatch) models.

The DW started with an [SOHC](/source/SOHC) 2-valve design between 2.0 and 2.0 L (1,968 and 1,997 cc), later receiving DOHC and [four valves per cylinder](/source/Multi-valve#Four_valves) upon the introduction of the 2.2 L in 2000 with the [Citroën C5](/source/Citro%C3%ABn_C5) and [Peugeot 607](/source/Peugeot_607). Turbocharged versions started using [common rail](/source/Common_rail) and received the commercial designation **[HDi](/source/HDi)**. The DW10 served as the basis for the [Ford/PSA engine partnership](/source/Ford_DLD_engine) using second generation common rail and a [variable-geometry turbocharger](/source/Variable-geometry_turbocharger) for the first time on the 2.0 L design.

## DW8

The **DW8** is for all intents and purposes an evolution of the **[XUD9](/source/PSA_XUD#XUD9)** and was the only diesel engine in the family not to feature a turbocharger or common-rail direct injection. It was mainly used in [vans](/source/Van) such as the [Citroën Berlingo](/source/Citro%C3%ABn_Berlingo) and [Peugeot Partner](/source/Peugeot_Partner) but can also be found in more affordable versions of the Peugeot 206 and 306. The DW8 was phased out in 2007 as it does not pass Euro 4 emissions regulations (it is a [Euro 3](/source/Euro_3) engine[1]). The DW8 is matched to the *BE* manual 5-speed and has 127 N⋅m (94 lb⋅ft) of torque.[4] This is known as the 1WZ engine in Toyota vehicles.

**Specifications**

Displacement: 1.9 L (1,868 cc)

Valves: 8 valve, [single overhead cam](/source/Single_overhead_cam)

Bore x Stroke: 82.2 mm × 88 mm (3.24 in × 3.46 in)

Compression Ratio: 23.0:1[5]

Power output: 71 PS (52 kW; 70 hp)

Torque: 127 N⋅m (94 lb⋅ft) at 2500 rpm

Production Start Date: 1 June 2000

Model Output Notes Application DW8 (WJZ) 69 PS (51 kW; 68 hp) Diesel catalyst Citroën Berlingo, Jumpy I & II (up to OPR 09064) / Peugeot 206, 306 mk2, Partner, Expert I & II (up to OPR 09064) DW8 B (WJX) Citroën C15 DW8 B (WJY) Citroën Berlingo, Jumpy I & II (since OPR 09065), Xsara / Peugeot 206, 306 mk2, Partner, Expert I & II (since OPR 09065) Toyota 1WZ 69 PS (51 kW; 68 hp) at 4600 rpm / 125 N⋅m (92 lb⋅ft) at 2500 rpm 2000–2001 8th Generation Toyota Corolla (Europe)[5]

## DW10

The 2.0 L **DW10** was the first PSA Diesel engine to feature [common rail](/source/Common_rail) [direct injection](/source/Fuel_injection#Direct_injection_systems), and was given the commercial designation *HDi*. It has a bore and a stroke of 85 mm × 88 mm (3.35 in × 3.46 in) for a total displacement of 2.0 L (1,997 cc), replacing the [XUD9](/source/PSA_XUD#XUD9) in 1999. It was initially available in 90 PS (66 kW; 89 hp) form, with two valves per cylinder and a non-intercooled turbo. An [intercooler](/source/Intercooler) was added later in the year, boosting power to 109 PS (80 kW; 108 hp).

Initially available in the midsized models, such as the [Citroën Xsara](/source/Citro%C3%ABn_Xsara) and [Xantia](/source/Citro%C3%ABn_Xantia) and [Peugeot 306](/source/Peugeot_306), [406](/source/Peugeot_406) and [Peugeot 206](/source/Peugeot_206) it was soon spread across the PSA range, such as the LCVs, while a 16-valve version(RHW), with 109 PS (80 kW; 108 hp), was used in the large MPVs built in association with [Fiat](/source/Fiat). [Suzuki](/source/Suzuki) was a customer for these powerplants, using them in the European [Vitara](/source/Suzuki_Vitara), [Grand Vitara](/source/Suzuki_Grand_Vitara), and [XL-7](/source/Suzuki_XL-7). Eurovan-based commercial vans, the [Citroën Jumpy](/source/Citro%C3%ABn_Jumpy), [Peugeot Expert](/source/Peugeot_Expert) and [Fiat Scudo](/source/Fiat_Scudo) were available with a 94 PS (69 kW; 93 hp) DW10 BTED engine, which is essentially an intercooled version of the original 90 PS (66 kW; 89 hp) design.

The DW10 was used as the basis for the new family of [Duratorq Diesel engines](/source/Ford_Duratorq_engine) co-developed with [Ford](/source/Ford_Motor_Company) and [Volvo](/source/Volvo_Cars) it is used in the [Focus](/source/Ford_Focus_(second_generation%2C_Europe)), [Kuga](/source/Ford_Kuga), [Mondeo Mk4](/source/Ford_Mondeo_(third_generation)), [Mondeo Mk5](/source/Ford_Mondeo_(fourth_generation)), [C-Max](/source/Ford_C-Max) and [C30](/source/Volvo_C30)/[S40](/source/Volvo_S40)/[V50](/source/Volvo_V50)/[C70](/source/Volvo_C70), besides various Citroën and Peugeot passenger models. The DOHC 16-valve powerplants were mated to a second generation common rail injection system and a [variable-geometry turbocharger](/source/Variable-geometry_turbocharger), pushing power to 136 PS (100 kW; 134 hp) (RHR). It is fitted with a six-speed [manual transmission](/source/Manual_transmission) or six-speed Aisin-[automatic transmission](/source/Automatic_transmission) (in [Citroën C5](/source/Citro%C3%ABn_C5) from summer 2004 onwards).

The **DW10BTED4E5** and **DW10C** are [Euro 5](/source/Euro_5)-compliant, and therefore still available for sale in Europe.[2]

2014 [Euro 6](/source/Euro_6) variant DW10FC and DW10FD introduced [selective catalytic reduction](/source/Selective_catalytic_reduction) emissions control technology.

This engine is known as the 4WZ when installed in Toyota vehicles such as Toyotas [version](/source/Rebadging) of the [Citroën Jumpy](/source/Citro%C3%ABn_Jumpy#Third_generation_(K0;_2016)).

Model Output Notes DW10 ATED / RHS 107 PS (79 kW; 106 hp) common rail Turbo-diesel catalyst+FAP DW10 TD / RHY 90 PS (66 kW; 89 hp) common rail Turbo-diesel no air/air exchanger catalyst DW10 BTED / RHX 95 PS (70 kW; 94 hp) DW10 ATED / RHZ 109 PS (80 kW; 108 hp) common rail Turbo-diesel air/air exchanger catalyst DW10 ATED4 / RHW 109 PS (80 kW; 108 hp) common rail Turbo-diesel 16-valve catalyst DW10 UTED4 / RHK (Base DW10B or DW10C) see 1 120 PS (88 kW; 118 hp) DW10 BTED4 (E5) / RHR 141 PS (104 kW; 139 hp) DW10 BTED4 / RHF 140 PS (103 kW; 138 hp) DW10 C RHE/ RHH / RHC (on HYbrid4) RHE: 152 PS (112 kW; 150 hp), 165 PS (121 kW; 163 hp) DW10 CD AHZ 130 PS (96 kW; 128 hp) DW10 FE / AH01 (Citroën Jumpy and its derivatives, RH02 as AH01) middle 2014 120 PS (88 kW; 118 hp) common rail Turbo-diesel 16-valve catalyst SCR DW10 FD 100KW / AH01 135 PS (99 kW; 133 hp) DW10 FD / AH01 150 PS (110 kW; 148 hp) DW10 FC / AH01, AH02 180 PS (132 kW; 178 hp)

## DW12

The 2.2 L (2,179 cc) **DW12** has a bore and a stroke of 85 mm × 96 mm (3.35 in × 3.78 in). Unlike the initial DW10 designs, it was fitted with 16 valves from the beginning, and made its debut in the 2000 with the [Citroën C5](/source/Citro%C3%ABn_C5), [Peugeot 406](/source/Peugeot_406), Peugeot 406 Coupe, and [Peugeot 607](/source/Peugeot_607), being used only in the larger models. In 2006 it was added to the PSA/Ford family, with power reaching 170 PS (125 kW; 168 hp). [Peugeot](/source/Peugeot) added the engine as an option for the [Peugeot 407](/source/Peugeot_407) and the now facelifted [607](/source/Peugeot_607), between the 2.0 DW10 and 2.7 DT17. [Land Rover](/source/Land_Rover) used this engine in the [Freelander 2](/source/Land_Rover_Freelander#2), [Discovery Sport](/source/Land_Rover_Discovery_Sport) and [Range Rover Evoque](/source/Range_Rover_Evoque#1). Available as both 160ps or 190ps, Peugeot 4007 and Citroën C-Crosser used the same motor. The unit was used in a longitudinal mounting in the Jaguar XF from 2012 until 2015 in 163 PS or 200 PS, though some early 2012 cars were available as 190 PS. A different 2.2 L engine, Ford's [ZSD-422](/source/Ford_Duratorq_engine) with a displacement of 2.2 L (2,198 cc) was used in the Citroën and Peugeot LCV range of vans.

The **DW12C** is a [Euro 5](/source/Euro_5)-compliant, high-output version.[2]

Model Output Notes DW12 UTED 100 PS (74 kW; 99 hp) common rail Turbo-diesel 8-Valve for Citroën Jumper and Peugeot Boxer vans DW12 TED4 128–133 PS (94–98 kW; 126–131 hp) Common rail Turbo-diesel 16-valve DW12 BTED4 177 PS (130 kW; 175 hp) DW12 C 204 PS (150 kW; 201 hp) DW12 CTED4 180 CV Common rail Turbo-diesel 16-valve for Peugeot Landtrek

The **DW12 RU** is an updated version that meets [Euro 6d](/source/Euro_6d) emission standards, and is intended for light commercial vehicle applications where it replaces the DW10 FU.[6] The [Citroën Jumper](/source/Citro%C3%ABn_Jumper) and [Peugeot Boxer](/source/Peugeot_Boxer) (2019–) are powered by this engine. It comes in power ratings of 120 PS/300 Nm, 140 PS/340 Nm and 165 PS/370 Nm.[7]

### In India

The DW12 engine has been manufactured in India by [Tata Motors](/source/Tata_Motors) and [Mahindra and Mahindra](/source/Mahindra_and_Mahindra), with the same 2.2 L (2,179 cc) displacement.

Tata used DW12 in their vehicles like [Tata Safari](/source/Tata_Safari), [Tata Hexa](/source/Tata_Hexa), Aria, and Xenon. They launched the engine in the 2007 Safari as the **2.2 Dicor**. They continued to use it in various models until 2020 when [Bharat Stage 6](/source/Bharat_Stage_6) emission standards forced Tata to discountinue it.

Mahindra re-engineered the engine together with AVL of Austria, calling the new generation the **mHawk**. It was introduced in 2009 with the [Mahindra Scorpio](/source/Mahindra_Scorpio) CRDe. It is [intercooled](/source/Intercooler) and features a [variable-geometry turbocharger](/source/Variable-geometry_turbocharger) (VTG), delivering maximum power of 140 PS (138 bhp; 103 kW) and 320 N⋅m (236 lb⋅ft) of torque. A Bosch common-rail direct-injection system with solenoid injectors is used. The mHawk is equipped with chain-driven overhead camshafts and hydraulic lash adjusters; its compression ratio ranges from 16.5:1 to 18.5:1 depending on the model. It was then installed on the Scorpio pickup verson, and in 2012 it was carried over to the [Mahindra Xylo](/source/Mahindra_Xylo). It has been available on the [Mahindra XUV500](/source/Mahindra_XUV500) with a fifth generation VGT since 2011, updated to sixth generation e-VGT in 2018. In 2020 Mahindra revised the engine to meet [BS6](/source/Bharat_Stage_6) and then BS6.2 in 2023. Called the second geenration mHawk, this was launched in the [Mahindra Thar](/source/Mahindra_Thar), [XUV700](/source/XUV700), [Scorpio](/source/Mahindra_Scorpio), and later on other models as well.

## EW7

The **EW7** has a [bore](/source/Bore_(engine)) and a [stroke](/source/Stroke_(engine)) of 82.7 mm × 81.4 mm (3.26 in × 3.20 in), for a displacement of 1.7 L (1,749 cc). It was used as an entry-level engine for the [Citroën C5](/source/Citro%C3%ABn_C5) and [Citroën Xsara Picasso](/source/Citro%C3%ABn_Xsara_Picasso), the [Peugeot 406](/source/Peugeot_406), and the [Peugeot 407](/source/Peugeot_407).

As of January 1, 2011 and the requirements of [Euro 5](/source/Euro_5) emission regulations, the EW7 ([Euro 4](/source/Euro_4) only[1]) is no longer available in Europe. For most use, it was replaced by the 1.6 litre turbocharged version of the [Prince engine](/source/Prince_engine#turbo).

Model Code Output Notes EW7 J4 6FZ 117 PS (86 kW; 115 hp) 16-valve catalyst EW7 A 6FY 125 PS (92 kW; 123 hp)

## EW10

The **EW10** has a bore and a stroke of 85 mm × 88 mm (3.35 in × 3.46 in), for a displacement of 2.0 L (1,997 cc). It is used widely throughout the PSA Group, including the [Citroën C4](/source/Citro%C3%ABn_C4), [C5](/source/Citro%C3%ABn_C5), [Citroën Xsara](/source/Citro%C3%ABn_Xsara), [Citroën Xsara Picasso](/source/Citro%C3%ABn_Xsara_Picasso) and [Peugeot 206](/source/Peugeot_206), [307](/source/Peugeot_307) and [407](/source/Peugeot_407). A [gasoline direct injection](/source/Gasoline_direct_injection) variant, called EW10 D and marketed as **HPi**, was briefly used in the Citroën C5 and [Peugeot 406](/source/Peugeot_406) starting in 2001, but was discontinued in 2003 due to low sales.

The EW10 J4S variant is a high performance version used in the 206 GTI 180, 206 RC, 307 Féline, 307 cc and C4 VTS. Power was raised to 177 PS (130 kW; 175 hp), although the two French brands round it up to 180 PS (132 kW; 178 hp) in advertising. EW10 A is a further development of the EW10 J4, presenting somewhat higher power and torque due to the introduction of [Variable valve timing](/source/Variable_valve_timing) (VVT). [Fuel consumption](/source/Fuel_consumption_in_automobiles) is also decreased. Power is 140 PS (103 kW; 138 hp) at 6000 rpm and torque 200 N⋅m (148 lb⋅ft) at 4000 rpm. Citroën usually states 143 PS (105 kW; 141 hp) and Peugeot 140 PS for the same 140 PS (103 kW; 138 hp) engine.

As of January 1, 2010 and the requirements of [Euro 5](/source/Euro_5) emission regulations, the EW10 ([Euro 4](/source/Euro_4) only[1]) is no longer available in Europe. For most use, it is replaced by the 1.6 litre turbocharged version partially based on the [Prince engine](/source/Prince_engine#turbo).

Model Code Output Notes EW10 D RLZ 140 PS (103 kW; 138 hp) Gasoline direct injection catalyst EW10 J4 RFN 136 PS (100 kW; 134 hp) 16-valve catalyst EW10 J4 RFR 135 PS (99 kW; 133 hp) EW10 J4S RFK 177 PS (130 kW; 175 hp) 16-valve VVT catalyst EW10 A RFJ 143 PS (105 kW; 141 hp)

## EW12

The **EW12** was introduced to replace the low-pressure turbo variant of the XU10. It has a bore and stroke of 86 mm × 96 mm (3.39 in × 3.78 in), for a displacement of 2.2 L (2,231 cc). Citroën only uses it on the [C8](/source/Citro%C3%ABn_C8) MPV, while Peugeot, which has more a sporty image, uses it in the [406](/source/Peugeot_406) SRi and 406 Coupe, [407](/source/Peugeot_407), the [607](/source/Peugeot_607) executive model and [807](/source/Peugeot_807) MPV.

As of January 1, 2011 and the requirements of Euro 5 emission regulations, the EW12 (Euro 4 only[1]) is no longer available in Europe. It was replaced by the 1.6 litre turbocharged [Prince engine](/source/Prince_engine#turbo).

Model Code Output Notes EW12 J4 3FZ 158 PS (116 kW; 156 hp) 16-valve catalyst EW12 J4 3FY 163 PS (120 kW; 161 hp)

## See also

- [List of PSA engines](/source/List_of_PSA_engines)

- [Ford Duratorq engine](/source/Ford_Duratorq_engine)

- [PSA HDi engine](/source/PSA_HDi_engine)

## References

1. ^ [***a***](#cite_ref-Peugeot_Citroën_Moteurs:_Petrol_car_engines_1-0) [***b***](#cite_ref-Peugeot_Citroën_Moteurs:_Petrol_car_engines_1-1) [***c***](#cite_ref-Peugeot_Citroën_Moteurs:_Petrol_car_engines_1-2) [***d***](#cite_ref-Peugeot_Citroën_Moteurs:_Petrol_car_engines_1-3) [***e***](#cite_ref-Peugeot_Citroën_Moteurs:_Petrol_car_engines_1-4) ["Petrol car engine — Peugeot Citroën Moteurs"](https://web.archive.org/web/20101127055633/http://www.peugeot-citroen-moteurs.fr/en-gb/our-products/engines/petrol-engines). *www.peugeot-citroen-moteurs.fr*. Archived from [the original](http://www.peugeot-citroen-moteurs.fr/en-gb/our-products/engines/petrol-engines) on November 27, 2010.

1. ^ [***a***](#cite_ref-Peugeot_Citroën_Moteurs:_Car_diesel_engines_2-0) [***b***](#cite_ref-Peugeot_Citroën_Moteurs:_Car_diesel_engines_2-1) [***c***](#cite_ref-Peugeot_Citroën_Moteurs:_Car_diesel_engines_2-2) ["Peugeot Citroën Moteurs: Car diesel engines"](https://web.archive.org/web/20110721015708/http://www.peugeot-citroen-moteurs.fr/en-gb/our-products/engines/automobile-diesel-engine). Archived from [the original](http://www.peugeot-citroen-moteurs.fr/en-gb/our-products/engines/automobile-diesel-engine) on 21 July 2011.

1. **[^](#cite_ref-3)** ["Les dossiers Autoweb France"](http://www.autoweb-france.com/indexsanspub.php?rub=22&cat=3). *www.autoweb-france.com*.

1. **[^](#cite_ref-4)** ["Manual gearboxes — Peugeot Citroën Moteurs"](https://web.archive.org/web/20111003134539/http://www.peugeot-citroen-moteurs.fr/en-gb/our-products/Gearboxes/manual#40). October 3, 2011. Archived from [the original](http://www.peugeot-citroen-moteurs.fr/en-gb/our-products/Gearboxes/manual#40) on 2011-10-03.

1. ^ [***a***](#cite_ref-:0_5-0) [***b***](#cite_ref-:0_5-1) ["New Corolla in the UK Market"](https://web.archive.org/web/20210414140635/https://media.toyota.co.uk/wp-content/files_mf/1432202518Corollarevisedgen8UKlaunch2000.pdf) (PDF) (Press release). The Quadrangle, Redhill, Surrey: Toyota GB. January 2000. Archived from [the original](https://media.toyota.co.uk/wp-content/files_mf/1432202518Corollarevisedgen8UKlaunch2000.pdf) (PDF) on 2021-04-14. Retrieved 2021-04-14.

1. **[^](#cite_ref-6)** ["PSA engine factory in Trémery"](https://www.aboutcampbtob.eu/company-news-psa/). *Aboutcamp BtoB*. 2019-03-22. Retrieved 2020-07-14.

1. **[^](#cite_ref-7)** ["CITROËN JUMPER, CARACTÉRISTIQUES TECHNIQUES ET ÉQUIPEMENTS"](https://media.citroen.fr/file/01/9/279019.pdf) (PDF). Retrieved 2020-07-14.

## External links

- ["PEUGEOT CITROËN PSA specific DTC (fault codes)"](https://web.archive.org/web/20160403220935/http://mavericktechnology.co.uk/technical/peugeot-citroen-psa-specific-dtc-fault-codes). Archived from [the original](https://www.mavericktechnology.co.uk/technical/peugeot-citroen-psa-specific-dtc-fault-codes) on 2016-04-03.

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Adapted from the Wikipedia article [PSA EW/DW engine](https://en.wikipedia.org/wiki/PSA_EW%2FDW_engine) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/PSA_EW%2FDW_engine?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.