Contents Wiring diagrams Section: Transfer Case All sections

Transfer Case - Overhaul BMW X5 E53

Transfer Case 20 illustrations ~692 words

RADIAL SHAFT SEAL FOR DRIVE FLANGE (500 X-DRIVE)

Note. Numbers in text refer to numbers in figures.

Remove transfer case. See TRANSFER CASE - REMOVAL & INSTALLATION article.

Drive a hole into radial shaft seal (2) using a center punch (1). (Scheme 31) Do not use a drill as drillings may result in transmission malfunction.

Scheme 31

Scheme 31: RADIAL SHAFT SEAL FOR DRIVE FLANGE (500 X-DRIVE)

Screw in special tool (23 0 490). Drive out radial shaft seal (1) with impact weight (2). (Scheme 32)

Scheme 32

Scheme 32

Drive in radial shaft seal with special tool (27 1 390). (Scheme 33)

Scheme 33

Scheme 33

Add final details to vehicle. Check oil level. Check transmission for leaks.

RADIAL SHAFT SEAL FOR DRIVE FLANGE (NV125/LWX-500)

Note. Numbers in text refer to numbers in figures.

Remove transfer case. See TRANSFER CASE - REMOVAL & INSTALLATION article.

On NV125 transmission, remove shaft (1) (adapter) in direction of arrow. (Scheme 34)

Scheme 34

Scheme 34: RADIAL SHAFT SEAL FOR DRIVE FLANGE (NV125/LWX-500)

Drive a hole into radial shaft seal (2) using a center punch (1). (Scheme 35) Do not use a drill as drillings may result in transmission malfunction.

Scheme 35

Scheme 35

Install special tool (23 0 490). Drive out radial shaft seal (1) with impact weight (2). (Scheme 36)

Scheme 36

Scheme 36

On NV25 transmission, drive in radial shaft seal with special tools (27 1 360) and (00 5 500). (Scheme 37)

Scheme 37

Scheme 37

On LWX-500 transmission, drive in radial shaft seal with special tool (27 1 370). (Scheme 38) Add final details to vehicle. Check oil level. Check transmission for leaks.

Scheme 38

Scheme 38

27 21 020 RADIAL SHAFT SEAL FOR OUTPUT FLANGE (500 X-DRIVE)

Note. Numbers in text refer to numbers in figures.

Remove propeller shaft from transmission. Release centre bearing. Tie propeller shaft to one side. See 26 11 000 REMOVING AND INSTALLING COMPLETE PROPELLER SHAFT .

Release retaining ring (1). (Scheme 39)

Scheme 39

Scheme 39: 27 21 020 RADIAL SHAFT SEAL FOR OUTPUT FLANGE (500 X-DRIVE)

Remove drive flange with special tool (33 1 150). (Scheme 40)

Scheme 40

Scheme 40

NOTE: During installation, replace "O" ring (1) in output flange. Check that "O" ring (1) is in correct position. (Scheme 41) Note that propeller shaft may move when the output flange is pushed on. The retaining ring can therefore no longer be fitted.

Scheme 41

Scheme 41

To install version with mounting groove on output shaft (1), push on output flange. (Scheme 42)

Scheme 42

Scheme 42

Using 2 screwdrivers, press output flange downward or output shaft (2) upwards until groove for retaining is completely visible. Fit retaining ring.

To install version without mounting groove on output shaft, support transfer box with a suitable sleeve (1) on transmission input shaft (2). (Scheme 43)

Scheme 43

Scheme 43

Push on output flange. Fit retaining ring. Drive a hole into radial shaft seal (2) using a center punch (1). (Scheme 44) Do not use a drill as drillings may result in transmission malfunction.

Scheme 44

Scheme 44

Screw in special tool (23 0 490). Drive out radial shaft seal (1) with impact weight (2). (Scheme 45)

Scheme 45

Scheme 45

Drive in radial shaft seal with special tool (27 1 400). (Scheme 46)

Scheme 46

Scheme 46

Add final details to vehicle. Check oil level. Check transmission for leaks.

RADIAL SHAFT SEAL FOR OUTPUT FLANGE (NV125/LWX-500)

Note. Numbers in text refer to numbers in figures.

Remove exhaust system. See EXHAUST SYSTEM . Detach propeller shaft at transfer case. SeeDRIVE SHAFTS & UNIVERSAL JOINTS article.

Secure output flange with special tool (23 0 020). Release nut (1) with special tool (23 2 320). During installation, replace nut (1). (Scheme 47)

Scheme 47

Scheme 47: RADIAL SHAFT SEAL FOR OUTPUT FLANGE (NV125/LWX-500)

Secure nut (1) at points (2). Remove drive flange with special tool (33 1 150). see scheme 18

Drive a hole into radial shaft seal (2) using a center punch (1). (Scheme 48)

Scheme 48

Scheme 48

Do not use a drill as drillings may result in transmission malfunction. Install special tool (23 0 490). Drive out radial shaft seal (1) with impact weight (2). (Scheme 49)

Scheme 49

Scheme 49

Drive in radial shaft seal with special tool (27 1 380). (Scheme 50) During installation, radial shaft seal must rest flush on housing. Add final details to vehicle. Check oil level. Check transmission for leaks.

Scheme 50

Scheme 50

TORQUE SPECIFICATIONS

ApplicationFt. Lbs. (N.m)
Drain Plug24 (33)
Servomotor To Transfer Box16 (22)
Transfer Box To Transmission32 (43)
Transmission Crossmember To Rubber Mounts55 (74)
Transmission Crossmember To Body30 (41)
Vibration Damper To Transfer Box17 (23)
INCH Lbs. (N.m)
Resistor To Transfer Case17-44 (2-5)

TORQUE SPECIFICATIONS