31 51 015 Replacing shaft seal for left output shaft

Special tools required: 

• 31 5 130

Necessary preliminary work: 

• REMOVE  left output shaft.

Lever shaft seal (1) out of front axle differential (3) with a fork wrench (2).

Fig 1: Replacing Front Axle Differential Shaft Seal Using Fork Wrench

Courtesy of BMW OF NORTH AMERICA, INC.

Install radial shaft seal: 

Fig 2: Identifying Protective Ring And Radial Shaft Seal

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Drive in shaft seal with special tool 31 5 130 up to limit position.

Fig 3: Driving Shaft Seal Using Special Tool 31 5 130

Courtesy of BMW OF NORTH AMERICA, INC.

After installation: 

• Check FRONT AXLE GEARBOX OIL LEVEL , correct if necessary.