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The PSA Group sells a variety of diesel automobile engines with the HDi (high-pressure direct injection) designation. Earlier versions were exclusive to Peugeot and Citroën. In 1998, PSA entered into a joint venture with the Ford Motor Company to produce a range of new diesel engines. The joint venture makes identical engines which are fitted to a variety of vehicles from a range of car manufacturers. The engines are assembled in production plants in the cities of Trémery and Douvrin for PSA in France, at the Ford Dagenham plant in England, and the Ford-owned Volvo Engine Plant in Skövde Sweden.
Half of the group's vehicles are fitted with an HDi diesel engine: in 2007 this amounted to approximately 1.8 million vehicles.
The 1.4 L (1,398 cc) Diesel is part of the DV/DLD family and is, depending application, called the DV4 (PSA), or DLD-414 (Ford).
The 1.6 L (1,560 cc) Diesel is part of the DV/DLD family and is, depending application, called the DV6 (PSA), W16 (MINI) or DLD-416 (Ford). 90 PS and 110 PS versions are available. Though both intercooled, the major difference being that the 90 PS has a conventional waste-gated Mitsubishi MHI TD025 turbo charger, whilst the 110 PS uses a Garret GT15V variable geometry (VNT) turbocharger. The 110 PS version of this engine can be ordered in an unprecedented variety of car models, representing either side of the motoring spectrum, ranging from the MINI Cooper D to the Volvo S80 1.6D DRIVe. From 2011 PSA start to develop (1,598 cc) diesel with BMW/Mini
The 8-valve, 2.0 L DW10, delivering 90 or 110 brake horsepower (67 or 82 kW), is part of the PSA EW/DW engine family. It is equipped with a fixed-geometry turbocharger. Initially available in the midsized models, such as the Citroën Xsara and Xantia and Peugeot 306 and 406, it was soon spread across the PSA range, such as the LCVs, while a 16-valve version, with 109 PS (80 kW), was used in the large MPVs built in association with Fiat. Suzuki was a customer of these powerplants, using them in the European Vitara and Grand Vitara. The PSA/Ford joint venture DW10B and DW10CZSD engine Diesel engine uses the same cylinder casing but has a 16-valve head. This engine is fitted to the Ford Focus, 2007 Ford Mondeo, Ford Galaxy, Ford C-Max, Ford S-Max, Volvo C30, Volvo S40, Volvo V50, Citroën C5, Citroën C6 and Peugeot 408.
The 2.7 L DOHC 24-valve biturbo V6 DT17 is also produced by the Ford/PSA joint venture, and is also solely built in Dagenham, England. A variant of this engine for the use in Land-Rover, the so-called 'LR-TDV6 Diesel engine' rd at their Dunton and Whitley research centres.