Computers and Control Systems: Locations
Engine Management System
3.0L TDI CATA Overviews
Note:
• Exhaust Gas Recirculation (EGR) Cooler Switch-Over Valve 2 -N381- not shown in the overview is located on the left
(driver side) at the rear of the cylinder head
1 E-Box
2 Mass Air Flow (MAF) Sensor -G70-
3 Camshaft Position (CMP) Sensor -G40-
4 Fuel Temperature Sensor -G81- => [ Fuel System Assembly Overview ] See Image Below.
5 Engine Coolant Temperature (ECT) Sensor -G62-
6 Harness Retainer on Bulkhead
7 Fuel Pressure Regulator Valve -N276- => [ Fuel System Assembly Overview ] See Image Below.
8 Exhaust Gas Temperature (EGT) Sensor 1 -G235-
9 Turbocharger (TC) 1 Control Module -J724-
• Integrated with Turbocharger (TC) 1 Servo-Motor -V280- and Charge Pressure Actuator Position Sensor -G581-
10 Intake Flap Motor -V157- => [ Intake Manifold Assembly Overview ] See Image Below.
• Integrated with Intake Manifold Runner Position Sensor -G336-
11 Electrical Connector for EGR Temperature Sensor -G98- => [ (Item 3) Electrical Connector for ]
12 Exhaust Gas Recirculation (EGR) Cooler Switch-Over Valve -N345- => [ (Item 14) ]
• Located on top of the engine to the left (driver side) of center
13 Exhaust Gas Recirculation (EGR) Motor -V338- => [ (Item 15) ]
3.0L TDI CATA Overviews continued
14 - EGR Temperature Sensor -G98- => [ (Item 2) ]
15 - High Pressure Fuel Pump
16 - Fuel Metering Valve -N290- => [ Fuel System Assembly Overview ] See Image Below.
17 - Oil Pressure Switch -F22- /Oil Pressure Switch -F1- => [ Upper Oil Pan Assembly Overview ] See Image Below.
18 - Exhaust Gas Recirculation (EGR) Cooler Pump -V400- => [ Exhaust Gas Recirculation Cooler Pump Assembly Overview ] See Image Below.
19 - Fuel Return Lines and Valve
20 - Fuel Injectors
21 - Engine Coolant Temperature (ECT) Sensor (on Radiator) -G83- => [ Cooling Fans and Pumps ] Locations
3.0L TDI CATA Overviews continued
1 Fuel Metering Valve -N290- => [ Fuel System Assembly Overview ] See Image Below.
2 EGR Temperature Sensor -G98- => [ Exhaust Gas Recirculation System Assembly Overview ] See Image Below.
3 Electrical Connector for EGR Temperature Sensor -G98-
4 Electrical Connector for Exhaust Gas Recirculation (EGR) Motor -V338-
5 Intake Flap Motor 2 -V275-
• Integrated with Intake Manifold Runner Position Sensor 2 -G512- => [ Intake Manifold Assembly Overview ] See Image Below.
6 Heated Oxygen Sensor (HO2S) -G39- with Oxygen Sensor (O2S) Heater -Z19- => [ Oxygen Sensors ] Locations
7 Auxiliary Fuel Pump -V393-
• Located left of plenum chamber bulk head => [ Auxiliary Fuel Pump Assembly Overview ] See Image Below.
8 Fuel Cooler
9 Fuel Filter
10 Charge Air Pressure Sensor -G31- with Intake Air Temperature (IAT) Sensor -G42- => [ Charge Air Cooler Hoses/Pipes Assembly Overview ] See Image Below.
11 Throttle Valve Control Module -J338- => [ Intake Manifold Assembly Overview ] See Image Below.
12 Fuel Injectors
13 Fuel Pressure Sensor -G247- => [ Fuel System Assembly Overview ] See Image Below.
14 Exhaust Gas Recirculation (EGR) Cooler Switch-Over Valve -N345-
15 Exhaust Gas Recirculation (EGR) Motor -V338- => [ Exhaust Gas Recirculation System Assembly Overview ] See Image Below.
16 High Pressure Fuel Pump
Exhaust Gas Pressure, Temperature, Catalyst and NOx Sensors
Assembly Overview
2 - Exhaust Gas Temperature (EGT) Sensor 4 -G648-
5 - Exhaust Gas Temperature (EGT) Sensor 3 -G495-
6 - Catalyst Temperature Sensor 1 -G20-
7 - Exhaust Gas Temperature (EGT) Sensor 2 -G448-
9 - Nitrogen Oxide (NOx) sensor -G295-
10 - Heated Oxygen Sensor (HO2S) -G39-
12 - Exhaust Gas Temperature (EGT) Sensor 1 -G235-
13 - Exhaust Pressure Sensor 1 -G450-
15 - Exhaust Pressure Sensor 1 -G450- , pressure line
16 - NOx Sensor 2 -G687- see image below
Exhaust Gas Recirculation System
Assembly Overview
10 - Exhaust Gas Recirculation (EGR) Motor -V338-
- With EGR Potentiometer -G212- and EGR Vacuum Regulator Solenoid Valve -N18-
15 - EGR Temperature Sensor -G98-
Intake Manifold Assembly Overview
2 - Throttle Valve Control Module -J338-
15 - Intake flap motor
• Cylinder bank 1 (right): Intake Flap Motor -V157- integrated with Intake Manifold Runner Position Sensor -G336-
• Cylinder bank 2 (left): Intake Flap Motor 2 -V275-
Fuel System Assembly Overview
4 - Fuel Temperature Sensor -G81-
7 - Fuel Pressure Regulator Valve -N276-
- Installed on cylinder bank 1
12 - High pressure fuel pump with Fuel Metering Valve -N290-
19 - Fuel Pressure Sensor -G247-
- Bolted in the rail element on cylinder bank 2
Charge Air Cooler Hoses/Pipes Assembly
Overview
26 - Charge Air Pressure Sensor -G31-
31 - Charge Air Cooler Bypass Control Unit -J865-
Exhaust Gas Recirculation Cooler
Pump Assembly Overview
1 - Coolant hose
- To coolant thermostat
2 - Exhaust Gas Recirculation (EGR) Cooler Pump -V400-
6 - Coolant hose
- To cooler for EGR
Engine Speed Sensor
Engine Speed (RPM) Sensor -G28- , near engine mount.
Auxiliary Fuel Pump Assembly Overview
Arrow - Auxiliary Fuel Pump -V393-
Oil Pump and Lower Oil Pan Assembly
Overview
20 - Oil Level Thermal Sensor -G266-
Upper Oil Pan Assembly Overview
7 - Oil Pressure Regulation Valve -N428-
17 - Oil Pressure Switch -F22-
Oil Cooler, Pressure Regulator Valve and Oil Filter
Housing Overview
4 - Reduced Oil Pressure Switch -F378-
AdBlue(R) Delivery Line Assembly
Overview
1 - NOx Sensor 2 -G687- with NOx Sensor 2 Control Module -J881-
AdBlue(R) Tank Assembly Overview
4 - AdBlue(R) Reservoir Processing Unit -G698-
9 - AdBlue(R) heater control module -J891-
AdBlue(R) Delivery Module Assembly Overview
4 - AdBlue(R) pump -V437-
• With the AdBlue(R) pump heater
• With the AdBlue(R) metering system pressure sensor
• With the AdBlue(R) reversing valve
Particulate Filter, Primary and Reduction Catalytic
Converters Overview
6 - AdBlue(R) injector -N474-