Models 316i, 318i
Withdrawal
1. Disconnect the front pipe from the exhaust manifold, refer to Section Removal and installation of the inlet pipeline.
2. Turn away two bolts of fastening of the pipeline for air supply in a final collector.
3. Turn away bolts of fastening and remove a final collector from a head of cylinders.
Installation
4. Clean the sealing surfaces on the exhaust manifold and cylinder head. Be sure to replace the gasket with a new one.
5. Lubricate the threads of the exhaust manifold mounting studs with high temperature copper grease.
6. Secure the exhaust manifold with new self-locking copper nuts, tightening them crosswise from the inside to the outside, given in the Specifications efforts.
7. Attach the air supply line with a new gasket to the exhaust manifold.
8. Fasten the downpipe with a new seal to 30 Nm on the exhaust manifold.
Models 320d
Withdrawal
9. Remove the engine air filter element, refer to Section Replacing the air filter element.
10. Remove covers of bolts of fastening of a turbocharger in points -1-.
11. Remove the screen down from the bar -2- (arrow illustration).
12. Turn away bolts of fastening of a turbocharger to a final collector through three openings.
13. Turn away two bolts of fastening of the pipeline recirculation of the fulfilled gases from a final collector.
14. Turn away nuts of fastening and remove a final collector from a head of cylinders.
Installation
15. Clean the sealing surfaces on the exhaust manifold and cylinder head. Be sure to replace the gasket with a new one.
16. Lubricate the threads of the exhaust manifold mounting studs with high temperature copper grease.
17. Secure the exhaust manifold with new self-locking copper nuts, tightening them crosswise from the inside to the outside, given in the Specifications efforts.
18. Attach the air supply line with a new gasket to the exhaust manifold.
19. Fasten the turbocharger with a new gasket to the torque of 45 Nm to the exhaust manifold.
20. Insert the screen from the side to the bar -2-.
21. Replace the covers of the bolts securing the turbocharger to the air filter housing.
22. Install the engine air filter element, refer to Section Replacing the air filter element.
Models 320i, 323i, 328i
Withdrawal
Due to limited space, the right engine mount must be removed using a tool. To do this, the engine must be lifted by a crane.
23. Remove the air collection box, refer to Section Removal and installation of the air intake box.
24. Remove the oxygen sensors from both exhaust manifolds, refer to Section Removal and installation of the oxygen sensor.
25. Turn away nuts of fastening and remove a reception pipe from a final collector, address to the Section Removal and installation of the exhaust system.
26. Raise the engine with a crane by the front eye. If a crane is not available, thread the cable through the eyelet. Insert a strong pipe under the cable and place it on two supports.
Place the BMW tool 00 0 200 on the left and right on the wing supports and secure them with bolts. Another accessory is also available: KLANN No. KL-0205-3US.
27. Raise the engine with a hoist about 5 mm to relieve the engine mounts.
28. Remove the amplifier of a forward part of the car, address to the Section Removal and installation of a beam of a forward suspension bracket.
29. Turn away bolts of fastening of the right support of the engine with an arm from a body and the engine.
30. Disconnect first the front and then the rear exhaust manifold from the cylinder head.
Installation
31. Clean the sealing surfaces on the exhaust manifold and cylinder head. Be sure to replace the gasket with a new one.
32. Lubricate the threads of the exhaust manifold mounting studs with high temperature copper grease.
33. Secure the exhaust manifold with new self-locking copper nuts, tightening them crosswise from the inside to the outside, given in the Specifications efforts.
34. Fasten the downpipe with a new seal to 30 Nm on the exhaust manifold.
35. Fix the right support of the engine and an arm, the efforts resulted in Specifications. Lower the engine, remove the crane.
36. Establish the amplifier of a forward part of the car, address to the Section Removal and installation of a beam of a forward suspension bracket.
37. Install oxygen sensors on both exhaust manifolds, refer to Section Removal and installation of the oxygen sensor.
38. Install the air box, refer to Section Removal and installation of the air intake box.
39. Fix the lower cover of the engine compartment, refer to Section Removal and installation of the bottom cover of an impellent compartment.