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02 27 PDF

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Technical Service Information


VOLKSWAGEN/AUDI "01M"
NO FORWARD OR SLIPS FORWARD

COMPLAINT: Before or after overhaul, vehicles equipped with the 01M transaxle may exhibit a "no
forward" engagement or a slipping condition on take-off in first gear.

CAUSE: The cause may be, that the K1 (Forward) Piston is cracked, as shown in Figure 1, which can
cause a loss of forward clutch pressure.

CORRECTION: Replace the K1 (Forward) Piston as part of every overhaul.


SERVICE INFORMATION:
At the time of this printing, the K1 (Forward) Piston is not sold, from Volkswagen,
seperatly from the complete drum assembly. Aftermarket suppliers have available a "piston
kit" to service the K1 drum as well as all of the other bonded pistons.

FORWARD PISTON INSPECTION

CRACK IS NORMALLY
IN THIS AREA

Copyright © 2001 ATSG


Figure 1
02-27
AUTOMATIC TRANSMISSION SERVICE GROUP Page 1 of 1

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