Brake warning light

Post by **Pete.S** » Wed Jun 08, 2005 6:36 pm

Anyone had their brake warning light, accompanied by the warning beeps, come on on the DIS under heavy cornering? The pads are fine, and it doesn't come on under excessive braking. Just had the car serviced at Audi & they couldn't find any faults, but was unable to take the car out with a technician to try & recreate the fault (it's too busy near the dealers to start throwing the car about during working hours).

Post by **Scotty** » Wed Jun 08, 2005 11:41 pm

No but very occasionally on start up. Again no problem found and it goes after a few secs.

Post by **Pete.S** » Thu Jun 09, 2005 10:13 am

Mmmm. Seems like the sensors may have a life of their own then. I've been told the sensors are actually in the pads themselves, any ideas what might be causing them to show a fault on the DIS?

Post by **Pete.S** » Wed Jul 20, 2005 8:06 pm

Finally got to the bottom of this - brake fluid level. Worked that out all by myself, good eh? Well, bloody better than Audi who couldn't diagnose it

Post by **Scotty** » Thu Jul 21, 2005 9:08 pm

hehehe Sorry I'd assummed you'd checked that.

Post by **Pete.S** » Fri Jul 22, 2005 11:04 am

...just can't get the staff

Post by **Bonzo** » Thu Mar 23, 2006 3:55 pm

Had the same problem with my S4 Avant, a few weeks after taking ownership. It started off as a rare annoyance, then deteriorated into an event that happened under even the most gentle cornering - I even isolated it to happening on right hand turns only!

Audi had checked all the fluid levels OK and looked at the brakes - OK again, so asked me to book it in for a proper look.

Turned out there was a loose connection in the wiring loom behind the dash - no sensor or brake problem at all. Tightened up the wire and not had a peep since.

Post by **TonyFoo** » Fri Mar 24, 2006 1:44 pm

Happened to me in really cold weather. It's just the brake fluid needs a top-up.

S4 AMD Stage 3

Post by **Daz** » Sat Mar 25, 2006 11:55 pm

Yeah I had this too at a track day last week. Brake fluid was above minimum but still needed a top up anyway.

Post by **JampoTT** » Tue Mar 28, 2006 3:59 pm

Yeah, I've had it under heavy cornering. I'm also pretty certain my pads are stripped anyway, so put it down to that - but I'll give the fluid a check too... what should I be topping up with?

Post by **Scotty** » Tue Mar 28, 2006 9:03 pm

It says on the brake fluid cap DOT4 so I guess that the standard fill.

RS246.com Forum :: The World's #1 Audi R, S and RS Enthusiast Community