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

[Twinfan]

So two days after picking up my car from my OPC after having a couple of minor things sorted, two under warranty, I've now got the "PADM disabled" warning triangle on my multi instrument screen. This is related to the adaptive gearbox mountings fitted to all 9x1 series onwards cars with Sports Chrono.

I managed to avoid the problem on my 981 GTS in 14,000m but in just under 4,000m on my 718 GT4 it's appeared (after an awesome traffic light I might add ). I'm assuming the same part is used across the Cayster and 911 platforms and as it's still occurring on 992 and 982 models then Porsche don't appear to have changed the part in any way in the last 10 years. *sigh*

Anyhow, this is just an FYI for anyone with a 718 Cayman to let them know that the issue isn't exclusive to 981 series cars...

 

[Motorhead]

That’s very annoying Dave. You’d have thought that Porsche should have got to the bottom of the problem with their supplier after all these years … it must be costing a fair bit in warranty claims since I believe that replacement is the only option available?

More to the point, what happens when the car’s out of factory warranty and owners don’t take-up the extended warranty option?

Jeff

 

[ralphmusic]

Might the LWFW be an issue?

 

[Kaiser981]

That’s very annoying Dave. You’d have thought that Porsche should have got to the bottom of the problem with their supplier after all these years … it must be costing a fair bit in warranty claims since I believe that replacement is the only option available?

More to the point, what happens when the car’s out of factory warranty and owners don’t take-up the extended warranty option?

Jeff

Got a quote last week for £890.00 ex VAT to repair/replace the left dynamic mount on my 981S, got a second quote for just under £800.00 for the part alone ex VAT

 

[Twinfan]

It's certainly annoying, Jeff, and thanks for the prices Paul. I'd read it was around £1000 for the part and around £1500 for the whole job.

As for whether the LWFW has caused the problem, I've no idea Ralph. This is a very common part to fail and I'm not sure anyone knows why they do?

 

[Motorhead]

Just to muddy the waters, the 991 GT3s have the dynamic mounts and - I think - a DMF, although I seem to recall a LWF was an RS option?

Jeff

 

[TDT]

Just to muddy the waters, the 991 GT3s have the dynamic mounts and - I think - a DMF, although I seem to recall a LWF was an RS option?

Jeff

Single Mass Flywheel was only available as an option for 991 R.

AP directly advised against fitting LWFW to 991.2 Manual GT3

I don’t know if LWFW is a direct contributor here or if having the tranny out and then back in could have triggered something. I’ve personally stayed away from this particular mod as I’ve heard stories about it before: upsetting engine harmonics, playing havoc with systems & excessive gear lash, which for me were enough to dissuade from doing this aftermarket, despite the response benefits it offers. I haven’t seen enough positive outcomes yet. Would be unfortunate if having a play with this stuff resulted in warranty claim being denied etc.

My own concerns aside hopefully OPC arent too picky and the relationship with them helps smooth a way for a resolution, as it is a known issue anyway.

Hoping it gets sorted.

 

[Twinfan]

The LWFW was fitted circa 2000miles ago so I'd be surprised if it was anything to do with the actual fitment.

As you say T it was only an option on the 991.1 series 911R plus standard on 996 and 997 series RSs, and obviously those cars were designed around them. The GT4 runs a different crank to the GT3 and as standard is also fitted with a vibration damper pulley, presumably to take care of possible harmonic vibrations along the crank so it didn't require a crank pulley change like the non-RS GT3's needed if you were fitting the LWFW from an equivalent RS.

If the part has failed, and fails on a wide range of standard cars of different ages, I think it would be hard to say for sure what the cause was. I'll see what my OPC say []

 

[Twinfan]

Booked in for next Monday to get the PADM issue adressed, if the part has gone I'm hoping I can get a replacement fairly quickly but I'm assuming it may have to come from Germany and potentially subject to transportation delays. I also hope they're in stock!

 

[OliR]

Are you going to be a good boy and tell them about the LWFW? Bit late now but I had a good experience with Stockport Porsche when I had to get the tracker reset, so can recommend them, really impressive new dealership, really big too!

Good luck anyway, hopefully it gets sorted quickly.

 

[Kaiser981]

Also just booked in for PADM replacement on my 981. I hope I get my part before you Twinfan!

(only kidding, I have booked the 23rd of April for my repair)

 

[Twinfan]

I'm going to see what they say when they examine the car, but I'm certainly not going to lie to them if they ask me any questions. When my car was in last week for a PSE issue they asked if the exhaust had ever been off the car and I of course said yes.

As I posted earlier, given how often these electrical parts fail I think if that's what's happened both Porsche and I would have a hard time proving exactly what did or didn't cause the fault. Reading around and based on the chat I had with the Service Advisor my experience is certainly matching that of others - "spirited" driving triggering the message. We'll see what happens next week I guess!

Good luck with your repair, Kaiser981 []

 

[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

 

[Kaiser981]

The "spirited driving" comment is interesting. I changed from 3rd to 2nd to do an overtaking maneuver and the fault popped up on the dash. God forbid your drive your sports car in a spirited manner.

 

[Motorhead]

Paul,

The expression “not fit for service” springs to mind! []

Jeff

 

[Twinfan]

The "spirited driving" comment is interesting. I changed from 3rd to 2nd to do an overtaking maneuver and the fault popped up on the dash. God forbid your drive your sports car in a spirited manner.

Exactly what the Service Advisor said! I pointed out it was triggered by an "enthusiastic" traffic light start and she did concede that it was a sports car and you should be able to do that. I also highlighted the fact that my car is a GT4, designed to be used on track days......

 

[Kaiser981]

Paul,

The expression “not fit for service” springs to mind! []

Jeff

I guess from my point of view it is an 8 year old car, I should expect some issues, but I could certainly do with a little bit of a break from buying parts and paying for labour. Maybe I need to drive in a less spirited manner !

It certainly doesn't seem to be the best system Porsche have ever included on their cars.

 

[Twinfan]

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!

 

[Kaiser981]

The "spirited driving" comment is interesting. I changed from 3rd to 2nd to do an overtaking maneuver and the fault popped up on the dash. God forbid your drive your sports car in a spirited manner.

Exactly what the Service Advisor said! I pointed out it was triggered by an "enthusiastic" traffic light start and she did concede that it was a sports car and you should be able to do that. I also highlighted the fact that my car is a GT4, designed to be used on track days......

Is "enthusiastic traffic light start" code for Launch Control ?

 

[Twinfan]

Nope - no launch control on a manual GT4!

Just a good old fashioned heavy right foot...