Volkswagen Fox (2004 year). Manual - part 30

.

– Select 

engine control

.

– Select 

functions

.

– Select 

function or component

.

Fox 2004 ➤

2. Engine command unit    

117

 

Exhaust system components - re‐

move and install

Note

♦

Removing and installing exhaust manifold 

⇒ page 101

♦

After repairing the exhaust system, check that there is no volt‐

age and the clearance with the body is sufficient. When re‐

quired, loosen double clamp (or clamps) and align silencer and

exhaust tube so that sufficient body clearance is maintained,

and the weight is evenly distributed on the supports.

♦

Always replace self-locking nuts.

WARNING

Always replace self-locking nuts and screws subject to angular

torque

Fox 2004 ➤

118

 

2 - Self-locking nut

❑ 25 Nm
❑ Replace after each re‐

moval.

3 - Support strap

❑ Replace if damaged.

4 - Front exhaust pipe with cat‐

alytic converter
5 - Marking
6 - Dimension -a- = 5 mm
7 - Double clamp
8 - Self-locking nut

❑ 40 Nm
❑ Replace after each re‐

moval

9 - Support

❑ With support strap.
❑ Replace if damaged.

10 - 25 Nm
11 - Rear silencer

Fox 2004 ➤

1. Exhaust system components - remove and install    

119

 

Note

♦

The control of the exhaust gas recirculation system is carried

out by the Direct injection diesel system control unit -J248- via

the Exhaust gas recirculation (EGR) valve -N18- .

♦

The tapered plunger of the Exhaust gas recirculation valve -

N18- enables the cross-section variation in function of the

different plunger positions.

♦

The control by pulses makes feasible all the valve opening

positions.

♦

Always replace self-locking nuts.

2.1

Exhaust gas recirculation system components - remove and install

1 - Intake manifold
2 - Sealing ring

❑ Replace.

3 - Intake connection flange
4 - Exhaust gas recirculation

valve -N18-

❑ Integral part of intake

flange

❑ Can only be replaced to‐

gether with the intake

flange.

5 - Intake manifold valve motor

-V157-
6 - 10 Nm
7 - From the intercooler
8 - Exhaust manifold
9 - Gasket

❑ Replace.

10 - Radiator

❑ For exhaust gas recircu‐

lation.

11 - 25 Nm
12 - For heat exchanger
13 - 25 Nm
14 - 25 Nm
15 - From engine head

Fox 2004 ➤

120