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991.2 - Turbocharger Replacement (Smoke)

Hi driver71,
Sorry I cannot send you the bulletin, but I can assure you it exists, speak to your local Porsche Service manager he will be aware of it.
Porsche a few years ago were giving goodwill on this repair, as its a known concern.
Dave
Cyclemotor1958
 
I have just had exactly the same on my Carrera 4S. 21000miles. Started seeing smoke on startup, but didnt think much of it. A couple of days ago on acceleration it turned into a cloud making machine. In the 24 mile journey to get it Porsche Leicester it used a litre of oil. Had to refil it twice on journey as refil oil came up twice on dash.
They have diagnosed it as a fracture of the intake pressure lines which is feeding oil straight into the intake. Luckily oil supply to the turbochargers were not affected. They are replacing intake pipes, pressure lines and turbocharger collection tanks for both turbos. It is an engine out job and big money. Thank goodness for the warranty. Going to be off the road for 2-3 weeks.
 
Hi driver71,

Sorry I can not send you the bulletin, but I can assure you it exists, if you speak to a Porsche Dealer service manager he can confirm its existence.
A few years ago I sent a customer with a 2017 991.2 with blue smoke on start up, to a local Porsche dealer.
He quoted them the bulletin number, and they gave him 80% contribution towards the repair.
Regards
Dave
Cyclemotor 1958
 
Thanks Dave. Luckily i have been reassured that it is all covered under the warranty. I am still quite surprised that it's occured at just 20K miles though.
I will enquire about the bulletin though.
 
my 2017 c2S has 31,000 miles and has just had both turbos replaced and all the associated pipe work.

was smoking on start up after being driven hard and sitting for a while. was all covered under warranty, but told it was a big/expensive job!

Would like to prevent any corrosion so interested in the spray grease options - question is where do I spray it?
 
I’d like to say long time observer, first time poster - but I’ve just recently joined after owenership of my 991.2 GTS after just less than a week from a main Porsche Dealer.

I must say, the service - both technical and customer service has been incredible. the whole experience of picking the car up, out of this world.

Before I continue, I am incredibly happy with my car, having come from an M140, the only way I can describe the 991 is that it isn’t clinical and has some kind of soul! Anyway, enough of the gush, it puts a smile on my face every time I drive it.

On an early morning, that was fairly dry I managed to put some boost through the turbo and change gears approaching 7000 a couple of times before I ran out of speed limit. Then approaching a roundabout carefully shifting down where the RPM wouldn’t exceed 5000rpm on downshifts. Third, down to second closing on the roundabout - huge plume of smoke out the back.

Ok gauges all good, oil press ok, around 3.5 bar reducing down to normal 2 bar, oil temp was of course 95 degrees (I always ensure up to temp before going above 2000rpm). I did a 180 to take a photo of the evidence for the dealer and then did a couple of runs to put my mind at rest. It performed absolutely fine. As it was dark it looked like a grey cloud.

I got to work, shut down and then cold started 5 hours later to blue smoke - which I was suspecting oil pooling in the turbo somewhere, or cylinders.

So I logged it with Porsche. They stated they found one of the turbochargers has failed and will be replaced. Good end result, the other one apparently is ok and they can’t change as a precaution, which I understand.

Anyone else had to replace their turbochargers?

its done 31,000 miles
In April 2022 I bought a used 991.2 Carrera 4 GTS from a Porsche Main dealer, it had only about 12,000 miles on the clock. Within the next week on both occasions when using the Sport Response button I had, like you, a huge cloud of smoke from the exhaust. When it happened the 2nd time I drove straight to the Porsche dealer and 'rejected' the car. As they knew me from previous purchases they agreed, with no problem, and refunded my money. I've since bought the same version of 911 from a different Porsche main dealer and had absolutely no issues having just returned from a second 2,500 mile road trip to to the Med.
 

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