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993 Tiptronic gearbox rebuild?

SpawnyWhippet

By SpawnyWhippet
in 993, 993 TT Series

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SpawnyWhippet Member

SpawnyWhippet

Posted
Posted

My 1996 993 Tiptronicl suffers from the problem of not locking the wheels when left in Park. The handbrake is also not very strong even though my local dealer just adjusted it.

The problem exhibits itself by rolling downhill when left in Park on a slight slope, with a series of clicks from the gearbox. Is this a major gearbox rebuild/replace job, or is there a DIY option?

Are these gearboxes built by Porsche, or from a 3rd party gearbox manudacturer as I'm looking to keep costs as low as possible. Are there any recommended gearbox people in Sydney, Australia?

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  • 2 months later...
SpawnyWhippet Member

SpawnyWhippet

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  • Author
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1/ it's not a DIY

2/ Tiptronic manufacturer: Z.F. Germany

3/ probably yes, look for transmission specialist with Z.F. connections

I took the car to a Porsche specialist after getting a HUGE repair quote from my Porsche main dealer (approx 50% of the value of the car). Essentially they were going to charge for taking the engine out and fitting a new gearbox, which also meant having the car off the road for several weeks.

The specialist fixed the problem and a few minor things in 1 hour and then also checked over the whole car for a total cost of $200 AUD! :D

The problem was simply a cable from the gear lever back to the gearbox was incorrectly aligned! It now locks the wheels in park.

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  • 4 weeks later...
mrg Member

mrg

Posted
Posted

Rolling when in park indicates the parking pawl is not fully engaging. If the tranny shifts okay and otherwise seems to operate okay, I suggest this is a simple ajustment of the mechanism that engages the pawl when you put the tranny into park. Best done by an independent Porsche shop.

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SpawnyWhippet Member

SpawnyWhippet

Posted
  • Author
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Rolling when in park indicates the parking pawl is not fully engaging. If the tranny shifts okay and otherwise seems to operate okay, I suggest this is a simple ajustment of the mechanism that engages the pawl when you put the tranny into park. Best done by an independent Porsche shop.

Thank you. This is exactly the information I needed. My local specialist already found the fault and it was as you described. Hope someone else out there benefits from this info and doesn't go to their Porsche dealer for a financial raping.

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