My Corsa is a 60 plate petrol 5 door. I got a letter from vauxhall l.warranty team saying to make sure cambelt + brake fluid changed regularly. How often should the cambelt be changed? It's done around 75k miles. I've had the brake discs and pads changed together twice + pads only twice, since I've had the car. All works done by dealerships - surely they'd change the brake fluid when doing those works? It's just that when I checked the invoice from 2020 (when discs and pads recently replaced), it doesn't mention brake fluid but mentions things like cleaning fluid, motor oil.