Minor car engine repairs BMW 7 Series E32

Repair operations performed without removing the engine from the vehicle
Note: Minor engine repairs are repairs that can be performed without removing the engine from the vehicle. All information regarding engine removal,...

Setting the first cylinder to top dead center (TDC)
Note: The first cylinder is located closest to the radiator. The following procedure assumes that the distributor (if any) set to the appropriate position. If...

Cylinder Head Cover — Removal and Installation
Removal Disconnect the ground cable from the battery. Separate the breather hose from the cylinder head cover. Where necessary, loosen and remove the intake...

Intake manifold — removal and installation
Removal Allow the engine to cool completely, then release the pressure in the fuel injection system. Disconnect the ground cable from the battery. Drain some...

Exhaust manifold — removal and installation
Caution: Make sure the engine is completely cool before working on the exhaust system. Disconnect the ground cable from the battery. On models where the air...

Timing Chain Covers — Removal and Installation
Note: The upper timing chain cover can be removed separately. If both covers need to be removed, special tools are required. Removal Disconnect the ground...

Drive chain and sprockets — removal, inspection and installation
In the M30 engine, the timing mechanism is driven by a chain. It ensures synchronous rotation of the camshaft twice as slow as the crankshaft. The small volume...

Chain tensioner — removal and installation
If the timing chain is noisy, remove and check the chain tensioner, which is installed on the right side of the engine. The timing chain is tensioned by a...

Seals — replacement
Note: The seals are installed with the sealing lips inward (to the engine). Front camshaft oil seal Remove only the upper timing chain cover. Place the cover...

Cylinder head — removal and installation, gasket replacement
Removal On engines equipped with fuel injection, relieve the fuel system pressure. Disconnect the ground cable from the battery. If the battery is located in...

Oil pan — removal and installation
Drain the engine oil. Jack up the front of the car and place it on axle stands. Remove the mudguards from under the engine. If present, disconnect the hoses...

Oil pump — removal, inspection and installation
Removal Remove the oil pan. Remove the three bolts securing the driven gear to the pump. Note: On some models the gear is secured with one central nut....

Flywheel/Drive Disc — Removal and Installation
Remove the gearbox. On vehicles with a manual transmission, remove the clutch. Where necessary, mark the flywheel/drive plate position on the crankshaft. The...

Rear Crankshaft Oil Seal — Replacement
Remove the flywheel or drive disc. Remove the bolts and/or nuts securing the seal housing to the engine block. Be sure to remove the two bolts (bottom)...

Engine Mounting Brackets — Inspection and Replacement
Engine mount brackets rarely require attention, but broken or damaged brackets should be replaced immediately. Inspection During inspection, the engine should...

Valve clearances
Valve clearance is one of the factors that determines how long the intake and exhaust valves will be open. If the valve clearance is too large, then part of...

Minor repairs of M52 series petrol engines. General description
Note: This chapter contains features that are unique to this series of engines. For general information on minor engine repairs, please refer to previous...

Cylinder head cover for M52 series petrol engines — removal and installation
Removal Remove the cover and disconnect the ignition coil connectors, while folding the metal brackets upward. Unscrew the ignition coils from the cylinder...

Cylinder head of gasoline engines of the M52 series — removal and installation
Elements of the cylinder head of the M52 engine 1 - cylinder head; 2 - cylinder head gasket; 3 — camshaft bearing housings; 4 — protective cover of the intake...

Valve clearances of gasoline engines of the M52 series
The need to adjust the valve clearance on engines with 4 valves per cylinder has disappeared. Hydraulic tappets provide the required clearance each time the...

Cylinder head of the M70 series gasoline engine — removal and installation
Note: This chapter contains features specific to this series of engines. For general information on minor engine repairs, please refer to the previous chapters...

Cylinder head of diesel engine series M51 — removal and installation
Note: This chapter contains features that are unique to this series of engines. For general information on minor engine repairs, please refer to previous...

Poly V-belt for diesel engine M51 series — replacement
Insert the shock absorber and V-belt tensioner bracket and secure. Install the V-belt. Secure the front muffler pipe. Place a strong screwdriver or similar...

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