Welcome to SupraTribe!

Register today and help us move the Supra MKV aftermarket forward!

Register Log in

2020 Supra - Leaking fluid from differential - Stock - ~1600 miles

Zupraman

New member
I'll list the state of the car at the time this was noticed:

Owned for 3 weeks. I drove it a lot for the break-in miles. Hadn't used launch control up to that point.
~1600 miles (memory)
100% Stock (at the time)


Description:
On the day of install for my first two mods (catless downpipe/tune), the shop I had my car at and I inspected the car before the installation of the downpipe, this is how we found the leak. Fortunately the leak is small, but unfortunately it doesnt occur when the car is motionless (in my experience) otherwise I would've seen it on my garage floor. It looks like it sprays a thin film of fluid at whatever is behind the drain plug. We dont yet know how much fluid was lost. My car (as of today) went into the dealership to examine the issue.

So far I've heard from 3 other MKV owners that have the same leaking problem and location. I'm waiting to hear what the dealership says about it. I'm looking for anyone else who has identified this issue with their car to post about it below, and if they've had resolution with the dealership for it.

Thanks!


*update - 11/16/19 - I spoke with the dealership yesterday, so far their only solution is to replace the drain plug (which they have to source because apparently there wasn't a Toyota part number for it yet). I'll report back the day after it's plugged (Wednesday), and a week after to share if it worked or not.
 
Last edited:

Zupraman

New member
I spoke with the dealership yesterday, so far their only solution is to replace the drain plug (which they have to source because apparently there wasn't a Toyota part number for it yet). I'll report back the day after it's plugged (Wednesday), and a week after to share if it worked or not.
 

Zupraman

New member
:confused: that doesn't instill a lot of confidence.
I agree. There is one other supra owner I've been conversing with over Facebook messenger who had the same issue. They used the z4 drain plug (I believe it's the same exact diff), which he has reported as not leaking for the past 5 days he's had it installed. He hasn't driven it much which is why he is still uncertain. I'll have him post something here when he has a chance.
 

SupraTribe.com

Administrator
307
Sounds like something we'll need to keep an eye on. I was thinking of creating a TSB and known issues thread and adding it to the navigation so people can quickly find it.
 

Zupraman

New member
I agree. There is one other supra owner I've been conversing with over Facebook messenger who had the same issue. They used the z4 drain plug (I believe it's the same exact diff), which he has reported as not leaking for the past 5 days he's had it installed. He hasn't driven it much which is why he is still uncertain. I'll have him post something here when he has a chance.
Following up with the other supra owner. Today he noticed the leak again. This time it wasn’t as bad as the previous time, but still a leak at the drain plug.
 

Zupraman

New member
An update from one other member that had the same issue.

"So a little update on the diff I went to Toyota today And the technician that was working on my car called the headquarters and they said there’s a certain type of wax in the diff that when the fluid heat up it Pukes it through the Breather "

So it sounds like this is working by design.
 

SupraTribe.com

Administrator
307
An update from one other member that had the same issue.

"So a little update on the diff I went to Toyota today And the technician that was working on my car called the headquarters and they said there’s a certain type of wax in the diff that when the fluid heat up it Pukes it through the Breather "

So it sounds like this is working by design.
Odd. But hey, if it's not a leak, that's a good thing!
 
I am facing the same problem as i dropped my car for a service at 3700mile ... They told me there is a leak and they dont have the seals available and will take 40 days for them to sort it out...

1- Is it confirmed with toyota from other regions thats its only a wax that Pukes the oil when it heats?

2- Is it ok to be driving the car at this time "crousing around" or should i wait for them to get the seals and replace it ?
 

SupraTribe.com

Administrator
307
I am facing the same problem as i dropped my car for a service at 3700mile ... They told me there is a leak and they dont have the seals available and will take 40 days for them to sort it out...

1- Is it confirmed with toyota from other regions thats its only a wax that Pukes the oil when it heats?

2- Is it ok to be driving the car at this time "crousing around" or should i wait for them to get the seals and replace it ?
Wonder if @Zupraman will have some feedback.
 

Featured Supra MKVs

Top