Land Rover Discovery Owners & Service Manuals

Land Rover Discovery: Engine - Ingenium i4 2.0l Diesel / Description and Operation

Land Rover Discovery (2009–2016) Service Manual / Powertrain / Engine / Engine - Ingenium i4 2.0l Diesel / Description and Operation


Engine - Ingenium i4 2.0l Diesel Description and Operation



  1. Variable Geometry Turbocharger (VGT)
  2. Engine vent module and positive crankcase ventilation
  3. Engine vent module breather pipe
  4. Fuel return from fuel rail to fuel cooler
  5. Fuel cooler
  6. High Pressure (HP) Exhaust Gas Recirculation (EGR) valve (All models)
  7. Fuel return to fuel tank
  8. Intake manifold
  9. Electric throttle
  10. Oil level gauge
  11. High Pressure (HP) fuel pump
  12. Electric thermostat
  13. Tandem Solenoid Starter (TSS) motor
  14. Generator
  15. Air conditioning (A/C) compressor
  16. Engine front cover
  17. Crankshaft pulley/mass damper
  18. Variable coolant pump
  19. Oil filter and housing assembly
  20. Oil filter and housing assembly
  21. Fuel filter
  22. Turbocharger outlet



  1. Electric throttle
  2. Fuel rail
  3. Fuel rail pressure sensor
  4. Fuel cooler
  5. High Pressure (HP) fuel pump fuel inlet from fuel filter
  6. Oil level gauge
  7. Fuel rail
  8. Oil filler cap
  9. Fuel return to fuel tank
  10. Fuel filter
  11. Fuel injector (4 off)
  12. Oil filter and housing assembly
  13. Engine coolant inlet
  14. Variable Geometry Turbocharger (VGT)
  15. Oil Cooler
  16. EGR cooler with differential pressure sensor
  17. Low Pressure (LP) Exhasut Gas Recirculation (EGR) valve
  18. Clutch and flywheel assembly (manual transmission) / Driveplate (Automatic Transmission)
  19. High Pressure (HP) Exhaust Gas Recirculation (EGR) valve (all models)
  20. Exhaust Gas Recirculation (EGR) inlet pipe


The Ingenium I4 2.0L Diesel is an in-line four cylinder, turbocharged engine which employs advanced modular design principles. Two variants of the Ingenium I4 2.0L Diesel four-cylinder engine have the following power and torque output: 180PS/430Nm. The engine meets the EU5/EU6 emission regulations.

The engine features a split-cooling system; an Engine Control Module (ECM) controlled electric thermostat and a fully variable coolant pump. The variable coolant pump enables engine coolant to remain static in the engine to maximise heat transfer during warm up. When engine coolant flow is required for engine cooling, the minimum flow is provided by the variable coolant pump with the split cooling thermostat housing maintaining static coolant in the cylinder block while allowing engine coolant to circulate through cross-flow channels in the cylinder head. Parasitic losses are also optimized when the variable coolant pump is delivering reduced flow.

An electronically controlled variable flow oil pump with integral vacuum pump matches its flow rate according to engine speed, load and temperature. Oil flow to the piston cooling oil jets is solenoid controlled and operates only when needed.

Variable Camshaft Timing (VCT) on the exhaust camshaft enables faster catalytic converter heating, minimizing harmful emissions during the critical warm-up phase. The VCT system is controlled by the Engine Control Module (ECM) using information from Camshaft Position (CMP) sensor.

The engine uses a Bosch high pressure direct injection, common rail fuel system with fuel pressure provided by a high pressure fuel pump which is chain driven from the crankshaft. The High Pressure (HP) fuel pump supplies the fuel rail at a pressure of 1800 bar (26106 lbf/in²), the fuel rail then supplies the four fuel injectors with fuel at a controlled pressure. The high pressure fuel system provides low noise, high efficiency and excellent fuel mixture formation within the combustion chambers.

The engine incorporates a sophisticated Exhaust Gas Recirculation (EGR) system which further assists to ensure emissions are below the limits set by EU5/EU6 regulations. The engine meets EU6 emission regulations in Europe and Rest of World (ROW). EU5/EU6 compliance is achieved using Selective Catalyst Reduction (SCR).

For additional information, refer to: Selective Catalyst Reduction (309-00C Exhaust System - INGENIUM I4 2.0L Diesel, Description and Operation).

The turbocharger design utilizes a high temperature cast iron exhaust manifold with a Mitsubishi Variable Geometry Turbocharger (VGT).

Ingenium I4 2.0L Diesel engines are characterized by the rapid build-up of torque from very low engine speeds, enabled by highly efficient Variable Geometry Turbocharger (VGT). Maximum torque is maintained over a wide engine speed range, ensuring instantaneous response and strong acceleration whenever the driver demands it.

Engine - Ingenium i4 2.0l Diesel Description and Operation

Engine - Ingenium i4 2.0l Diesel Description and Operation



 Cylinder Block Components

M6 bolt (13 off), M10 bolt (1 off) Engine front cover Cylinder block Lower timing chain cover M8 screw (16 off) M10 bolt (8 off) Dual mass flywheel (manual transmission) or drive plate (Auto


Thrust washers (2 off) Timing chain drive sprocket Pin - dual mass flywheel (manual transmission) or drive plate (automatic transmission) location Dynamic balancer drive gear Lower main beari

 Pistons and Connecting Rods

Oil control ring Upper piston ring Lower compression piston ring Circlip Piston Connecting rod Connecting rod bearing cap Bolt (2 off) Lower large end bearing Upper large end bearing Sma


 Supplemental Restraint System Occupant Detection Sensor (G1791884) / Removal and Installation

REMOVAL WARNINGS: To avoid accidental deployment and possible personal injury, the backup power supply must be depleted before repairing or replacing any air bag supplemental restraint system (SRS) components. To deplete the backup power supply energy, disconnect the battery ground cable and

 Automatic Transmission  Transaxle / Routines

NOTE: Before performing any of the following routines, ensure that the Jaguar Land Rover approved diagnostic equipment has been updated with the latest level software. The following routines are available: CONFIGURE NEW MODULE - TRANSMISSION CONTROL MODULE - INCLUDING TRANSMISSION REPLACEMENT NOTE:

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