Thanks for your detailed info. This seems to be the weak points of our platform both tuned and untuned.
omg your dealership’s whole service department should get fired. 9 month with a messed up turbo? Literally when I heard the noise for the first time, took it in 3 days later and they replaced my turbo, also they looked at the belt and replaced that as well since it was “too stretched out”Hi Everyone,
I apologize if this is in the wrong spot, but I wanted to share some info on a recent turbo failure, in case it may help someone else in future
2017 - Q50 Premium 3.0T
57,000 Miles
No Mods
The issue started roughly 9 months ago, under load starting around 2,000 RPM there was a squeal coming from the engine, it was intermittent and not easy to hear, I took it into the dealer they checked the belts and tensioner, tightened everything and sent me on my way.
The squeal turned into a clicking/metallic knock noise, I have read the clicking is "Normal" so I didn't pay much attention to it but it started to get louder and more noticeable especially on cold start up, the car also started intermittently shuddering on shut down and the RPMs would occasionally fluctuate a lot, I took it back to the dealer and the first service advisor acted as if I was a moron with no knowledge of how cars worked and told me none of what I said would concern him but they will take a look. They ended up replacing the belt and tensioner and sent me on my way.
Clicking became worse over the coming week and would only be noticable on cold start up after leaving it over night, roughly a week later the clicking was so loud, it sounded like a tractor, I got a short video of it and took it straight to the dealer they held onto it for a week were able to replicate the issue but since there was no fault codes and engine seemed to be operating correctly they went to Infiniti Tech team who diagnosed it as a bad passenger side catalytic converter and replaced.
I took it home and the next morning same problem. Took it back to the dealer and they didn't have loan vehicles until this past Monday but assured me it was safe to drive, so I spent the weekend trying to figure it out and finally realized the clicking was actually happening above 2,000 RPM again however wasn't noticable during normal driving as the engine/exhaust drowned it out, while sitting in my garage and revving the engine to 3000rpm with short taps you could hear the clicking while the RPM was dropping from 3k back down to idle. Which lead me to believe it was a turbo .
i explained my findings to the dealer when I dropped it off yesterday and received a call just now that after more tests they have determined that yes a turbo is failing and they are replacing.
tl;dr - Metallic clicking / knocking during warm up when RPM is above 2,000 = failing Turbo
Honestly the SM building a case for you is pretty much your best bet in terms of getting the work covered by warranty.Just a quick update, spoke to the dealer today and it sounds like they have only been approved to replace the one turbo due to waste gate failure. I pushed back since it's 11hours of labor and roughly $2,000 (Infiniti cost) for the turbo gaskets etc.
The service advisor said they are going to inspect the other turbo and see if they can build a case to replace also.
I called the Infiniti Consumer Affairs line who directed me to the dealers Warranty administrator, I called him and explained my case for both.
Anyone have any other ideas on what I should do here ? Because putting the engine back in with a ticking time bomb to me is beyond idiotic.
Unfortunately I purchased this time around rather than a lease (leased the previous 3 vehicles) so I guess I'm sh** out of luckHonestly the SM building a case for you is pretty much your best bet in terms of getting the work covered by warranty.
Without a lawsuit or trying to have your car declared as a lemon you'd be hard pressed to get Infiniti or your dealership to cover the extra work.
Did you buy your car outright? Is it on a lease? Let us know how you purchased the car because
that could give you a few different options.
Maybe not, as your car is still under warranty with Infiniti and this is a major warranty repair taking place you may be able to negotiate with yourUnfortunately I purchased this time around rather than a lease (leased the previous 3 vehicles) so I guess I'm sh** out of luck
Good to know2016-17 models have the older turbos where the 2018+ models have the redesigned snails. Odd they would only replace one and not both - they must have had access to the older turbo part. My 2017 had oil issues on both and were replaced with the redesigned turbos (missing the EGT sensor - that also requires a new ECU ROM flash.)
Thanks for the suggestion, already done I found that thread after creating this post.This is an important topic and you should post in this thread so turbo issues/failures are all in one place.
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Consolidated 3.0T turbo replacement thread
At this point it seems like a recall should have been mandatory. Sticky this so everyone doesn't make their own thread every time this happens. These are only the ones whove posted up, let alone all of the ones on FB. When posting include: Year Miles when replaced One or both turbos Mods Boost...www.infinitiq50.org
I believe the redesigned turbos started with the 2019 MY, not 2018.2016-17 models have the older turbos where the 2018+ models have the redesigned snails. Odd they would only replace one and not both - they must have had access to the older turbo part. My 2017 had oil issues on both and were replaced with the redesigned turbos (missing the EGT sensor - that also requires a new ECU ROM flash.)
There were actually multiple supersessions for the turbo. The most recent one is 14411-5CA2D (left side).I believe the redesigned turbos started with the 2019 MY, not 2018.
So if you get newer turbos u would have to do ecu rom flash on 2017 q502016-17 models have the older turbos where the 2018+ models have the redesigned snails. Odd they would only replace one and not both - they must have had access to the older turbo part. My 2017 had oil issues on both and were replaced with the redesigned turbos (missing the EGT sensor - that also requires a new ECU ROM flash.)