Diesel engine overhaul BMW X5 E53

Design and technical characteristics of diesel engines
BMW X5 series cars with E53 body are equipped with diesel engines of the M57 and M57TU models with a battery fuel system of the type "Common Rail" (Fig. 6.1),...

Cylinder Block — Design Description
The cylinder block has thin-walled, cast-iron liners, made of grey cast iron, the liners of which can be repaired (bored). The angle of the engine cylinder...

Cylinder head — design description
The cylinder head is cast from an aluminum alloy. It contains two camshafts on plain bearings, intake and exhaust valves with their springs. The valves move in...

Cylinder Head Cover — Design Description
The cylinder head cover is made of light alloy and is designed to cover the elements of the gas distribution mechanism (GDM), engine crankcase ventilation,...

Crankshaft and flywheel — design description
The engine crankshaft is a seven-bearing, cast iron with spheroidal graphite. The bearings are made in the body of the cylinder block crankcase in the form of...

Pistons and connecting rods — design description
The design of the piston group is shown in Figure 6.6. Pistons (1) are made of aluminum alloy (hypereutectic silumin) with steel inserts. Each piston has two...

Valve timing mechanism — design description
The camshafts are driven by a roller chain from the crankshaft sprocket, together with the high-pressure pump (HP) drive. The valve timing mechanism includes...

Valve seats — design description
Valve seats (Fig. 6.9) are made of austenitic steel obtained by powder metallurgy and are not subject to replacement. If traces of burning or wear are...

Valve guide bushings — design description
The valve guides are made of a special brass alloy based on bronze and are pressed into the cylinder head. The parameters of the intake and exhaust valve...

Valves and compensators — design description
The valves are made of special, corrosion-resistant steel, chrome-plated, in the form of hardened rods, which are located in the cylinder head in parallel....

Replacing the alternator drive belt tensioner
The generator drive belt tensioner must be replaced in the following order. Remove the fan impeller, air conditioning compressor drive belt and generator....

Replacing the air conditioning compressor drive belt
Caution: When reusing the drive belt, mark its direction of movement so that it can be installed in the same direction. Check the technical condition of the...

Replacing the compressor drive belt tensioner
The replacement of the air conditioning compressor drive belt tensioner must be carried out in the following order. Remove the fan shroud and the front...

Removal and installation the engine
Removing the engine from the car must be done with an assistant, in the following order. Prepare the devices "11.0.020" and "51.2.170", the awning (dense...

Replacing the intake manifold
Attention! All cavities that open during the process of removing units and parts must be securely closed from moisture, dust and dirt. Do not remove the...

Replacing the cylinder head cover
The cylinder head cover must be replaced in the following order: Remove the fan together with the casing, the soundproof casing and the air filter. Attention!...

Replacing the cylinder head gasket
The cylinder head gasket must be replaced in the following order. Remove the cylinder head and the cylinder head gasket (Fig. 6.43). Using alcohol, clean the...

Replacing the engine sump sealing gasket
Caution! Do not lubricate the oil pan sealing gasket with oil. Replacing the oil pan sealing gasket (oil pan) engine must be carried out in the following...

Replacing the torsional vibration damper
The torsional vibration damper must be replaced in the following order. Prepare the devices "11.8.182" and "11.8.183" and remove the protective panels of the...

Replacing the drive disc/flywheel
The drive disk must be replaced in the following order. Prepare the tools "11.9.260", "11.9.263" and "11.9.264", disconnect the "negative" terminal from the...

Replacing the front timing belt cover
The replacement of the front timing belt cover must be carried out in the following order. Prepare the device "11.3.340". Caution: When reusing the timing...

Replacing the seal in the lower timing belt cover
The replacement of the seal in the lower timing cover must be carried out in the following order. Prepare the tools "11.1.210", "11.1.212", "11.5.110",...

Replacing the hydraulic timing chain tensioner
Warning! The timing chain tensioner plunger is under spring pressure. When removing the locking pins, there is a risk of injury due to it flying out. The...

Replacing the engine crankshaft
The engine crankshaft must be replaced in the following order. Prepare the tools "00.9.120" and "11.2.110" and remove the engine. Remove the oil pump, rear...

Replacing crankshaft bearing shells
Crankshaft main bearing shells The replacement of the crankshaft bearing shells must be carried out in the following order. Prepare the tools "00.2.590",...

Replacing the rear crankshaft oil seal
The rear crankshaft oil seal must be replaced in the following order. Remove the gearbox and drain the oil from the engine. Remove the flywheel and unscrew the...

Replacing the cylinder head
Attention! When working on the cooling, fuel supply and lubrication systems, it is necessary to protect the generator from contamination by covering it with a...

Cylinder head overhaul
Before disassembling the cylinder head, it is necessary to prepare the tools "11.9.000", "11.9.001", "11.9.009", "11.9.011" and "11.9.015". The cylinder head...

Checking the cylinder head for leaks
The cylinder head leak test must be performed in the following order. Prepare the "11.6.400" device, consisting of the following devices: "11.6.401";...

Replacing camshafts
The camshafts must be removed in the following order. Prepare the tools "00.9.120", "11.2.300", "11.3.340", "11.6.320", "11.6.321", "11.6.322" and "11.6.480"...

Replacing springs of all valves
Replacement of valve springs must be carried out in the same order as for engines "M54".. "N62", in this case, it is necessary to use devices "11.9.000",...

Checking the wear of the valve guide bushings
Checking the wear of valve guide bushings must be carried out in the same order as for engines "M54".. "N62", using the device "00.2.510" (see fig. 3.7). In...

Replacing valve stem seals
Replacement of oil scraper caps must be carried out on all valves at once, in the same order as for engines "M54".. "N62", using devices "11.1.960", "11.6.370"...

Checking and adjusting valve timing
Checking and adjusting the valve timing should be carried out as described in the section " Replacing camshafts ".

Replacing pistons
Replacement of pistons must be carried out in the same order as for engines "M54".. "N62", while using devices "00.9.120", "11.2.110", "00.2.530", "11.8.140"...

Replacing piston rings
Note: The markings may not be visible on rings that have been in use. Store the removed rings in the order of their position and cylinder numbering....

Replacing the engine mount bracket
The design of the engine mounts is shown in Figure 6.36. The right engine mount bracket must be removed in the following order. Prepare the "00.0.200" device...

Tightening torque of diesel engine connections M57
Engine cylinder block "m57" Bolts (M10) for fastening the engine main bearings (replace bolts, wash them, do not wash off the coating of the bolts, lubricate...

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BMW E53 (1999-2006)