machasm
Active Member
HI All,
I have just changed the front disks on my CLK55 AMG myself and thought that I would make a write up for others.
Please bear in mind that I am not a professional and feel free to comment where you believe I may have slipped up.
1) Loosen the wheel nuts on the front wheel before jacking. Then jack the car up and support using axel stands or other means. DO NOT rely wholly on the jack. Once the road wheel is removed you should see something like this
2) Remove the clip circled in the picture above by prising it out at the points indicated. Put to one side.
3) Now using a 7mm Allen key undo the 2 bolts securing the calipers to the carrier.
4) Prise open the old pads and then pull the whole assembly away from the disk.
5) Remove the wear sensor and old pads from caliper.
6) Ensure that the caliper is supported whilst you begin removing the disk.
7) Undo the small retaining screw that secures the disk to the hub using a 5mm allen key.
8) Using a 16mm socket remove the 2 screws that hold the caliper carrier to the hub (I am not sure of the terminology here). Note that these use a thread locking compound which will need to be renewed when fixing the new disk back in.
9) Finally remove the disk from the hub (mine just fell off but sometimes they can stick. Usually a few taps with a mallet should loosen it).
10) You should see somehting like this image
11) Before fitting the new disk to the hub observe that the disks are handed the image below is for a left handed disk.
12) I used a copper grease on the face of the hub to prevent corrosion between the disk and hub so that removal of the disk in the future might be easier. You can omit this if you want.
13) Secure the disk using the 5mm allen key screw to the hub.
14) Using a thread locking compound fit the caliper carrier.
15) Next fit the new wear sensor to the new pad (the one with the locating brackets)
16) Push the pots in the caliper as far back as required remembering to allow enough clearance to fit the new pads over the new disk.
17) Fit the pads into the caliper
18) Now fit the caliper with the pads to the new disk. (This can be quite tight please try to avoid straining the brake lines when doing this).
19) Refit the two 7mm allen key bolts back through the caliper into the carrier.
20) Fit wear sensor into receptacle.
21) Refit the retaining clip that was removed in step 2
22) Refit roadwheel and tighten wheel nuts to specified torque (110NM)
23) Repeat procedure for right wheel.
24) After fitting ensure that the new pads and disks are bedded in!
Thats it.
Mac
I have just changed the front disks on my CLK55 AMG myself and thought that I would make a write up for others.
Please bear in mind that I am not a professional and feel free to comment where you believe I may have slipped up.
1) Loosen the wheel nuts on the front wheel before jacking. Then jack the car up and support using axel stands or other means. DO NOT rely wholly on the jack. Once the road wheel is removed you should see something like this
2) Remove the clip circled in the picture above by prising it out at the points indicated. Put to one side.
3) Now using a 7mm Allen key undo the 2 bolts securing the calipers to the carrier.
4) Prise open the old pads and then pull the whole assembly away from the disk.
5) Remove the wear sensor and old pads from caliper.
6) Ensure that the caliper is supported whilst you begin removing the disk.
7) Undo the small retaining screw that secures the disk to the hub using a 5mm allen key.
8) Using a 16mm socket remove the 2 screws that hold the caliper carrier to the hub (I am not sure of the terminology here). Note that these use a thread locking compound which will need to be renewed when fixing the new disk back in.
9) Finally remove the disk from the hub (mine just fell off but sometimes they can stick. Usually a few taps with a mallet should loosen it).
10) You should see somehting like this image
11) Before fitting the new disk to the hub observe that the disks are handed the image below is for a left handed disk.
12) I used a copper grease on the face of the hub to prevent corrosion between the disk and hub so that removal of the disk in the future might be easier. You can omit this if you want.
13) Secure the disk using the 5mm allen key screw to the hub.
14) Using a thread locking compound fit the caliper carrier.
15) Next fit the new wear sensor to the new pad (the one with the locating brackets)
16) Push the pots in the caliper as far back as required remembering to allow enough clearance to fit the new pads over the new disk.
17) Fit the pads into the caliper
18) Now fit the caliper with the pads to the new disk. (This can be quite tight please try to avoid straining the brake lines when doing this).
19) Refit the two 7mm allen key bolts back through the caliper into the carrier.
20) Fit wear sensor into receptacle.
21) Refit the retaining clip that was removed in step 2
22) Refit roadwheel and tighten wheel nuts to specified torque (110NM)
23) Repeat procedure for right wheel.
24) After fitting ensure that the new pads and disks are bedded in!
Thats it.
Mac
Last edited:
:bannana: 
Similar post on ML brakes (calipers similar but single piston only??) with some more photos. 
See my comments in this thread 
