Exhaust manifold, front exhaust pipe and Three Way Catalytic Converter (TWC) with attachments, removing and installing
WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 1999 Volkswagen Jetta, 1999 Volkswagen GTI, 1998 Volkswagen Jetta, 1998 Volkswagen GTI, and 1997 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.
The following list pertains to Fig 1 .
- Exhaust manifold
- 2-part
- 25 Nm (18 ft lb)
- CO tap tube
- Where applicable
- Connector
- 4-pin
- For Heated Oxygen Sensor (HO2S)
- Secured to right rear assembly mounting
- Check HO2S basic voltage:
- Checking HO2S heating voltage supply:
- Sealing cap
- Heated Oxygen Sensor (HO2S) -G39-
- Tightening torque: 50 Nm (37 ft lb)
- Apply "G5" to threads only
- "G5" must NOT get into slots on probe body
- Checking:
- Nuts, M8 or M10
- Always replace
- Tightening torques: M8: 25 Nm (18 ft lb) M10: 40 Nm (30 ft lb)
- Double clamp
- Center silencer
- Mounting
- Rear silencer
- - Dimension -c-
- Approx. 10 mm (0.39 in.)
- Marking
- For double clamp
- Three places on circumference
- Distance from double clamp to marking, See inset A, item -18-
- Separation point
- For repair of individual parts
- When replacing the center silencer item - 9 -
- Three places on circumference of connecting pipe
- In production center and rear silencers are one unit. For repair, center and rear silencers are supplied individually, with a double clamp for connection
- Cut through connecting pipe at right angle to pipe, at separation point, using body saw, VAG 1523 or equivalent.
- - Dimension -b-
- Approx. 5 mm (0.20 in.)
- Marking
- Three places on circumference
- Marking
- Three places on circumference
- "S" = Manual transmission
- "A" = Automatic transmission
- - Dimension -a-
- Approx. 5 mm (0.20 in.)
- Clamp
- Support
- Mounting
- Note installation position
- Lifting eye
- Front silencer
- Three Way Catalytic Converter (TWC)
- Gasket
- Always replace
- Front exhaust pipe
- Gasket
- 2-piece
- Always replace
- Heat shield