I too have the water ingress via the brake servo, water then coming in at the pedal area into driver footwell.
Much advice as to sorting the problem, servo removed, new sealant etc.
However, can anyone advise as to where the water access is that leads it to the servo seal? Via the bottom of the windscreen? Via the vent spaces showing under the rear of the bonnet lid. The rain must get in somewhere then channels to the servo area. I feel the water must somehow fall directly onto the servo, but from where? Anyone please?

Peter G., March 2018

Well, by now you'll have probably worked how to use a well known search engine for yourself and found results like this, which is is one of the first results I got when I searched for "vauxhall corsa 2005 water in footwell":

http://forums.moneysavingexpert.com/showthread.php?t=4285741

Plenty more results out there

Fghjyr, March 2018

Sorry....my car, the car in question, is a Vauxhaul Corsa 2005 1.2 manual, model Breeze.

PeterG G., March 2018

No-one can tell you anything until you decide to give the make and model of your car

Not a psychic, March 2018