How hard is it to change brake discs and pads on my car?
Not very hard at all, if you have done pads before then getting the discs off is not a problem you might need a torx bit to undo the small grub screw holding the disc to the hub take them off and get the new ones and clean them with brake cleaner as they have a thin film of grease on to prevent rusting.
Your question was about discs and pads – not just pads. I’ve not done this on a Merc, but have on the front of a vectra. It is an easy job – if you have the right tools handy and if you have axle stands. I had to buy a special size and shape allen key for not much. Axle stands are not expensive – about 20 mins of a mechanics time! Note – front discs are easy, rear are probably not. Rear disks usually incorporate the hand brake which complicates things enormously. Get yourself a Haynes manual, read the front disk procedure and do it if you feel confident. You can always do the fronts yourself and get a garage to do the rear. This way you’ll learn something and still save a shed load of money. You’ll save on both labour (DIY) and parts – pattern disks are fine, mine have done about 40k miles.
