Tyres & Brakes

Peerzy

Peerzy

Peerzy

Soldato
Joined
9 Nov 2008
Posts
7,148
Car is a Fiat Bravo MY07 1.4 Tjet

Tyres
Front two tyres are nearly down to the limit and rear passenger side tyre has a 'tear' and an entire chunk ( :eek: ) missing from it, so I guess that means 4 new tyres for me.

Bearing in mind I will be selling the car in July/August (Doesn't mean I want cheap, crud tyres just don't want to overspend) and with a size of 225/45/R17 what would the best ones to get be?

Will need someone to fit and balance them so include that in cost.

Brakes
When slowing down from say 60mph gently I get a rather strong 'judder' (shaking) through the steering wheel, as it slows down to between 20mph and 0mph it feels like someone is putting the foot on the brake, then taking it off, then on, then off etc as the car comes to a halt giving the effect of pulling me back, then not then back then not etc...

Has been getting worse since I first noticed it on 13th Feb.

They don't seem to be stopping as well either, what is this likely to be and how can I best investigate it without simply buying new brakes all round?


Thanks
 
Peerzy said:
Car is a Fiat Bravo MY07 1.4 Tjet
Brakes
When slowing down from say 60mph gently I get a rather strong 'judder' (shaking) through the steering wheel, as it slows down to between 20mph and 0mph it feels like someone is putting the foot on the brake, then taking it off, then on, then off etc as the car comes to a halt giving the effect of pulling me back, then not then back then not etc...

Thanks
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That just sounds like ABS to me, but I don't know why it would be if you're only putting the brakes on gently.

Do you even have ABS?
 
Ofc it has ABS!

It's kicking in as a result of your shockingly bad front tyres, where the brake bias happens to favour.

If it does it after putting new boots on get it checked out, might have a fault sensor or ABS ring.
 
Sin_Chase said:
It's kicking in as a result of your shockingly bad front tyres, where the brake bias happens to favour.
Click to expand...

But he said they are still within the legal limit and it judders, sounds like something might be misaligned?

The 20mph-0 description doesn't though, unless the description is a bit off :p
 
Sorry to clear things up, the front tyres are still legal but not by much - so not 'shockingly bad'. Rear tyres have plenty of tread left.

The brake issue is most noticable when gently braking but the wheel still shakes from side to side and judders when braking hard.

I hadn't thought of ABS but the brake pedal doesn't 'fight back' like when I emergency stop. It's also more noticable at certain speeds (going from 5mph to 0mph but gently braking is very obvious the car is pulling back then not etc...)

Car does have ABS.
 
First call is usually checking discs for warping/inproper seating?
Then any bushes which would come more into play during breaking?
 
It could be something else, but an ABS fault will usually bring up a light on the dash since the system is checked prior to use, could be a faulty caliper i suppose but i'd go with the discs.

I'd only go with the 452's, Asymmetrics or Sessantas, never tryed the 452's but most seem impressed.
 
You say it only happens under breaking, even lightly so it's not tracking/tyre issues or it'd happen all the time.

Can you test if this happen all the time, (meaning when the car is cold) or does this happen only when it's warmed up.

Discs can warp, in different ways, you could have part of it heating up more than others, in fact have you checked your pads/discs recently? Over heating in sections can cause the same effect as the whole disc, juddering.

Edit: Not really in the know with ABS faults myself but it would depend, you're not even getting to the stage of needing ABS are you? just casual braking..
 
Firestar_3x said:
It could be something else, but an ABS fault will usually bring up a light on the dash since the system is checked prior to use, could be a faulty caliper i suppose but i'd go with the discs.

I'd only go with the 452's, Asymmetrics or Sessantas, never tryed the 452's but most seem impressed.
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No ABS light has come up, only when going on and off the rolling road a few times but this is normal. Engine management light came on for about 2 minutes after my crash but went out right away.

ChrisJSY said:
You say it only happens under breaking, even lightly so it's not tracking/tyre issues or it'd happen all the time.

Can you test if this happen all the time, (meaning when the car is cold) or does this happen only when it's warmed up.

Discs can warp, in different ways, you could have part of it heating up more than others, in fact have you checked your pads/discs recently? Over heating in sections can cause the same effect as the whole disc, juddering.

Edit: Not really in the know with ABS faults myself but it would depend, you're not even getting to the stage of needing ABS are you? just casual braking..
Click to expand...

It happens all the time, cold, hot etc...

I'm useless with car mechanics so wouldn't know how to check the pas/discs or what I would be looking for.

This is under any sort of braking. I don't think it is an ABS issue personally.
 
When is the last time you had a service or had that area specifically looked at (and/or had pads changed and discs should have been inspected at the same time).

A problem this bad with your knowledge calls for a visit to a garage imo, if you're trying to sell a car I don't think anyone in their right mind would buy it with those problems.
 
ChrisJSY said:
When is the last time you had a service or had that area specifically looked at (and/or had pads changed and discs should have been inspected at the same time).

A problem this bad with your knowledge calls for a visit to a garage imo, if you're trying to sell a car I don't think anyone in their right mind would buy it with those problems.
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The car last had a basic service about 6 weeks ago, he warned me about the front tyres but didn't mention the brakes however I've no reason to believe he looked at them.

As far as I'm aware pads/discs are all still on from the factory so coming up to 3 years and 22k on the clock.

Not looking to sell the car at all at the moment but it will be going in August.
 
glazed pads possible? I seam to get that every time i go camping in the alps takes about a month to two, of normal driving to go.

If not that then warped disc a distinct posssiblity.

For tyres, I have same size tyres 225 45 17 and have had falken 452, seamed solid enough and am now on ultra sessants.

cant say i notice to much difference but reckon the ultra are better in the wet. but the 452 are normaly £10-15 cheaper.

If i were you id go for Falkens but only the 452's.
 
It's blatantly brake judder caused by uneven disk surface. It's not the ABS or worn tyres or anything :p I had it recently. New front disks cured it.

If the braking isn't quite as good either, then the pads could be glazed which could have been caused by excessive heat, maybe a caliper was sticking at one point, which glazed the pad, and transferred half the pad to the disk in one particular spot once the car was at a standstill, hey presto, uneven surface.

Could also be a worn wishbone bush or similar causing movement/oscillation but that's not nearly as likely
 
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