[knightarmor]

at 30K I had this done:

• Brake fluid flushed/changed
• Differential fluid flushed/changed

So I'm only asking, do you think the differential fluid change had anything to do with your failed motors?
Has Nissan ever said what the failure was?
Based on my recent experience with one dealership I wouldn't trust them to change a wiper blade.

 

[Cosmyc]

So I'm only asking, do you think the differential fluid change had anything to do with your failed motors?
Has Nissan ever said what the failure was?
Based on my recent experience with one dealership I wouldn't trust them to change a wiper blade.

It doesn't have anything to do with the motors, the reduction gear oil is one thing, the electric motor oil is another and this last one can't be changed.

 

[knightarmor]

The electric motors themselves don't have oil?
The reduction gear is the only oil in the assembly. If that fails they will replace the entire motor assembly.

 

[Cosmyc]

The electric motors themselves don't have oil?
The reduction gear is the only oil in the assembly. If that fails they will replace the entire motor assembly.

Depends on the electric motor and specifications, usually they don't have oil and are water cooled instead but the Ariya ones are cooled with oil, they're filled with dielectric oil for cooling purposes with its own electric oil pump, then it has a heat exchanger to transfer that heat to the powertrain water circuit.

 

[knightarmor]

Depends on the electric motor and specifications, usually they don't have oil and are water cooled instead but the Ariya ones are cooled with oil, they're filled with dielectric oil for cooling purposes with its own electric oil pump, then it has a heat exchanger to transfer that heat to the powertrain water circuit.

This is true, but that's only for cooling. The motors could have burned up if the heat exchangers were not working properly, or there was low coolant or low oil in that cooling system.. This is why I'm wondering if they determined root cause.
From the documentation I have the reduction gear in the Ariya doesn't use the Matic S fluid anymore like the Leaf and instead uses a traditional heavy weight gear oil. If the Nissan dealer that did the fluid change put the wrong fluid in then that would have damaged the reduction gear in both front and rear motor assemblies.
I guess the real question what does the paperwork say they put in during the fluid replacement?

 

[CSlug]

So I'm only asking, do you think the differential fluid change had anything to do with your failed motors?
Has Nissan ever said what the failure was?
Based on my recent experience with one dealership I wouldn't trust them to change a wiper blade.

I dont think so. The first DTC error showing the short in front traction motor was at 17K.

 

[knightarmor]

It doesn't have anything to do with the motors, the reduction gear oil is one thing, the electric motor oil is another and this last one can't be changed.

I understand that but the reduction gear is attached to the motor. If one or the other fails don't they replace the entire assembly as one unit?
In CSlugs case it's a mute point since he's pointed out that he was having electrical issues with the motor itself, of which I missed or forgot he mentioned in his original thread.

 

[Cosmyc]

This is true, but that's only for cooling. The motors could have burned up if the heat exchangers were not working properly, or there was low coolant or low oil in that cooling system.. This is why I'm wondering if they determined root cause.
From the documentation I have the reduction gear in the Ariya doesn't use the Matic S fluid anymore like the Leaf and instead uses a traditional heavy weight gear oil. If the Nissan dealer that did the fluid change put the wrong fluid in then that would have damaged the reduction gear in both front and rear motor assemblies.
I guess the real question what does the paperwork say they put in during the fluid replacement?

For the part you said that the motor could burn up if the heat exchanger doesn't work properly, that's not the case, the Ariya has power limiting measures for high temp on the battery, as well as the inverter and electric motor, as stated in the service manual.
Even if it happens the car is programmed to inform the driver with a cluster message that says "EV system hot, power reduced", which didn't happen to the affected user.

 

[Kka]

Update around my case. 3 weeks in, part is on backorder with no ETA... Well done Nissan

 

[PNWariya]

Update around my case. 3 weeks in, part is on backorder with no ETA... Well done Nissan

Ugh! Sorry that you are on the "waiting" list. Another forum member had a very long wait, but indicated that involving an attorney may help to oil the creaky customer service machine...

https://www.ariyaforums.com/posts/37712/

 

[Kka]

Ugh! Sorry that you are on the "waiting" list. Another forum member had a very long wait, but indicated that involving an attorney may help to oil the creaky customer service machine...

https://www.ariyaforums.com/posts/37712/

Yea, once my wait time will go over 30 days, I'll start heavy on them (attorney is ready to help ) and hopefully will get to solution pretty quick

 

[Kka]

Well,
Update from my side, on day 26 I raised a buyback question with Nissan affairs, and magically part found it's way to dealership and I got my car back, fully repaired at day 30.
I'll see how it goes, but now just happy to get my car back and stop driving that shitty loaner.

 

[F105]

Well,
Update from my side, on day 26 I raised a buyback question with Nissan affairs, and magically part found it's way to dealership and I got my car back, fully repaired at day 30.
I'll see how it goes, but now just happy to get my car back and stop driving that shitty loaner.

I was just curious — did you happen to notice any oil puddles or experience any other issues besides the noise?

 

[Kka]

I was just curious — did you happen to notice any oil puddles or experience any other issues besides the noise?

Nope , nothing. And the noice appeared instantly, like yesterday was all good, and today when started driving it started.

 

[FolsomCa]

About 12 months ago we began hearing a different sound than normal when the accelerator was pressed during normal driving. Sound had a slightly higher volume and slightly different pitch from what were were used to and would occur above 60MPH. Brought the car in for service and was told it was normal.

Fast forward to today, the sound now occurs any time the accelerator is pushed down but does not when I lift my foot. Its a very sudden stopping of the sound. Drove the car with the service tech. Turns out the reduction gear (transmission) is beginning to fail and needs a full replacement.

Thought you all might want to know if you are hearing anything similar.

After reading your statement I was concerned becauseI just had 36,000 mile maintenance, no issues OR no issues caught I often wonder how detail they actually do? But I think IMPORTANT point to remember is POWERTRAIN is covered for 5yr or 60,000 miles.which should cover reduction gear(transmission) Please correct me if I am wrong.....EDH I will have my reduction gear oil changed at 59,000 this way I KNOW it was looked at ..before warranty on powertrain expires at 60,000

 

[Kka]

After reading your statement I was concerned becauseI just had 36,000 mile maintenance, no issues OR no issues caught I often wonder how detail they actually do? But I think IMPORTANT point to remember is POWERTRAIN is covered for 5yr or 60,000 miles.which should cover reduction gear(transmission) Please correct me if I am wrong.....EDH I will have my reduction gear oil changed at 59,000 this way I KNOW it was looked at ..before warranty on powertrain expires at 60,000

Good thinking around changing the oil. Btw They should have checked the oil on 30K maintenance.

 

[F105]

Nope , nothing. And the noice appeared instantly, like yesterday was all good, and today when started driving it started.

Thank you for your response. A few days ago, I heard a similar noise.
The garage wasn’t able to identify the source of the sound. They suspect it might be coming from the electric motor. The investigation will continue on the 31st.

 

[Cosmyc]

I understand that but the reduction gear is attached to the motor. If one or the other fails don't they replace the entire assembly as one unit?
In CSlugs case it's a mute point since he's pointed out that he was having electrical issues with the motor itself, of which I missed or forgot he mentioned in his original thread.

They're considered separate modules and the reduction gear can indeed be ordered separately from Nissan.

 

[Kka]

They're considered separate modules and the reduction gear can indeed be ordered separately from Nissan.

True but the overall cost would be $3k+ only for parts

 

[F105]

After two visits to the Nissan dealership, it was confirmed today that the noise originates from the component responsible for transferring power between the electric motor and the drivetrain. The required parts have been ordered, and with some luck, the repair will be completed within two weeks. The repair is fully covered under warranty.