Cabriolet drains

[dammad]

I checked my '09 Cabs's drains at the end of summer and they appeared to drain fine down behind the wheels with good flow. However, now the rain is here, I'm getting water in the driver's side rear footwell (below the carpet) causing the alarm/electrics to go off. I've moped up the water and I checked the drains again between the rains but they still seem to drain well. I've checked the slot style drains from around the end of the top as well as the main drain towards the center of the car in a drainage dip. 

 

Does anyone have any idea on where the water may be coming in from or perhaps other drains I've missed?

Edited October 30, 2016 by dammad

[Hilux2400]

Have you looked at the front bulkhead drains on either side of the battery?  You need to take off the plastic covers and there are two drains on each side.   

[dammad]

A quick addition to this thread. I noticed today that the 997.2 has two drains (per side) for the cabriolet roof. One dumps out at the front of the rear wheel, but the 2nd dumps out at the rear of the rear wheel. It exits at the point where the rear part of the rear wheel well cover finishes at the top. Make sure you give that one a clear too. I found I could reach it in the gap at the end of the wheel well cover. Pouring in some water around the top and then squeezing the outlet cleaned it out nicely.

[Alan111]

On March 26, 2017 at 9:18 PM, dammad said:

A quick addition to this thread. I noticed today that the 997.2 has two drains (per side) for the cabriolet roof. One dumps out at the front of the rear wheel, but the 2nd dumps out at the rear of the rear wheel. It exits at the point where the rear part of the rear wheel well cover finishes at the top. Make sure you give that one a clear too. I found I could reach it in the gap at the end of the wheel well cover. Pouring in some water around the top and then squeezing the outlet cleaned it out nicely.

Can you clarify on the 2nd drain? How can I clear it out?

 

[Loren]

Water drainage diagram

 

The water drains -1-and -2- can be found on both sides of the vehicle (only vehicles with sliding roof).

 

1 - Water drain: rear of sliding roof
2 - Water drain: front of sliding roof
3 - Water drain: tank tray
4 - Water drain: plenum panel 5 - Water drain: plenum panel (vehicles without luggage compartment ventilation)

[dammad]

Alan111,

 

Let me take a picture of my car and illustrate the drains this morning. Essentially there are 4 'outlets' from the top area each with a different drain. To clean out, remove any reachable debris from the area the top folds into, then flush with water and then work the outlets in the wheel well to remove 'crud' as well as work the rubber.

 

Loren: Do you have a diagram on the cabriolet drains on the 997.2, that pic is for the sunroof version.

 

Dammad.

[Loren]

There is not one in the service manual. If you read the note the diagram is the same except for drains 1 and 2.

[dammad]

Loren: Interesting. Didn't realize there wasn't a separate cab drain diagram.

 

Based on my memory and pictures, this is how the drains are on my 997.2.

 

- Picture #1 shows where the drains appear to go. Drain 2 has a capture tank that often seems to cause the overflows into the rear carpets

- Picture #2 shows them imposed on my car.

- Picture #3 shows the drain that goes to Drain #1

- Picture #4 shows the drain area that goes to Drain #2.

 

Clean both areas (Drain #1 and #2) as well as both outlets in the wheel well. Of course, it is the same on both sides. 

 

Hope this helps prevent a few floods for fellow cab owners. 

 

Dammad.

 

 

[NJshoreC2S.2]

Clogs drains in the front of my 997.2 caused water to enter on the passenger side and damaged the amp under the front seat.

That was 2 years ago. Thanks for the reminder to check those things asap.

 

Edited August 12, 2018 by NJshoreC2S.2