Could a malfunctioning ASR cause an occassional "whumping" noise to come for the front right handside? I had it looked at by the dealer but they found no cause. The car drives fine but there is just an occassional noise that sounds like I am driving over white lines

Isn't ASR just electronic gizometry? Sounds to me more of a suspension (or thereabouts) problem...

It was put through an MOT at the same time and passed no problems, so I think its anything majorly mechanical. My thoughts are that it could be the ASR kicking in, I think it just pinches the brakes to prevent wheel spin. It comes from the right handside and that wheel is always covered in more brake dust than the left

Ok. I am by no means a mechanic (far from it), but I am pretty sure the brakes are hydraulic/mechanic. ASR is electronic, it will cut power to the wheels when it senses that there is no grip. ASR can not use your brakes... scary thought if it would :eek:!

If you say that you see more brakedust on that side, then maybe you have a sticky caliper?

Ok. I am by no means a mechanic (far from it)' date=' but I am pretty sure the brakes are hydraulic/mechanic. ASR is electronic, it will cut power to the wheels when it senses that there is no grip. ASR can not use your brakes... scary thought if it would :eek:!

If you say that you see more brakedust on that side, then maybe you have a sticky caliper?[/quote']

How can it cut the power to one wheel?

The ASR uses individual brakes as far as i know, it acts like an electronic limited slip diff - only using the brakes.

ASR automatically reduces engine torque in the event that too much engine power or torque is being transmitted to the drive wheels, eg on a slippery surface. ESP provides individual braking to the wheels involved in the event of sensors identifying a risk of skidding. ESP includes the ABS/ASR systems.

And EDL Denis

But your spot on, ESP uses the brakes to keep you straight ahead using a steering angle sensor and yaw and lateral sensors.

But owlets's is an Octavia and would have no ESP?

is it the same noise that you get when the asr cuts in?mine sounds very distinic,a kind of whumping as you put it,almost a knocking sound

But owlets's is an Octavia and would have no ESP?

My octy has ESP...didn't we clear this up before

Cheers

Ventmore

My octy has ESP...didn't we clear this up before

Cheers

Ventmore

Yes we did, but you are not owlet :P

Yes we did, but you are not owlet :P

True, but I don't think mine was a one-off :P

Cheers

Ventmore

True' date=' but I don't think mine was a one-off :P

Cheers

Ventmore[/quote']

True but...... owlets' RS has just had an MOT making it one of first RS' and which would be fair to assume that ESP was not an option.

Hell, it wasn't an option when I got mine.

owlets,

when does the noise occur? Under normal/hard acceleration, flat/bumpy roads etc?

True but...... owlets' RS has just had an MOT making it one of first RS' and which would be fair to assume that ESP was not an option.

Hell' date=' it wasn't an option when I got mine.

owlets,

when does the noise occur? Under normal/hard acceleration, flat/bumpy roads etc?[/quote']

Well deduced...but, it was implied that it would not have it due to the fact it was an octavia, and not because it was an old octavia.

However, I will consider myself officially told

Cheers

Ventmore

ASR automatically reduces engine torque in the event that too much engine power or torque is being transmitted to the drive wheels, eg on a slippery surface.

How does it sense that the wheels are on the point of slipping ?

its after slip rather than on the point of,i think

this problem could be anything,dealers can miss the bleeding obvious at the best of times

is it the same noise that you get when the asr cuts in?mine sounds very distinic,a kind of whumping as you put it,almost a knocking sound

I can't tell when the ASR kicks in as the light doesn't seem to work. BUt the sound is deffo a "whumping" noise. There is no perforace problems associated with the noise, the only other problem is that it tends to drift to the left

I can't tell when the ASR kicks in as the light doesn't seem to work. BUt the sound is deffo a "whumping" noise. There is no perforace problems associated with the noise, the only other problem is that it tends to drift to the left

This drifting to the left would suggest to me it's not the brakes.

If you were locking the RIGHT brake as said in your first post, while powering the left, the car would go RIGHT not left... aka tank steering.

Gets stranger & stranger.......

I think the drifting to the left could be the tracking, it only does it when you take you hands of the steering wheel. It doesn't pull to the right, just getting the occassional "whumping" noise.

Suppose I should take it back, got 12 months Approved Used SKoda warranty

Take it back to the dealer then, are they good have a read through the dealer reviews for peoples opinions on them. good luck

I think the drifting to the left could be the tracking' date=' it only does it when you take you hands of the steering wheel. It doesn't pull to the right, just getting the occassional "whumping" noise.

Suppose I should take it back, got 12 months Approved Used SKoda warranty[/quote']

I believe "they all do that, sir" However, as it's under warranty, no harm getting it checked out

Chris

Take it back to the dealer then, are they good have a read through the dealer reviews for peoples opinions on them. good luck

I'm the only one to place a review about the dealer!

If I try to pull off from rest with far too much revs, dump the clutch and leave the ASR on I get a loud thumping noise too - same in the GF's Golf PD130 - this has happened with both cars from new - hence I assume it's something to do with the ASR / TC / ESP and nothing to worry about.

My Octy also drifts to the left with "hands off" the steering, has done since new, had the tracking / alignment checked a couple of times. IIRC there were some threads about this in June last year - again I think it's a common Octy trait and nothing to worry about.

I dont know what to suggest, How does the pad wear compare on each side. Look at the front and back pads on each side.

Sounds like a plan, although not sure if I can be bothered, should really just take it back to the dealer

Is it me or does Ruud van Nistelrooj look like a horse?