Flashing light on dash

arron2004

Cupra Boy
Mar 1, 2007
903
0
Nottingham J25 M1
Evening all, Every time i pull out of work there is a slight hill and as soon as i go up the hill slow or fast my (!) symbol comes up flashing and beeping! Its also happens when car is under boost. I have checked brake fluid, and my oil level is checked every month! They are both fine. I have plugged in and no fault codes seem to come up? Any ideas?