Hello,
I wonder if anyone has the experience to help me. I have recently had new front brake disks and pads allround fitted to my 53 plate laguna 1.9dci, as the pads warped after 40k and less than 50% max wear. (Renault UK wouldn't replace them under warranty, but thats a different story...) Anyway, when I drove the car away from the dealers, the brakes just didn't seem to have the bite that they had before. I had noticed that copper slip had been applied and that of course the discs and pads would need to bed. 1500 miles later the brakes are as vauge as ever. As it happens my wife's SLK had exactly the same work done to it, and her brakes are sharper than before. Any ideas why my brakes aren't just as good?
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Warped pads? thats very unusual, sure it wasnt the disks that were warped?
Its very hard to tell with laguna brakes. The Electronic assist can make them feel quite different at times. The feel varies quite a bit. They do the business very well when you want them too tho.
Can only suggest you take it back and ask them to check it over (free of course)
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RF - I musu say that the brakes on my 51 Privilege Tourer diesel felt the same throughout the 37k miles I did on it - I found them excellent (the handbrake cable came adrift twice though, but that's another story...)
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>>I had noticed that copper slip had been applied and that of course the discs and pads would need to bed.
Pressume you took the pads out to notice copper slip..Should only be applied to back plate- sides of backplate that contact caliper/piston..if a smear has made its way onto disc may be the problem..pads dont usually take more than 100 miles to bed in..I think you mean disc warp rather than pad
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Steve
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Sorry, it was warped DISCS.... Maybe you would have to push the pedal like superman to warp the pads!
I noticed the copper slip through the wheel spokes and it looked like it was actually on the faces of the pads and had pushed out the side. I could be mistaken though... If it was on the face, would the brakes have worked at all? As for the ABS,ESP and EBA (my car has ESP), surely that only kicks un under certain conditions like hard deceleration, lateral motion etc.?
John
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It could be that the pads are made of a different compound to the ones that the car left the factory with. Maybe they are harder wearing and thus don't give you the instant bite that the old ones did. On the copper slip side of things I would think that you can see it oozing out of the sides of the caliper/back of the pads and doubt very much that the dealer/mechanic would have been stupid enough to let the copper slip go all over the face of the pads.
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First thing I would do is have the brakes bled. What *might* have happened is that a small amount of air got into the system when they pushed the pistons back into the calipers to make room for the new pads.
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As DD said. this can happen if the piston is forced back on one side only..Though may not be the case on screw type usually on rears..From what you said an excessive amount of copperslip has been used..Should only need a smear.Would go for bleeding. if that has no effect..clean up the discs using a degreaser.OR best idea. take it back to garage that did the job..either way its their fault this should not happen
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Steve
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