An exhaust manifold 1. Nut. Replace. Lubricate with heat-resistant paste; 2. Heat shield bracket; 3. Exhaust manifold; 4. Gasket. Replace; 5. Thermal insulation shield; 6. Bolt, 10 Nm; 7. Lambda probe in front of the catalyst. Cylinder bank 1 (right) Lambda probe -G39-, cylinder bank 2 (left) lambda probe 2-G108-; 8. Catalyst. Protect from impacts and jolts; 9. Nut. Replace. Lubricate with heat-resistant paste. 23 Nm; 10. Gasket. Replace
Left exhaust manifold. Sequence and tightening torque
Tighten the nuts in the sequence -1...9- in 3 steps:
- 1. Tighten the bolts by hand until they stop
- 2. Pre-tighten to 15 Nm
- 3. Tighten to 25 Nm
Right exhaust manifold. Sequence and tightening torque
Tighten the nuts in the sequence -1...9- in 3 steps:
- 1. Tighten the bolts by hand until they stop;
- 2. Pre-tighten to 15 Nm;
- 3. Tighten to 25 Nm
Secondary air supply system 1. Secondary air hose; 2. Seal O-rings. Replace; 3. Electric motor of the secondary air supply fan-V101-; 4. Rubber-metal support; 5. Secondary air supply pump motor holder -V101 -; 6. Nut, 9 Nm; 7/12/16. Bolt, 9 Nm; 8/20. Pad. Replace; 9/19. Bolts, 9 Nm; 10. Vacuum hose (only a/m incl. for USA); 11. Right combined secondary air supply valve; 13. Seal ring (only a/m incl. for USA). Replace; 14. Secondary air pressure sensor 1 -G609- (only a/m incl. for USA); 15. Pipe for secondary air; 17. Left combined secondary air supply valve; 18. Vacuum hose (only a/m incl. for USA); 21. Hose second, air; 22. Seal O-rings. Replace
Heat shield of the combined secondary air supply valve.
Tighten the bolts -arrows- of the heat shield -1- to 9 Nm.
Removing the secondary air pump
Remove the front sound insulation. Disconnect email plug connection -3-secondary pump motor. air -V101-. Remove secondary supply hoses -1- and -2-. air.
For better understanding, the installation position is shown with the wheel arch liner removed. Use a screwdriver -1- to unlock the lock -arrow A-. Detach air intake grille -2- from bumper trim -arrow B-.
Unscrew bolts -1- and -2-, remove the sound insulation screen of the bumper trim towards the rear.
Unscrew the bolts -arrows- and remove the secondary air pump.
For better understanding, the installation position is shown with the power steering pump removed.
Installation
Installation is in reverse order, and the seal must be replaced. rings. Install the front soundproofing screen. Install sound insulation.
Removing the left secondary feed combination valve. air
Remove the left front muffler. Remove the stretch. Remove plug connector -1- for lambda probe 2 after catalytic converter -G131- from holder, disconnect and place to one side.
Pos. -2,3,4- and -arrows- are ignored.
Unscrew the nuts -arrows- and bolt -1-, remove the left catalytic converter from the exhaust manifold and place it at the rear.
Unscrew the bolts -arrows- and remove the heat shield -1-.
Unscrew bolts -1- and -2- and remove left secondary feed combination valve. air.
Installation
Install in the reverse order; replace the gasket. Install the left catalytic converter. Install a stretcher.
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