Upgrading fronts to 266mm discs and Bosch Calipers - 01-05-2009
First off, watch what discs and calipers you buy. I got my calipers from a 52 plate 206 GTi, however I bought discs that are for a 98-00 206,
these are the wrong offset and won't fit on your 106! Make sure the discs and pads you buy are for 01> on models of 206.
I had more pictures but they seem to have gone from my phone.
Note, make sure you torque up the two caliper bolts on each side after you have them back in. Check haynes, I torqued up to 80lbft.
So without further ado....
1st thing pop bonnet and remove the master cylinder cap, stretch a polyethene bag over it and put the lid back on to make it air tight, this helps reduce the fluid leak. (I don't like using hose clamps).
Jack up the car, get it on axle stands and remove the wheel bolts. Then remove the two disc screws on the face (if they are there) while the pads have still got some bite on disc. These can be a bit of a b**ch to get out, and they're not needed so you can toss them if you chew the head: the wheel bolts and caliper secure the disc.
Squirt the union, the bleed nipple and the caliper bolts (behind the disc) with your best friend, WD40.
Now crack the brake cable union that goes onto the caliper:
Now look behind the caliper and remove the hex bolts (19mm), there is two of them on each caliper and they are torqued up pretty tight:
I'm missing a picture here but you need to seperate the pads from the discs to actually get the caliper off, I used a flat headed screw driver and wedged it off. Once it's off, simply twist it to loosen it from the union and put the hose upwards and put it in your springs to hold it there.
The disc will probably be seized against the hub, use some gentle persuasion with a mallet or hammer and it'll come off.
This'll be what you're left with:
Now we're on to the Bosch calipers, here's how they are compared to the GTi ones:
It's not just the 283mm calipers that need grinding but these too. The picture below shows what I removed. You see the bump in the circle to the right? Well that _was_ the same on the left side, it's that you need to grind off. Make sure it's the top of the caliper you grind, the bottom off the caliper lines up with the holes fine.
Now put your pads inside your caliper and you are ready to go. (make sure the caliper piston is back in it's bore as it's simpler to get your caliper and pads over the disc)
Place your disc on
This image has been resized. Click this bar to view the full image. The original image is sized 600x800.
Now just twist the caliper back onto the flexi hose and line up the holes at the back and put the bolts back in. (grease them up first
)
And here's what you should be left with:
Look at the mess I made of them
, you might have to clean your caliper up a bit if you're a messy **** like me.
Now, you will have to rotate the disc about a bit to line up with the holes, alternatively you can just put the small bolts back in that were removed earlier and this will hold it.
Now you'll have to bleed the brakes, I bled the whole system just to be on the safe side. Start from the furthest away from the master cylinder to the closest, I.E. Back right, back left, driver side, passenger side.
Wheels back on and jobs a good un.
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Last edited by Jim_; 13-05-2009 at 07:58 PM.