The Renault Diesel Engine S9U and S9W are 2.0 liter diesel engines that were produced from 1999 to 2013. They are inline, four-cylinder, turbocharged engines with common rail fuel injection. The S9U engine is found in the Renault Laguna, Megane, and Espace, while the S9W engine is found in the Renault Trafic and Master vans.

Both engines have a cast-iron block and aluminum cylinder head. The S9U engine has a compression ratio of 18:1, while the S9W engine has a compression ratio of 16:1. Both engines use a single overhead camshaft to operate two valves per cylinder. The S9U engine has a maximum power output of 115 kW (155 hp) at 4000 rpm and a maximum torque output of 360 Nm (266 lb-ft) at 2000 rpm. The S9W engine has a maximum power output of 110 kW (148 hp) at 3500 rpm and a maximum torque output of 320 Nm (236 lb-ft) at 1500 rpm.

Both engines are equipped with a variable geometry turbocharger and an intercooler. The S9U engine uses a Garrett GT1549S turbocharger, while the S9W engine uses a Garrett GT1749S turbocharger. The intercooler is mounted in the front of the engine and helps to reduce the temperature of the intake air, which improves power and efficiency.

The S9U and S9W engines are both reliable and fuel-efficient engines. They are well-suited for use in a variety of vehicles, including cars, vans, and light trucks.

Technical Specifications

Engine Type: Inline, four-cylinder, turbocharged diesel engine

Displacement: 2.0 liters

Compression Ratio: 18:1 (S9U), 16:1 (S9W)

Valvetrain: Single overhead camshaft, two valves per cylinder

Fuel Injection: Common rail

Turbocharger: Variable geometry turbocharger

Intercooler: Air-to-air intercooler

Maximum Power Output: 115 kW (155 hp) at 4000 rpm (S9U), 110 kW (148 hp) at 3500 rpm (S9W)

Maximum Torque Output: 360 Nm (266 lb-ft) at 2000 rpm (S9U), 320 Nm (236 lb-ft) at 1500 rpm (S9W)

DIESEL DIRECT INJECTION ENGINE
4 cylinder cast iron - S9U - S9W
Engines fitted on:
Rxx C

Rxx H
Rxx J
Rxx K
Rxx 5
Rxx 7
S9U 702

S9U 714 S9U 740 S9U 740 S9U 700 S9U 704
XD0 B XD0 C XD0 F

S9W 700 S9W 702 S9W 700

CONTENTS:
ENGINE AND PERIPHERALS
– Preface
10-1
– Engine identification
10-2
– Tightening torques
10-4
– Lubrication circuit diagram
10-7
– Specifications
10-9
– Standard exchange
10-28
– Essential special tooling
10-29
– Essential equipment
10-34
– Overhauling the engine
10-35