Brakes applying themselves

[darcus30]

Good evening

Hopefully you can advise me, I have a 2015 (facelift) 1 series , last week I was driving and the brakes seemed to apply thereselves, slowing the car right down. After pulling over and waiting a while it drove fine. 

Then a few days later happened again with a burning smell from front left

I took it to the garage and they said a stick caliper, they also replaced disk and pads As well as calipers.

I picked it up £790 lighter and its happened again.

I'll be calling them first thing in the morning to see what they say

 

I've done the basic servo check, engine off  pump break until hard, start engine and the pedal releases so surely this can't be the servo.

Any ideas at all?  I'd like to speak with them having a little knowledge

many thanks in advance

 

Mark .

 

 

[Greydog]

Morning Mark

Welcome to the Forum

Your car has Disc's front and rear plus the master cylinder, I assume that the garage changed both the front calliper's and discs? Brakes don't apply themselves unless your car has Cruise Control with distance control (which I don't believe 1 series had). That leaves the Rear callipers or Master cylinder, if the binding happens a hand near the wheel centre will let you feel the heat (don't touch the wheel or hub unless you don't mind loosing skin 😁) If all brakes are binding or even just the Front I would suspect the Master cylinder remember it is separate to the Vacuum Servo

Good Luck

Dave

[darcus30]

Hi Dave

Many thanks for your response, it's defo the fronts as touching the rears they were cook.

Garage jave taken another look and said its and intermittent brake servo that needs replacing .

I appreciate your help, a great forum