Braking problem, the car brakes while driving ?

Hi,

This is an odd one. The idea of actuating the parking brake a few times for it to release doesn't make sense to me because the actuators are on the rear only.

Before having a new ABS module installed, was the same thing happening? Also, I need you to check something. I'm not sure how far you drive before this happens, but if it is a mile, for example, drive it about 3/4 mile and stop and check if there is excessive heat coming from the affected wheels.

Also, you may want to have the can-bus scanned for diagnostic trouble codes. CAN stands for controller area network.

Basically, the modules are tied together via a few wires and communicate with each other. This type of scan will retrieve codes regardless of which module is storing them.

Here is a link showing how it's done:

https://www.2carpros.com/articles/can-scan-controller-area-network-easy

Let me know if you have already done a scan. If you haven't, let me know if it is something you can do or have done

Take care,

Joe

Sometimes it drives the whole day without braking at all and sometimes it keeps braking every couple of miles. so, i tried to drive it while its braking and the excessive heat is coming from the front passenger wheel only to be honest i don't remember if it did the same before the ABS was replaced or not. Also, OBD doesn't show any errors. I went to a friend who has Audi OBD app and we even tested the brakes with the software on all 4 wheels they all work fine.

Hi,

If you are getting excessive heat from the front right, do this:

Lift that wheel off the ground so you can turn it. Have a helper apply the brakes so it locks up. Have them release the brake pedal and see if you are able to turn the wheel. If you can't, open the bleeder on the brake caliper to see if the wheel can be turned. If it is, replace the rubber brake hose to the caliper. If there is no change, chances are it is a caliper issue.

I attached a pic below showing the bleeder location. Also, when you do this, just open it for a couple of seconds and then retighten it.

Let me know what you find.

Joe

See pic below.