2013 AUDI A8 Service Brakes Problems

Brake pedal is hard when starting the vehicle. Brake pedal turns soft when engine is started. The brake pedal is so hard that it requires significant force to depress sufficiently to start the engine. This indicates loss of vacuum in brake booster when engine is off. The vehicle is equipped with a start/stop system and it seems likely that the brakes would not sufficiently hold the vehicle when the start/stop system turns off the engine.

Me and my son were traveling on a business road trip from my home in Lincoln, CA to do business at several companies and end up at a customer located in Anaheim, CA. We started on [XXX] in Roseville, CA highway Interstate [XXX] traveling towards Anaheim with stops along the way. We were coming down [XXX] on the southside of the grapevine at the speed limit of 70 MPH, when the engine began to stall, and the steering also began to lock up. We began losing control of the vehicle and engine power was failing and stalling. In addition, the stall was impacting the car battery. We had difficulty steering the car and controlling the direction of the car and getting the car to the side of the road. Once we were at the side of the road, we looked up the closest Audi dealership, fortunately we were 3.9 miles...

1. OeM audi windshield started leaking water inside the vehicle. Thia is very unsafe when driving thru rain as water pours down the inside of the glass. 2. Uneven and creaky suspension. Vehivle pulls on side where suspension is not leveling thw vehicle out. 3. Followed all processes in changing brake pads, toros, sensors etc. Brake light doesnt go away after replacing all brake components and resetting brake warning light. Very uneasy feeling driving around qithtbhe light on as unsure as to brakes would spontaneously fail.

TL* THE CONTACT OWNS A 2013 AUDI A8L. THE CONTACT STATED THE BRAKE PEDAL WAS INSTALLED TOO CLOSE TO THE SIDE WALL ON THE FLOOR BOARD. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER, WHO STATED THAT WAS A MANUFACTURER DESIGN WITH THE BRAKE PEDAL INSTALLATION. THE MANUFACTURER WAS NOTIFIED OF THE PROBLEM. THE APPROXIMATE FAILURE MILEAGE WAS 300....UPDATED 05/08/13 *BF THE CONSUMER STATED AFTER FURTHER INVESTIGATION WITH THE DEALER, IT WAS DETERMINED THAT THE SPACING BETWEEN THE BRAKE PEDAL AND THE FOOTWELL SIDE WALL WAS DIFFERENT BETWEEN 2011 AND 2013 MODEL YEARS. THE LOSS OF 3/4 OF AN INCH IS WAT IS CAUSING THE FAILURE. UPDATED 05/30/2013 *JS