My Turbo S finally brakes like I imagined it would, after the brake hose recall fix and 85,000 kms. of uneasy braking feel.

[Pozuelo]

Now it feels like a great sportscar after finally being confident when braking. After commending my dealer and asking them what was involved, they confirmed brake hoses and fluid was replaced (obviously any air was bled) and a software update was performed as well. So it is anybody’s guess what fixed a sometimes mushy feel, sometimes worryingly long pedal, generally unreassuring braking feedback and performance. Possibly a combination of the fixes… I have not driven any other Taycan’s long enough to judge whether my car was worse or not, than the rest. Even all my mainstream cars and more recent AMG’s and the exceptional 1990 BMW M5 E34 of course where much better… until last week when finally the confidence is back. Now I really cannot tell when it is using regeneration or mechanical brakes, but it has great feel and braking power like it should with the huge ceramic brakes it sports.

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[wmras]

Now it feels like a great sportscar after finally being confident when braking. After commending my dealer and asking them what was involved, they confirmed brake hoses and fluid was replaced (obviously any air was bled) and a software update was performed as well. So, it is anybody’s guess what fixed a sometimes-mushy feel, sometimes worryingly long pedal, generally unreassuringly braking feedback and performance. Possibly a combination of the fixes… I have not driven any other Taycan’s long enough to judge whether my car was worse or not, than the rest. Even all my mainstream cars and more recent AMG’s and the exceptional 1990 BMW M5 E34 of course where much better… until last week when finally, the confidence is back. Now I really cannot tell when it is using regeneration or mechanical brakes, but it has great feel and braking power like it should with the huge ceramic brakes it sports.

Our 2020 Taycan Turbo S has always felt the way you just described, and I have been concerned the brake recall would destroy the Porsche sport-car feel. It is good to know it should not. Our brakes have been serviced twice (every 2 years) and worked beautifully before and after service (4+ years old and 22,000 miles).

Drove a Turbo S at PEC Atlanta with terrible mushy brakes and the Porsche staff thought they were normal and fine. They also suggested working on my braking technique!

 

[mjoe]

That explains why my car behaves really bad in hard short drives (250km/h -> 80 km/h) 800m after start -> Autobahn..

the break is really wobbly in this scenario with PCSB (2-tier break option..?). Regen on power meter shows no electric breaking.

I really hope that the break fix will make my car better in this regards..

On longer sporty drives I never have these issues. But cold and hard breaking really shows the issue..

I am on hold for my appointment as the break fix is not on stock in Germany apparently…

 

[chun]

It was the software update.

 

[DerekS]

I wonder if this new behavior uses more physical brakes and less regen?

That would reduce range...and pad/rotor life.

 

[Tooney]

Possible that the software update was campaign WPK0 (PSM stability) for selected vehicles.
https://www.taycanforum.com/forum/t...ulic-braking-april-23-2024.19788/#post-304672
Porsche recommends it be applied for selected vehicles after the brake line recall.

 

[f1eng]

It was the software update.

I'd be surprised. The software update didn't change the brake feel on mine at all, and I can't think of any mechanism by which it could eliminate a "mushy" or soft pedal.
99.9% of the time a mushy pedal is a bleed problem and with the hybrid brakes on a Taycan there is a specific procedure to get all the air out. There have been multiple reports of mushy brakes being fixed by bleeding properly.

 

[chun]

I'd be surprised. The software update didn't change the brake feel on mine at all, and I can't think of any mechanism by which it could eliminate a "mushy" or soft pedal.
99.9% of the time a mushy pedal is a bleed problem and with the hybrid brakes on a Taycan there is a specific procedure to get all the air out. There have been multiple reports of mushy brakes being fixed by bleeding properly.

There was a recall for 400ish of so cars, to update the software. But a lot more need it, even if not listed for the recall. I just took mine there and asked they fix it, they also mentioned software will be updated

 

[GreenHornet]

The PSM update is done on all Taycans when they replace the breakhoses

 

[SergeyIndy]

I wonder if this new behavior uses more physical brakes and less regen?

That would reduce range...and pad/rotor life.

The behavior post PSM update seems to be a brake logic change for smoother hand off, that could mean more physical brake use, which will not be hard to tell after the update has been applied. I am in the same boat, no parts (hoses) available until possibly later in the fall. Currently, I think the brakes work as designed by using only physical brakes (distinctive sound and no regen green meter) for a little while with a pedal clunk on release, then the regen logic is applied when braking with no pedal clunk. I will ask about the clunk unless there is a TSB about it somewhere for me to show the dealer.

 

[Tooney]

The PSM update is done on all Taycans when they replace the breakhoses

In USA campaign WPK0/PSM update is for 3300+ specified VINS.
https://static.nhtsa.gov/odi/tsbs/2024/MC-10254160-0001.pdf

 

[GreenHornet]

In USA campaign WPK0/PSM update is for 3300+ specified VINS.
https://static.nhtsa.gov/odi/tsbs/2024/MC-10254160-0001.pdf

That is true. But they do the update on all cars.

 

[f1eng]

There was a recall for 400ish of so cars, to update the software. But a lot more need it, even if not listed for the recall. I just took mine there and asked they fix it, they also mentioned software will be updated

As I wrote, my software was updated and changed nothing on the brake feel.
Whilst not impossible bleeding the brakes properly will have a bigger influence on pedal travel and feel than software.

 

[chun]

As I wrote, my software was updated and changed nothing on the brake feel.
Whilst not impossible bleeding the brakes properly will have a bigger influence on pedal travel and feel than software.

My brakes have been bled several times since 2020; and brakes are very much still mushy. No PSM software update until now

 

[f1eng]

My brakes have been bled several times since 2020; and brakes are very much still mushy. No PSM software update until now

Sounds like the garage you used haven't used the correct procedure. It was a common problem solved by using an additional bleeding procedure over conventional non-hybrid brakes. It is specified by Porsche for the taycan system and has been discussed here in the past.
It has never been a problem for me so I don't know the details.

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