Removing And Installing The Exhaust Gas Recirculation System For Engines With Code Bmm - Skoda Octavia II 2004 Workshop Manual

Octavia II 2004 ➤ , Octavia II 2010 ➤
2.0/100; 103 kW TDI PD Engine - Edition 01.2018
2.7 Removing and installing the exhaust
gas recirculation system for engines
with code BMM
Note
The exhaust gas recirculation system is controlled by the die‐
♦
sel direct injection system control unit -J248- to the electrical
exhaust gas recirculation valve - N18- with potentiometer for
exhaust gas recirculation - G212- and actuator for exhaust gas
recirculation - V338- .
The mechanical exhaust gas recirculation valve with cone-
♦
shaped valve plunger makes it possible to achieve different
opening cross-sections at different opening strokes.
Replace self-locking nuts.
♦
1 - Gasket
❑ replace
2 - Intake manifold
3 - Sealing ring
❑ replace
4 - Supports
5 - Intake manifold flap motor -
V157-
❑ The intake manifold flap
is closed for about 3
seconds after switching
off the engine and then
opens again. This re‐
duces the switch-off im‐
pact.
6 - from charge-air cooler
7 - 10 Nm
8 - Electric exhaust gas recir‐
culation valve - N18- with EGR
potentiometer - G212- and
EGR control motor - V338-
❑ before installing, check
sealing surfaces at in‐
take manifold for dirt
and clean as required
❑ After replacing, adapt
new part as follows:
– Switch ignition on and
off; then wait 1 minute
for the afterrun of the
control units.
– Start engine and run in
idle for at least 1 minute.
– Interrogate the fault memory ⇒ Vehicle diagnostic tester.
• There must be no faults stored in the fault memory.
– If a fault is stored, clear fault memory and repeat the entire procedure.
246
Rep. gr.26 - Exhaust system
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