SEAT Workshop Service and Repair Manuals

Overview of fitting locations Components A to J are not shown in the illustration.

1 -	Air mass meter -G70-

q	removing and fitting → Chapter

2 -	Lambda probe -G39- with heater for lambda probe -Z19-, 50 Nm

q	Fitting location → Chapter

q	removing and fitting → Chapter

3 -	Exhaust gas temperature sender 3 -G495-, 45 Nm

q	Fitting location → Fig.

q	Removing and installing → Chapter

4 -	Fuel filter:

q	Removing and installing → Chapter

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

q	Fitting location → Fig.

6 -	Connector for Lambda probe -G39-

q	Fitting location → Fig.

7 -	Pressure differential sender -G505-, 45 Nm

q	Fitting location → Fig.

q	removing and fitting → Chapter

q	Adaption must be performed after renewing this component

8 -	Radiator outlet coolant temperature sender -G83-

q	Fitting location → Fig.

q	Removing and installing → Chapter

9 -	Fuel temperature sensor -G81-

q	Fitting location → Fig.

10 -	Pressure retention valve

q	Fitting location → Fig.

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 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	Check pressure retention valve → Chapter.

11 -	Coolant temperature sender -G62-

q	Fitting location → Fig.

q	Removing and installing → Chapter

12 -	Fuel pressure regulating valve -N276-

q	Fitting location → Fig.

q	removing and fitting → Chapter

13 -	Variable intake manifold motor -V183-

q	With variable intake manifold position sender -G513-

q	Fitting location → Fig.

14 -	Engine speed sender -G28-, 4.5 Nm

q	Fitting location → Fig.

15 -	Intake manifold flap motor -V157-

q	With throttle valve potentiometer -G69-

q	Fitting location → Fig.

q	Intake manifold: Assembly overview → Chapter

16 -	Pump for exhaust gas recirculation cooler -V400-

q	Fitting location → Fig.

q	Removing and installing → Chapter

17 -	Engine control unit -J623-

q	Fitting location → Fig.

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

q	Fitting location → Fig.

q	Removing and installing → Chapter

20 -	Fuel return line connection

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

q	Do not open fuel metering valve -N290-

q	removing and fitting → Chapter

22 -	Fuel supply pipe connection

23 -	Glow plugs

q	Glow plug 1 -Q10-

q	Glow plug 2 -Q11-

q	Glow plug 3 -Q12-

q	Glow plug 4 -Q13-

q	Fitting location → Fig.

q	Removing and installing → Chapter

24 -	Fuel pressure sender -G247-, 70 Nm

q	Fitting location → Fig.

q	removing and fitting → Chapter

25 -

Injectors

q	Fitting location → Fig.

q	removing and fitting → Chapter

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

q	Fitting location → Fig.

q	Removing and installing → Chapter

27 -	Fuel return lines

q	The fuel return lines must not be dismantled; if necessary they must be renewed complete with pressure retention valve.

q	After replacement, the engine must be run at idling speed for approx. 2 minutes to bleed the fuel system. Then check the fuel return lines for leaks.

28 -	Charge pressure control solenoid valve -N75-

q	Fitting location → Fig.

29 -	Exhaust gas recirculation cooler changeover valve -N345-

q	Fitting location → Fig.

30 -	Electrical connector for exhaust gas temperature sender 1 -G235-

q	Fitting location → Fig.

31 -	Charge pressure actuator position sender -G581-

q	Fitting location → Fig.

32 -	Air filter bypass flap valve -N275-

q	These components (bypass flap with air filter bypass flap valve -N275-) are not installed on certain equipment versions or on vehicles for certain export markets

q	Air filter: Assembly overview → Chapter

A -	Relay and fuse holder in electronics box in plenum chamber (left-side)

q	Locations → Fig.

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

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

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

q	Fitting location → Fig.

q	In footwell on brake pedal

D -	Clutch position sender -G476-

q	Fitting location → Fig.

q	Only fitted on vehicles with manual gearbox

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

q	Fitting location → Fig.

F -	Exhaust gas temperature sender 1 -G235-, 45 Nm

q	Fitting location on turbocharger → Fig.

q	Removing and installing → Chapter

G -	Exhaust gas temperature sender 4 -G648-, 45 Nm

q	Installation location with manual gearboxes → Fig.

q	Installation location with automatic gearboxes → Fig.

q	removing and fitting → Chapter

H -	Electrical connector for exhaust gas temperature sender 4 -G648-

q	Fitting location → Fig.

I -	Particle filter

q	Fitted on vehicle underbody

q	Combined as one component with upstream main catalytic converter

q	Adaption must be performed after renewing this component

q	Removing and installing → Chapter

J -	Relay carrier in switch panel on driver side below steering wheel

q	Fitting locations

After replacing the pressure differential sender -G505- and / or the particle filter, a readopting must be carried out again. The adaption is described in the Guided Fault Finding or in the Guided Functions. Use a vehicle diagnostic tester for this procedure. Select the correct vehicle in Guided Fault Finding. –  Press „go to“ key. –  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- t  In left-side electronics box in engine compartment. Removing and installing → Chapter

Relay and fuse holder in electronics box in plenum chamber (left-side) 1.1 -  Fuel pump relay -J17- (404) 1.2 -  Fuel pump relay -J832- (404) 2 -  Relay for voltage supply, c. 30 -J317- (643) 3 -  Control unit for automatic preheating time -J179- (457) 4 -  not used Refer to Relay and fuse holder in electronics box in plenum chamber (left-side) → Current flow diagrams, Electrical fault finding and Fitting locations

Relay carrier in switch panel on driver side below steering wheel 1 -  not used 2 -  Relay for low heating capacity -J359- (373) 3 -  Relay for high heating capacity -J360- (370)

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- 2 -  Clutch position sender -G476- Integrated functions: clutch pedal switch for engine start -F194- and clutch pedal switch -F36- (manual gearbox only)

Fitting locations 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 -  Intake manifold flap motor -V157- with throttle valve potentiometer -G69- 5 -  Exhaust gas recirculation valve -N18- and exhaust gas recirculation potentiometer -G212- 6 -  Fuel metering valve -N290-

Pump for exhaust gas recirculation cooler -V400-

Hall sender -G40-

Components in the rear part of the engine 1 -  Differential pressure sender -G505- 2 -  Radiator outlet coolant temperature sender -G83-

Engine speed sender -G28--arrow-

Supplementary fuel pump -V393- On underbody 1 -  Fuel supply hose 2 -  Supplementary fuel pump -V393- 3 -  Fuel supply hose 4 -  Long line connection on fuel auxiliary pump -V393- through right wheelhouse and via connector on right shock absorber dome. 5 -  Stops

Components: 1 -  Fuel pressure regulating valve -N276- 2 -  Variable intake manifold motor -V183-

Charge air pressure sender -G31- with intake air temperature sender -G42--1- Common component

Charge pressure actuator position sender -G581--1-

Injectors and glow plugs 1 -  Cylinder 1 injector -N30- 2 -  Cylinder 2 injector -N31- 3 -  Cylinder 3 injector -N32- 4 -  Cylinder 4 injector -N33- 5 -  Glow plug 1 -Q10- 6 -  Glow plug 2 -Q11- 7 -  Glow plug 3 -Q12- 8 -  Glow plug 4 -Q13- 9 -  Connections for the fuel return lines

Charge pressure control solenoid valve -N75--arrow-

Coolant temperature sender -G62--arrow-

Components: 1 -  Electrical connector for exhaust temperature sender 1 -G235- 2 -  Exhaust gas recirculation cooler changeover valve -N345-

Exhaust temperature sender 1 -G235--1-

Components: 1 -  Electrical connector for Lambda probe -G39- with Lambda probe heater -Z19- 2 -  Fuel temperature sensor -G81- 3 -  Electrical connector of the exhaust gas temperature sender 3 -G495- 4 -  Air mass meter -G70- 5 -  Lambda probe -G39- withheater for the lambda probe -Z19- 6 -  Exhaust gas temperature sender 3 -G495-

Exhaust gas temperature sender 4 -G648- in vehicles with manual gearbox

Exhaust gas temperature sender 4 -G648- in vehicles with automatic gearbox