I changed all pads recently (two weeks ago) (front and rear, orginal from fiat) and I observed that after installation car has worst acceleration and bigger consumption. The front breaks are so hot after short trips that the whole wheel is extremaly hot (not alloy).
I was in fiat service and they told that it is normal that wheels are hot during joruney.

Any advises?

Regards,
Slavomir

slavomir said:

I changed all pads recently (two weeks ago) (front and rear, orginal from fiat) and I observed that after installation car has worst acceleration and bigger consumption. The front breaks are so hot after short trips that the whole wheel is extremaly hot (not alloy).
I was in fiat service and they told that it is normal that wheels are hot during joruney.

Any advises?

Regards,
Slavomir

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If you jack up each corner, can you spin the wheel by hand? If not, then the pad is constantly rubbing on the disc. This could be normal after a pad change but I doubt it...

Greggers said:

If you jack up each corner, can you spin the wheel by hand?

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Rear wheels smoothly, front you must put much of strength to spin the wheel.

Thats not right - could be the seals in the calipers.

First thing i'd do is bleed the brakes....

That has been already done - I changed the break fluid with bleeding as I thought that it can be the reason...

Definitely not right. You have to investigate that. Is it both sides at the front are too hot? Was the disc badly worn?

Your tyre might even blow out if it's that hot

Wheel has got to rotate freely when brakes are off

slavomir said:

Rear wheels smoothly, front you must put much of strength to spin the wheel.

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If this was done by the garage then take it straight back and complain.

It does take a few miles for new pads to 'run free' but no way should you feel it whilst driving - as Decks says - something is very wrong.

Whole story :
First it was change by the garage (front and rear) and after few days when I had observed the stilo behaviour (lack of power, bigger consumption, lower max speed) I decided to go to the fiat service to investigate and change break fluid.
They dismounted front pads then and they discovered that on the left wheel previous genious installed two outsided pads and on the rigth whell two inside pads (outside has a pin and inside has a hole). They fixed it then I spin the whell it still round very hard. They told me that they were inproperly mounted so they need 30km to become 'compliance'.
What they tried to told me then is that front whell always are hot from engine and I can worry when there is difference in temperature between wheels but I don't believe them.
What more I bought orginal fiat pads to ommit potential problems

Slavomir

Something is horribly wrong if the wheels don't turn freely.
The wrong pads may have been fitted. It would have to be an idiot mechanic who didn't notice something was wrong in fitting them though

But as that's already happened to you once then who knows what mistakes may happen next?

Brake discs overheating and warping is expensive

slavomir said:

What they tried to told me then is that front whell always are hot from engine and I can worry when there is difference in temperature between wheels but I don't believe them.

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That's rubbish, discs only get hot due to friction and if you can come to a stop without using the brakes for quite some time then they should feel only very slightly warm to the touch (wet your finger first and be careful not to burn them )

Jack up the car and you should be able to spin the front wheels fairly easy. They may not spin like an upturned bicycle wheel and may come to a stop after a revolution or two but they certainly shouldn't be difficult to turn.

Carefully touching the disc after a run, as above, is a very good test of well settled in pads but it can take quite a few miles for new pads to bed in properly.

guides not cleaned correctly meaning pads are not disengaging from the disk? Blockage/collapse of flexible hoses preventing fluid from releasing brake?

Weird isn't it. Cant think of much else that would cause the front pads to stay on.

Is the brake fluid level at the right level i.e not over the maximum? If they've pushed the caliper pistons back to accept the new pads but not syphoned off the excess fluid then that might cause problems.

Argonought said:

they should feel only very slightly warm to the touch

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disc or wheels?

Deckchair5 said:

If they've pushed the caliper pistons back to accept the new pads but not syphoned off the excess fluid then that might cause problems.

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What do you mean?
First time (when they installed pads wrongly) fluid escaped when they pushed rear caliper pistnos back by the special tool.
Later whole fluid was change for new tutela and the system was unbleed.

slavomir said:

disc or wheels?

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The steel disc (careful as this can get red hot if brakes are seized )

Originally Posted by Deckchair5
If they've pushed the caliper pistons back to accept the new pads but not syphoned off the excess fluid then that might cause problems.
What do you mean?

All that means is

Is the brake fluid level at the correct level i.e not over the maximum?

I will check tomorrow morning and let you know.

Slavomir