Servicing shift mechanism
Dismantling and assembling shift mechanism with Tiptronic (assembly overview)
Dismantling
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‒ Removing shift mechanism .
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‒ First detach buffer stop from cable lever.
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‒ Set the selector lever to Tiptronic and then remove the frame.
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‒ Shift selector lever into position "2".
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‒ Disengage lever for interlock cable by lifting it out of its mounting and remove from the bearing cup.
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‒ Shift selector lever into position "D".
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‒ Carefully select the detent spring for the Tiptronic setting out of the bearing cup, working from the outside.
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‒ Withdraw the locks for the selector lever bearing bushes.
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‒ Use a screwdriver to push the selector lever bearing bushes out.
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‒ Remove the complete selector lever.
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‒ Dismantling selector lever => Page 37-35.
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‒ To remove the bearing for the selector lever Tiptronic setting release the retaining lugs on the outside of the bearing cup and remove the bearing towards the inside.
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‒ Press out the pin for the locking pawl using a punch.
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‒ Lift out the selector lever lock solenoid together with the locking pawl.
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‒ Carefully lever the detent spring for the selector lever settings out of the bearing cup working from the outside.
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‒ Lever out both pivot pins of the cable lever/retainer.
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‒ Pull the cable lever/retainer out of the bearing cup with the opening of the retainer facing upwards.
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‒ Unclip the retainer from the cable lever.
Assembling
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‒ Clip the retainer into the cable lever.
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‒ Push the cable lever/retainer from above into the bearing cup with the retainer opening first.
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‒ Drive the two pivot pins of the cable lever/retainer from both sides into the bearing cup right to the limit.
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‒ Press the detent spring with roller for the selector lever setting fully into its mounting in the bearing cup.
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‒ Push the selector lever lock solenoid into the bearing cup from above together with the locking pawl.
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‒ Drive the pin for the locking pawl in carefully.
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‒ Check the engagement of the locking pawl in "P" and "N" on the selector lever mechanically using a screwdriver.
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‒ Insert the complete selector lever in the bearing cup.
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‒ Attach the selector lever at the bottom and the top in the cable lever.
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‒ Push the two bearing bushes for the selector lever into the bearing cup from the front and rear respectively.
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‒ Fit the locks for the bearing bushes in the bearing cup so their angled ends face inwards.
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‒ Press the detent spring for the Tiptronic setting fully into its mounting in the bearing cup.
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‒ Shift selector lever into position "2".
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‒ Place the locking lever in the bearing cup and engage it firmly until it is felt to lock into place in both bearings.
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‒ Check the locking function of the locking lever. When the selector lever is set to "P" it must engage in the retainer and block gear shifting.
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‒ Mount the frame on the bearing cup (with the ribs pointing upwards) and insert the buffer stop in the cable lever.
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‒ Installing shift mechanism => Page 37-6.
Dismantling and assembling the selector lever
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‒ Removing the selector lever => from Page 37-31.
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