Exhaust Gas Recirculation System; Exhaust Gas Recirculation System Components - Remove And Install - Volkswagen Fox 2004 Workshop Manual

Fox 2004 ➤
3 - Cyl. diesel engine - Edition 02.2009
2

Exhaust gas recirculation system

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
120
Rep. Gr.26 - Exhaust system