Active drivetrain mount failure x 3 in 6000 miles

[Twinfan]

James McScotty said:

They are trying to sell me a new 4.0 GTS, btw. That, I assume, has the same chassis flaw. Hmmmm.

Yes it will, my 718 GT4 had one replaced a couple of weeks ago. Faults occur on 991 and 992 911s as well, as I said in my post earlier.

When the parts fail, they default to to the stiffer setting. I guess, in theory, if one goes in the future you could unplug them both and code out the fault light?

[James McScotty]

Twinfan said:

Yes it will, my 718 GT4 had one replaced a couple of weeks ago. Faults occur on 991 and 992 911s as well, as I said in my post earlier.

When the parts fail, they default to to the stiffer setting. I guess, in theory, if one goes in the future you could unplug them both and code out the fault light?

I put that to the chap at the OPC, he thought it wasn't an option.

I've requested a frank, open and honest discussion with someone about the reliability of this technology when I collect tomorrow a.m.

[Twinfan]

James McScotty said:

I've requested a frank, open and honest discussion with someone about the reliability of this technology when I collect tomorrow a.m.

Awesome, please can you report back? I'm going to be running my car outside of the extended warranty system due to modifications so I'm very interested in what options I mihght have in the future should (when?!) either of mine fail...

[Fnumber1user]

Would these be covered under warranty if you ran an extended warranty? - if so might be worth (frustratingly) considering it just for these items alone?

[Twinfan]

Fnumber1user said:

Would these be covered under warranty if you ran an extended warranty? - if so might be worth (frustratingly) considering it just for these items alone?

Yes, they're covered under the factory and extended warranties.

[Fnumber1user]

Twinfan said:

Yes, they're covered under the factory and extended warranties.

Many thanks.

[Twinfan]

Fnumber1user said:

Many thanks.

My pleasure

[Pope]

James McScotty said:

Orangecurry said:

You must be able to source the part separately and get a proper mechanic to fit, for reasonable cost?

Local P specialist quoted a smidge under £1200. A large chunk is labour, it's engine out time. Since it's already at the OPC, I might as well get them to do it, for a £60 difference after the goodwill.

I'm pretty P-ed off.

PADM on 981 are on the transmission - 'engine out' not required (actual swap time is less than two hours for both). The rear axle supports need to come out for access- meaning a geo check and adjust is additionally required (an hour and a half if adjustments are required). Majority of the cost is the part(s).

[jimmy p]

Pope said:

PADM on 981 are on the transmission - 'engine out' not required (actual swap time is less than two hours for both). The rear axle supports need to come out for access- meaning a geo check and adjust is additionally required (an hour and a half if adjustments are required). Majority of the cost is the part(s).

Why are they failing so much particularly on gts models it appears??

[Twinfan]

jimmy p said:

Why are they failing so much particularly on gts models it appears??

They come with Sports Chrono, so GTS models and GT cars get them as standard. They're an option on other cars in the range. So the vast majority of cars out there with them will be GTSs.

Exactly why they fail, who knows, but it seems to be problem with an internal short of the wiring.

[Milnsey]

Surely Porsche should provide a goodwill gesture for this part for a few years due to high failure rate?
Similar to what they have done for Macan transfer boxes

[ClubsportStr]

Milnsey said:

Surely Porsche should provide a goodwill gesture for this part for a few years due to high failure rate?
Similar to what they have done for Macan transfer boxes

One failed on My 718 GTS after 2 years and 4500 miles OPC said they are a common fault but was under the impression Porsche had now modified the part !!!

[jjr1]

My 981 Boxster S had both drive mounts fail in my 4 years of ownership. They were covered under warranty but I was hacked off with it by then so sold soon after.

[James McScotty]

Two of my three active mount failures were short-circuits, the other was "undetermined".

The OPC did not acknowledge that this is a common fault. They said they'd contact Porsche GB again to see what more, if anything, they could chip-in toward the cost.

They claim the part has been redesigned, and I was told that 718s are not affected. They are trying to sell me a 718 4.0L.

[Twinfan]

James McScotty said:

They claim the part has been redesigned, and I was told that 718s are not affected. They are trying to sell me a 718 4.0L.

Well they're lying about 718s!

[WG]

They certainly are lying ! Both myself and a friend have both had BOTH units changed under warranty. In my case with 7000 miles on the clock and 4000 for my friend I believe !

[Twinfan]

Yep, <4000m and 12 months from new for mine.

[ChrisW.]

This feels like yet another reason to extend the warranty, though in theory the EU dictate that a known issue must be covered by warranty up to 5 years ...

[Pope]

Twinfan said:

James McScotty said:

They claim the part has been redesigned, and I was told that 718s are not affected. They are trying to sell me a 718 4.0L.

Well they're lying about 718s!

718 have active mounts too; but again, on the transmission. The 'engine mounts' are different to 981 (mounted either side to the cam cover/heads) rather than centrally and have a vacuum control element to them. So it really depends what question you are asking.

If the question is transmission mount related - they are the same.

There have been revisions to the part - the majority of issues I have seen have been sensor related within the mount; going open circuit. Later mounts seem to be better. Water ingress into the part was a cause mentioned at some point.

3 mounts in <6k seems excessive - or have I misunderstood? I just reread and can't work it out - what is the total mileage of the car?

Can you associate the failure to your particular use of the car? Thinking extremes - I don't mean does it fail when you drive it; rather, does every journey start and end with a particularly rough bit of road/do you live in a particularly wet area; drive through a ford even? Do you live by the coast? Is the car in a dehumidified garage where the other extreme could occur? It is a very unlucky situation is all I'm thinking - some goodwill from the dealer could be likely if they assessed the whole case.

Plenty of cars out there with the option that aren't failing (or as often). Genuinely interested in 'why' for what it's worth. Hope it works out.

Edited by Pope on Saturday 17th April 20:47

[James McScotty]

Pope said:

718 have active mounts too; but again, on the transmission. The 'engine mounts' are different to 981 (mounted either side to the cam cover/heads) rather than centrally and have a vacuum control element to them. So it really depends what question you are asking.

If the question is transmission mount related - they are the same.

There have been revisions to the part - the majority of issues I have seen have been sensor related within the mount; going open circuit. Later mounts seem to be better. Water ingress into the part was a cause mentioned at some point.

3 mounts in <6k seems excessive - or have I misunderstood? I just reread and can't work it out - what is the total mileage of the car?

Can you associate the failure to your particular use of the car? Thinking extremes - I don't mean does it fail when you drive it; rather, does every journey start and end with a particularly rough bit of road/do you live in a particularly wet area; drive through a ford even? Do you live by the coast? Is the car in a dehumidified garage where the other extreme could occur? It is a very unlucky situation is all I'm thinking - some goodwill from the dealer could be likely if they assessed the whole case.

Plenty of cars out there with the option that aren't failing (or as often). Genuinely interested in 'why' for what it's worth. Hope it works out.

Hi, and thanks for the good wishes.

Total mileage is now a smidge over 40,300 miles.

The first mount (offside) failed just over two years ago (26 months, with a 24 month warranty) at about 34,000, the second (nearside) a few months later, and the third (offside) about a fortnight ago.

The car has not been tracked by me, it's a road car. I live in a relatively dry part of the UK (East midlands bordering almost on the Fens) and the car is parked offroad on my level driveway. It's not been in any collisions. Two of the failures were electrical in nature.