Hot Brakes
Thread Starter
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
Hot Brakes
On my normal ride home I come off the off ramp and down a steep incline and normally have to stop at the lights. At the bottom of the hill there's invariably a tail wind.
I notice that after heavy braking I get a lot of smoke from both sets of wheels on the left. It's only this one spot where I hit the tail wind after heavy braking that I ever notice it.
I know these high performance brakes run hot. Look at the action shots of the F1 cars. I was wondering if anyone else has the same thing?
I notice that after heavy braking I get a lot of smoke from both sets of wheels on the left. It's only this one spot where I hit the tail wind after heavy braking that I ever notice it.
I know these high performance brakes run hot. Look at the action shots of the F1 cars. I was wondering if anyone else has the same thing?
Team Owner
Joined: Jul 2004
Posts: 124,409
Likes: 288
From: .... NJ
Cruise-In VII Veteran
St. Jude Donor '05 thru '19
Having smoke come from your brakes just from exiting a freeway ramp, decline and tail wind or not just does not seem normal to me. Is it an A4 and are you riding the brakes with your left foot down the highway? I would have this checked out.
Thread Starter
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
Its an A4 but I never ride the brakes with my left. I'm used to stick shift so my left usually does other things.
May well ask the dealer to look next time its in.
May well ask the dealer to look next time its in.
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
Originally Posted by DeeGee
On my normal ride home I come off the off ramp and down a steep incline and normally have to stop at the lights. At the bottom of the hill there's invariably a tail wind.
I notice that after heavy braking I get a lot of smoke from both sets of wheels on the left. It's only this one spot where I hit the tail wind after heavy braking that I ever notice it.
I notice that after heavy braking I get a lot of smoke from both sets of wheels on the left. It's only this one spot where I hit the tail wind after heavy braking that I ever notice it.
Many ppl do a lot of track time and use racing brake pads, PFC-01, Wilwood J or H, Carbotech XP-9 or XP-10 pads to name a few pads.
If your braking that hard you may wish to concider a more agressive brake pad to help you stop. Of course that will mean more dust too.
Le Mans Master
Joined: Sep 2003
Posts: 5,374
Likes: 0
From: Jacksonville Florida
Odd that this is only the left side. It would seem your car would pull to that side if there were an imbalance in the system. You might get your pads checked for un-even wear to see if there is such a problem. You might have a brake line problem on one side of your car.
I've only ever noticed any smell or "smoke" after running in autocross or extremely hard braking. That's normal.
Of course, there is always the option to slow down before entering the exit, too.
I've only ever noticed any smell or "smoke" after running in autocross or extremely hard braking. That's normal.
Of course, there is always the option to slow down before entering the exit, too.
Thread Starter
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
Originally Posted by AU N EGL
May have been brake dust that caught the tail wind and blew infront of you, not smoke.
:
:
I guess it answers my question though, as no one else seems to have the same problem.
Safety Car
Joined: Jun 2004
Posts: 4,769
Likes: 15
From: Lovin Life Oh
my money is on brake dust but if i had to choose differently id say you just got the discs put on and the mechanic was bleeding the brakes and got brake fluid on the disc
brake fluid will stay on the disc for a hundred miles or so and will smoke after it gets hot
brake fluid will stay on the disc for a hundred miles or so and will smoke after it gets hot
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