[Jia]

Especially the ones who buy salvage Q50's.

Bought mine brand new, and of course just fully paid off not too long ago.
I guess if I had traded in my car someone else would be on this thread in less than a month

 

[Brianq50sport]

 

[Spadds76]

Those are just the ones who went and confirmed they needed new turbos. The amount who actually need new turbos is much higher. Stock downpipes/exhaust hide quite a bit.

This is interesting. I ran some quick numbers.

What's the first thing most people do if they have a car issue? find a forum/post in a forum about it.

In this modern day, we can assume a lot of failed turbo cases are reported on the WWW? This is one of the best forums for Q50 in North America. So let's take a look.

For example 1, There are 57 pages in this failed turbo thread. .Let's also assume there are 40 posts per page with each post with failed turbos, and not comments/discussion about the issue. that's 2,280 failed turbo cases. Reported here.

For example 2 Let's bump the figures up to 300 pages for those that don't know about the great Q50.org forum, and keeping the posts at 40 failed turbos per page, thats an assumed 12,000 cases of failed turbos. Oh my.

Infiniti have sold 279,294 Q50's since 2013. I removed 13/14/15 MY as they were likely 3.7 engines, so from 16 to 22 that is 180,705 units.

Example 1 shows that 1.26% of the units had reported turbo issues.

Example 2 shows that 6.64% of the units could have reported turbo issues.

 

[Brianq50sport]

Interesting,,what is your conclusion or analysis..

 

[Ddnspider]

This is interesting. I ran some quick numbers.

What's the first thing most people do if they have a car issue? find a forum/post in a forum about it.

In this modern day, we can assume a lot of failed turbo cases are reported on the WWW? This is one of the best forums for Q50 in North America. So let's take a look.

For example 1, There are 57 pages in this failed turbo thread. .Let's also assume there are 40 posts per page with each post with failed turbos, and not comments/discussion about the issue. that's 2,280 failed turbo cases. Reported here.

For example 2 Let's bump the figures up to 300 pages for those that don't know about the great Q50.org forum, and keeping the posts at 40 failed turbos per page, thats an assumed 12,000 cases of failed turbos. Oh my.

Infiniti have sold 279,294 Q50's since 2013. I removed 13/14/15 MY as they were likely 3.7 engines, so from 16 to 22 that is 180,705 units.

Example 1 shows that 1.26% of the units had reported turbo issues.

Example 2 shows that 6.64% of the units could have reported turbo issues.

Those "statistics" are unfortunately loaded with built in assumptions. Forums are all but dead for the majority of people. FB is significantly more used than forums for all but the avid enthusiast. Now see how many Q50 owners aren't enthusiasts let alone know enough about cars to recognize the symptoms of a failed turbo. If they do, they likely go to the dealership or mechanic and pay the bill and call it done. Given how many have posted on FB as well as on here vs. How many active people who are enthusiasts, I have no doubt it's systemic vs. some random failures by a few people.

 

[jodedor]

This is interesting. I ran some quick numbers.

What's the first thing most people do if they have a car issue? find a forum/post in a forum about it.

In this modern day, we can assume a lot of failed turbo cases are reported on the WWW? This is one of the best forums for Q50 in North America. So let's take a look.

For example 1, There are 57 pages in this failed turbo thread. .Let's also assume there are 40 posts per page with each post with failed turbos, and not comments/discussion about the issue. that's 2,280 failed turbo cases. Reported here.

For example 2 Let's bump the figures up to 300 pages for those that don't know about the great Q50.org forum, and keeping the posts at 40 failed turbos per page, thats an assumed 12,000 cases of failed turbos. Oh my.

Infiniti have sold 279,294 Q50's since 2013. I removed 13/14/15 MY as they were likely 3.7 engines, so from 16 to 22 that is 180,705 units.

Example 1 shows that 1.26% of the units had reported turbo issues.

Example 2 shows that 6.64% of the units could have reported turbo issues.

you dont have to estimate 40 per page.

the first thread has all of them...count them up.

I tend to agree with @Ddnspider about forums being dead to a lot of folks...not most just a lot.

what percentage of q50 owners are represented in tje first post is anybodys guess.

say the percentage is 1%...or 10%...only thing that matters is that it doesnt happen to you.

I just know that if and when it happens to me...I say if because I am being optimistic...I will have the turbos or motor replaced and trade or sell the car immediately.

at 47,000 miles I am about half way to the highest mileage failure reported here. we shall see.

 

[damonb10]

This is interesting. I ran some quick numbers.

What's the first thing most people do if they have a car issue? find a forum/post in a forum about it.

In this modern day, we can assume a lot of failed turbo cases are reported on the WWW? This is one of the best forums for Q50 in North America. So let's take a look.

For example 1, There are 57 pages in this failed turbo thread. .Let's also assume there are 40 posts per page with each post with failed turbos, and not comments/discussion about the issue. that's 2,280 failed turbo cases. Reported here.

For example 2 Let's bump the figures up to 300 pages for those that don't know about the great Q50.org forum, and keeping the posts at 40 failed turbos per page, thats an assumed 12,000 cases of failed turbos. Oh my.

Infiniti have sold 279,294 Q50's since 2013. I removed 13/14/15 MY as they were likely 3.7 engines, so from 16 to 22 that is 180,705 units.

Example 1 shows that 1.26% of the units had reported turbo issues.

Example 2 shows that 6.64% of the units could have reported turbo issues.

A lot of flawed assumptions there. Fun exercise though.

 

[BigHeadClan]

This is interesting. I ran some quick numbers.

What's the first thing most people do if they have a car issue? find a forum/post in a forum about it.

In this modern day, we can assume a lot of failed turbo cases are reported on the WWW? This is one of the best forums for Q50 in North America. So let's take a look.

For example 1, There are 57 pages in this failed turbo thread. .Let's also assume there are 40 posts per page with each post with failed turbos, and not comments/discussion about the issue. that's 2,280 failed turbo cases. Reported here.

For example 2 Let's bump the figures up to 300 pages for those that don't know about the great Q50.org forum, and keeping the posts at 40 failed turbos per page, thats an assumed 12,000 cases of failed turbos. Oh my.

Infiniti have sold 279,294 Q50's since 2013. I removed 13/14/15 MY as they were likely 3.7 engines, so from 16 to 22 that is 180,705 units.

Example 1 shows that 1.26% of the units had reported turbo issues.

Example 2 shows that 6.64% of the units could have reported turbo issues.

A good 70-80% of posts here are discussions on possible causes/fixes/prevention methods and fault rates like this, as others have said if you count the 1st page summary that Spooder has done a fantastic job maintaining its about 60-70 reported turbo failures. Your also forgot to account for the 2.0T and 3.5L Hybrid variants of the Q50 that were on sale up until 2018 as well so the true number of cars with the 3.0T is fewer than 180K.

Either way even if we quadrupled those failures to match your 2nd example we are talking about less than 300 reports total based on this forums reports, or a percentage of a percentage. We also need to remember the forums have a natural bias towards issues and complaints but even those are a fraction of total owners on the road.

Fact of the matter is we just don't have a large enough sample size or accurate reporting to really track these issues.

 

[Brianq50sport]

Hmm interesting,,hopeful optimistic conclusions possible..

 

[RunnerDude]

2018 Q50 3.0t Luxe
Original owner who leased then bought
Miles at failure - 49k
One or both turbos - Both, plus leaking water pump
Stock, no mods
Oil changes at regular 10k intervals with dealer recommended oil grade
Repair cost of $8,000+ was covered under 70K/60 month power train warranty

The latest victim here. Thanks to everyone on this thread who provided the details of their turbo failure. After having these same problems with my car and reading this thread, I knew that my turbos had failed.

Over the past several weeks I noticed that there was a strange rattling noise at start and idle, and the characteristic whining/whistling when the turbos kicked-in. At the time, I didn't think that it was anything serious because ti was so gradual and the car was still running fairly smoothly and strong. But suddenly the car started cutting out and bucking, several dashboard warning lights became illuminated and the dashboard display start flashing "MALFUNCTION".

I made it home and started to research the issue. Found this thread and concluded that one of the turbos had failed. I drove it to the dealership and had the service advisor check it out. He started the engine and immediately chuckled and said "Yeah, I think I heard that sound before". He told me that it sounded like a turbo failure, but will have the service techs check it out.

After checking it out, they found that one turbo had failed, and the other was leaking oil. They said that the oil level was down about 3 quarts, so the turbos had been leaking for a long time, and they did not find any particulates in the oil pan. They submitted the warranty claim to Infiniti, and it was approved to replace both turbos on the power train warranty. After dropping the engine, they found that the water pump was leaking, so they included that in the power train warranty claim.

After the repair was completed, I asked the service advisor about the turbo replacement, and he told me that they were replaced with the newer version of the turbo that was more durable. He showed me the repair invoice and it was just over $8,000.

After I got the car back, I noticed how quiet it was, like before the turbos started to fail. Then I remembered how much I like driving this car. It really is a great sports sedan, with what I think is a nice combination of performance, styling, luxury, comfort, value and reliability (minus the turbo issue). And I get 27.5 mpg in mixed city/highway driving on 92 octane. Now I'm struggling as to whether to trade it before the power train warranty expires, or take my chances with the new turbos and keep driving the car beyond the warranty.

Any thoughts, advice?

 

[Avedis53]

2018 Q50 3.0t Luxe
Original owner who leased then bought
Miles at failure - 49k
One or both turbos - Both, plus leaking water pump
Stock, no mods
Oil changes at regular 10k intervals with dealer recommended oil grade
Repair cost of $8,000+ was covered under 70K/60 month power train warranty

The latest victim here. Thanks to everyone on this thread who provided the details of their turbo failure. After having these same problems with my car and reading this thread, I knew that my turbos had failed.

Over the past several weeks I noticed that there was a strange rattling noise at start and idle, and the characteristic whining/whistling when the turbos kicked-in. At the time, I didn't think that it was anything serious because ti was so gradual and the car was still running fairly smoothly and strong. But suddenly the car started cutting out and bucking, several dashboard warning lights became illuminated and the dashboard display start flashing "MALFUNCTION".

I made it home and started to research the issue. Found this thread and concluded that one of the turbos had failed. I drove it to the dealership and had the service advisor check it out. He started the engine and immediately chuckled and said "Yeah, I think I heard that sound before". He told me that it sounded like a turbo failure, but will have the service techs check it out.

After checking it out, they found that one turbo had failed, and the other was leaking oil. They said that the oil level was down about 3 quarts, so the turbos had been leaking for a long time, and they did not find any particulates in the oil pan. They submitted the warranty claim to Infiniti, and it was approved to replace both turbos on the power train warranty. After dropping the engine, they found that the water pump was leaking, so they included that in the power train warranty claim.

After the repair was completed, I asked the service advisor about the turbo replacement, and he told me that they were replaced with the newer version of the turbo that was more durable. He showed me the repair invoice and it was just over $8,000.

After I got the car back, I noticed how quiet it was, like before the turbos started to fail. Then I remembered how much I like driving this car. It really is a great sports sedan, with what I think is a nice combination of performance, styling, luxury, comfort, value and reliability (minus the turbo issue). And I get 27.5 mpg in mixed city/highway driving on 92 octane. Now I'm struggling as to whether to trade it before the power train warranty expires, or take my chances with the new turbos and keep driving the car beyond the warranty.

Any thoughts, advice?

FYI, the powertrain warranty is 72 months/70K miles, not 60 months/70K miles.

 

[Brianq50sport]

10 thousand miles between oil changes is unheard for old schoolers like me,,fwiw..

 

[xBlitzkriegx]

10 thousand miles between oil changes is unheard for old schoolers like me,,fwiw..

the mileage on the oil isnt the concern, its the conditions of service that make it a cause for concern. 10,000 interstate miles? no sweat! 10,000 in town miles, no way.

 

[Jia]

2018 Q50 3.0t Luxe
Original owner who leased then bought
Miles at failure - 49k
One or both turbos - Both, plus leaking water pump
Stock, no mods
Oil changes at regular 10k intervals with dealer recommended oil grade
Repair cost of $8,000+ was covered under 70K/60 month power train warranty

The latest victim here. Thanks to everyone on this thread who provided the details of their turbo failure. After having these same problems with my car and reading this thread, I knew that my turbos had failed.

Over the past several weeks I noticed that there was a strange rattling noise at start and idle, and the characteristic whining/whistling when the turbos kicked-in. At the time, I didn't think that it was anything serious because ti was so gradual and the car was still running fairly smoothly and strong. But suddenly the car started cutting out and bucking, several dashboard warning lights became illuminated and the dashboard display start flashing "MALFUNCTION".

I made it home and started to research the issue. Found this thread and concluded that one of the turbos had failed. I drove it to the dealership and had the service advisor check it out. He started the engine and immediately chuckled and said "Yeah, I think I heard that sound before". He told me that it sounded like a turbo failure, but will have the service techs check it out.

After checking it out, they found that one turbo had failed, and the other was leaking oil. They said that the oil level was down about 3 quarts, so the turbos had been leaking for a long time, and they did not find any particulates in the oil pan. They submitted the warranty claim to Infiniti, and it was approved to replace both turbos on the power train warranty. After dropping the engine, they found that the water pump was leaking, so they included that in the power train warranty claim.

After the repair was completed, I asked the service advisor about the turbo replacement, and he told me that they were replaced with the newer version of the turbo that was more durable. He showed me the repair invoice and it was just over $8,000.

After I got the car back, I noticed how quiet it was, like before the turbos started to fail. Then I remembered how much I like driving this car. It really is a great sports sedan, with what I think is a nice combination of performance, styling, luxury, comfort, value and reliability (minus the turbo issue). And I get 27.5 mpg in mixed city/highway driving on 92 octane. Now I'm struggling as to whether to trade it before the power train warranty expires, or take my chances with the new turbos and keep driving the car beyond the warranty.

Any thoughts, advice?

So sorry to hear that and glad the warranty covered the cost. Please do file a consumer protection report!

 

[jodedor]

the mileage on the oil isnt the concern, its the conditions of service that make it a cause for concern. 10,000 interstate miles? no sweat! 10,000 in town miles, no way.

and time. wife's pathfinder is at a 2500 mile interval...6 months.

 

[RunnerDude]

FYI, the powertrain warranty is 72 months/70K miles, not 60 months/70K miles.

I stand corrected, thank you!

 

[Brianq50sport]

Yup,,my wife is similar oci) jodedor

 

[Ddnspider]

Updated. Perfect example that most people don't know they have an issue until there is a serious condition that occurs. Then they start researching and find out its systemic.

 

[BigHeadClan]

In other news it appears Infiniti has finally put out a TSB for the Turbo issues for 2016-2022MY cars, more or less just the replacement procedure but some handy information
and parts listing for folks if they are curious.

https://static.nhtsa.gov/odi/tsbs/2022/MC-10229603-0001.pdf

 

[Ddnspider]

In other news it appears Infiniti has finally put out a TSB for the Turbo issues for 2016-2022MY cars, more or less just the replacement procedure but some handy information
and parts listing for folks if they are curious.

https://static.nhtsa.gov/odi/tsbs/2022/MC-10229603-0001.pdf

Miracle of miracles!!! Interesting that they include up to the 2022 MY....

Edit, thats a heck of a TSB. Really good detail on changing turbos. Someone should attach that to a post.