[kmacuk]

Been a while since my last post as nothing to say, just enjoying the car, however a few weeks ago we started to feel some power dips when we hit around 5k rpm /(12-14psi boost pressure). More recently these got more noticeable and I could see the pressure changes on the boost gauge - it would drop from 14psi to 6/8psi and return then repeat with no change in throttle position. I have not seen any other 718 report on posts here or even on line so guess its unusual for Porsche.


Now I could replicate the issue I took it into the OPC on a Saturday morning and a tech came out with us same day (me driving) and identified (makes a change it actually showed the problem) it as a turbo fault, specfically an actuator failure (wastegate I guess?). He get us booked in for a 3 day visit there and then.

2 weeks later car in for repairs today, we had to wait for a car, ours was drivable so no issue waiting. We got a (900 mile new) Cayman Gentian, black wheel base as a courtesy car while they worked on ours. The diagnostics confirmed the turbo issue and today I had confirmation that the entire turbo unit has been replaced, will get back tomorrow – 3 days job done, not great it failed, but food service to resolve, which is what really counts.

Just thought I would post symptoms and fix process for others to be aware. Can’t fault the OPC and the warranty process was all very smooth.

Car just short of 1 year old (MY 2019) base.

 

[don]

Thanks for posting, you must be the first or one of the first suffering a 718 turbo failure. I'm assuming your car has very low mileage so must be a manufacturing fault. Unusual for turbos to fail so prematurely in this day and age.

 

[kmacuk]

Hi,
Car is a daily and has 11.5k miles on the clock, so not that low.

 

[UKG]

Hi kmacuk, my 2019 base 718 has also required a new turbo, last summer after about 9 months of ownership the power was just not there, from memory i think it slowly deteriorated so it was never totally obvious until it started sort of misfiring at around 4000 revs
For the record mine is also a daily driver 4 days a week, a regular 25 mile mostly motorway commute and in total around 1000 miles a month
The OPC were also really efficient and helpful with the warranty work though funnily enough they would not let me have the car back because there was still a fault showing with the cabin sound so I had to own up and tell them I had removed the Soundaktor fuse which they had to put back in lol

 

[MLJJ]

The OPC were also really efficient and helpful with the warranty work though funnily enough they would not let me have the car back because there was still a fault showing with the cabin sound so I had to own up and tell them I had removed the Soundaktor fuse which they had to put back in lol

That is a good thing to know. I take mine in next month for first oil change and will let them know upfront about the fuse removal so it doesn't protract the service.

 

[don]

So that's two blown turbos on base 718. You should really be getting around 150,000 to 200,000 miles on a turbo unless there is a manufacturing fault.

 

[Darren]

Been a while since my last post as nothing to say, just enjoying the car, however a few weeks ago we started to feel some power dips when we hit around 5k rpm /(12-14psi boost pressure). More recently these got more noticeable and I could see the pressure changes on the boost gauge - it would drop from 14psi to 6/8psi and return then repeat with no change in throttle position. I have not seen any other 718 report on posts here or even on line so guess its unusual for Porsche.


Now I could replicate the issue I took it into the OPC on a Saturday morning and a tech came out with us same day (me driving) and identified (makes a change it actually showed the problem) it as a turbo fault, specfically an actuator failure (wastegate I guess?). He get us booked in for a 3 day visit there and then.

2 weeks later car in for repairs today, we had to wait for a car, ours was drivable so no issue waiting. We got a (900 mile new) Cayman Gentian, black wheel base as a courtesy car while they worked on ours. The diagnostics confirmed the turbo issue and today I had confirmation that the entire turbo unit has been replaced, will get back tomorrow – 3 days job done, not great it failed, but food service to resolve, which is what really counts.

Just thought I would post symptoms and fix process for others to be aware. Can’t fault the OPC and the warranty process was all very smooth.

Car just short of 1 year old (MY 2019) base.

Been a while since my last post as nothing to say, just enjoying the car, however a few weeks ago we started to feel some power dips when we hit around 5k rpm /(12-14psi boost pressure). More recently these got more noticeable and I could see the pressure changes on the boost gauge - it would drop from 14psi to 6/8psi and return then repeat with no change in throttle position. I have not seen any other 718 report on posts here or even on line so guess its unusual for Porsche.


Now I could replicate the issue I took it into the OPC on a Saturday morning and a tech came out with us same day (me driving) and identified (makes a change it actually showed the problem) it as a turbo fault, specfically an actuator failure (wastegate I guess?). He get us booked in for a 3 day visit there and then.

2 weeks later car in for repairs today, we had to wait for a car, ours was drivable so no issue waiting. We got a (900 mile new) Cayman Gentian, black wheel base as a courtesy car while they worked on ours. The diagnostics confirmed the turbo issue and today I had confirmation that the entire turbo unit has been replaced, will get back tomorrow – 3 days job done, not great it failed, but food service to resolve, which is what really counts.

Just thought I would post symptoms and fix process for others to be aware. Can’t fault the OPC and the warranty process was all very smooth.

Car just short of 1 year old (MY 2019) base.

Just thought I would post here to say that my 718(2018) had a turbo fault. The turbo pressure isn’t going up at all with the oil pressure going through the roof. Waiting to be recovered at the moment.

Car has only 9k miles on the clock and serviced one month ago. Waiting to here back from Porsche with the solution.

This is the Second fault with my 718. I’ve had water coming in through a vent and leaked into the boot of the car and the car carpets have been soaked. Apparently the carpets were removed and dried however I’m still having major condensation issues.

I’ll keep you posted on the results

 

[Andy J]

My 718, has also just been diagnosed with a faulty actuator on the turbo. It’s 11 months old, 4500 miles. Dealership have explained that the actuator is at the bottom of the turbo and is susceptible to water Ingres. So, have they modified the turbo unit, so the replacement will not go the same way?

 

[JazzCatGab]

Just wondering, do you all know when your car was built? My 2019 base Cayman was built on Nov. 8, 2018, so wondering if it is danger. This is the build date, not any other date. If you don't know how to find the build date, you can go here and put in your VIN.

 

[UKG]

Just wondering, do you all know when your car was built? My 2019 base Cayman was built on Nov. 8, 2018, so wondering if it is danger. This is the build date, not any other date. If you don't know how to find the build date, you can go here and put in your VIN.

Pretty sure mine was at the end of Sept 2018, straight after the shut down for emissions testing, delivered late Nov 2018

 

[highwire_ca]

My 718 Cayman S is a 2016 build (I guess from the first run). I can't get the boost to go higher than 11psi. I should probably get it checked out.

 

[jimmuller]

My 718 Cayman S is a 2016 build (I guess from the first run). I can't get the boost to go higher than 11psi. I should probably get it checked out.

I don't recall what the spec'ed limits are but as I remember it fro postings in 718Forum that sounds about right. The boost on the S won't go as high as it will on a base 718. And it's hard to see the base's boost go so high very often because when it does you are, which is to say, I am, watching the road instead of the instruments.

 

[Viffermike]

I don't recall what the spec'ed limits are ... <snip>

Cut-and-paste from a post of mine in the GTS subforum:

Directly from Porsche press material:
2.0 base: 20.3 PSI
2.5 S: 14.5 PSI
2.5 GTS: 18.1 PSI

No context is given for under what conditions that 18.1 PSI figure can happen. I suspect it would be at high speed and in a high gear, not at (relatively) low speed and in a low gear

 

[phm14]

My 718, has also just been diagnosed with a faulty actuator on the turbo. It’s 11 months old, 4500 miles. Dealership have explained that the actuator is at the bottom of the turbo and is susceptible to water Ingres. So, have they modified the turbo unit, so the replacement will not go the same way?

Base?

 

[Ehcsrop718]

Guys I had my original turbocharger replaced 8k miles ago (when it was on 12k) diagnosed as a sticking wastegate. I've just started getting issues again, turbo screeching, loss of power, juddering and strange PSI readings through rev range. Have just contacted the local centre and waiting to hear back. Will keep you posted but there is clearly a weakness in design or manufacturing. (2.0 base)

 

[JazzCatGab]

Guys I had my original turbocharger replaced 8k miles ago (when it was on 12k) diagnosed as a sticking wastegate. I've just started getting issues again, turbo screeching, loss of power, juddering and strange PSI readings through rev range. Have just contacted the local centre and waiting to hear back. Will keep you posted but there is clearly a weakness in design or manufacturing. (2.0 base)

What's your build date?

 

[GSC]

718 2.0L with 5000 miles, 18 months old.

Also experienced the same issue. Juddery power delivery under hard acceleration and PSM warning light. The issue was diagnosed by local Porsche centre as seized turbo wastegate actuator. Repaired under warranty. Unlike the other cases mentioned on this forum, the turbocharger was not replaced but the actuator was freed up and greased.

Looks to be a weakness in design with the wastegate actuator positioned very low down and probably susceptible to water ingress, causing the actuator to seize up.

 

[Ehcsrop718]

Sorry to say guys that Porsche don't have a fix for this. Mine now has its 3rd turbo installed and that its the same part!! Both turbo fails have been the same issue (sticky wastegate). What a joke. 21k miles, 2 yrs old.

They told me that the EML, misfire and disabled PASM was a self protection mechanism. Obviously I don't believe that.

My advice would be to get rid, its the flakiness car I've ever owned.

 

[GSC]

I was hoping that Porsche would have modified the turbo unit on the 2.0L to rectify the issue. In my case the turbo unit wasn't actually replaced and I was concerned about this. Indeed, no parts were replaced and the fix simply involved applying copper grease. However, sounds like brand new turbo unit wouldn't make any difference anyway.

 

[Ehcsrop718]

Yes I agree from what I've been told and experienced, you wouldn't be any further forward.

I'm selling mine now, am done with it.