Tightening torques for main connections of the N62 engine (BMW X5 E53)

Engine cylinder block

Bolts (M11) for fastening the engine main bearings (replace bolts, wash them, do not wash off the coating of the bolts, do not lubricate with oil) – 20 Nm + 100°.

Main bearing cap fastening elements (threaded support bushings) – 6.0 Nm.

Stiffening insert (stretch):

• M8 – 22 Nm;
• M10 – 43 Nm.

Coolant drain plug in the cylinder block:

• M14x1.5 – 25 Nm;

Threaded plug (M18x1.5) of the main lubrication channel – 25 Nm.

Oil nozzle in the cylinder block:

• M6 – 10 Nm;
• M8x1.0 – 12 Nm.

Cylinder head

Cylinder head cover:

• M6 – 10 Nm;
• M7 – 15 Nm.

Bolts (M10) for fastening the cylinder head (replace bolts, wash them, do not wash off the coating of the bolts) – 30 Nm + 90° + 90°.

Oil pan

Oil drain plug:

• M12x1.5 – 25 Nm;
• M18x1.5 – 30 Nm;
• M22x1.5 – 60 Nm.

Oil pan to cylinder block:

• M6 (8.8) – 10 Nm;
• M6 (10.9) – 12 Nm;
• M8 (8.8) – 22 Nm.

Lower part of oil pan to upper part of oil pan (M8) – 24 Nm.

Timing Belt Cover

Timing belt block and its upper and lower covers:

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

Timing belt block, its upper and lower covers:

• M6 – 10 Nm;
• M8 – 20 Nm.

Crankshaft with support

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

• M5 (10.9) – 13 Nm;
• M5 (8.8) – 5.5 Nm.

Flywheel

Flywheel to crankshaft, replace bolts (lubricate the bolt threads with engine oil):

• with manual transmission – 120 Nm;
• with automatic transmission – 105 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, M18x1.5), replace bolt – 100 Nm + 60° + 60° + 60°.

Camshaft

Camshaft Bearing Cap:

• M6 – 10 Nm;
• M7 – 14 Nm;
• M8 – 20 Nm.

Sprocket to camshaft flange (M6) – 15 Nm.

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

Chain tensioner plunger cylinder (M22x1.5) – 65 Nm.

Stud in camshaft (M7) – 20 Nm.

Nut on camshaft stud (M6) – 10 Nm

Sensor wheel to the camshaft (M16x1.5) – 30 Nm.

Variable valve timing system, vanos

Hollow bolt of the actuator unit (M14x1.5) – 32 Nm.

Threaded plug of the actuator unit (M22x1.5) – 50 Nm.

Fitting bolt (left hand thread) tensioner plunger into the splined shaft (M6) – 10 Nm.

Hydraulic line to oil filter support – 32 Nm

Solenoid valve (M27x1.5) to adapter – 25 Nm.

Exhaust camshaft sprocket to shaft (left thread, M12x1.5) – 125 Nm.

Actuator unit to intake camshaft (left thread, M12x1.5) – 110 Nm.

Screw (left thread, M18x1.5) fastenings of the toothed wheel of the intake camshaft position sensor – 40 Nm.

Actuating units to camshafts (M10x1.0) – 80 Nm.

Magnetic wheel (M6) to eccentric shaft – 8 Nm.

Lubrication system

Oil pump to the crankcase, M8 (10.9) – 34 Nm.

Oil pump cover (M6) – 10 Nm.

Sprocket to oil pump:

• M6 – 10 Nm;
• M10 – 45 Nm.
• M10x1 – 25 Nm.

Full flow oil filter (cover):

• M8 – 22 Nm;
• M10 – 33 Nm:
• M12 – 33 Nm.

Oil filter housing and lines to the crankcase:

• M8 – 22 Nm;
• M20x1.5 – 40 Nm.

Oil drain channel to the oil filter and the upper part of the oil pan (hollow bolt, M14x1.5) – 30 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):

• M5 – 5 Nm;
• M18x1.0 – 10 Nm.

Oil drain channel from the crankcase ventilation system oil separator to the upper part of the oil sump (hollow bolt, M12x1.5) – 25 Nm.

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

Cooling system

Coolant pump to the engine crankcase:

• M6 – 10 Nm;
• M7 – 15 Nm;
• 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.

Intake manifold

Intake manifold (air manifold) to the cylinder head:

• M6 – 10 Nm;
• M7 – 15 Nm;
• M8 – 22 Nm.

Sound-absorbing casing for bracket (M6) –.. N·m.

Exhaust manifold

Exhaust pipe (manifold) to cylinder head, lubricate threaded connections with paste "Molykote-HSC":

• M6 – 10 Nm;
• M7 – 15 Nm;
• M8 – 23 Nm.

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

Ignition system

Spark plugs:

• M12x1.25 – 23±3 N·m;
• M14x1.25 – 30±3 N·m.

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) – 7.0 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:

• M4 – 2.0 Nm;
• M5 – 4.0 Nm.

Starter

Fastening the starter to the gearbox housing (M10) – 43 Nm.



Starter support bracket (M5) – 5.0 Nm.

Support bracket to the crankcase – 47 Nm.

Wires to the starter:

• M5 – 5.0 Nm.
• M6 – 7.0 Nm.
• M8 – 13 Nm.

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

Heat shield to starter (M6) – 6.0 Nm.

Engine Wiring Harness and Electrical Equipment

Connecting the battery positive terminal to the contact on the intake manifold (M8) – 15 Nm.

Oil pressure and oil temperature sensors – 8.5 Nm.

Oil level sensor – 8.5 Nm.

Coolant temperature sensor – 20 Nm.

Air temperature sensor – 13 Nm.

Air flow meter –.. Nm;

Camshaft position sensor –.. Nm

Electronic control module compartment cover – 3.0 Nm.

Fuel supply system

Fuel tank to the body on a tension strap:

• bolt M8 – 23 Nm;
• nut M8 – 19 Nm.

Fuel level indicator sensor – 2.0 Nm.

Fuel level indicator sensor retaining ring – 35 Nm.

Fuel tank drain plug – 25 Nm.

Injector to suction pipe (M6) – 10 Nm.

AL to the fuel pump (M5) – 1.6 Nm.

Hose clamps:

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

Expansion tank to the body – 3.5 Nm.

Accelerator pedal module to body – 19 Nm.

Cooling system

Coolant Hose Clamps:

• (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.

Radiator drain plug thread – 2.5 Nm.

Expansion tank to the body – 9.0 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 for the exhaust system – 55 Nm.

Muffler clamp (M8) – 15 Nm.

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

Activated carbon filter for body (M6) – 9 Nm.

Engine mount

Engine mount bracket to engine – 38 Nm.