ARB0 recall and Symptom-based workshop manual Service 146/21ENU 4652

[gtm]

I have bookmarked the WPK0 and noted to print it.

As for my Taycan, it is still at the dealership. I was wrong, the SA did not reach out to me yesterday or the day before. Today is a holiday so I am not expecting to hear back from them.

Monday will be the earliest I may hear back. I researched online the legality of them retuning the vehicle with a safety defect. The US doesn't have any such laws like Norway but the general consensus of material is that if the manufacturer has issues a "stop driving" order to consumers, then the dealer would be in a rather compromised legal position returning the vehicle without effecting a repair. I don't see that Porsche has done this though they have issued a "stop" order for deliveries of vehicles and a "stop" order for service loaners which is not dissimilar to a "stop" order to the consumer.

If it warrants pulling vehicles from the loaner fleet and not selling vehicles under the campaign then it stands to reason I shouldn't be driving one either.

Your car is a couple of years older than mine so possibly has had some wear on the brake hoses but when I put my car on a lift and examined the original brake hoses there wasn't a single crack or indication of any stress. Anecdotal, but the problem seems to pop up with cars driven in the low position and which make a lot of sharp turns. If there is no indication of stress/cracking on your hoses your car should be perfectly safe to drive until hoses can be sourced. Or play it safe and insist on a loaner until they get the hoses. Might motivate them a little if you are in their car in the interim.

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[ZenicaNC]

Your car is a couple of years older than mine so possibly has had some wear on the brake hoses but when I put my car on a lift and examined the original brake hoses there wasn't a single crack or indication of any stress. Anecdotal, but the problem seems to pop up with cars driven in the low position and which make a lot of sharp turns. If there is no indication of stress/cracking on your hoses your car should be perfectly safe to drive until hoses can be sourced. Or play it safe and insist on a loaner until they get the hoses. Might motivate them a little if you are in their car in the interim.

In all likelihood, the odds are I'd be fine, especially since I drive gingerly because I have never had confidence in the brakes to drive spiritedly unless I know I have lots of room to stop. I do prefer the lowest driving position so I do tend to opt for that setting. The condition of my rear ties was a direct result of this!

I would stop doing that, now that I know until the hoses are replaced.

I have been in a loaner these past few weeks. The Macan is nice but not a Taycan and not as comfortable as the Cayenne, even with the massage seats, which I love. *would like to add them to the Taycan!

I watched the video sent to me again and the tech blundered.

In it, he says he replaced the PCM at the behest of Porsche due to the myriad of XM and display issues. He then said I have to reinstall my XM account. Then he said he didn't experience any XM issues since replacing the PCM. I'm wondering, how can he test the XM without an active XM account??

 

[NYLaw]

As others have said, ARB0 also includes reprogramming the PSM to change the behaviour of the transition from recuperative braking to mechanical braking see screenshot

What is WPK05 campaign? is that different from WPK0, or indeed WPKO6(which i have on my works schedule)? i have problems with my brake at v low speeds, eg <5miles/hour, but unfortunately this only occurs intermittently & therefore not 'reproducible' whenever I bring it in.

 

[Speuk]

I

What is WPK05 campaign? is that different from WPK0, or indeed WPKO6(which i have on my works schedule)? i have problems with my brake at v low speeds, eg <5miles/hour, but unfortunately this only occurs intermittently & therefore not 'reproducible' whenever I bring it in.

I think it is just a subset of WPK0 maybe different coding for different models or brake systems.

 

[gtm]

What is WPK05 campaign? is that different from WPK0, or indeed WPKO6(which i have on my works schedule)? i have problems with my brake at v low speeds, eg <5miles/hour, but unfortunately this only occurs intermittently & therefore not 'reproducible' whenever I bring it in.

Should be relatively easy to reproduce if it's the same as my car. Mechanical brakes are blended in at 7 mph and the regenerative braking stops at 3 mph. When stopping slowly and barely braking (like almost coasting up to a red light) the braking action ceases right at 3 mph and you have to depress the pedal an extra inch or so to restore any braking. The trick to reproducing it was very gradual braking. Normal stop and go or highway and the brakes didn't exhibit the problem. Hope this helps because it's scary when it does happen. WPK0 will solve the problem.

 

[NYLaw]

Should be relatively easy to reproduce if it's the same as my car. Mechanical brakes are blended in at 7 mph and the regenerative braking stops at 3 mph. When stopping slowly and barely braking (like almost coasting up to a red light) the braking action ceases right at 3 mph and you have to depress the pedal an extra inch or so to restore any braking. The trick to reproducing it was very gradual braking. Normal stop and go or highway and the brakes didn't exhibit the problem. Hope this helps because it's scary when it does happen. WPK0 will solve the problem.

Thank you both, gtm & Speuk
i'll try to show the service manager, Porsche East London - 3rd time lucky hopefully.

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