MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: NorthWest on April 07, 2022, 07:09:44 pm

Title: Brake issues
Post by: NorthWest on April 07, 2022, 07:09:44 pm
So replaced both side front pads and discs . Drivers side disc getting very hot . Replaced the caliper with brand new one as guessed that was the issue as torn booth on it .

-just after a spin with new caliper and bleed done and it’s still getting very hot compared to the passenger side ? I am completely lost now ?
Any ideas ? Maybe it’s just the new pads ?
Title: Re: Brake issues
Post by: DBXdarkangel on April 07, 2022, 07:42:32 pm
Was it a genuine Branded caliper of some ebay jobby that was spray painted not powder coated?
Title: Re: Brake issues
Post by: NorthWest on April 07, 2022, 07:52:56 pm
No genuine caliper mate brand new
Title: Re: Brake issues
Post by: FatWelshBoy on April 07, 2022, 08:36:13 pm
Brake hose in good condition?
Title: Re: Brake issues
Post by: NorthWest on April 07, 2022, 08:48:26 pm
yep all looks good man. not sure what else to trouble shoot from here ?

Title: Re: Brake issues
Post by: ald1717 on April 07, 2022, 09:50:19 pm
is it braking straight or does it pull to one side?
Title: Re: Brake issues
Post by: G-olf on April 07, 2022, 10:20:14 pm
Assuming everything with caliper is ok, wheel bearing??
Title: Re: Brake issues
Post by: NorthWest on April 07, 2022, 11:03:30 pm
No noise with wheel bearing anyways . I’ll pull caliper back off tomorrow and re check …all I can think of doing now is putting old pads back on (still loads of life) and see if the binding stops
Title: Re: Brake issues
Post by: Flyingscotsman on April 08, 2022, 07:53:01 am
It is likely to be the slider pins/bolts that are seized.  Try to clean and lubricate the old ones, or buy new ones.

Not reccomending particular aftermarket parts but just for illustration:
https://www.ebay.co.uk/itm/261942591008
Title: Re: Brake issues
Post by: NorthWest on April 08, 2022, 08:20:37 am
They are brand new and greased mate . Came with the new caliper
Title: Re: Brake issues
Post by: Flyingscotsman on April 08, 2022, 08:42:40 am
OK that's something eliminated.  Do they still bind with the old pads in?
Some of the VW pads come in different thickness (I think 12mm vs 15mm).  I found this out as the bigger ones wouldn't fit, however possible that they 'just' fit but bind.
Title: Re: Brake issues
Post by: NorthWest on April 16, 2022, 03:46:56 pm
so new brake line and still no good still getting hot

drivers side disc heating up to 40 degrees plus
passenger side staying at 18/20 degrees...

no fault codes on scan... what to do next? local mechanic looked at it couldn't find anything wrong?
Title: Re: Brake issues
Post by: LC5F on April 17, 2022, 12:50:03 am
Did you properly wire brush and clean the hub face before putting the new disc in place?
Could be rust pushing the disc out of alignment.