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