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Home >> BMW >> 2013 >> Z4 28i, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 32 (Double Clutch Gearbox - Repair) >> 60 Control Unit, Mechatronics, Hydraulics >> 28 60 030 Removing and installing/replacing the hydraulic cap (GS7D36SG)

28 60 030 Removing and installing/replacing the hydraulic cap (GS7D36SG)

WARNING: This page is about a different variant/trim than selected.
IMPORTANT: It is essential to adhere to conditions of absolute cleanliness.
Any dirty parts must be cleaned before the hydraulic cap is loosened.
After completion of work, check oil level ..
Use only the DCTF-1 Pentosin (P/N 83 22 2 147 477).
Failure to comply with this instruction will result in serious damage to the twin-clutch gearbox.
IMPORTANT: Read and comply with notes on ESD PROTECTION (ELECTRO STATIC DISCHARGE) .

Necessary preliminary work 

Place twin clutch transmission on a suitable surface.

To prevent the transmission oil from spilling out, make sure that the hydraulic cap points upward.

Release screws.

Remove hydraulic cover (1).

Installation note: 

Replace seal.

Replace screws.

Fig 1: Identifying Hydraulic Cover
G06905059Courtesy of BMW OF NORTH AMERICA, INC.

Installation of hydraulic cap:

Make sure seal is exactly seated.

It is mandatory to comply with the specified order of screw connections 1-12.

Tightening torque, see 28 60 1AZ in 28 60 CONTROL UNIT, MECHATRONICS, HYDRAULICS .

Fig 2: Hydraulic Cover Bolts Tightening/Loosening Sequence (GS7D36SG)
G06905100Courtesy of BMW OF NORTH AMERICA, INC.