Vibrateing Brake Pedal when brakin hard??

[moditsteve]

I was wondering if the following is normall or if anyone can explain it ~
When i maybe brake hard but NOT lock up i get a rubbling/vibrating! through the brake pedal i can push through it and then it will lock, It doesnt affect the brake force but it seems to be a warning to tell me the wheels are on the edge of there grip level?
its the only way i can really explain it?

does anyone else have this is it normall????

as i say its under heavey breakin only and happens like a warning before ABS would come in ? it seems good to me as its like a warning lol

any ideas ???

cheers

 

[Triple D]

Thats your ABS kicking in i hink chap

 

[moditsteve]

but the wheels dont skid there is no sound and everything feels normall?? apart from this grindin

 

[Saul]

abs, or you're discs are warped

but i bet its abs, you wont skid thats the whole point

 

[aaronbromley]

Its definately ABS, the whole point is that your wheels dont skid, i bet it feels like there are stones stuck between the pads and the disk when it happens? thats what i thought when i first had it kick in. The pedal seems to push up at your slightly when it happens too. Nothing to worry about at all.

 

[Triple D]

Well, you obviously havent been pushing the car too hard then if you havent had the ABS kick in

 

[redcupratdi]

the 4 pots on the cupra do this alot... deffo ABS....

 

[Brummy]

ABS.. get it all the time in the Mk4.. but i DO push it

*gonna be fun getting the cupra doing it *

 

[F2 Stu]

The vibration your feeling, is the ABS pump pulsating/modulatiung the pressure in the line to apply & re apply the brakes

 

[dmjw01]

Does the vibration slow down as you brake? If it does, then it's not the ABS but more likely to be warped discs.

Otherwise, if it's a constant, very rapid vibration then I agree with everyone else that it's most likely the ABS.

 

[moditsteve]

i tried some brakin on way home of nights and i can now say its the ABS? i have never had ABS before and as i have never had it come in before i didnt know what it would feel like didnt think i would feel it through pedal .

its a strange old set up not what i thought but its all good cheers all