BMW X5 Owners & Service Manuals

BMW X5: Removing And Installing/Replacing Left Inlet Camshaft (N62 From 9/03 And N62TU)

BMW X5 (G05) 2019-2024 Service & Repair Manual / Engine / Engine (N62TU V8) / Camshaft / Removing And Installing/Replacing Left Inlet Camshaft (N62 From 9/03 And N62TU)

Special tools required:

(cylinder bank 5 to 8)

Necessary preliminary tasks:

IMPORTANT: The inlet camshaft must first be rotated so that when the bearing bracket is removed the intermediate levers do not slip out and damage the camshaft.

Rotate inlet camshaft against direction of rotation until lettering (1) on 8th cylinder points upwards in cylinder axis and cam is horizontal.

Camshaft
Fig. 189: Locating Camshaft Numbers

IMPORTANT: Camshaft bearing caps of cylinders 1 to 4 and 5 to 8 must not be mixed up.

NOTE: Bearing caps of inlet camshaft are marked on cylinder bank 5 to 8 with R E1 to R E5 from inlet side.

Release nuts and remove bearing cap R E1.

Camshaft
Fig. 190: Locating Camshaft Bearing Caps Nut

Release 8 nuts of bearing bracket (1) from outside to inside.

Camshaft
Fig. 191: Locating Nuts Of Bearing Bracket

NOTE: Rocker arms are freely accessible after bearing bracket has been removed.

Do "not" remove rocker arm (1) on inlet side.

IMPORTANT: Rocker arms (1) are divided into individual tolerance classes.

The tolerance classes are designated as illustrated with the numbers from 1 to 4.

Used rocker arms (1) may only be reused in the same position.

When replacing rocker arms (1) on inlet side: install rocker arms of the same tolerance class in the same position.

Camshaft
Fig. 192: Locating Rocker Arms On Inlet Side

Camshaft
Fig. 193: Identifying Special Tool (11 9 470)

IMPORTANT: Do not tilt bearing bracket (1).

Carefully lift out bearing bracket (1).

Camshaft
Fig. 194: Identifying Bearing Bracket

Place bearing bracket (1) with inlet camshaft and eccentric shaft as illustrated on special tool 11 9 470.

Secure bearing bracket (1) with a nut (special tool 11 9 473 ).

Camshaft
Fig. 195: Identifying Special Tool (11 9 470) And (11 9 473)

IMPORTANT: The lower section of the bearing bracket (1) is machined with the cylinder head and must not be mixed up.

NOTE: Lower section of bearing bracket (1) remains on cylinder head.

Camshaft
Fig. 196: Identifying Lower Section Of Bearing Bracket On Cylinder Head

NOTE: This work step will only be necessary if after the inlet camshaft has been removed the eccentric shaft is also to be removed.

If necessary, remove eccentric shaft sensor (2).

Camshaft
Fig. 197: Locating Eccentric Shaft Sensor

NOTE: Removal of the intermediate levers and torsion springs is described on the 8th cylinder. The same procedure is applicable to cylinders 5 to 7.

Raise one end of torsion spring (1) with special tool 11 9 480.

Lift out intermediate lever (2) and set down in an orderly fashion.

IMPORTANT: Keep holding torsion spring (1) with special tool 11 9 480.

Camshaft
Fig. 198: Identifying Torsion Spring, Intermediate Lever With Special Tool (11 9 480)

Attach special tool 11 9490 to end of torsion spring.

Support end of torsion spring protected with special tool 11 9490 on inlet camshaft.

Camshaft
Fig. 199: Identifying Special Tool (11 9 480) And (11 9 490)

IMPORTANT: Intermediate levers (2) are divided into individual tolerance classes.

Only intermediate levers of the same tolerance class may be fitted in a single cylinder head.

The tolerance classes are designated as illustrated with the numbers from 1 to 5.

Used intermediate levers (2) may only be reused in the same position.

Camshaft
Fig. 200: Locating Intermediate Levers

Raise second end of torsion spring (1) with special tool 11 9 480.

Lift out intermediate lever (2) and set down in an orderly fashion.

IMPORTANT: Keep holding torsion spring (1) with special tool 11 9 480.

Camshaft
Fig. 201: Identifying Torsion Spring With Special Tool (11 9 480)

Attach special tool 11 9490 to second end of torsion spring.

Support end of torsion spring protected with special tool 11 9 490 on inlet camshaft.

Camshaft
Fig. 202: Identifying Special Tool (11 9 480) And (11 9 490)

Release screw (1).

Camshaft
Fig. 203: Identifying Camshaft Screw

Remove torsion spring (1) and special tool 11 9 490.

Camshaft
Fig. 204: Identifying Torsion Spring With Special Tool (11 9 490)

Remove intermediate levers and torsion springs of cylinders 5 to 7 according to the same procedure and set down in an orderly fashion.

Unscrew nut (special tool 11 9 473 ).

Camshaft
Fig. 205: Identifying Camshaft Nut With Special Tool (11 9 473)

IMPORTANT: Camshaft bearing caps of cylinders 1 to 4 and 5 to 8 must not be mixed up.

NOTE: Bearing caps are marked in graphic with R E2 to R E5.

Remove bearing caps R E2 to R E5 and place to one side in order.

Camshaft
Fig. 206: Identifying Camshaft Bearing Caps Of Cylinders

Lift out inlet camshaft (1).

Camshaft
Fig. 207: Identifying Inlet Camshaft

NOTE: Further tasks: The section Removing and installing left eccentric shaft contains important installation instructions.

If necessary, replace plain compression rings (1).

IMPORTANT: Plain compression rings (1) can easily break.

Plain compression rings (1) are engaged at joint.

Press compression ring (1) on one side into groove, pull up on other side and remove catch.

Carefully pull compression ring (1) apart and remove towards front.

Camshaft
Fig. 208: Pulling Compression Ring

NOTE: Inlet camshaft of cylinder bank 5 to 8 is marked with "EIN 58".

If necessary, replace sensor gear (1).

Release screw (2) and remove sensor gear (1).

Camshaft
Fig. 209: Identifying Sensor Gear And Screw

Installation:

Installation of inlet camshaft is described separately from removal.

Clean all bearings and cams of inlet camshaft and lubricate with engine oil.

NOTE: Camshaft has a groove and sensor gear has a lug for fastening purposes.

Camshaft
Fig. 210: Locating Camshaft Groove And Sensor Gear

Fit sensor gear (1) and align to groove in camshaft.

Insert screw (2) and tighten down.

Tightening torque 11 31 14AZ.

Camshaft
Fig. 211: Identifying Sensor Gear And Screw

Installing plain compression rings (1):

IMPORTANT: Plain compression rings (1) can easily break.

Carefully pull compression ring (1) apart and install from front.

Press compression ring (1) on one side into groove, install catch on other side.

Camshaft
Fig. 212: Installing Plain Compression Rings

Insert inlet camshaft (1) so that cams point upwards at cylinder 5 as shown in graphic.

Camshaft
Fig. 213: Locating Inlet Camshaft

Make sure bearing shells (1) of eccentric shaft are engaged in bearing bracket.

NOTE: Bearing shell (1) is guided in a groove in bearing cap.

Camshaft
Fig. 214: Identifying Bearing Shell

Check dowel sleeves (1) for damage and correct installation position.

Camshaft
Fig. 215: Identifying Dowel Sleeves

NOTE: Bearing caps are marked in graphic with R E2 to R E5.

Fit bearing caps R E2 to R E5.

Camshaft
Fig. 216: Identifying Camshaft Bearing Caps Of Cylinders

NOTE: Initially tighten special tool 11 9 473 without play only.

Secure bearing bracket and bearing cap with nut (special tool 11 9 473 ).

Camshaft
Fig. 217: Identifying Camshaft Nut With Special Tool (11 9 473)

NOTE: The mounting of the bearing bracket described later can only be performed if the first bearing of the inlet camshaft is aligned with special tool 11 9 472.

Fit special tool 11 9 472 as shown in graphic and align inlet camshaft.

Camshaft
Fig. 218: Locating Special Tool (11 9 472) And (11 9 473)

Fit centering sleeves (special tool 11 9 475 ) and align special tool 11 9 472 to bearing caps 2 and 3.

Camshaft
Fig. 219: Identifying Special Tool (11 9 472) And (11 9 475)

Insert special tool 11 9 474 and initially tighten without play.

NOTE: Special tools 11 9 472 , 11 9 474 and 11 9 475 remain fitted until all torsion springs and intermediate levers have been installed.

Camshaft
Fig. 220: Identifying Special Tool (11 9 472) And (11 9 474)

NOTE: Installation of the intermediate levers and torsion springs is described on the 8th cylinder. The same procedure is applicable to cylinders 5 to 7.

Attach special tool 11 9 490 to ends of torsion spring.

Install torsion spring (1).

Camshaft
Fig. 221: Identifying Torsion Spring With Special Tool (11 9 490)

Insert screw (1) and tighten down.

Camshaft
Fig. 222: Identifying Camshaft Screw

IMPORTANT: Intermediate levers (2) are divided into individual tolerance classes.

Only intermediate levers of the same tolerance class may be fitted in a single engine.

The tolerance classes are designated as illustrated with the numbers from 1 to 5.

Used intermediate levers (2) may only be reused in the same position.

Lubricate all sliding surfaces on intermediate lever (2) with engine oil.

Camshaft
Fig. 223: Locating Intermediate Levers

Raise torsion spring (1) with special tool 11 9 480.

Remove special tool 11 9 490.

Camshaft
Fig. 224: Identifying Special Tool (11 9 480) And (11 9 490)

Hold torsion spring (1) with special tool 11 9 480.

Install intermediate lever (2) from above.

Insert end of torsion spring (1) into guide on intermediate lever (2).

Camshaft
Fig. 225: Identifying Torsion Spring With Special Tool (11 9 480)

Raise second end of torsion spring with special tool 11 9 480.

Remove special tool 11 9 490.

Camshaft
Fig. 226: Identifying Special Tool (11 9 480) And (11 9 490)

Hold torsion spring (1) with special tool 11 9 480.

Install intermediate lever (2) from above.

Insert end of torsion spring (1) into guide on intermediate lever (2).

Camshaft
Fig. 227: Identifying Torsion Spring, Intermediate Lever With Special Tool (11 9 480)

Install eccentric shaft sensor (2).

Insert screws and tighten down eccentric shaft sensor (2).

Camshaft
Fig. 228: Locating Eccentric Shaft Sensor

Remove special tool 11 9 474.

Camshaft
Fig. 229: Identifying Special Tool (11 9 474)

Remove special tool 11 9 472 and special tool 11 9 475.

Camshaft
Fig. 230: Identifying Special Tool (11 9 480) And (11 9 490)

Ends of compression rings (1) point upwards.

Make sure compression rings (1) are engaged at ends.

Camshaft
Fig. 231: Locating Compression Rings

IMPORTANT: Rocker arms (1) slip slightly when bearing bracket is fitted.

Make sure rocker arms (1) are secured as illustrated on hydraulic valve clearance compensating elements and on valves.

Align rockers (1) straight.

Camshaft
Fig. 232: Identifying Rocker Arms

Remove special tool 11 9 473.

Remove bearing bracket (1) from special tool 11 9 470.

Camshaft
Fig. 233: Identifying Special Tool (11 9 470) And (11 9 473)

IMPORTANT: Do not tilt bearing bracket (1).

Lower bearing bracket (1) from above and carefully bring into contact with cylinder head.

Insert nuts and tighten by hand without play.

IMPORTANT: Make sure none of the intermediate levers or rocker arms have slipped out.

Tighten down nuts from inside to outside.

Tightening torque 11 31 1AZ.

IMPORTANT: Camshaft bearing caps of cylinders 1 to 4 and 5 to 8 must not be mixed up.

Camshaft
Fig. 234: Locating Nuts Of Bearing Bracket

Fit bearing cap R E1 in such a way that marking is legible from inlet side.

Install nuts and tighten down.

Tightening torque 11 31 1AZ.

Camshaft
Fig. 235: Locating Camshaft Bearing Caps Nut

Rotate inlet camshaft in direction of rotation until cam on 5th cylinder points upwards at an angle as shown in illustration.

NOTE: The marking (1) on the hexagon drive of the inlet camshaft faces upwards.

Camshaft
Fig. 236: Locating Marking On Hexagon Drive Of Inlet Camshaft Faces Upwards

Install inlet and exhaust adjustment unit on left side.

Install spark plugs on cylinder bank 5 to 8.

Install left cylinder head cover.

Install ignition coils on cylinder bank 5 to 8.

Install servomotor for left eccentric shaft.

Assemble engine.

READ NEXT:

 Removing And Installing/Replacing Right Inlet Camshaft (N62 From 9/03 And N62TU)

Special tools required: 11 9 470 11 9 472 11 9 473 11 9 474 11 9 475 11 9 480 11 9 490 (cylinder bank 1 to 4) Necessary preliminary tasks: Remove servomotor for right eccentric shaft. Rem

 Removing And Installing/Replacing Left Exhaust Camshaft (N62/N62TU)

(cylinder bank 5 to 8) Necessary preliminary tasks: Remove servomotor for left eccentric shaft. Remove ignition coils on cylinder bank 5 to 8. Remove left cylinder head cover. Remove spark plug

 Removing And Installing/Replacing Right Exhaust Camshaft (N62/N62TU)

(cylinder bank 1 to 4) Necessary preliminary tasks: Remove servomotor for right eccentric shaft. Remove ignition coils on cylinder bank 1 to 4. Remove right cylinder head cover. Remove spark plu

SEE MORE:

 Procedure After Airbag Triggering As Result Of An Accident

Check and/or replace following components after airbag triggering: Satellites (control unit + sensor) Components Satellite, A-/B-pillar, left/right Satellite, front door Satellite, rear seat Satellite, driver's/front passenger seat Satellite, vehicle center Procedure Read out faul

 Compression Testing

In order for an engine to run smoothly and efficiently, the combustion chamber must be free of leakage. An engine with low compression in one or more cylinders is inefficient and will run rough or lack in performance. Low compression may or may not cause the MIL to illuminate. Low compression ca

© 2019-2024 Copyright www.bmwx5info.com