# Exhaust manifold, remove and install.

Drain coolant from cylinder block drain plug on right side of block, behind exhaust manifold. |
Remove coil wire from coil, unplug temp sensors on coolant manifold on right side of engine, near oil fill cap. Remove 10mm nut retaining harness to distributor housing. |
Remove upper radiator hose completely and remove thermostat hose from coolant manifold at right side of engine. |
Remove the two 10mm bolts securing coolant feed pipe to cylinder head cooling pipe. Remove hose from water pump and coolant reservoir, move pipe aside. |
Remove the eight 10mm bolts securing cooling pipe to cylinder head and remove pipe, in order to gain clearance to exhaust manifold nuts. |
Remove the sixteen 9mm nuts from the exhaust manifold. |
NOTE: Ensure coolant is drained before the following steps to ensure coolant does not enter open exhaust system. Coolant will damage the catalytic converter.
Remove bolts from exhaust manifold / exhaust pipe flange. |
Remove bolt from exhaust bracket at transmission. |
Remove both brackets from the front sway bar, allow bar to hang down from links. |
Pull exhaust manifold away from cylinder head and out bottom of engine bay.
If necessary, remove nut from right engine mount, raise engine and/or drop exhaust system for more clearance.

### Installation:

Replace all copper nuts and gaskets. |

### Part Numbers:

Gasket, manifold to head. 4 required | : | 11 61 1 312 961
Gasket, manifold to catalyst. 2 required | : | 11 76 1 308 686
Bolt, M10x45 - manifold to cat, 3 required | : | 07 11 9 913 855
Bolt, M10x50 - manifold to cat, 1 required | : | 07 11 9 913 859
Nut, M10 - manifold to cat, 3 required | : | 18 30 1 737 744
Nut, M6 - manifold to head, 16 required | : | 11 62 1 304 755
Stud, M6x35 - manifold to head, 16 required | : | 11 12 1 312 096

E30 M3 Repair Manual V2.7. Copyright ©1999-2001 Koala Motorsport & Brett Anderson