Tightening torque of diesel engine connections M57 (BMW X5 E53)

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 with engine oil) – 20 Nm + 50°.

Stiffening insert (stretch):

• all M8 - 22 Nm;
• all M10 - 43 Nm.

Coolant drain plug in the cylinder block:

• all M14x1.5 - 25 Nm;

Threaded plug (M12x1.5) of the main lubrication channel – 20 Nm.

Oil nozzle in the cylinder block:

• all M6 - 10 Nm;
• all M8x1.0 — 12 Nm.

Cylinder head bmw x5 e53

Cylinder head cover:

• all M6 - 10 Nm;
• all M7 - 15 Nm.

Bolts (M10/M12) for fastening the cylinder head (replace bolts, wash them, do not wash off the coating of the bolts) – 80 Nm + loosen by 180° + 50 Nm + 90° + 90°;

Oil pan

Oil drain plug:

• all M12x1.5 - 25 Nm;
• all M18x1.5 - 30 Nm;
• all M22x1.5 - 60 Nm;

Oil pan to cylinder block:

• all M6 (8.8) - 10 Nm;
• all M6 (10.9) - 12 Nm;
• all M8 (8.8) — 22 Nm;

Lower oil pan to upper oil pan (replace bolts with sealant):

• all M6 (8.8) - 10 Nm;
• all M8 (8.8) — 22 Nm;
• all M6 (10.9*) - 12 Nm;
• N62 M8 — 24 Nm.

Timing Belt Cover

Timing belt block and its upper and lower covers:

• all M6 - 10 Nm;
• all M7 - 15 Nm;
• all M8 - 22 Nm;
• all M10 - 47 Nm.

Threaded plug (M30x1.0) in the timing belt cover – 70 Nm.

Threaded plug (M40x1.5) in the timing belt cover – 30 Nm.

Crankshaft with support

Replace the toothed wheel of the speed sensor of the crankshaft speed sensor to the crankshaft, bolts:

• all M5 (10.9) — 13 Nm;
• all M5 (8.8) — 5.5 Nm.

Flywheel

Flywheel to crankshaft, replace bolts – 120 Nm.

Connecting rod with bearings

Replace connecting rod bolts, wash and lubricate with engine oil – 5.0 Nm + 20 Nm + 70°.

Torsional vibration damper

Pulley/torsional vibration damper to hub (M8) – 22.0 Nm.

Torsional vibration damper for crankshaft (central bolt/bolts, M10), replace bolt – 40 Nm + 60° + 60°.

Camshaft

Camshaft Bearing Cap:

• all M6 - 10 Nm;
• all M7 - 14 Nm;
• all M8 - 20 Nm.

Sprocket to camshaft flange (M7) – 20.0 Nm + 35°.

Chain tensioner cap nut (M22x1.5) – 40 Nm.

Chain tensioner plunger cylinder (M26x1.5) – 50 Nm.

Stud (M7) in the camshaft – 20 Nm.

Nut (M6) on the camshaft stud – 10 Nm.

Bolts (M16x1.5) for fastening the chain tensioner bar and chain tensioner bar – 20 Nm.

Lubrication system

Oil pump (M8) to the crankcase – 23 Nm.

Oil pump cover (M6) – 10 Nm.

Sprocket to oil pump:

• all M6 - 10 Nm;
• all M10 - 45 Nm.
• all M10x1.0 — 25 Nm.

Full flow oil filter (cover):

• all M8 - 22 Nm;
• all M10 - 33 Nm;
• all M12 - 33 Nm.

Oil filter housing and lines to the crankcase:

• all M8 - 22 Nm;
• all M20x1.5 — 40 Nm.

Oil line for lubrication of bearing beds and camshaft cams (M6) – 10 Nm.

Oil line for lubrication of camshaft cams to cylinder head (hollow bolt):

• all M5 - 5 Nm;
• all M18x1.0 — 10 Nm.

Oil lines from the oil radiator to the oil filter housing (M8) – 22 Nm.

Oil pipelines to the TC:

• bolt (M8) - 22 Nm;
• hollow bolt - 25 Nm;
• union nut - 30 Nm.

Oil lines from the TC to the crankcase (hollow bolt, M16x1.5) – 40 Nm.

Oil drain line to the exhaust manifold and cylinder block (clamp) – 3.0 Nm.

Cooling system

Coolant pump to the engine crankcase:

• all M6 - 10 Nm;
• all M7 - 15 Nm;
• all M8 - 22 Nm.

Fan drive clutch to coolant pump (left-hand thread union nut) – 40 Nm.



Thermostat housing (M6) – 10 Nm.

Bleed nipple (M8) – 8.0 Nm.

Pipeline

Intake manifold (air manifold) to the cylinder head:

• all M6 - 10 Nm;
• all M7 - 15 Nm;
• all M8 - 22 Nm.

Exhaust manifold

Exhaust pipe (manifold) to cylinder head (M7), lubricate threaded connections with paste "Molykote-HSC" – 20 Nm;

Exhaust gas oxygen sensor (M18x1.5) – 50 Nm.

TC to the exhaust manifold (M10) – 50 Nm.

Oil supply line to the transmission and cylinder block – 25 Nm.

Clamp for fastening the charge air hoses – 6.0 Nm.

Vacuum pump to the cylinder head (M8) – 22 Nm.

Inlet pipe to EGR valve – 8.0 Nm

Engine electrical equipment

Knock sensor – 20 Nm.

The crankshaft speed sensor and its position at the top dead center (TDC) of the first cylinder, the bolt (M6) must be replaced - 10 N·m.

Electronic control module compartment cover – 4.4 Nm.

Generator

Wires to the generator:

• contact D+ (M6) - 7 Nm;
• contact B+ (M8) — 13 Nm.

Generator pulley – 45 Nm.

Generator pulley with water cooling jacket – 80 Nm.

Rear clamp – 3.5 Nm.

Wire retainer cylinder bolt – 3.5 Nm.

Voltage regulator:

• all M4 - 2.0 Nm;
• all M5 - 4.0 Nm.

Starter

Fastening the starter (M10) to the gearbox housing – 47 Nm.

Starter support bracket (M5) – 5.0 Nm.

Support bracket to the crankcase – 47 Nm.

Wires to the starter:

• all M5 - 5.0 Nm.
• all M6 - 7.0 Nm.
• all M8 - 13 Nm.

Terminal of the battery pole to the starter (M8) – 11 Nm.

Heat shield to starter (M6) – all 6.0 Nm.

Engine Wiring Harness and Electrical Equipment

Connecting the positive terminal of the battery to the contact on the intake manifold (M8) – 7.0 Nm.



Cable box to cylinder head (M6x12) – 4.0 Nm.

Oil pressure and oil temperature sensors – 14 Nm;

Oil level sensor – 8.5 Nm

Coolant temperature sensor – 13 Nm.

Air temperature sensor – 13 Nm.

Air duct to fuel cooler – 2.0 Nm.

Air flow meter – 4.5 Nm.

Camshaft position sensor – 4.5 Nm.

Electronic control module compartment cover – 3.0 Nm.

Fuel supply system

Fuel tank to the body on a tension strap:

• all M8 (bolt) - 23 Nm;
• all M8 (nut) - 19 Nm.

Fuel level indicator sensor – 2.0 Nm.

Fuel level indicator sensor retaining ring – 35 Nm.

Fuel tank drain plug – 25 Nm.

AL to the fuel pump (M5) – 1.6 Nm.

Hose clamps:

• all (10 – 16 mm) – 2.0 Nm.
• all (18 – 33 mm) – 3.0 Nm.
• all (37 – 43 mm) – 4.0 Nm.

Expansion tank to the body – 3.5 Nm.

Accelerator pedal module to body – 19 Nm.

Star (M14x1.5) for high-pressure fuel pump (common Rail system) – 65 Nm.

Injector in the head cover (CR, M6) – 9.0 Nm

Pressure pipes (CR) to injectors (M12x1.5):

• 30.0 Nm (yellow, chrome, before September 2002.)
• 23.0 Nm (yellow, chrome, since September 2002.)
• 20.0 Nm (grey, phosphate, since October 2000.)

Hydraulic accumulator (distributor) / NVD (M14x1.5):

• 35.0 Nm (yellow, chrome, before October 2000.);
• 23.0 Nm (yellow, chrome, since September 2002.);

Line pressure sensor (CR) – 38.0 Nm.

Pressure regulator for high-pressure fuel pump (CR) – 9.0 Nm.

Pressure regulator to the hydraulic accumulator (CR) – 80 Nm.

Return pipeline to the main line (hollow bolt) – 25 Nm.

Cooling system

Coolant Hose Clamps:

• all (32 – 48 mm) – 2.5 Nm.

Cooling system bleed screw – 8.0 Nm.



Expansion tank level sensor – 3.0 Nm.

Radiator to body (M6) – 10 Nm.

Threaded plug (M14x1.5) of the radiator hole – 15 Nm.

Expansion tank to the body – 4.0 Nm.

Automatic transmission oil cooler to body – 14 Nm.

Pipes to the automatic transmission oil cooler – 25 Nm.

Oil cooler pipe brackets – 6.0 Nm.

Union nut (M18x1.5) of the oil line fitting to the automatic transmission and radiator – 20 Nm.

Hollow bolt (M16x1.5) of the oil line – 37 Nm.

Exhaust system

Neutralizer to TC and fork to neutralizer (M10) – 42 Nm.

Neutralizer for the exhaust system – 55 Nm.

Muffler clamp (M8) – 15 Nm.

Additional muffler to intermediate muffler (M8) – 30 Nm.

Engine mount

Engine mount bracket to engine – 38 Nm.

[The text is based on materials from the website «www.bmwman.ru»]