Seat Leon >> Bleeding clutch mechanism

Special tools and workshop equipment required

  • Brake filling and bleeding equipment - VAS 5234-

Clutch

Note

  • After carrying out work on the hydraulic clutch mechanism, the system must be bled.
  • When performing the following steps, make sure that no brake fluid escapes onto the gearbox.
  • Prefilling system is not necessary!
  • Before bleeding the clutch system, top up the brake fluid reservoir to the "Max." marking with brake fluid.
  • Clutch pedal is at rest position, is not being depressed.
  • Brake fluid: allocation.

 

  • Remove complete air filter housing if it prevents access to bleeder valve (-arrow- figure below) .
  • Pull clutch pedal back to rest position.
  • Remove protective cap from the bleeder valve -arrow-.
  • Connect brake filling and bleeding device .
  • Connect bleeder hose to bleeder valve and to pressure hose of fluid collector bottle.

Clutch

If necessary, use bleeder hose (670 mm long) - V.A.G 1238/B3- for bleeding.

  • Switch on brake filling and bleeding equipment .
  • Working pressure: 2.0 bar, positive pressure
  • Open bleeder valve.
  • Allow about 100 cm3 of brake fluid to flow out.
  • Close bleeder valve.
  • Rapidly operate pedal from stop to stop 10 to 15 times.
  • Open bleeder valve.
  • Allow another 50 cm3 of brake fluid to flow out.
  • Close bleeder valve.
  • Switch off brake filling and bleeding equipment and relieve pressure completely from bleeding equipment.
  • After finishing air bleeding, the clutch pedal must be activated several times.

Tightening torque:

Clutch

Checking clutch master cylinder and clutch slave cylinder

Carry out Guided fault finding using - Vehicle diagnostic tester before you renew the clutch master cylinder with an assumed fault.

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