6-cylinder car engine BMW 3 Series E46

Technical data
Total information Engine codes: Engine 2171 cm 3 - M54 B22 Engine 2494 cm 3 - M52TU B25 Engine 2494 cm 3 - М54В25 Engine 2793 cm 3 - M52TUВ28 Engine 2979 cm 3...

Connection tightening force, Nm
Bolts of fastening of automatic transmission to the engine Hex head bolts: M8 - 24 M10 - 45 M12 - 82 Slotted bolts: M8 - 21 M10 - 42 M12 - 72 Bolts of the...

General information
How to use the information in this chapter This part of Chapter 2 describes the types of repairs that can be performed without removing the engine from the...

Compression test — description and analysis of results
1. In the event of deterioration in engine performance or in the event of interruptions in its operation, the cause of which cannot be attributed to the...

Setting the engine to the top dead center position of the piston No. 1
Note. For fixing the engine in the TDC position. special tools are needed to reinstall the valve timing regulators and to check the correct position of the...

Cylinder head cover — removal and installation
Note: New seals and gasket may be required for installation - see text. Withdrawal 1. To ensure sufficient space, remove the passenger compartment air intake...

Crankshaft pulley and vibration damper — removal and installation
Note. If you remove the pulley hub, then during installation it is necessary to replace the mounting bolt. You will also need a torque wrench capable of...

Camshaft drive chain cover — removal and installation
Note. When installing, you will need: new cover gaskets, crankshaft seal and PTU sealant - see text. Withdrawal 1. Drain the coolant ( see chapter 1 ). 2....

Camshaft drive chains — removal, inspection and installation
Secondary circuit Withdrawal 1. Remove the camshaft adjuster as described in paragraph 9. 2. On the right side of the engine, unscrew the tensioner plunger...

Sprockets and chain tensioners — removal, inspection and installation
Camshaft sprockets 1. Removal, inspection and installation of sprockets is described in paragraph 7 as part of the procedure for removing and installing the...

Components of the valve timing regulator (VANOS) — removal, inspection and installation
VANOS regulator assembly Note. The valve timing regulator is located at the ends of the distribution shafts on the front side of the engine. Withdrawal 1....

Camshafts and tappets — removal, inspection and installation
Attention! To perform this operation, you will need a BMW 113 360 fixture. It is extremely difficult to manufacture such a fixture on your own due to its...

Cylinder head — removal and installation
Note. When installing the cylinder head, replace the gasket and bolts. Withdrawal 1. Drain the coolant ( see chapter 1 ). 2. Remove the intake and exhaust...

Pallet — removal and installation
Note. Installation will require a new gasket, a new oil dipstick tube seal and sealant. Withdrawal 1. Remove the crankcase protection from under the engine....

Oil pump and its drive chain — removal, inspection and installation
Oil pump Note. During installation, it will be necessary to replace the O-rings of the oil pick-up pipe and plugs of the pressure reducing valve, as well as...

Cuffs — replacement
Forward cuff of a cranked shaft 1. The operation of replacing this seal is described in paragraph 6 as part of the procedure for removing and installing the...

Flywheel (faceplate) — removal and installation
Note. To install flywheel (faceplates) in place, new bolts and a compound against self-loosening of threaded connections will be required. Withdrawal 1. Remove...

Crankshaft shank bearing — replacement
1. On models with a manual transmission, a ball bearing is located in the crankshaft shank, on which the free end of the gearbox input shaft rests (pic. 16.1)....

Power block supports — inspection and replacement
Inspection 1. The engine has two supports - on both sides of it. 2. If you want to improve access to the supports, raise the front of the car and place it on...

Emergency pressure, oil level and temperature sensors — removal and installation
Emergency oil pressure sensor 1. Unscrew the oil filter cap - this will allow the oil from the filter to pour into the sump and reduce oil loss when replacing...