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Polo Mk4

Complaints related to the selection mechanism
Complaints related to the selection mechanism
Before carrying out any repairs on the selection mechanism, it is always necessary to check the customer's complaint and trace the problem cause. While doing this, check whether the complaint cause may in fact be traced to the selection mechanism or to its adjustment. It may be necessary to check whether the complaint cause lies in the clutch and in the clutch drive → Chapter.
Repair actions listed in this troubleshooting programme must be carried out as described in the relevant repair manuals.
   
ComplaintsFault descriptionCorrective action
There are noises when a forward or reverse gear is selected; the selection mechanism gets stuck; it is not possible to select a gear; the clutch is not working
t  Selection mechanism adjustment.
–  Checking and correcting.
 
t  The selection mechanism is not lubricated or is misaligned.
–  Grease the selection mechanism and replace defective parts.
 
t  Defect in the crankshaft needle bearing (if fitted). The input shaft is lifted by the crankshaft whenever the clutch is depressed.
–  Replace the needle bearing and lubricate with MoS2 grease.
–  Check the centralisation pins, and replace as necessary.
–  Check the input shaft.
 
t  Defect in the transmission synchronization and/or selection mechanism.
–  Carry out repairs to the transmission.

   
ComplaintsFault descriptionCorrective action
Thumping “noise” when the clutch pedal is in rest position.
t  Idle Speed / primary shaft have sudden vibrations. The cogs rattle. The clutch disc absorber spring is broken.
–  Explain the situation to the customer.
–  Replace the clutch disc.

07.10
   

Heating, ventilation, air conditioning > < Checking the clutch drive