PSA
DW-Motor
Manufacturer:	PSA
How it works:	diesel
Style:	Line four-cylinder
displacement:	DW8: 1.9 liters (1868 cc) DW10: 2.0 liters (1997 cc)  DW12: 2.2 liters (2179 cc)
Previous model:	XUD7  XUD9  XUD11
Successor:	DV (for DW8)

The PSA DW (Diesel) is a series of internal combustion engines that are mainly used in Peugeot and Citroën automobiles.

DW8 

The DW8 is a swirl chamber diesel engine with a displacement of 1.9 l (1868 cc) with a bore of 82.2 mm and a stroke of 88 mm. This replaced the uncharged versions of XUD7 and XUD9 .

Production of the DW8 was discontinued in 2007 due to a lack of Euro 4 suitability. The DW8 was replaced by the 1.4-liter HDi DV engine with 50 kW (68 hp).

DW10

The DW10 was the first diesel engine of direct injection PSA . It has a displacement of 2.0 l (1997 cm³) with a bore of 85 mm and a stroke of 88 mm, replacing the charged versions of the XUD7 and the XUD9 .

DW12 

The DW12 has a displacement of 2.2 l (2179 cm³) with a bore of 85 mm and a stroke of 96 mm. It was introduced in 2000 and replaced the XUD11 .

The engine badge contains the following information:

• The fuel used, which is indicated by the first two or three letters: TU (petrol) or TUD (diesel).
• The first number indicates the hundredth position of the cubic capacity : TUD3 thus stands for diesel engine 1 3 60 cc.

The remaining letters or numbers in the sequence give additional hints:

• M indicates that the fuel of an electronic Monopoint - intake manifold with (single injector) is injected.
• C shows an electronic ignition without distributor . ("Dormant" ignition system)
• F indicates that the engine block is made of cast iron.
• A is a change (A for "improved") of an earlier version.
• S is a sporty variant with a higher performance than the base engine.
• J indicates that the fuel is supplied via a multi-port electronic fuel injection system with four injectors (one per cylinder). J immediately followed by a 2 ("J2") shows two valves per cylinder (eight in total), followed by a 4 ( "D4" or "JP4" ), this indicates the presence of 16 valves (four per cylinder).
• P stands for a controlled carburetor .
• 2 or 0.2 shows a carburetor with two throttle valves .
• 4 or 0.4 shows a double carburetor .
• TR shows a version with a reduced compression ratio .
• K means "without catalyst ".
• Z means "with catalyst".

The TUD engine was only used in the following eleven models below, seven of which were not from the PSA Group:

• Peugeot : 106 .
• Citroën : AX and Saxo .
• Nissan : Micra .
• Maruti Suzuki : Zen D and Esteem D.
• IKCO : Samand .
• Proton : Tiara .
• Rover : 114D and Mini Metro 100.
• Lada : Samara .

The XUD engines were introduced in 1982 with the Peugeot 305 . This was a SOHC - or DOHC - line engine with two or four valves per cylinder , with gasoline as fuel . It was tilted transversely by 30 ° only in vehicles with front wheel drive installed.Displacement ranges between 1,769 and 2,138 cc, and all XU diesel engines with a stroke of from 88 mm to 92 mm . The XU series was replaced by more modern EW / DW series motors .

XUD7 

The XUD7 is a diesel engine with 1769 cm ³ capacity with a bore of 80 mm and a stroke of 88 mm. The power ranged from 60 to 90 hp (44-66 kW).

Cylinder block diameter: 1.7 (1.8)

80000 to 80.018 mm (3.1496 to 3.1503 in) or
80 030 to 80.048 mm (3.1508 to 3.1515 in)

XUD9 

The XUD9 has a displacement of 1905 cm ³ with a bore of 83 mm and a stroke of 88 mm.

Cylinder block diameter: 1.9
83000 to 83.018 mm (3.2677 to 3.2684 in) or
83030 to 83.048 mm (3.2689 to 3.2696 in)

XUD11

The XUD11 is available either with a displacement of 2068 cm ³ with a bore of 85 mm or with 2138 cm ³ with a bore of 86 mm. The stroke is 92 mm for both versions.

The XU engines were introduced in 1981 with the Peugeot 305 . This was a SOHC - or DOHC - line engine with two or four valves per cylinder , with gasoline as fuel . It was tilted transversely by 30 ° only in vehicles with front wheel driveinstalled. The displacement was between 1580 and 1998 cc (gasoline), and all XU gasoline engines had holes of 83 mm or 86 mm. The diesel versions are called XUD and range from 1769 to 2138 cm³ for holes of 80, 83, 85 or 86 mm.The XU series has been replaced by more modern EW / DW series motors .

XU5 

The XU5 has a displacement of 1.6 l (1580 cm ³ ) with a bore of 83 mm and a stroke of 73 mm. All XU5 had one overhead camshaft and two valves per cylinder. Depending on the model, either a single or double carburetor or port injection was used. The power ranged from 80 to 115 hp (59-85 kW).

XU7 

The XU7 has a displacement of 1.8 l (1761 cm ³ ) with a bore of 83 mm and a stroke of 81.4 mm. The XU7 engines were only available with injection system and catalytic converter, the XU7 JP4 with 16-valve injection. The power ranged from 90 to 110 hp (66 to 81 kW).

XU8

The XU8 has a displacement of 1.8 l (1775 cm ³ ) with a bore of 83 mm and a stroke of 82 mm. With him the 205 Turbo16 was equipped. The power ranged from 200 hp (147 kW) to 480 hp (353 kW). The XU8T is based on the modified cast iron engine block of the diesel variant, because only so could the necessary stability for the high load caused by the charge could be ensured. Also, the cylinder head of this engine has been redesigned. For the Peugeot 405 Turbo 16 there was based on the XU8 T Evo 2 the XU9 T Evo 4. This reached with a Garrett turbocharger in the Pikes Peak version of an output of 600 hp (448 kW).

XU9 

The XU9 has a displacement of 1.9 l (1905 cm ³ ) with a bore of 83 mm and a stroke of 88 mm. There were versions with carburettor and eight valves and those with two overhead camshafts, 16 valves and intake manifold injection . The power ranged from 102 to 160 hp (76-118 kW).

XU10 

The XU10 has a displacement of 2.0 l (1998 cm ³ ) with a bore and a stroke of 86 mm. There were versions with a carburetor and eight valves as well as a 16-valve DOHC injection turbo version. The power ranged from 109 to 200 hp (80-147 kW).