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Brake pads fused to discs

scohtay

Member
May 1, 2019
32
10
United Kingdom
Don't know if anyone had this problem but it was a bugger. Model 3P purchased Aug. 19. Washed my car, put it in the garage, went on 10 days trip, got home, car would not move!

Two tow trucks, multiple calls to Tesla (service center is a mile from my house but they wouldn't send mobile service). Finally, second tow guy puts skates on my rear wheels as I tried to (slowly) reverse out of the garage - nothing happened. He took those off the back and put them on the front tires and as I slowly tried to reverse we hear a pop and it luckily comes unstuck.

It seems all four pads were fused to the discs. He towed it to Service Center. They cleaned discs and it was ready to go in an hour. Tesla guy says "Don't wash your car and go on a 10 day trip." Yeah, my fault.
 

Dangerous Fish

Pilots the Millennium Milkfloat
Supporting Member
Jul 21, 2016
1,768
2,879
UK
It can happen with any car which uses the rear pads to act as a parking brake.

I have had problems like this with several BMWs over the years so with any manual car I just leave it in gear and don't use the handbrake any more for parking.

The trouble with the Model 3 is that it applies the parking brake itself and you can't disengage it when you're out of the car unless you use tow mode, but that's not going to be an option for a 10 day trip!

Just make sure the brakes are completely dry in future. Go for a drive before you park it up and use the brakes rather than regen so you get a little heat into them.
 
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Ames

Member
May 27, 2013
659
380
Abu Dhabi, UAE
I have a profile I called "Car Wash"; no regen, no hold, no creep, and Chill Mode.

Because I wash my car weekly at night before going to bed, I use it for a quick drive around the block where I drive slowly while gently holding down the brake (and letting the car complain about both pedals being pressed). It's a procedure that takes 2 minutes and ensure that when I leave for work the next day I don't have to hear that nasty cracking sound caused by rusty brake discs getting stuck to the brake shoes.
 

Lunares

Member
Jul 9, 2018
752
572
San Diego
I have a profile I called "Car Wash"; no regen, no hold, no creep, and Chill Mode.

Because I wash my car weekly at night before going to bed, I use it for a quick drive around the block where I drive slowly while gently holding down the brake (and letting the car complain about both pedals being pressed). It's a procedure that takes 2 minutes and ensure that when I leave for work the next day I don't have to hear that nasty cracking sound caused by rusty brake discs getting stuck to the brake shoes.

Does the car actually brake and apply power? I thought with that warning it would always ignore the accelerator input. Or is that only at high speed?
 

dmd2005

Active Member
Oct 5, 2015
1,196
1,051
Abbotsford, BC, Canada
  • Informative
Reactions: Ames

brucet999

Active Member
Mar 12, 2015
2,696
1,569
Huntington Beach, CA
It can happen with any car which uses the rear pads to act as a parking brake.

I have had problems like this with several BMWs over the years so with any manual car I just leave it in gear and don't use the handbrake any more for parking.

The trouble with the Model 3 is that it applies the parking brake itself and you can't disengage it when you're out of the car unless you use tow mode, but that's not going to be an option for a 10 day trip!

Just make sure the brakes are completely dry in future. Go for a drive before you park it up and use the brakes rather than regen so you get a little heat into them.
What actually sticks? Steel discs, non-metallic pads, unless they are freezing, I don't understand how they stick.
 

Buttybach

Member
Sep 30, 2019
35
22
Hampshire, Uk
A rust film forms on the bare steel disc..if you live near the sea on a windy spray-filled day you can see it form within an hour or so. Brown rust instead of shiny steel disc. The rust must act like a weak glue around the pads if they are pressed against the disc.
 

mswlogo

Well-Known Member
Aug 27, 2018
6,157
5,317
MA, NH
After washing I’ve been driving around the block like a mad man and slamming on the brakes on every car for the last 3 decades.

With bigger pads on P+ brakes they probably seize better than average ;)
 

boriszima

Member
Jul 12, 2018
676
335
Los Angeles
First time I ever hear about waging and driving. I wash my model 3 once every 2-3 months and never had that problem. Maybe because I don’t spray water on rotors and brakes? Now illl be more concerned to make sure it’s dry.
 

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