Catalytic Converter: Service and Repair

Exhaust Manifold, Front Exhaust Pipe With Three Way Catalytic Converter (TWC) And Attachments(Vehicles With Engine Code BDF)







1 Seal
- replace
- 2-piece
- Note installed position
2 Exhaust manifold
- 2-piece
3 25 Nm
- replace
4 23 Nm
5 13 Nm
6 25 Nm
7 Heat shield
8 10 Nm
9 Coolant pipe
- Secured together with heat shield to exhaust manifold
10 Connector
- Terminals are gold-plated
- Black, 6-pin
- For Heated Oxygen Sensor (HO2S) -G39-and Oxygen Sensor (O2S) Heater -Z19-
- Component location: At right vehicle underside
11 Heated Oxygen Sensor (HO2S) -G39- bank 1*, 50 Nm
- Component location: in front catalytic converter
- Only use "G 052 112 A3" to grease thread; do not let "G 052 112 A3" get onto slit of oxygen sensor
- Voltage supply of oxygen sensor heater via Fuel Pump (FP) Relay -J17-
- Check oxygen sensor heater for Oxygen Sensor (O2S) before Three Way Catalytic Converter (TWC)
- Check Oxygen Sensor (O2S) and oxygen sensor control before Three Way Catalytic Converter (TWC)
12 Connector
- Black, 4-pin
- Terminals 3 and 4 gold-plated
- For Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-and Oxygen Sensor (O2S) Heater 1 -Z29-
- Component location: At right vehicle underside
13 Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130- bank 1*, 50 Nm
- Component location: In rear catalytic converter
- Only use "G 052 112 A3" to grease thread; do not let "G 052 112 A3" get onto slit of oxygen sensor
- Voltage supply of oxygen sensor heater via Fuel Pump (FP) Relay -J17-
- Check oxygen sensor heater for Oxygen Sensor (O2S) behind Three Way Catalytic Converter (TWC)
- Check Oxygen Sensor (O2S) and oxygen sensor control behind Three Way Catalytic Converter (TWC)
14 Front exhaust pipe with Three Way Catalytic Converter (TWC)
- Check catalytic converter
15 to front muffler
16 5 Nm
17 Heat shield
- for catalytic converter
18 Mounting clip
- replace
- Slide on to bracket from rear before tightening securing bolt.
19 40 Nm
- replace
20 Seal
- replace
- 2-piece