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Home >> Volkswagen >> 2005 >> Jetta TDI, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 34 (2.5L - Exhaust System, Emission Controls - Engine Code(S): BGP, BGQ, CBTA & CBUA (Sedan) (A5 Platform)) >> 26 Exhaust System, Emission Controls >> Description And Operation >> Secondary Air Injection System Overview

Secondary Air Injection System Overview

WARNING: This page is about a different variant/trim than selected.
NOTE:

The Secondary Air Injection (AIR) system is no longer installed in vehicles with engine code CBTA from MY 10.

Fig 1: Identifying Secondary Air Injection System Overview
GWWN26-10375Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
  1. Bolt 
    • 10 Nm
  2. Secondary Air Injection Pipe 
    • Observe the tightening sequence, refer to Fig 2.
    • For engine codes BGP, BGQ and CBUA only.
  3. Connector 
    • For the Secondary Air Injection (AIR) solenoid valve.
  4. Secondary Air Injection Solenoid Valve -N112- 
  5. Pressure Tube 
    • Make sure it is secure.
    • To disengage, squeeze together the securing ring.
  6. Secondary Air Injection Sensor 1 -G609- 
    • Installed from MY 09.
  7. Screws 
    • 2 Nm
    • Installed from MY 09.
  8. Bracket 
  9. Gasket 
  10. Bolt 
    • 10 Nm
  11. Vent Tube 
    • For the AIR pump motor.
  12. Secondary Air Injection Pump Motor -V101- 
  13. Rubber Bushing 
  14. Bolt 
    • 25 Nm
  15. Nut 
    • 10 Nm
  16. Intake Manifold Support 
    • With the mount for the AIR pump motor.
  17. Cylinder Head 
  18. Connecting Pipe 
Fig 2: Identifying Connecting Tube - Tightening Sequence
GWWM26-0181Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Replace all seals for the pipe -A-.

-- Install all bolts only hand tight.

-- Tighten the bolts -1- first, then bolt -2- and then bolt -3- to 10 Nm.