# PSA EW/DW engine

The PSA EW/DW engine is a family of straight-4 black-top automobile engines manufactured by the PSA Group for use in their Peugeot and Citroën automobiles. The EW/DW family was introduced in 1998 as a replacement for the XU engine. Some DW engines are produced as part of a joint-venture with Ford Motor Company.
The EW/DW uses many parts from the XU, most notably the crankshaft, but is built with lighter materials. The EW name is used for the petrol engines ("e" for essence) and DW for Diesel engines.
All EWs are DOHC multivalve with displacement from 1.7 to 2.2 L (1,749 to 2,231 cc). They are mainly used for large family cars and executive cars, as well as large MPVs, although the 2.0 L is also used for some hot hatch models.
The DW started with an 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 upon the introduction of the 2.2 L in 2000 with the Citroën C5 and Peugeot 607. Turbocharged versions started using common rail and received the commercial designation HDi. The DW10 served as the basis for the Ford/PSA engine partnership using second generation common rail and a 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 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 such as the Citroën Berlingo and 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 engine). The DW8 is matched to the BE manual 5-speed and has 127 N⋅m (94 lb⋅ft) of torque. This is known as the 1WZ engine in Toyota vehicles.
Specifications
Displacement: 1.9 L (1,868 cc)
Valves: 8 valve, single overhead cam
Bore x Stroke: 82.2 mm × 88 mm (3.24 in × 3.46 in)
Compression Ratio: 23.0:1
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) | 69 PS (51 kW; 68 hp) | Diesel catalyst | Citroën C15 |
| DW8 B (WJY) | 69 PS (51 kW; 68 hp) | Diesel catalyst | 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 | Diesel catalyst | 2000–2001 8th Generation Toyota Corolla (Europe) |

## DW10

The 2.0 L DW10 was the first PSA Diesel engine to feature common rail direct injection, 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 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 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 and Xantia and Peugeot 306, 406 and 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. Suzuki was a customer for these powerplants, using them in the European Vitara, Grand Vitara, and XL-7. Eurovan-based commercial vans, the Citroën Jumpy, Peugeot Expert and 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 co-developed with Ford and Volvo it is used in the Focus, Kuga, Mondeo Mk3, Mondeo Mk4, C-Max and C30/S40/V50/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, pushing power to 136 PS (100 kW; 134 hp) (RHR). It is fitted with a six-speed manual transmission or six-speed Aisin-automatic transmission (in Citroën C5 from summer 2004 onwards).
The DW10BTED4E5 and DW10C are Euro 5-compliant, and therefore still available for sale in Europe.
2014 Euro 6 variant DW10FC and DW10FD introduced selective catalytic reduction emissions control technology.
This engine is known as the 4WZ when installed in Toyota vehicles such as Toyotas version of the Citroën Jumpy.
| 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) | common rail Turbo-diesel 16-valve catalyst |
| DW10 BTED4 (E5) / RHR | 141 PS (104 kW; 139 hp) | common rail Turbo-diesel 16-valve catalyst |
| DW10 BTED4 / RHF | 140 PS (103 kW; 138 hp) | common rail Turbo-diesel 16-valve catalyst |
| DW10 C RHE/ RHH / RHC (on HYbrid4) | RHE: 152 PS (112 kW; 150 hp), 165 PS (121 kW; 163 hp) | common rail Turbo-diesel 16-valve catalyst |
| DW10 CD AHZ | 130 PS (96 kW; 128 hp) | common rail Turbo-diesel 16-valve catalyst |
| 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) | common rail Turbo-diesel 16-valve catalyst SCR |
| DW10 FD / AH01 | 150 PS (110 kW; 148 hp) | common rail Turbo-diesel 16-valve catalyst SCR |
| DW10 FC / AH01, AH02 | 180 PS (132 kW; 178 hp) | common rail Turbo-diesel 16-valve catalyst SCR |

## 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, Peugeot 406, Peugeot 406 Coupe, and 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 added the engine as an option for the Peugeot 407 and the now facelifted 607, between the 2.0 DW10 and 2.7 DT17. Land Rover used this engine in the Freelander 2, Discovery Sport and Range Rover Evoque. 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 with a displacement of 2.2 L (2,198 cc) was used in the Citroën and Peugeot LCV range of vans.
In India
DW12 has been used by Tata Motors and Mahindra and Mahindra as their top of the line engines with independent consulting from AVL (engineering company) and has been used extensively by Tata Motors in their Safari (1st Gen), Aria, Hexa and Xenon and by Mahindra and Mahindra in their XUV500 and Scorpio models. The Tata Hexa and Tata Safari (2016+) have an output of 156 PS while the Mahindra XUV500 made 155PS. While Tata Motors discontinued the engine in its Passenger Vehicle Segment in 2020 with the onset of the Bharat Stage 6 emission standards, only using a commercial grade 98 PS tuned 2.2 L in the Tata Winger, Mahindra also discontinued the XUV500 which only leaves the Mahindra Scorpio using the engine, which is also at the end of its life cycle.
The DW12C is a Euro 5-compliant, high-output version.
| 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) | Common rail Turbo-diesel 16-valve |
| DW12 C | 204 PS (150 kW; 201 hp) | Common rail Turbo-diesel 16-valve |
| DW12 CTED4 | 180 CV | Common rail Turbo-diesel 16-valve for Peugeot Landtrek |
The DW12 RU is an updated version that meets Euro 6d emission standards, and is intended for light commercial vehicle applications where it replaces the DW10 FU. The Citroën Jumper and 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.

## EW7

The EW7 has a bore and a stroke 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 and Citroën Xsara Picasso, the Peugeot 406, and the Peugeot 407.
As of January 1, 2011 and the requirements of Euro 5 emission regulations, the EW7 (Euro 4 only) is no longer available in Europe. For most use, it was replaced by the 1.6 litre turbocharged version of the Prince engine.
| 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) | 16-valve catalyst |

## 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, C5, Citroën Xsara, Citroën Xsara Picasso and Peugeot 206, 307 and 407. A gasoline direct injection variant, called EW10 D and marketed as HPi, was briefly used in the Citroën C5 and 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 (VVT). Fuel consumption 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 emission regulations, the EW10 (Euro 4 only) 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.
| 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) | 16-valve catalyst |
| EW10 J4S | RFK | 177 PS (130 kW; 175 hp) | 16-valve VVT catalyst |
| EW10 A | RFJ | 143 PS (105 kW; 141 hp) | 16-valve VVT catalyst |

## 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 MPV, while Peugeot, which has more a sporty image, uses it in the 406 SRi and 406 Coupe, 407, the 607 executive model and 807 MPV.
As of January 1, 2011 and the requirements of Euro 5 emission regulations, the EW12 (Euro 4 only) is no longer available in Europe. It was replaced by the 1.6 litre turbocharged Prince engine.
| 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) | 16-valve catalyst |