I have a Corsa C Club 1.0, and in the recent wet weather I've noticed that the footwell of the driver's side rear seat has become totally soaked. I have googled around and it could be one of several things:
Improperly fitted windscreen (I had mine changed a month ago, might be that, I hope it's that)
Eroded seal round the brake servo.
A missing rubber gromit from various lines/pipes running the length of the car
Blocked pollen filter
Failed heater Matrix
I know basically nothing about cars. So what's the cheapest way I can get the problem diagnosed? I don't want to take it to some random garage where the guy is gonna charge 50 quid per half hour and cheekily take 8 hours to find the fault. I've read on the Halfords website that they do diagnostics for free but that seems more based around problems with the engine.
I'm pretty sure this is gonna cost me an arm and maybe 2 legs. I just need some advice on the best way to go about this.
I can pull up the carpet and soak it all up with some towels, so getting rid of the water isn't too much of a problem. Also, I had a friend sit in the back of the car whilst I poured several gallons of water all round the seals, and no water came in at all. So it's not as simple as that unfortunately .. seems to be something underneath or whatever.
Just need to know what's the best way to actually get it diagnosed, given that it could be one of several things.
You are halfway there already.
Identify a possible route of entry.
Target with a hose pipe.
Check for ingress.
Move to next suspect.
Target must be specfic as liberally spraying water will only confuse