There is a 58 page thread on here about turbo failures/swaps. I am a fairly new Q50 owner and I read it yesterday. Exhausting and makes me afraid to start my car!! I have a 2019 so I have some time under warranty, but already thinking about getting rid of it prior to the warranty ending.

From what I gathered on the thread, they turbos were updated from the original factory turbo. Sounds great, but there are forum members who have had multiple turbos go bad so not sure if the update solves the problem?

 

EGT is no longer part of the revised turbos - hence your ECM was (should have been) updated to account for that change. Unfortunately, the updated turbos do not seem to be faring much better than the '16-17 version. Keep an eye on that smoking issue, and your oil and coolant levels - also consider shortening your OCI to 3-5k (adding a Blackstone oil analysis is also good CYA.)

Aside from that - standard turbo best practices apply (e.g. do not run hard and turn off your engine - let everything stabilize and cool down for a few minutes.)

 

Okay sounds good. Hopefully I have better luck with this set.

 

I had my Q50 in for service (just getting a wheel refinished that they gouged changing a tire) and my service advisor confirmed that in starting in 2023, Infiniti is sourcing replacement turbos from Garrett and no longer using Honeywell. So there are now three versions of the turbos:

Rev. A - Original with EGT Sensor (Honeywell) 2016 - 2019/2020
Rev. B - Revised and Removed EGT Sensor (Honeywell) 2019/2020 - 2022
Rev. C - Unknown revisions and changes (Garrett) 2023 - Present

We don't know exactly what Rev. B made revisions to. Removal of EGT Sensor for sure and probably seals.

Rev. C is a complete unknown at this point so if anyone can get model numbers from the 55-page long thread, we may be able to do some digging.

@silverr_q60 can you post your paperwork from the dealer that possibly shows turbo part numbers?

 

Rev. C is a complete unknown at this point so if anyone can get model numbers from the 55-page long thread, we may be able to do some digging.

@silverr_q60 can you post your paperwork from the dealer that possibly shows turbo part numbers?

Not sure if anyone can make out any more of the tag. This is about as good as it gets from the cheap made in China endoscope I have.

 

In 2018 Honeywell spun off turbo division to Garret. I'm guessing they finally got around to changing the casting the reflect the name change.

Honeywell Announces Garrett as Company Name for Transportation Systems Business After Spin-Off & Olivier Rabiller to continue as CEO of Garrett - Advancing Motion

MORRIS PLAINS, NJ, June 14, 2018 – Honeywell (NYSE: HON) today announced that its Transportation Systems business will rebrand itself "Garrett - Advancing

www.garrettmotion.com

 

Might have a winner here:

 

Very Nice. Think you got it. I was just going to see about calling Garrett on Monday and asking if they could give me their model number for Infiniti's.

 

I could definitely make out the first few digits of the model number and then started googling until I found a part number. It looks like they use these SAME turbos on the Juke as well. It's only 1.6L but with two of these that our car has, each side is only feeding 1.5L of displacement.

 

i searched the garrett turbo database, that p/n is not yet in it.

 

This is interesting. Its an article on ConceptZ about the original turbos they got hold of in 2016. Check out the customer part number "A0A". -

"What you’re looking at is the FZ5t Turbo by Honeywell/Garrett. It is an MGT1446LKSZ. “MGT” is the current line of “Modern Gas Turbos,” and 1446 basically refers to the size. "

A closer look at the VR30DDTT’s Turbochargers – Concept Z Performance Blog

I wonder if that means that the latest version no longer has Honeywell involved?

Also matches the first one list above on the Garrett look-up.

 

Nice detective work everyone!

 

Do we have any updates here on which Infiniti part # 5CA*X with * being the revision of the turbo was swapped from Honeywell to garret?

my turbos are both 5CA4C and 5CA4D