Has anyone noticed a slight roll-back after applying the handbrake?

On coming to a stop on a slight hill and applying the handbrake, my car rolls back very slightly after I take my foot off the brake pedal. It feels as if there is some slack in the brake pads at the back.

I took the opportunity to investigate the rear brakes while I had the wheels off to grease the hubs (to stop the alloy wheels corroding and sticking) and I found what looks like a combined drum and disc arrangement. There is the expected disc brake caliper but the handbrake cable goes to the backplate, not the caliper.

I was able to rock both rear wheels slightly and could hear a slight clunk as the brake shoes take up the slack.

This seems to me to be a very reliable set up because the more usual rear brake caliper with integrated handbrake mechanism is very prone to seizing. The only drawback I can see is from the slight increase in unsprung weight, but then there's the excellent multilink rear suspension to deal with that.

It seems strange to me that the engineers would have designed in so much slack, has anyone else noticed this with their i30 ?

Yes, in the early days it's quite disconcerting


Are you arguing with yourself :D

It does work quite well once you get used to it. Once you know that the handbrake is separate from the actual disk you can make allowances for it.

YES. and it can be frightening the first time it happens.

I posted a similar thread in
http://www.hyundai-forums.com/index.php?sh...4&hl=hand+brake

My quote
"Yes I noticed it the first day I got mine.

I was parking at work and stopped on a slight hill. Pulled up handbrake, 4 notches, took foot off brake peddle and the car moved. Had to pull up handbrake a few more notches.

Ask Dealer and they said it was to do with discs configuration on rear wheels.

On flat handbrake only moves up max of 4 notches on incline 7-8 notches.
Scarry at first but use to it now."


Also look at HOCGB site but you will have to register to look at the postings. Worth joining as you are UK based.
http://www.hyundaiownersclub.co.uk/forum/v...opic.php?id=817.

This post has been edited by eye30: Sep 15 2008, 12:27 PM

Thanks Guys,

Looks like this is normal behaviour for the handbrake then.



Yes!
I don't like the roll back but after enduring seized rear callipers on my previous car, a low mileage Golf Mk5 derived platform, I reckon the Hyundai system should be much more reliable.

This post has been edited by nlm: Sep 15 2008, 01:48 PM

Yup. It is, by my reckoning :)

OH BOY, here is another load of B**S** the dealer is dishing up.

this type of disc/drum brake at the rear is in use on most Hyundai's for many years.
the rocking back or fore when the H-brake is applied is the result of a not quite 100% correct brake shoe adjustment.
what you feel is a slight floating of the park brake shoes, which is not a big deal and can be easily corrected.

Duke (IMG:style_emoticons/default/grin.gif)

My i30 did this when it was new. The rear wheels are fitted with drum and disc brakes. The handbrake acts on the drum, whereas the footbrake uses the disc system. Rollback (or forward) happens when there is slack or mis-alignment between the drums and shoes.

The supplying dealer fixed this for me by taking up the slack on the drums. They have to remove the wheels to do this, which perhaps explains why some dealers aren't keen to fix this as it means they get their hands dirty.... The handbrake now has quite a bit less travel too. The i30 still rolls back a fraction, but its no longer noticeable.