While painting calipers on a 3, the drivers side, rear piston pushed itself completely out of the caliper (the car kept engaging the eBrake) I removed the dust boot, thinking that I could install it once the piston was twisted back in, which didnt work. So I'm now trying to pull the piston out again, however, all the brake fluid has leaked out and the piston won't twist out.
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Rear caliper piston fell apart
- Thread starter TSSdetailing
- Start date
timk225
Active Member
Should have left it alone, the Tesla warranty would have covered it. You don't need to remove the caliper to paint it. Open your wallet WIDE now for Tesla replacement parts!!!
How did you join 3+ years ago and have only 3 posts?
How did you join 3+ years ago and have only 3 posts?
silentsnow31802
Member
Might want to post this sort of thing under a different name. Maybe not a company? No offense but it sounds to me that you should not take your car to TSS Detailing to have the calipers done. This is not a customer car is it?
Daniel in SD
(supervised)
Note to self: Disable e-brake if I every remove rear caliper.
On a related note it would be nice if Tesla would release a service manual like every other car company.
Put car in tow mode.
I've never worked on rear brakes with an electronic parking brake. I would suggest getting a service manual for another car that has the same design. Tesla does not make its own brakes.
Bleed brake system
Pray that everything works because otherwise you might be waiting months for a new rear brake assembly.
On a related note it would be nice if Tesla would release a service manual like every other car company.
Put car in tow mode.
I've never worked on rear brakes with an electronic parking brake. I would suggest getting a service manual for another car that has the same design. Tesla does not make its own brakes.
Bleed brake system
Pray that everything works because otherwise you might be waiting months for a new rear brake assembly.
I did put it in tow mode, however after 20 minutes it engaged the ebrake because Tesla's think for themselves, ****ing cyberdine!!
Should have disconnected the 12 volt battery. Sounds like the car thinks the parking brake is fully extended. Which means the car won’t attenpt to extend the piston again.
Time to call tesla service and pay them for their services. They may either tell you to replace the rear caliper, or they may allow you to bleed the system and perform the relearn procedure for the parking brake.
(I doubt however, they will touch the calipers if you painted them)
Time to call tesla service and pay them for their services. They may either tell you to replace the rear caliper, or they may allow you to bleed the system and perform the relearn procedure for the parking brake.
(I doubt however, they will touch the calipers if you painted them)
Should’ve opened the brake fluid reservoir and try to push back in. If that didn’t work crack caliper bleeder valve and drain the fluid.
But sounds like now you have the piston stuck in the caliper with out the dust boot?
Maybe remove the caliper completely, use compress air into the brake fluid inlet and see if you can blow the piston back out. (Dunno if that will still work without the boot).
If that still doesn’t work... just remove the whole caliper and take it to an indy brake mechanic. Maybe they can fingure it out or if it needs a rebuild... I bet that caliper is the same as other cars. Remember the brakes are made by Brembo on the Model3.
But sounds like now you have the piston stuck in the caliper with out the dust boot?
Maybe remove the caliper completely, use compress air into the brake fluid inlet and see if you can blow the piston back out. (Dunno if that will still work without the boot).
If that still doesn’t work... just remove the whole caliper and take it to an indy brake mechanic. Maybe they can fingure it out or if it needs a rebuild... I bet that caliper is the same as other cars. Remember the brakes are made by Brembo on the Model3.
Jedi2155
Model 3 has Arrived.
This had been reported here:
Neutral/Tow Mode | Tesla
Its meant for getting on the flatbed truck only, and it was a timer so you don't accidentally move the car too long with it. Moving the car without it being on will damage the rear drive motor due to it not having a place to put all the energy being generated (permanent magnets).
Lesson here is....don’t paint your calipers if you don’t know how to safely take it off without screwing it up.
I did both of those (cap off, bleeder out). The piston doesnt simply push in, it has to be spun and pushed simultaneously.
Yes, dust boot is off, piston is back in, now I'm trying to get the boot back in to the ring OR pull the piston out and try all over again. However, if I twist the piston counter clockwise, it doesnt actually come out.
But yes, I'm with you, I'm conceding to have a ranger arrive and repair.
Where is that battery? I wasn't aware of one. But yes, if I can stop the car from freaking out, that might help
voip-ninja
Give me some sugar baby
I'm the customer and we all make mistakes. Jaison was upfront with the problem and called me immediately and we're working together with Tesla service to get it fixed correctly. Called Tesla service today and while they are busy they are working to get someone there as soon as they can.
Hi friends- you can unplug the electronic e-brake right at the caliper without causing any issues. This will prevent this unfortunate occurrence happening to anyone else. The Model 3 auto-clears any trouble codes/warning lights when it senses they are resolved.
YES! so the tesla ranger was a great help. He showed me where the ebrake can be unplugged. He reinstalled the dustboot, retracted the piston and helped bleed the system. I took the car for a drive and the pedal response is good. So to end on a good note, here are photos of the finished product:
Phone support said do not unplug this. His reasons sounded a little wild but teslas are different animalsUmm. All Tesla’s to date have a 12V.
We have done it many times without issue, but it's always safe to listen to the people who made the car. Glad it all worked out!
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