Volkswagen Golf / Golf Plus. Manual - part 339

 

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Volkswagen Golf / Golf Plus. Manual - part 339

 

 

culation valve and in‐

take manifold flap motor

-V157- .

❑ Tighten securing bolts

to 22 Nm.

3 - Gasket

❑ Renew

4 - Connecting pipe
5 - Cooler

❑ For exhaust gas recircu‐

lation.

6 - 10 Nm
7 - Exhaust manifold
8 - Connecting pipe
Tightening sequence:

❑ 1. Attach to bypass flap
❑ 2. Attach to manifold
❑ 3. Tighten to bypass flap
❑ 4. Tighten to manifold

9 - Bypass flap

❑ When activated, directs

exhaust gas to exhaust

gas recirculation cooler

via the electro-pneu‐

matic exhaust gas recir‐

culation valve -N18- .

10 - Bracket

❑ For bypass flap

11 - 5 Nm

Connector assignment on solenoid valve block, engine codes

BKC, BRU, BXE and BXF
1 - Vacuum connection (on non-return valve for brake servo)
2 - Exhaust gas recirculation valve
3 - Bypass flap
4 - Air filter
5 - Vacuum reservoir
6 - Vacuum unit on turbocharger

4-cylinder diesel engine (1.9 l engine) - Edition 01.2009

194

     Rep. Gr.26 - Exhaust system

 

Note

The exhaust gas recirculation system is activated by the diesel

direct injection system control unit -J248- via exhaust gas re‐

circulation valve -N18- (electric-pneumatic) to the exhaust gas

recirculation valve (mechanical).

The electro-pneumatic exhaust gas recirculation valve -N18-

is located in the solenoid valve block.

The cone-shaped plunger in the mechanical exhaust gas re‐

circulation valve ensures that various cross sectional openings

are possible at different plunger lifts.

Pulsed control enables every conceivable valve position.

Renew self-locking nuts.

1 - Intake manifold

❑ With exhaust gas recir‐

culation valve and in‐

take manifold flap

❑ Tighten securing bolts

to 22 Nm.

2 - From charge air cooler
3 - Gasket

❑ Renew

4 - 22 Nm
5 - Exhaust manifold
6 - Connecting pipe

4-cylinder diesel engine (1.9 l engine) - Edition 01.2009

2. Exhaust gas recirculation system    

195

 

Engine codes BLS and BXJ

Note

The exhaust gas recirculation system is activated by the diesel

direct injection system control unit -J248- via the exhaust gas

recirculation potentiometer -G212- .

Renew self-locking nuts.

1 - Coolant hose

❑ To connection

2 - Gasket

❑ Renew

3 - 22 Nm
4 - Connecting pipe
5 - From exhaust manifold
6 - 25 Nm

❑ Renew

7 - To connection for exhaust

gas recirculation valve -N18-

with exhaust gas recirculation

potentiometer -G212-

❑ Assembly overview - in‐

take manifold

⇒ page 176

8 - Exhaust gas recirculation

cooler
9 - 10 Nm
10 - Coolant hose

❑ From rear coolant pipe

11 - Connecting hose
12 - Exhaust gas recirculation

cooler change-over valve -

N345-
13 - Connecting pipe
14 - Vacuum unit

❑ For bypass flap

4-cylinder diesel engine (1.9 l engine) - Edition 01.2009

196

     Rep. Gr.26 - Exhaust system

 

4-cylinder diesel engine (1.9 l engine) - Edition 01.2009

2. Exhaust gas recirculation system    

197

 

 

 

 

 

 

 

 

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