Welcome to Tesla Motors Club
Discuss Tesla's Model S, Model 3, Model X, Model Y, Cybertruck, Roadster and More.
Register

Power braking assist reduced

sho12345678

Member
Jun 27, 2019
37
14
Midlands
Some good news - less than 24 hours of having my car, the service centre called me to say it was ready for collection.

The iBoost was to blame and was replaced:

Replaced Ibooster
Correction: Electromechanical Brake Booster Assembly (Remove &
Replace) (Add Brake Fluid 1060099-00A if Needed)
Parts Replaced or Added
Part Quantity
BRAKE FLUID DOW SERVICE 1 QT(1060099-00-A) 1.0
BRAKE BOOSTER AND MASTER CYL ASSY RHD
(1044672-00-D)
1.0

Lucky that the part was in stock! Also this is consistent with the other threads linked and mentioned.

Overall a good first experience with Tesla service, but I hope others don't suffer from the iBoost this winter.
 
  • Like
Reactions: VanillaAir_UK

roamer_0

New Member
Feb 26, 2021
1
0
Canada
Some good news - less than 24 hours of having my car, the service centre called me to say it was ready for collection.

The iBoost was to blame and was replaced:

Replaced Ibooster
Correction: Electromechanical Brake Booster Assembly (Remove &
Replace) (Add Brake Fluid 1060099-00A if Needed)
Parts Replaced or Added
Part Quantity
BRAKE FLUID DOW SERVICE 1 QT(1060099-00-A) 1.0
BRAKE BOOSTER AND MASTER CYL ASSY RHD
(1044672-00-D)
1.0

Lucky that the part was in stock! Also this is consistent with the other threads linked and mentioned.

Overall a good first experience with Tesla service, but I hope others don't suffer from the iBoost this winter.


I got the exact problem with my Model 3. To make it worse, I didn't warm up the battery so the regen is zero. I had to pressed the brake pedal really hard. It was very scary. I can't imagine what would happen if my wife was driving.

Now my Tesla model 3 is at SC waiting for parts.

So what on earth caused the problem? Water ingress? Quality issue with ibooster? I really want to know that to make me feel a little bit that they can fix it once for all.
 

Electric Dream

Pilots the Millennium Milkfloat
Jul 21, 2016
1,683
2,759
UK
It's an electro-mechanical device. It can go wrong for several reasons. But the car won't lose braking completely if it does, so be prepared to press the brake pedal harder if it does.
 

nosna21

Member
Apr 15, 2021
6
6
Milpitas, CA
FWIW, this exact same failure happened to me as well, on a brand new 2021 Model Y LR with less than 250 miles (delivered Mar 31). I am at California so there was no snow or rain; temperature was around 15C.

Car is currently at service center waiting for the replacement iBoost.

I've posted my experience here: Brake booster failure on brand new Model Y

It seems the iBoost failure on Teslas is more prevalent than it should be? It's a little concerning..
 

About Us

Formed in 2006, Tesla Motors Club (TMC) was the first independent online Tesla community. Today it remains the largest and most dynamic community of Tesla enthusiasts. Learn more.

Do you value your experience at TMC? Consider becoming a Supporting Member of Tesla Motors Club. As a thank you for your contribution, you'll get nearly no ads in the Community and Groups sections. Additional perks are available depending on the level of contribution. Please visit the Account Upgrades page for more details.


SUPPORT TMC
Top