Vehicles with a gasoline engine.
Attention! There is a risk of injury when jacking up and placing the vehicle on jack stands. Familiarize yourself with the safety precautions outlined in the chapter «car jacking».
Removing
1. Put the car on jack stands.
2. Disconnect the plug (s) lambda probes, see relevant chapter.
3. Disconnect an arm 1 fastenings of a reception pipe (see illustration).
4. Unscrew the flange fastening bolts between the catalytic converter I and the exhaust pipe 2 (see illustration).
Attention! Depending on the design of the motor, the flange connection can be secured with bolts or brackets. When using bolts, check the condition of the blind nuts 3 and, if necessary, replace them with new ones by knocking them out with a suitable punch and holding the collar. Install the new fixed nuts by tightening them to the stop using a suitable flange bolt (see illustration 4.4).
5. Unscrew nuts of a reception pipe from a final collector and remove a pipe, having submitted it downwards.
6. Unscrew the heat shield nuts and remove it together with the exhaust pipe gasket on the exhaust manifold.
7. Check up a condition of a carving of hairpins of fastening of a final collector on the block of cylinders. If the threads are damaged, the studs should be replaced with new ones.
Installation
8. Install and secure heat deflector with new downpipe gasket.
9. Screw the intake pipe to the exhaust manifold with new nuts and tighten them with a torque of 40 Nm.
10. Install a new gasket and attach the catalyst to the downpipe. For screwed connections, the tightening torque is 25 Nm.
11. Screw an arm of a forward reception pipe.
12. Check up a condition of rubber pillows of a suspension bracket of system of release OG and be convinced that pipes of system of release are stretched forward on а=15 mm.
If this is not the case, then loosen the fixing bolts and straighten the pipes in the suspension (see arrow in illustration).
13. Connect the plugs of the lambda probes.
14. Lower the car on wheels.