Vauxhall Vectra water in passengers footwell

CHECK A/C DRAIN IS CONNECTED CORRECTLY .IT IS A RUBBER HOSE ON THE BOTTOM OF THE HEATER UNIT AND GOES TO OUTSIDE UNDER CAR

thankyou will go and check that now hopefully that could be it many thanks

Usual causes of water leak to n/s/f on that car are choked bulkhead drains or possibly heater matrix , though coolant level should drop if matrix . This , from another site explains faults ,


lift the bonnet and look at the bottom of each hinge if it looks like its full of leaves remove them,also lift the pollen filter access panel and check the middle drain tube (about 3 inches in from the right of the pollen filter housing if it looks like it could be blocked then try and open the end of the tube where it comes out into the engine bay)

on the passenger side if you lift the plastic scuttle cover you'll find a larg rectangular rubber cover/grommet this is the ecu access cover and it has been known to leak round the edges,

then you could look at the large rubber grommet/tube that goes from the A post to the front door

keep an eye on the engine coolant level if its getting low then have a good look under the dash round the botom of the heater housing for signs of water marks on the lower seem


P.S
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