405 water leak into saloon boot

David Humphrey · Unread post by **David Humphrey** » 24 Dec 2004, 19:05

The underfelt on the offside of the car is saturated.Does anyone have any ideas as to how this is happenning.
Merry Christmas everyone
David

PowerLee · Unread post by **PowerLee** » 24 Dec 2004, 19:06

Hi
Check the rubber seal around the rear light assy mate.

Dave Bamber · Unread post by **Dave Bamber** » 24 Dec 2004, 20:12

David.
Don't know if this will help, but the 205 has a problem with the bumper bolts letting water in and soaking the rear seat. I don't know if they are the same but it may be worth a look.

turbolag · Unread post by **turbolag** » 26 Dec 2004, 02:30

On my old 405 it was the seals on the lights. Fit new seals. Do not use silicone sealant as this produces water as it cures, which then remains trapped in the join and creates merry hell corrosion wise.

David Humphrey · Unread post by **David Humphrey** » 26 Dec 2004, 04:07

Thanks everyone.Must admitI was thinking about silicone mastic around the top of the light to fill the gap !

PowerLee · Unread post by **PowerLee** » 26 Dec 2004, 17:07

Corrision isnt a problem on 405s as there where galvinised.
The only time you will get rust is when the protective coating is damaged or accident damage to the body is repaired poorly.

beezer · Unread post by **beezer** » 26 Dec 2004, 18:21

Were 205s galvanised too? I have often wondered how they escape rust so well. A scrappie once told me the seams were so tightly welded it kept rust at bay.

PowerLee · Unread post by **PowerLee** » 26 Dec 2004, 19:03

No ideas if 205s where galvanised mate, Sorry

turbolag · Unread post by **turbolag** » 26 Dec 2004, 21:48

They were actually <i>galvanealed</i>, which means the sheet metal stock the panels were pressed from was manufactured with a thin zinc coating (microns thick). Hence areas such as the edge of panels etc where they were pressed from the sheet are theoretically more vulnerable, such as panel edges around the light apetures etc.

PowerLee · Unread post by **PowerLee** » 26 Dec 2004, 22:07

No the process Peugeot used at the time isnt that one.
The whole 405 body shell when assembled was first cleaned in an acid bath & then after some water rinses was dipped in a tank of molton Zinc & an electrical current is used to stick the thin layer of Zinc to the body shell.
Now its cheaper to buy rolls of steel already galvenised & punch the shapes out of that.

David Humphrey · Unread post by **David Humphrey** » 31 Dec 2004, 19:07

Finally got round to looking at this.Don't think water is going in around lamp cluster. There seems to be a concealed water channell in the rubber rear window surround down the edge.Cleaned this out and failed to produce leak when I tried it.

PowerLee · Unread post by **PowerLee** » 01 Jan 2005, 21:22

Hi
Do you have a boot spoiler fitted?
Water can get in through the 4 holes under the spoiler if the sealent shrinks.