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Front Brake Pads Change....

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Old Jan 27, 2015 | 12:33 PM
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Default Front Brake Pads Change....

I installed new front brake pads on my 2005 S-Type 3.0 this past weekend and simply wanted to remind our new owners/members how easy this job is. After jacking up the front end and pulling the wheels, you simply unclip the ABS sensor harness from the brake lines to allow some slack, remove the lower caliper bolt (12mm hex), then rotate the caliper assembly upwards using the upper caliper bolt as a pivot. The old pads will then be staring you in the face. Slide them out, use a C-clamp to retract the twin pistons, install the new pads with their appropriate end clips, and put everything back together in reverse order. Pump up the brake pedal until it is firm again, then take the car out for a spin to properly seat the new pads. Each side is literally a five-minute job once you have the front end up in the air and the wheels off....

I went with another set of Wagner ThermoQuiet semi-metallic pads ordered from rockauto.com for about $33 plus shipping. I got just under 56,000 miles out of my first set of these replacement pads and I was very happy with their stopping power and tomb-like silence. I have ThermoQuiet pads on all three of our vehicles now....

All in all a very easy job, even for someone who has never done a brake pads job before....
 
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Old Jan 27, 2015 | 01:21 PM
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What's the overall mileage and the thickness of the front discs now?
 
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Old Jan 28, 2015 | 07:22 AM
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The factory front rotors are pushing 87,000 miles. Haven't measured their thickness, but they do have a bit of life left in them....
 
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Old Jan 28, 2015 | 08:41 AM
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Not saying otherwise - but if not measured how do you know?
 
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Old Jan 28, 2015 | 09:04 AM
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I've been changing brake pads since the late 1970s. I can tell when a rotor is about to give up the ghost....
 
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Old Jan 28, 2015 | 09:08 AM
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They look fine at the discard thickness so without measuring I wonder how you know. I'm struggling to see how anyone could!
 
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Old Jan 28, 2015 | 09:34 AM
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Experience and audible grating sounds when the rotors are done (assuming the pads are still in good shape)....
 
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Old Jan 28, 2015 | 09:37 AM
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It's also a good idea at each pad change to remove, inspect and lubricate the two pins that the caliper slides on. A seized pin will cause braking efficiency to drop tremendously and accelerate pad wear.

Takes five minutes.
 
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Old Jan 28, 2015 | 09:39 AM
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Originally Posted by Jon89
Experience and audible grating sounds when the rotors are done (assuming the pads are still in good shape)....
Have to disagree here. Using sounds or visual cues will not reveal a rotor that is worn below it's minimum thickness
 
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Old Jan 28, 2015 | 11:08 AM
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Originally Posted by Jon89
Experience and audible grating sounds when the rotors are done (assuming the pads are still in good shape)....
You're way below min thickness by then!!
 
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Old Jan 28, 2015 | 11:11 AM
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Disagree all you want. I've never missed a worn-out rotor and I've been driving since 1969....
 
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Old Jan 28, 2015 | 12:57 PM
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Your definition of worn out sounds to be rather thinner than the min spec.
 
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Old Jan 29, 2015 | 07:15 AM
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I think this rotor is a touch under minimum spec! But by the looks it must have been doing its job when the picture was taken.
 
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Old Jan 29, 2015 | 07:59 AM
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OMG, that's scary!!
 
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Old Jan 29, 2015 | 08:17 AM
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Now that's what I call getting your money's worth out of a part....
 
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Old Jan 29, 2015 | 10:18 AM
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GREAT Reminder.... while im pretty mechanically inclined its truly a job that a novice could easily learn to do, and the tool requirement is minimal... a floor jack from Napa is pretty handy to have and will save quite a bit of time... i did my rears this last spring... pads rotors the whole thing for $260 im pretty sure a shop would be up around $1000. on a side note... the pistons on my calipers screw back in and not push back in like on my 70 mustang when i was a kid....My buddy had a nice little set for doing just that....


 
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Old Jan 29, 2015 | 12:38 PM
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Only the rears screw into the caliper I believe. Fronts push in correct? Just to clarify for any newbs that come across this thread.
 
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Old Jan 29, 2015 | 01:08 PM
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Yes, except with Brembos where both just push in.
 
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Old Jan 29, 2015 | 02:02 PM
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Originally Posted by Jon89
The factory front rotors are pushing 87,000 miles. Haven't measured their thickness, but they do have a bit of life left in them....
+1 on judging by experience.

Only got my micrometer last year.
 
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Old Jan 30, 2015 | 09:11 AM
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Originally Posted by Jon89
I installed new front brake pads on my 2005 S-Type 3.0 this past weekend and simply wanted to remind our new owners/members how easy this job is. After jacking up the front end and pulling the wheels, you simply unclip the ABS sensor harness from the brake lines to allow some slack, remove the lower caliper bolt (12mm hex), then rotate the caliper assembly upwards using the upper caliper bolt as a pivot. The old pads will then be staring you in the face. Slide them out, use a C-clamp to retract the twin pistons, install the new pads with their appropriate end clips, and put everything back together in reverse order. Pump up the brake pedal until it is firm again, then take the car out for a spin to properly seat the new pads. Each side is literally a five-minute job once you have the front end up in the air and the wheels off....

I went with another set of Wagner ThermoQuiet semi-metallic pads ordered from rockauto.com for about $33 plus shipping. I got just under 56,000 miles out of my first set of these replacement pads and I was very happy with their stopping power and tomb-like silence. I have ThermoQuiet pads on all three of our vehicles now....

All in all a very easy job, even for someone who has never done a brake pads job before....
Hi Jon,

I think you need to add a recommendation to replace the Jaguar supplied lugnuts with better quality ones that won't strip (assuming you were able to get them off to begin with). Other than that, good write-up.
 
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