brake squeel. I know from board this is a cold weather issue, new 2015 s4 l 400 miles

[jygesq]

is it a very high pitched sound when you step on brakes? and possibly when you release them? my car has about 400 miles

[doug97gxe]

if you know from this board.. wasn't the answer in those threads?

[jygesq]

just checking on the nature of sound ,a very high pitched sound?

[doug97gxe]

yeah.. it sounds like your brake pads are worn down.. its due to metallic pads on metallic rotors

[jygesq]

thanks

[AKPS4]

Pads worn down at 400 miles? Doubt it...

[PSUGOLD]

Mine started now that is is 40 degrees and is driving me NUTS. Holy shit it is loud. 40 degrees out and EVERY time I come to a smooth stop you can hear my brakes a mile away. Hell, I woke my damn wife up when I came home the other night because they squealed so loud. I love the car, but this squealing brake issue is fucking ridiculous.

[Thumper3]

I have just under 300 miles on mine now, pretty much everytime I have driven it it has been under 40*F, sometimes under 30 LOL

Have not experienced any brake noise.

Does the noise only happen just as you engage them and then stop as you continue braking?

[jygesq]

usually after a short time after I engage brake. Have you bedded your brakes in? It is intermittent not all the time. I will check with dealer next week

[doug97gxe]

Pads worn down at 400 miles? Doubt it...

not pads worn down.. "sounds like"

[doug97gxe]

usually after a short time after I engage brake. Have you bedded your brakes in? It is intermittent not all the time. I will check with dealer next week

bedding the brakes is a temporary fix

[doug97gxe]

http://www.audizine.com/forum/showthread.php/624949-New-S4-squeaky-breaks-what-to-do?highlight=brake+squeal

[chaos2984]

how are you using the brakes is it every time. Is it on damp morning then goes away. Only on first apply or is it all the time. When was your S4 built. Could be lot rot on the brakes. If it's intermittent your going to need to answer all these questions when you take it in. I would take it in brake squeals are not normal unless your pads are worn all the way down but thats not your case. I would make sure if it keeps up to take it in before 1000 miles. You might get new pads out of it this early.

My B7 S4 did this and it was an issue with the brake caliper piston and there was a TSB about it. There could be a TSB or something about it that audi's knows and public does not.

[doug97gxe]

how are you using the brakes is it every time. Is it on damp morning then goes away. Only on first apply or is it all the time. When was your S4 built. Could be lot rot on the brakes. If it's intermittent your going to need to answer all these questions when you take it in. I would take it in brake squeals are not normal unless your pads are worn all the way down but thats not your case. I would make sure if it keeps up to take it in before 1000 miles. You might get new pads out of it this early.

My B7 S4 did this and it was an issue with the brake caliper piston and there was a TSB about it. There could be a TSB or something about it that audi's knows and public does not.

there are millions of threads on this issue.. mine was doing it at 500 miles.. again the reason is the type of pads and type of rotors.. the fix is either to bed the brakes or switch to a ceramic pad .. i and many of others have brought their cars to the dealer.. the standard response is high performance brakes always do this.. then they do nothing about it

[Dr GP]

there are millions of threads on this issue.. mine was doing it at 500 miles.. again the reason is the type of pads and type of rotors.. the fix is either to bed the brakes or switch to a ceramic pad .. i and many of others have brought their cars to the dealer.. the standard response is high performance brakes always do this.. then they do nothing about it

Actually, they performed some type of Voodoo magic on my 2010 when I first got it. Supposedly beveled the edges of the pads and put some type of goo on the back of the pads. It did help. I have not noticed much squeal on my 2011. But I have no idea what type of pad the previous owner might have put on the front. Rears are OEM Audi. IMHO, ceramics is the way to go.

[eurotic]

I've had my S4 for a little less than 2 months. I got it used and it had all the rotors and pads replaced with all OEM parts. After driving conservatively on them for a few weeks (in temps at about 15 Celsius) I did a bedding session and all was fine. It has now be between -10 and -24 Celsius for 3 weeks and over the last week gradually the brakes are squealing more and but only on very light application like slowly coming to a stop. If I use even moderate pedal pressure the squealing goes away. It is not nearly as load as the squeal I got from my Golf R's brakes but it seems to be getting worse.

I am totally guessing that in the cold temps because the pad material basically never comes up to temp that the stopping force is more frictional and the deposit layer that bedding the brakes deposits gets scrubbed away and the squealing starts...it's just a guess though. I will try to find a dry enough section of road to re-bed the brakes and see what happens. Also I guess I should look at the rotors and see if they still have the nice grey layer of material on the rotor.

[chaos2984]

there are millions of threads on this issue.. mine was doing it at 500 miles.. again the reason is the type of pads and type of rotors.. the fix is either to bed the brakes or switch to a ceramic pad .. i and many of others have brought their cars to the dealer.. the standard response is high performance brakes always do this.. then they do nothing about it

Umm how about NOOOOOO. its not normal and not acceptable. If a dealer tells you that i would be on the phone with Audi. I would demand brake replacement. Ive had mine for 5K miles now since new and its quite as a church mouse. When i worked at a chevy dealership we would try all kinds of stuff to get it to go away and in the end had to replace the pads if it didn't go away.

But unless Audi comes out with a bulletin that states its normal its not normal. Manufacturers will put out bulletins to if they think X condition is normal.

[doug97gxe]

Umm how about NOOOOOO. its not normal and not acceptable. If a dealer tells you that i would be on the phone with Audi. I would demand brake replacement. Ive had mine for 5K miles now since new and its quite as a church mouse. When i worked at a chevy dealership we would try all kinds of stuff to get it to go away and in the end had to replace the pads if it didn't go away.

But unless Audi comes out with a bulletin that states its normal its not normal. Manufacturers will put out bulletins to if they think X condition is normal.

tell that to everyone in all these threads .. cuz we all got the same response.. one of the threads i linked someone told me that every new owner should bed their brakes.. to which i responded that's bullshit.. you can't expect the average consumer to bed their brakes when they get a brand new car.. the dealer should do it before hand.. read the thread.. you will see

[chaos2984]

tell that to everyone in all these threads .. cuz we all got the same response.. one of the threads i linked someone told me that every new owner should bed their brakes.. to which i responded that's bullshit.. you can't expect the average consumer to bed their brakes when they get a brand new car.. the dealer should do it before hand.. read the thread.. you will see

Yea i see and understand you but you have to look at it at a normal customer stand point to where your driving this 50k+ car and it has brake squeal. To a normal joe smo that would be completely unacceptable. Would you be accepting of an interior rattle or wind noise if the dealer said it was normal. Honestly i would be calling AOA until they did something about it. Unless they produce a bullition that says its normal. And like i said its cold where i live and i have 0 noise out of my brakes.

[doug97gxe]

Yea i see and understand you but you have to look at it at a normal customer stand point to where your driving this 50k+ car and it has brake squeal. To a normal joe smo that would be completely unacceptable. Would you be accepting of an interior rattle or wind noise if the dealer said it was normal. Honestly i would be calling AOA until they did something about it. Unless they produce a bullition that says its normal. And like i said its cold where i live and i have 0 noise out of my brakes.

they had a TSB for 2010 and what they were doing was changing the pads to a ceramic pad.. for some reason that died off.. i don't know why.. but after reading a few threads it seems everyone has just rolled over and accepted it.. Trust me i know its not acceptable.. i have a Craftsman Air compressor at home.. i'm usually one to do my own brakes so i know a thing or two about cars.. but the thing being shoved down our throats is "its high performance brakes.. they are suppose to do this" .. its embarrassing .. you have a brand new 2015 60k car and you slowly creep to a light and its a loud squeal .. personally i just turn up the radio more now

[Thumper3]

but the thing being shoved down our throats is "its high performance brakes.. they are suppose to do this" .. its embarrassing .. you have a brand new 2015 60k car and you slowly creep to a light and its a loud squeal .. personally i just turn up the radio more now

Agreed. Race/track pads will squeak, I doubt highly those are factory equipped though so there shouldn't be any squeaking.

I did nothing to specifically bed my brakes other than taking it easy for a normal new car break in with only a few harder (but not HARD) stops.

[chaos2984]

Agreed. Race/track pads will squeak, I doubt highly those are factory equipped though so there shouldn't be any squeaking.

I did nothing to specifically bed my brakes other than taking it easy for a normal new car break in with only a few harder (but not HARD) stops.

yea but you should call AOA and file a complaint about it. See what they do. Also it only takes about 2-3 hard applies to seat in factory pads and rotors. I did brakes all the time and you just need to get them hot enough to help with the transfer of the resin of the pads into the rotor. I just did a few good applies at hwy speed and they were good for 30 40 k miles until they needed brakes again.

[Thumper3]

yea but you should call AOA and file a complaint about it. See what they do. Also it only takes about 2-3 hard applies to seat in factory pads and rotors. I did brakes all the time and you just need to get them hot enough to help with the transfer of the resin of the pads into the rotor. I just did a few good applies at hwy speed and they were good for 30 40 k miles until they needed brakes again.

Well, I don't have to call them cause my brakes don't squeak. :D

I dunno, maybe after all these years I just subconsciously bed brakes in. lol

[doug97gxe]

yea but you should call AOA and file a complaint about it. See what they do. Also it only takes about 2-3 hard applies to seat in factory pads and rotors. I did brakes all the time and you just need to get them hot enough to help with the transfer of the resin of the pads into the rotor. I just did a few good applies at hwy speed and they were good for 30 40 k miles until they needed brakes again.

i gave up.. can't be bothered

[jygesq]

Strange no squeal in the rain, same temp as before

[PSUGOLD]

It is 45 degrees here tonight and raining. BRakes are screaming every damn time I come to a slow stop. This is ridiculous. I just got my car tuned too, now I have to go get the tune removed so I can take the damn car in for the brakes and avoid TD1? Unreal. I guess I can wait 5 months til my 15k service to get it looked at. Sonofabitch.

[hyperunion]

"High performance".. Wouldn't consider same calipers used as a4 as high performance.. The new q5 has light weight 4 piston brembo calipers right from the factory... Something Audi should have included stock on s4s

[santos.]

Temperature dropped below 50 this weekend, car sounds like a damn school bus. Dealer has already attempted to fix. Should I try some aftermarket pads? Definitely don't want to sacrifice performance, but have had family in town the past few days and it's been incredibly embarrassing...

[LIM1TED]

Finally got this fixed over the weekend after taking S4 to Audi dealership and them saying its an "S" pad and trying to get fixed under warranty I said "F" them Ill fix this myself. S4 has 19k miles and this is its second winter and didn't have this issue last winter. Took the S4 into my shop and resurfaced the rotors also clean the brake pads with sandpaper and apply some stop squeal directly to pad. It was 29 degrees this morning here and brakes are dead quiet again....


https://www.powerenhancer.co.uk/shopimages/products/normal/bg/BG-860-stop-squeal.jpg

[tanklee]

OP. take it to the dealer ASAP and adamantly complain. the sooner the better. the reason being is that the car might've been sitting on the lot for a bit thus having a lot of rust build up on the rotors. check to see if there are "brake pad" marks on the rotor itself. if there are "pad marks," it will most likely get replaced. we've replaced a a bunch of those around here.

[anerbe]

Earlier the complaint, the better. You will be on the hook once there is measurable wear on the brake components.