Cayenne Water leak into passenger footwell

[Maxheadroom]

Hell All,

Yes I know its not a propoer porsche and that I am probably a cock for driving such a car.

Now thats out the way, I have a problem with water leaking into the passenger footwell. I have had an Indy check it out and have been informed that this is not an uncommon problem. The problem apperently is the drain hole getting clogged, although there is no obvious way for me to clean these drainholes. i have spoken with OPC Hatfield and they have confirmed some cases like mine. Hatfield suggested that I have the drains cleaned every 12 months, which to be honest is a bit shoddy when you consider the service intervals are two years! I have owned many cars and never have i had a problem with drainage.

I have done the usually googlizing of the subject and only found one or two incidents, I was just wondering if anybody on here had a similiar problem and how it was fixed?

The Car is a 53 plate 4.5 V8
Regards
E

[Maxheadroom]

Pope said:

The front drains clog with leaves/debris over time, nothing you can actively do to prevent the problem - they get blown into the engine bay/drain areas during driving and the problem is especially likely to occur if the car is parked for lengthy periods in leafy areas - sounds corny I know but, that's life - I have the same problem with my guttering at home...

The drains are listed as a service item - to be cleared and inspected - every two years as you rightly said, however, like using a vehicle in dusty conditions requires more frequent air filter changes than recommended, the same advice could be applied.

The drain area holds up to 15 litres of fluid per side, it's not uncommon to get a Cayenne in for service, pull back the arch liners and release the drain blockage and flood the workshop! You can clear them quite easily yourself by lifting the front of the car and peeling back the arch liner behind the suspension strut, the drain exits from the body there and the grommet just gets fouled so the drain retains water.

Not just a Cayenne issue, 9x6, 9x7 - even 924 / 944 have historically had problems just like this.

Edited by Pope on Thursday 18th Febbruary 17:25

thanks for that, I really appreciate your comprehensive reply.
Just out of interest if this occurs on a regular basis (I'm not saying mine is) could it be something else?

Reason i ask is that my carpet and foam were soaking and 7 litres of water came out on a dehumidifier. also the car still smells damp. The car is kept on my drive.

I was thinking about buying a dehumidifier for home and using it when ever possible. would this get rid of the damp smell?

[Maxheadroom]

Pope said:

There have been a few occurrences of the bulkhead panel not being adequately sealed leading to leaks (there is a TI and repair procedure on the system). The AC drain can also leak into the interior, lift the carpet under the glovebox and have a good look round at the metal work in front of the heater box, if the bulkhead panel is leaking it will be fairly easy to spot.

The carpet has very dense foam backing, it can hold an amazing amount of water and still feel dry on the top - whatever is leaking could have been so for a fairly long time but only became obvious once the carpet got saturated

Edited by Pope on Thursday 18th February 22:55

Thanks, I'll have a look this weekend. I really hope its fixed.