Volkswagen Workshop Service and Repair Manuals

Replacement ATF pump parts and the ATF pump are allocated according to gearbox code.

• Piston ring
• ◆ Check that it is correctly located
  =>Fig. 1
• ◆ Fitting => Fig. 2
• Piston ring
• ◆ Check that it is correctly located
  =>Fig. 1
• ◆ Fitting => Fig. 2
• Piston ring
• ◆ Check that it is correctly located
  =>Fig. 1
• ◆ Fitting => Fig. 2
• Thrust washer
• Piston
• ◆ Sealing lips are vulcanised to the piston
• ◆ Moisten sealing lips with ATF before inserting
• ◆ Turn piston slightly when installing

• Bolt, 10 Nm
• ◆ Then turn 45° further
• Stator support
• Outer gear
• ◆ Manufacturer's marking (arrow) faces stator support
• ◆ If outer gear is incorrectly installed, the ATF pump may not operate freely in the installed position
• Inner gear
• ◆ Larger groove faces stator support
• Housing for ATF pump
• O-ring
• ◆ Always replace
• Torque converter oil seal
• ◆ Removing and installing
  =>Page 32-6

→ Fig.1     Checking that the piston rings are correctly located

• ‒ Ensure that the ends of the piston rings are hooked together.

→ Fig.2     Fitting and hooking ends of piston ring together

• ‒ Place piston ring in groove.
• ‒ To hook ends together press sides of ring in and guide ends over one another.
• ‒ Do not twist piston ring out of groove on one side.