Wet under the floor matts

[elliotw]

Hi

Wondering if someone could give me some advice on my 987 - it is wet under the floor matts behind the passenger and driver seats. I understand that, if unremedied, the water can damage the computer control unit under the seat and is therefore a serious problem.

Porsche identified a similar problem on my car about 15 mths ago. They explained that it was caused by clogging in the water drainage system. They removed all the debris clogging the drainage system and I then dried out the car myself by using a dehumidifier/leaving the windows open in a garage for a couple of days.

Now, dehumidifying the car is not the problem - and I will do this shortly - but I cannot for the life of my figure out how to de-clogg the drainage system so this problem doesn't happen again. I stumbled across the following site, https://sites.google.com/site/mikefocke2/drainsdiagram, but it's for the 986 and I can't seem to figure out how to fix the problem.

Any help please?

Many thanks

Elliot

 

[Nick_USA]

ORIGINAL: elliotw

Hi

Wondering if someone could give me some advice on my 987 - it is wet under the floor matts behind the passenger and driver seats. I understand that, if unremedied, the water can damage the computer control unit under the seat and is therefore a serious problem.

Porsche identified a similar problem on my car about 15 mths ago. They explained that it was caused by clogging in the water drainage system. They removed all the debris clogging the drainage system and I then dried out the car myself by using a dehumidifier/leaving the windows open in a garage for a couple of days.

Now, dehumidifying the car is not the problem - and I will do this shortly - but I cannot for the life of my figure out how to de-clogg the drainage system so this problem doesn't happen again. I stumbled across the following site, https://sites.google.com/site/mikefocke2/drainsdiagram, but it's for the 986 and I can't seem to figure out how to fix the problem.

Any help please?

Many thanks

Elliot

If you pop open the bonnet and remove the battery cover you will see a hole either side of the battery tray, a 'curtain wire' or something similar of about 2 feet in length can be used to poke down the hole.

 

[elliotw]

Thanks Nick.

However, I am looking to declogg the rear drainage pipes, not the front ones. Any ideas on where to find this?

 

[Nick_USA]

ORIGINAL: elliotw

Thanks Nick.

However, I am looking to declogg the rear drainage pipes, not the front ones. Any ideas on where to find this?

Open roof halfway then look under the rear of the roof to the side. Your may have to lift the rear of the soft-top to see them.

If you are familiar with putting the roof into the service position then you we see them better.

 

[BartyB]

A curtain wire (as long it has round eyes on the end) is ideal for unblocking these drains. Use a twisting action as you push it down. Once you've pushed the wire all the way through it's a good idea to follow this up with an airline to make sure all the crud is blown out all the way through.

To do this, I use a very thin plastic tube (old windscreen washer tubing) connected to an airline which is pushed down the drain until it comes out below. If you haven't got a compressor at home you can do this using an airline on a garage forecourt. It takes less than 5 minutes.

And whilst you've got the hood up at the back, you might want to check the condition of the hood tension cables (Page 271 Item #17 in PET).

 

[elliotw]

Thanks guys for your help.

It actually seems that it isn't the drainage system that is clogged, but rather, the drainage system has been incorrectly assembled! This could only have been done by Porsche when they diagnosed the problem 15mths ago or when I took the car in for a minor service in the summer.

Basically, when I put the roof in the service position I found two problems: (i) the two cords that attach the roof to the material that has the long narrow water collector at the bottom (sorry, not sure what this part is called!) do not pass through the two little holes either side of the roof material, but rather, pass on the outside and (2) the material that has the long water collector at the bottom was not clipped in to the back of the enclosure that houses the roof. Not quite sure if I have articulated the problems correctly, but I have managed to fix both of these issues.

So, what has been happening is water has not been flowing to the drainage system, but rather, dripping on to the interior carpet. Anyway, all fixed now and thanks Alan and Nick for your help.