997tt Cab Water Leak advice and Specialist recommendation

[finmac]

A pal has a low mileage 997tt Cab and has discovered a water leak in the rear, carpets are wet, also the nav etc seems to have packed in as a result.

Porsche quoting £1600 to explore for leak and fix the nav - any suggestions as to cause and for specialist to try instead. Car is in the greater London Area.

Thanks in anticipation

[IMI A]

9e, JZM, or Parr worth a shout IMO. Wouldn't bother with an OPC if thats what they are quoting

[StreetDragster]

I have just investigated and found a water leak in my 997. If you have the rear wiper the foam seal to the glass perishes and leaks onto the rear tray. See if it's wet in that area, but dry on the other side.
Dead easy fix if it is

Thanks
Matt

[DangerDoom]

StreetDragster said:

... the rear wiper the foam seal to the glass perishes...

Didn't think the cab has a rear wiper?

[jackliebling]

This is a serious design fault with the 997... My car 997.2 leaked incessantly and took several visits to opc and several thousand to fix (under warranty). I sold the car because of it. My one had drainage pipes that blocked near the rear window, it then overflows through the car to the rear carpet area and under the velcro rear seats. The car smelt damp. The opc spent hours with the cat under a shower. Car got covered in limescale!

Take it to an independent like JZM and I'm sure it will be a cheap and quick fix.

All 997 owners MUST have the drainage pipes cleaned once or twice a year....

[Glenn McMenamin]

Interesting info. Where are they located ?, how'd you get to them ?

[Pope]

Likely to be the hood drains; located behind the rear 1/4 panel trims; remove the rear speakers and pull out the deflector (note location for putting back in). The drain tray leads to a hose and grommet that blocks with debris; once blocked it overflows the tray making the interior wet.

The nav fault will likely be the MOST circuit - likely the Phone module under the driver's seat is wet and the loom corroded.

[finmac]

Pope said:

Likely to be the hood drains; located behind the rear 1/4 panel trims; remove the rear speakers and pull out the deflector (note location for putting back in). The drain tray leads to a hose and grommet that blocks with debris; once blocked it overflows the tray making the interior wet.

The nav fault will likely be the MOST circuit - likely the Phone module under the driver's seat is wet and the loom corroded.

Thanks Pope, describes the problem exactly. I think the OPC mentioned the loom being damaged. If I recall, it's fibre optic? How is this fixed and is it expensive?cheers

[StreetDragster]

DangerDoom said:

Didn't think the cab has a rear wiper?

Ah yes, my mistake, didn't see the cab part

thanks

Matt

[Pope]

finmac said:

Thanks Pope, describes the problem exactly. I think the OPC mentioned the loom being damaged. If I recall, it's fibre optic? How is this fixed and is it expensive?cheers

One of two ways; either:

a. replace the faulty parts and repair the loom as you've been quoted

or

b. code off the specific unit (if it's phone I have seen tooki bluetooth units piggybacked on as an alternative) and loop the MOST (fibre optic) waveguide to reinstate the circuit so the rest of the system can operate.

[finmac]

Pope said:

finmac said:

Thanks Pope, describes the problem exactly. I think the OPC mentioned the loom being damaged. If I recall, it's fibre optic? How is this fixed and is it expensive?cheers

One of two ways; either:

a. replace the faulty parts and repair the loom as you've been quoted

or

b. code off the specific unit (if it's phone I have seen tooki bluetooth units piggybacked on as an alternative) and loop the MOST (fibre optic) waveguide to reinstate the circuit so the rest of the system can operate.

Many thanks

[lingus75]

StreetDragster said:

I have just investigated and found a water leak in my 997. If you have the rear wiper the foam seal to the glass perishes and leaks onto the rear tray. See if it's wet in that area, but dry on the other side.
Dead easy fix if it is

Thanks
Matt

Just posted new topic about the problem you mention. I have read the grommet is threaded, and I can undo it further. However, when I try and screw it up it spins the foam on the inside of the glass so I can’t get it to seal.

You say ‘easy fix’. How do I screw the bloody thing down without the whole thing spinning?