S4_Cinci (I S'edTFA)

all the way to the floor at stoplights. I assume my master cylinder is toast; but my main question is does this type of warning set a code and will it reset itself. The brakes appear to work OK while driving (for now), but I don't want to demand a tow to the dealer and then find out the system has reset itself and they cannot duplicate the problem.

Thanks a lot for any help you can provide!

O.W. Kenobi

Check your fluid level first.

S4_Cinci (I S'edTFA)

Fluid was the 1st thing I checked. My dealer is famous for "unable to duplicate concern" on any problem you have with the car; thus my concern that a code will be set and able to be found easily at the dealer. BTW, 100% stock and still under warranty.

JasonS4+Festicle

flatbedded into the to stealership.

If they cannot duplicate the problem, then ask nicely to speak with the service manager and explain that this has happened repeatedly when you drove the car.

I'd REFUSE to pick-up the car until they find something wrong with it - this is a safety issue!

S4_Cinci (I S'edTFA)

I've taken them to arbitration twice and won each time. They don't particularly like me, but roadside will not likely tow me 40 miles past my dealer just 'cause I don't like going there...

JasonS4+Festicle

car in Milwaukee. (Long story but I was living in IL and commuting to Milwaukee for some time - it was easy to use the Milwaukee dealer) -

anyway, when I had a problem, Audi wanted to tow me to one of the Chicagoland dealerships. I asked nicely to be towed to Milwaukee - they did.

Don't call ahead to the dealership to tell them you're having it towed in. Just call roadside and have it flatbedded - I'd leave a note on the seat asking them to call you when it arrives.

Again, it's a safety issue - I would refuse to drive a car that had braking issues.

S4_Cinci (I S'edTFA)

Thanks for the input, everyone. Calling Roadside now! Looks like a new mstr cyl is in my future.

MachtigAvant (v3.0)

When was the last time you flushed the system? I've had similar experiencs with boiled/old fluid.

S4_Cinci (I S'edTFA)

slave cylinders were replaced. Fluid looks absolutely new - slight yellow/gold color, but you can barely tell there is anything in the reservior because it is so translucent - but the master is full of fluid. I just have the worst luck with this car - just got the car back from service yesterday for some unrelated stuff; except I asked for the rear brakes to be replaced as I measured less than 2 mm between the backing plate and the rotor when parking brake is applied. Audi said they were not worn below min specs yet. I guess once the backing plate starts rubbing the ridge on the outside edge of the rotor they will replace the pads.

MachtigAvant (v3.0)

Sorry to hear about the issue. I had the brake flashing at me during VIR, but all good now. Must had been the g forces because the fluid is completely full! Good luck!