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Overhaul of the N62 engine of the car BMW X5 E53
General information about the N62 engine
Since 2003, the BMW company has been using a gasoline 8-cylinder engine of the N62 series with a working volume of 4.4 liters and 4.8 liters with a V-shaped...
Since 2003, the BMW company has been using a gasoline 8-cylinder engine of the N62 series with a working volume of 4.4 liters and 4.8 liters with a V-shaped...
Cylinder Block — Design Description
The design of the cylinder block is shown in Figure 5.2. Table 5.2. Cylinder block parameters Engine N62B44 N62B48 Piston-cylinder clearance, mm - nominal 0,03...
The design of the cylinder block is shown in Figure 5.2. Table 5.2. Cylinder block parameters Engine N62B44 N62B48 Piston-cylinder clearance, mm - nominal 0,03...
Oil pan — design description
The oil pan provides a connection between the cylinder block and the oil pan, increasing the structural rigidity of the cylinder block. The design of the oil...
The oil pan provides a connection between the cylinder block and the oil pan, increasing the structural rigidity of the cylinder block. The design of the oil...
Cylinder head — design description
The design of the cylinder head is shown in Figure 5.4. The cylinder head is cast from aluminum alloy. It contains two camshafts for valve drive on plain...
The design of the cylinder head is shown in Figure 5.4. The cylinder head is cast from aluminum alloy. It contains two camshafts for valve drive on plain...
Cylinder Head Cover — Design Description
The cylinder head cover is made of aluminum alloy and is additionally covered by ignition coil casings. Each cylinder head has its own cover with its own...
The cylinder head cover is made of aluminum alloy and is additionally covered by ignition coil casings. Each cylinder head has its own cover with its own...
Valve seats — design description
The N62 valve seats are pressed into the cylinder head, with the valve camber angle being 39.5°. The valves are driven by camshaft cams via roller levers with...
The N62 valve seats are pressed into the cylinder head, with the valve camber angle being 39.5°. The valves are driven by camshaft cams via roller levers with...
Valves and springs — design description
The valves are made of special, corrosion-resistant steel, chrome-plated, and are hardened rods, which are located in the cylinder head in a V-shape, at an...
The valves are made of special, corrosion-resistant steel, chrome-plated, and are hardened rods, which are located in the cylinder head in a V-shape, at an...
Hydraulic compensators — design description
Hydraulic compensators N62 are installed directly in the body of the cylinder head. The valves are driven by the camshaft cams through the plungers of the...
Hydraulic compensators N62 are installed directly in the body of the cylinder head. The valves are driven by the camshaft cams through the plungers of the...
Crankshaft and flywheel — design description
The design of the crankshaft is shown in Figure 5.8. The engine crankshaft is a five-bearing, cast iron with spheroidal graphite. The bearings are made in the...
The design of the crankshaft is shown in Figure 5.8. The engine crankshaft is a five-bearing, cast iron with spheroidal graphite. The bearings are made in the...
Crankshaft bearing shells
The main and connecting rod bearing shells are bimetallic three-layer. Radial clearance between bearing shells and main/connecting rod journals of the...
The main and connecting rod bearing shells are bimetallic three-layer. Radial clearance between bearing shells and main/connecting rod journals of the...
Drive disk — design description
The design of the automatic transmission drive disk is shown in Figure 5.9. With the N62 engine, as standard, an automatic transmission with a drive disk is...
The design of the automatic transmission drive disk is shown in Figure 5.9. With the N62 engine, as standard, an automatic transmission with a drive disk is...
Torsional vibration damper — design description
The design of the torsional vibration damper is shown in Figure 5.8. The color of its marking is black. Permissible axial and radial runout (ovality), – no...
The design of the torsional vibration damper is shown in Figure 5.8. The color of its marking is black. Permissible axial and radial runout (ovality), – no...
Pistons and connecting rods — design description
The design of the piston and connecting rod of the engine cylinder block is shown in Figure 5.10. The pistons are made of aluminum alloy with steel inserts....
The design of the piston and connecting rod of the engine cylinder block is shown in Figure 5.10. The pistons are made of aluminum alloy with steel inserts....
Valve timing mechanism — design description
The design of the engine valve timing drive is shown in Figure 5.11. The engine uses a valve timing mechanism with overhead intake and exhaust camshafts, the...
The design of the engine valve timing drive is shown in Figure 5.11. The engine uses a valve timing mechanism with overhead intake and exhaust camshafts, the...
Removal and installation the engine
Attention! Disconnect the "-" terminal from the battery only with the ignition off. This will erase the KSUD fault codes, anti-theft system codes and...
Attention! Disconnect the "-" terminal from the battery only with the ignition off. This will erase the KSUD fault codes, anti-theft system codes and...
Recommendations for performing operations
The technology of performing work on checking compression, fuel supply pressure, engine oil pressure, checking the thermostat, generator and voltage regulator...
The technology of performing work on checking compression, fuel supply pressure, engine oil pressure, checking the thermostat, generator and voltage regulator...
Replacing the cylinder head cover seals
The design of the engine cylinder heads is shown in Figure 5.4. Removal the cylinder head cover gasket on cylinder bank 5–8 Removing the cylinder head cover...
The design of the engine cylinder heads is shown in Figure 5.4. Removal the cylinder head cover gasket on cylinder bank 5–8 Removing the cylinder head cover...
Replacing the cylinder head
One of the most common reasons for removing the engine cylinder head is damage to the sealing gasket between the head and the cylinder block. Signs of damage...
One of the most common reasons for removing the engine cylinder head is damage to the sealing gasket between the head and the cylinder block. Signs of damage...
Checking the cylinder head for leaks
The cylinder head of the engine must be checked for leaks in the following order. Prepare the equipment "11.9.430", "11.9.431", "11.9.432" and "11.9.433" to...
The cylinder head of the engine must be checked for leaks in the following order. Prepare the equipment "11.9.430", "11.9.431", "11.9.432" and "11.9.433" to...
Replacing the lower part of the engine oil pan
Replacement of the lower part of the engine oil sump (sump) should be carried out in the following order. Unscrew the oil filter cap, the oil will drain into...
Replacement of the lower part of the engine oil sump (sump) should be carried out in the following order. Unscrew the oil filter cap, the oil will drain into...
Replacing the upper part of the oil pan
The design of the engine oil pan is shown in Figure 5.4. Note: There is very little space to remove the engine oil pan, so it is necessary to lower the front...
The design of the engine oil pan is shown in Figure 5.4. Note: There is very little space to remove the engine oil pan, so it is necessary to lower the front...
Replacing the upper timing belt covers
The design of the upper timing belt covers is shown in Figure 5.66. Removal of the left upper timing belt cover of the engine on the cylinder bank 5–8 must be...
The design of the upper timing belt covers is shown in Figure 5.66. Removal of the left upper timing belt cover of the engine on the cylinder bank 5–8 must be...
Replacing the lower timing belt cover
The design of the lower timing belt cover is shown in Figure 5.69. The lower timing belt cover must be replaced in the following order. Prepare the "23.1.040"...
The design of the lower timing belt cover is shown in Figure 5.69. The lower timing belt cover must be replaced in the following order. Prepare the "23.1.040"...
Replacing the front crankshaft oil seal
The front crankshaft oil seal must be replaced in the following order. Prepare tools "11.9.410" and "11.9.420" and remove the vibration damper hub. Set the...
The front crankshaft oil seal must be replaced in the following order. Prepare tools "11.9.410" and "11.9.420" and remove the vibration damper hub. Set the...
Replacing the rear crankshaft oil seal
The rear crankshaft oil seal, on the automatic transmission side, must be replaced in the following order. Remove the gearbox and drain the oil from the...
The rear crankshaft oil seal, on the automatic transmission side, must be replaced in the following order. Remove the gearbox and drain the oil from the...
Replacing the crankshaft
The engine crankshaft must be replaced in the following order. Remove the engine, remove the cylinder head (side 1-4), cylinder head (side 5-8). Remove the...
The engine crankshaft must be replaced in the following order. Remove the engine, remove the cylinder head (side 1-4), cylinder head (side 5-8). Remove the...
Replacing the crankshaft main bearing shells
The crankshaft main bearing shells must be replaced in the following order. Prepare tools "00.2.590" and "00.9.120". Remove and disassemble the engine. Perform...
The crankshaft main bearing shells must be replaced in the following order. Prepare tools "00.2.590" and "00.9.120". Remove and disassemble the engine. Perform...
Replacing the drive disc/flywheel
Attention! The role of the engine flywheel in a power unit with an automatic transmission is played by the drive disk, the compensating clutch and the...
Attention! The role of the engine flywheel in a power unit with an automatic transmission is played by the drive disk, the compensating clutch and the...
Replacing the torsional vibration damper
Caution! When replacing the vibration damper, do not damage the engine cooling system radiator. The torsional vibration damper must be replaced in the...
Caution! When replacing the vibration damper, do not damage the engine cooling system radiator. The torsional vibration damper must be replaced in the...
Replacing the torsional vibration damper hub
The removal of the torsional vibration damper hub must be carried out in the following order. Prepare the tools "11.9.454", "11.3.460", "11.9.451", "11.9.452"...
The removal of the torsional vibration damper hub must be carried out in the following order. Prepare the tools "11.9.454", "11.3.460", "11.9.451", "11.9.452"...
Replacing all pistons
Attention! Pistons and piston pins are matched as a pair and cannot be disassembled. The crankshaft connecting rod bearing cap is machined together with the...
Attention! Pistons and piston pins are matched as a pair and cannot be disassembled. The crankshaft connecting rod bearing cap is machined together with the...
Replacing piston rings
Note. On rings that have been in use, the marking may not be visible. Removed rings should be placed in the sequence of cylinder numbers and positions. Install...
Note. On rings that have been in use, the marking may not be visible. Removed rings should be placed in the sequence of cylinder numbers and positions. Install...
Replacing the alternator drive belt
The poly V-belt of the generator drive is replaced under the following circumstances: when contaminated with coolant or oil; when belt slipping noise occurs...
The poly V-belt of the generator drive is replaced under the following circumstances: when contaminated with coolant or oil; when belt slipping noise occurs...
Replacing the air conditioning compressor drive belt
The poly V-belt of the air conditioning compressor drive is changed under the same circumstances as the alternator drive belt. Note: If the drive belt is to be...
The poly V-belt of the air conditioning compressor drive is changed under the same circumstances as the alternator drive belt. Note: If the drive belt is to be...
Replacing springs of all valves
The design of the valve mechanism is shown in Figure 5.11. Attention! Hydraulic compensators that have been in operation must be installed only in their...
The design of the valve mechanism is shown in Figure 5.11. Attention! Hydraulic compensators that have been in operation must be installed only in their...
Replacing valve stem seals
The replacement of oil scraper caps should be carried out using the same technology as for the M54 engine, taking into account that the old device "11.6.380"...
The replacement of oil scraper caps should be carried out using the same technology as for the M54 engine, taking into account that the old device "11.6.380"...
Replacing the left intake camshaft
Note: The technology for removing and installing the intake camshaft has some differences. Removing the intake camshaft. Prepare the equipment "11.9.470",...
Note: The technology for removing and installing the intake camshaft has some differences. Removing the intake camshaft. Prepare the equipment "11.9.470",...
Installing the intake camshaft
The installation of the left intake camshaft on cylinder bank 5–8 must be carried out starting from cylinder 8 in the following order. Clean all bearing beds...
The installation of the left intake camshaft on cylinder bank 5–8 must be carried out starting from cylinder 8 in the following order. Clean all bearing beds...
Replacing the right exhaust camshaft
The technology for removing and installing the right exhaust camshaft is similar to the technology for the left exhaust camshaft described above. In this case,...
The technology for removing and installing the right exhaust camshaft is similar to the technology for the left exhaust camshaft described above. In this case,...
Replacing the left exhaust camshaft
Note. The technology for removing and installing the left exhaust camshaft is different. Prepare a "cash register" for laying out the parts to be removed by...
Note. The technology for removing and installing the left exhaust camshaft is different. Prepare a "cash register" for laying out the parts to be removed by...
Replacing the right exhaust camshaft
The technology for removing and installing the right exhaust camshaft is similar to the technology for the left exhaust camshaft described above. It is...
The technology for removing and installing the right exhaust camshaft is similar to the technology for the left exhaust camshaft described above. It is...
Checking the valve timing of the left cylinder head
Checking the valve timing of the left cylinder head, on the side of cylinders 5–8, must be carried out in the following order. Prepare the equipment...
Checking the valve timing of the left cylinder head, on the side of cylinders 5–8, must be carried out in the following order. Prepare the equipment...
Checking the valve timing of the right cylinder head
Checking the valve timing of the right cylinder head on the 1–4 cylinder side must be carried out in the same order as on the 5–8 cylinder side. In this case,...
Checking the valve timing of the right cylinder head on the 1–4 cylinder side must be carried out in the same order as on the 5–8 cylinder side. In this case,...
Adjusting the valve timing of the left cylinder head
The valve timing adjustment of the left cylinder head on the 5–8 cylinder side must be carried out in the following order. Prepare the tools "11.9.190",...
The valve timing adjustment of the left cylinder head on the 5–8 cylinder side must be carried out in the following order. Prepare the tools "11.9.190",...
Adjusting the valve timing of the right cylinder head
Adjustment of valve timing of the right cylinder head (fig. 5.131) on the side of cylinders 1–4 it is necessary to carry out in a similar order, while it is...
Adjustment of valve timing of the right cylinder head (fig. 5.131) on the side of cylinders 1–4 it is necessary to carry out in a similar order, while it is...
Replacing the pushrods on the intake side of the left cylinder head
The technology of removing and installing the pushrod levers on the intake side of the left cylinder head has its own characteristics. Removing the pushrod...
The technology of removing and installing the pushrod levers on the intake side of the left cylinder head has its own characteristics. Removing the pushrod...
Replacing the pushrods on the intake side of the right cylinder head
The technology for removing and installing the pushrod levers on the intake side of the right cylinder head is similar to the left head, but has its own...
The technology for removing and installing the pushrod levers on the intake side of the right cylinder head is similar to the left head, but has its own...
Replacing the left actuators of the VANOS intake and exhaust system
Note: The sequence of operations for removing and installing the VANOS actuators is different. Removal of the left-hand VANOS intake and exhaust control units...
Note: The sequence of operations for removing and installing the VANOS actuators is different. Removal of the left-hand VANOS intake and exhaust control units...
Replacing the right VANOS intake and exhaust actuators
Note: The sequence of operations for removing and installing the VANOS actuators is different. Removal of the right-hand VANOS intake and exhaust control units...
Note: The sequence of operations for removing and installing the VANOS actuators is different. Removal of the right-hand VANOS intake and exhaust control units...
Replacing electromagnetic valves
Removal of both left electromagnetic valves (EMV) on cylinder bank 5–8 must be carried out in the following order. Read information from the ECU fault memory....
Removal of both left electromagnetic valves (EMV) on cylinder bank 5–8 must be carried out in the following order. Read information from the ECU fault memory....
Replacing the left eccentric shaft
Attention! The eccentric shafts on cylinder side 1-4 and 5-8 of the engine produced since September 2003 are identical and differ in the installation location...
Attention! The eccentric shafts on cylinder side 1-4 and 5-8 of the engine produced since September 2003 are identical and differ in the installation location...
Replacing the right eccentric shaft
The replacement of the right eccentric shaft on the side of cylinders 1-4 must be carried out in the same order as for cylinders 5-8, while it is necessary....
The replacement of the right eccentric shaft on the side of cylinders 1-4 must be carried out in the same order as for cylinders 5-8, while it is necessary....
Replacing the intermediate levers in the left cylinder head
Note: The technology for removing and installing intermediate levers has differences. Prepare the equipment "11.9.470", "11.9.472", "11.9.473", "11.9.474",...
Note: The technology for removing and installing intermediate levers has differences. Prepare the equipment "11.9.470", "11.9.472", "11.9.473", "11.9.474",...
Replacing the intermediate levers in the right cylinder head
Removal of the intermediate levers in the right cylinder head on the cylinder side 1–4 should be carried out in a similar order for cylinders 5–8, while taking...
Removal of the intermediate levers in the right cylinder head on the cylinder side 1–4 should be carried out in a similar order for cylinders 5–8, while taking...
Replacing eccentric shaft drive motors
The replacement of the left eccentric shaft drive motor on cylinder bank 5–8 must be carried out in the following order. Remove the soundproofing casing,...
The replacement of the left eccentric shaft drive motor on cylinder bank 5–8 must be carried out in the following order. Remove the soundproofing casing,...
Replacing eccentric shaft sensors
The left eccentric shaft sensor on cylinder bank 5–8 must be removed in the following order: Remove the left cylinder head cover, unscrew the bolts (arrows,...
The left eccentric shaft sensor on cylinder bank 5–8 must be removed in the following order: Remove the left cylinder head cover, unscrew the bolts (arrows,...
Replacing engine mount brackets
The left engine mount bracket must be replaced in the following order. Secure the engine in the installation position using the "00.0.200" tool. Remove both...
The left engine mount bracket must be replaced in the following order. Secure the engine in the installation position using the "00.0.200" tool. Remove both...
Replacing engine mount cushions
The right engine mount cushion must be replaced in the following order: Secure the engine in the installation position using the "00.0.200" tool Remove the...
The right engine mount cushion must be replaced in the following order: Secure the engine in the installation position using the "00.0.200" tool Remove the...
Tightening torques for main connections of the N62 engine
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...
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...
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