SEAT Workshop Service and Repair Manuals

Fitting locations overview Components A to H are not shown on the exploded view.

1 -	Exhaust gas pressure sensor 1 -G450-

q	Fitting location → Fig.

q	Adaption must be performed after renewing this component

q	Removing and installing → Chapter.

2 -	Hall sender -G40- (camshaft position sensor)

q	Fitting location → Fig.

3 -	Lambda probe -G39- withheater for the lambda probe -Z19-

q	Fitting location → Chapter

q	Removing and installing → Chapter.

q

50 Nm

4 -	Engine control unit -J623-

q	Fitting location → Fig.

q	Removing and installing → Chapter.

5 -	Injectors (piezo injectors)

q	Fitting location → Fig.

q	Removing and installing → Chapter.

6 -	Charge pressure actuator position sender -G581-

q	Fitting location → Fig.

7 -	Pressure retention valve

q	The pressure retention valve has to maintain a residual pressure (controlled quantity) of approx. 10 bar in the fuel return lines.

q	This residual pressure is required for the control function of the piezo injectors.

q	The pressure retention valve may only be renewed together with the fuel return lines.

q	After replacement, engine must be run at idling speed for approx. 2 minutes to bleed fuel system

q	Checking pressure retention valve → Chapter

8 -	Fuel pressure regulating valve -N276-

q	Fitting location → Fig.

q	Checking → Chapter

q	Removing and installing → Chapter.

9 -	Charge pressure control solenoid valve -N75-

q	Fitting location → Fig.

q	Electrical connector for exhaust gas temperature sender 3 -G495-

10 -

Connector

q	For exhaust gas temperature sender 4 -G648-

q	For exhaust gas temperature sender 1 -G235-

q	for lambda probe -G39-

q	Fitting location → Fig.

11 -	Air mass meter -G70-

q	Removing and installing → Chapter.

12 -	Coolant temperature sender -G62-

q	Fitting location → Fig.

q	Removing and installing → Chapter.

13 -	Engine speed sender -G28-

q	Fitting location → Fig.

q

4.5 Nm

14 -	Variable intake manifold motor -V183-

q	With variable intake manifold position sender -G513-

q	Fitting location → Fig.

15 -	Exhaust gas recirculation cooler changeover valve -N345-

q	Fitting location → Fig.

16 -	Pump for exhaust gas recirculation cooler -V400-

q	Fitting location → Fig.

17 -	Intake manifold flap motor -V157-

q	With throttle valve potentiometer -G69-

q	Fitting location → Fig.

q	Intake manifold: Components overview → Chapter

q	Removing and installing → Chapter.

18 -	Charge air pressure sender -G31-

q	Combined with intake air temperature sender -G42-

q	Fitting location → Fig.

q	Removing and installing → Chapter.

19 -	Glow plugs

q	Glow plug 1 -Q10-

q	Glow plug 2 -Q11-

q	Glow plug 3 -Q12-

q	Glow plug 4 -Q13-

q	Removing and installing → Chapter.

20 -	Fuel temperature sender -G81- in fuel supply line

q	Fitting location → Fig.

21 -	Exhaust gas recirculation valve -N18- and exhaust gas recirculation potentiometer -G212-

q	Fitting location → Fig.

22 -	Connection for the fuel return line to the fuel filter

23 -	Connection for the fuel supply line (high pressure line) to the Common Rail (high-pressure reservoir)

24 -	High-pressure fuel pump with fuel metering valve -N290-

q	Do not open fuel metering valve -N290-

q	After renewing, first fuel filling „MUST“ be performed (it is important not to allow pump to run while it is still empty) → Chapter

q	Removing and installing → Chapter.

25 -	Fuel pressure sender -G247-

q	Fitting location → Fig.

q	Removing and installing → Chapter.

q

70 Nm

26 -	Radiator outlet coolant temperature sender -G83-

q	Fitting location → Fig.

q	Removing and installing → Chapter.

27 -	Supplementary fuel pump -V393-

28 -	Fuel filter

q	Fuel filter: Components overview → Chapter

q	Renew fuel filter → Booklet101.

A -	Low heat output relay -J359- and high heat output relay -J360-

q	Fitting location → Current flow diagrams, Electrical fault finding and Fitting locations

B -	Brake light switch -F- and brake pedal switch -F47-

q	Fitting location → Fig.

q	In footwell on brake pedal

C -	Clutch position sender -G476-

q	Fitting location → Fig.

q	Only on vehicles with manual gearboxes

D -	Accelerator position sender -G79- and accelerator position sender 2 -G185-

q	Fitting location → Fig.

q	Removing and installing → Chapter.

E -	Exhaust gas temperature sender 3 -G495-

q	Lambda probes and exhaust temperature sender: Components overview → Chapter

q	Removing and installing → Chapter.

F -	Exhaust gas temperature sender 1 -G235-

q	Fitting location → Fig.

q	Removing and installing → Chapter.

G -	Exhaust gas temperature sender 4 -G648-

q	Fitting location → Fig.

q	Lambda probes and exhaust temperature sender: Components overview → Chapter

q	Removing and installing → Chapter.

H -	Particulate filter

q	Fitted on vehicle underbody

q	Combined as one component with main catalytic converter

q	Adaption must be performed after renewing this component

q	Removing and installing → Chapter.

Adaption must be performed after renewing exhaust gas pressure sensor 1 -G450- and/or particulate filter. (The procedure is described under Guided Functions.) Select the correct vehicle in Guided Fault Finding. –  Press „GoTo“ button. –  Press „Function/component selection“. –  Select „Drive train“. –  „01 - Self-diagnosis compatible systems“ –  „01 - Engine electronics J623“ –  Select „01 - Functions of engine electronics“ –  „01 - Adapt particulate filter learned values“

Fitting location of engine control unit -J623- Removing and installing → Chapter.

Accelerator position sender -G79- and accelerator position sender 2 -G185- Removing and installing → Chapter.   Note The accelerator position sender -G79- and accelerator position sender 2- -G185- are integrated in the accelerator pedal module and cannot be renewed individually.

Brake light switch -F- and brake pedal switch -F47--1- Integrated functions: clutch pedal switch for engine start -F194- and clutch pedal switch -F36- (manual gearbox only)

Clutch position sender -G476-

Fuel pump control unit -J538- 1 -  Connector for fuel pump control unit -J538- 2 -  Fuel pump control unit -J538- 3 -  Fuel system pressurisation pump -G6-

Fitting location 1 -  Fuel pressure sender -G247- 2 -  Fuel pressure regulating valve -N276- 3 -  Variable intake manifold motor -V183- with variable intake manifold position sender -G513- 4 -  Exhaust gas recirculation cooler changeover valve -N345- 5 -  Intake manifold flap motor -V157- with throttle valve potentiometer -G69- 6 -  Exhaust gas recirculation valve -N18- and exhaust gas recirculation potentiometer -G212- 7 -  Fuel temperature sensor -G81- 8 -  Fuel metering valve -N290-

Pump for exhaust gas recirculation cooler -V400--arrow-

Hall sender -G40-

Exhaust gas pressure sensor 1 -G450-

Radiator outlet coolant temperature sender -G83-

Engine speed sender -G28--arrow-

Components at front of engine 1 -  Electrical connector for Hall sender -G40- 2 -  Exhaust gas recirculation cooler changeover valve -N345- 3 -  Variable intake manifold motor -V183- with variable intake manifold position sender -G513-

Components at front of engine 1 -  Fuel metering valve -N290- 2 -  Fuel temperature sensor -G81- 3 -  Exhaust gas recirculation valve -N18- and exhaust gas recirculation potentiometer -G212- 4 -  Intake manifold flap motor -V157- with throttle valve potentiometer -G69- 5 -  Charge air pressure sender -G31- with intake air temperature sender -G42-

Components on engine 1 -  Exhaust gas pressure sensor 1 -G450- 2 -  Charge pressure actuator position sender -G581- 3 -  Fuel pressure sender -G247- 4 -  Injectors (N30 to N32)

Injectors: 1 -  Injector cylinder 1 -N30- 2 -  Injector cylinder 2 -N31- 3 -  Injector cylinder 3 -N32- 4 -  Injector cylinder 4 -N33- 5 -  Fuel pressure regulating valve -N276-

Fitting locations and connectors 1 -  Electrical connector for charge pressure control solenoid valve -N75- 2 -  Electrical connector for exhaust gas temperature sender 4 -G648- 3 -  Electrical connector for exhaust gas temperature sender 1 -G235- 4 -  Electrical connector for Lambda probe -G39- 5 -  Electrical connector for exhaust gas temperature sender 3 -G495-

Coolant temperature sender -G62--2-

Components at rear of engine 1 -  Exhaust gas temperature sender 1 -G235- 2 -  Exhaust gas temperature sender 4 -G648- 3 -  Vacuum unit for exhaust gas recirculation cooling