volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Engine code BJB > < Assembly overview - parts of exhaust gas recirculation
Engine codes AVQ, BKC, BRU, BXE and BXF
Engine codes AVQ, BKC, BRU, BXE and BXF
  Note
t  The exhaust gas recirculation system is activated by the diesel direct injection system control unit -J248- via exhaust gas recirculation valve -N18- (electric-pneumatic) to the exhaust gas recirculation valve (mechanical).
t  The electro-pneumatic exhaust gas recirculation valve -N18- is located in the solenoid valve block.
t  The cone-shaped plunger in the mechanical exhaust gas recirculation valve ensures that various cross sectional openings are possible at different plunger lifts.
t  Pulsed control enables every conceivable valve position.
t  Renew self-locking nuts.
   
1 - 22 Nm
2 - Intake manifold
q   With exhaust gas recirculation valve and intake manifold flap motor -V157-.
q   Tighten securing bolts to 22 Nm.
3 - Seal
q   Renew.
4 - Connecting pipe
5 - Radiator
q   For exhaust gas recirculation.
6 - 10 Nm
7 - Exhaust manifold
8 - Connecting pipe
Tightening sequence:
q   1. Attach to bypass flap
q   2. Attach to manifold
q   3. Tighten to bypass flap
q   4. Tighten to manifold
9 - Bypass flap
q   When activated, directs exhaust gas to exhaust gas recirculation cooler via the electro-pneumatic exhaust gas recirculation valve -N18-.
10 - Bracket
q   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
  N26-0530

Engine code BJB > < Assembly overview - parts of exhaust gas recirculation