PADM disabled message on my 718 GT4 - it seems Porsche still haven't sorted this out!

[Motorhead]

It’s just a jazzed-up hydro-mount which for the majority of your driving won’t be activated Dave, so I can’t really see the LWF connection myself, and there appear to be regular failures with the standard DMF sufficient to indicate that it’s a generic problem which is independent of engine if it’s still happening on the F-4 and F-6 turbo-engine cars too.

Jeff

Agreed Jeff. I think you could possibly argue a little more vibration may be present with the LWFW, not that I've noticed any whatsoever, but I would counter that by saying regular track use with the car bouncing off the 8k rev limit all the time would be worse!

Quite so Dave. I assume that the problem is associated with failure of the electronic activation of the mount rather than actual failure of the mount itself, which would indicate that the mount’s electro-mechanicals aren’t robust enough to cope with the “spirited driving” for which they’re designed. A contradiction in terms?

Jeff

 

[Kaiser981]

It’s just a jazzed-up hydro-mount which for the majority of your driving won’t be activated Dave, so I can’t really see the LWF connection myself, and there appear to be regular failures with the standard DMF sufficient to indicate that it’s a generic problem which is independent of engine if it’s still happening on the F-4 and F-6 turbo-engine cars too.

Jeff

Agreed Jeff. I think you could possibly argue a little more vibration may be present with the LWFW, not that I've noticed any whatsoever, but I would counter that by saying regular track use with the car bouncing off the 8k rev limit all the time would be worse!

Quite so Dave. I assume that the problem is associated with failure of the electronic activation of the mount rather than actual failure of the mount itself, which would indicate that the mount’s electro-mechanicals aren’t robust enough to cope with the “spirited driving” for which they’re designed. A contradiction in terms?

Jeff

I was told exactly this by my OPC. The mount is completely fine, the PADM ECU (located under the carpet RHS in the boot) just cannot get the signal back that it needs from the electronic component within the mount to allow the fault to clear.

 

[Twinfan]

Yep, I think there's a sensor in there that fails or an internal connection shorts out so the fault occurs. It came on immediately after a burst of acceleration so I assume the internals just aren't robust enough on some units and they break after a short, sharp shock. Maybe tolerances are an issue?

 

[Kaiser981]

It is a pity that the electronic module cannot be replaced separately from the mount

 

[Twinfan]

I think it needs the coil inside it to work as designed, so if that shorts you have no option as it's all integral to the unit.

It seems to be one of those things that can just happen at any time without warning.

 

[Motorhead]

At around £1k a shot the unit is significantly more expensive than a standard hydro-mount, although Porsche will only be paying a fraction of that from the supplier.

I wonder what percentage of cars are fitted with PADM? Even so it must be flagged-up on warranty claims sufficient for Porsche to be having a conversation with its supplier about the durability of the electronic components in their mount.

Since it’s an electronic problem at least the car’s still drivable, and I assume that the activation is prevented to avoid an imbalance between the two mounts.

Jeff

 

[Kaiser981]

I am not noticing any difference apart from a yellow triangle on my display. Drives just fine, even under spirited conditions. Car is off getting some paint correction and a ceramic coat at the moment so for the next week it is off the road and under cover. Happily my detailer lives on the Causeway Coastal Route so its a pleasant drive, normally with plenty of motorbikes for company, there and back.

 

[Twinfan]

White triangle/warning on mine rather than yellow and it's saying PADM is disabled.

The system is fitted to every car with Sports Chrono, Jeff.

 

[Kaiser981]

My message is PADM fault, still possible to drive carefully. I have mostly been following that instruction [8D]

 

[Motorhead]

The system is fitted to every car with Sports Chrono, Jeff.

Ta Dave. That must be quite a lot of cars then … all the Porsche GT cars including GTS plus optioned cars like Paul’s.

Jeff

 

[Twinfan]

Yep, hence why the issue is so common []

 

[AndrewCS]

Ta Dave. That must be quite a lot of cars then … all the Porsche GT cars including GTS plus optioned cars like Paul’s.

Jeff

Not mine ...

 

[Kaiser981]

For my car with PDK I love how the car drives is sport plus, feels much more alive and I wouldn't be as happy with the car without this mode or option. It's just a pity that this part is not able to be optioned out or at least made much more reliable and robust.

 

[Motorhead]

Ta Dave. That must be quite a lot of cars then … all the Porsche GT cars including GTS plus optioned cars like Paul’s.

Jeff

Not mine ...

Are you sure Andrew? I’m open to correction but I thought that it was a standard fitment on the 981 GT4?

Jeff

 

[Twinfan]

Ta Dave. That must be quite a lot of cars then … all the Porsche GT cars including GTS plus optioned cars like Paul’s.

Jeff

Not mine ...

Are you sure Andrew? I’m open to correction but I thought that it was a standard fitment on the 981 GT4?

Jeff

Yep, they're on the 981 GT4 and any 9x1/9x2 car with Sports Chrono either standard or as an option. Note that on the GT3 and GT4 they're standard fitment even if you don't have the Sport Chrono option. On the GT4 it only gives you the clock and stopwatch, the actual hardware is standard fitment.

 

[Motorhead]

Slightly off-topic but Sport Chrono on all the 981-series cars (including the GT4) gave you the clock whereas it’s a cost option on the 718 GT4 but standard on the Spyder and 4.0 GTS cars. So the most track-oriented car - where the clock is most likely to be of benefit - doesn’t have it as standard? Figure that out!

Jeff

 

[AndrewCS]

Mmmmm ... I was going by the manual and the fact that I have no stopwatch

Manual : PADM on vehicles with Sports Chrono

 

[Kaiser981]

https://newsroom.porsche.com/en/press-kits/718-spyder-cayman-gt4/fahrwerk-und-regelsysteme.html

Seems they all have PADM

 

[Twinfan]

Yup, 981 GT4 was the same []

 

[AndrewCS]

[:-] ... My manual reference was taken from www.Manualslib.com which having checked the one in the car is different !

... and as advised above I do have PADM without Chrono

Thank you