[svmvale]

Originally Posted by amitmanjul

Sorry for reviving an old quote but I am very keen to get the oils changed in the gearbox of my Octavia 1.8TSI.

While there are no issues at all with the car currently, I just want to err on the side of caution. It’s done about 40K of mostly highway drives.

May I know where you got this done? I am based out of Bangalore & I believe you are as well.

Hi Amit,
Apologies for my delayed reply.

For my Vento DSG: got the service done at TRANSWERKE AUTO, Erode.
https://maps.app.goo.gl/G9T2rbnwFPnswnHYA

They are very good for VW group of vehicles and the German Big 3.

Though I stay in Madurai, Tamil Nadu - I send my car to TRANSWERKE for routine maintenance.

[s2K_scorpioN]

For those with Aisin 6 speeds in Toyotas (Fortuner, Innova) and Mahindras (Scorpio N)

Information is form the following link:

https://gearboxlist.com/toyota/ac60f/

gives those of you who would like to change the ATF, the oil specifications.

The transmission model number is: AC60E (2WD) or AC60F (4WD)

I believe the right fluid specification for this TC is: JWS 3324 (WS)

[ike]

Originally Posted by Shreyans_Jain

My Hexa is at 150k km, and has just had its second ATF change. The first one was carried out at 1.1L km.

Where did you get this done? Did the Tata dealership do it for you? There are many AT Hexas with busted transmissions probably due to negligence from owners and SCs who believed the sealed for life story. My AT Harrier is approaching 40k KMS and I'd like to get a transmission fluid change done but the dealership seems clueless about it. What brand oil did you use?

[Shreyans_Jain]

Originally Posted by ike

Where did you get this done? Did the Tata dealership do it for you? There are many AT Hexas with busted transmissions probably due to negligence from owners and SCs who believed the sealed for life story. My AT Harrier is approaching 40k KMS and I'd like to get a transmission fluid change done but the dealership seems clueless about it. What brand oil did you use?

TASS has always been clueless about AT oil change. I had this done at Worlds of Service, Noida. The make and spec of the oil used was as per what is mentioned in the manual. Honestly, 40k km is a little early for oil change in a torque converter. Unless you have abused it a fair bit, I see no reason why it can’t last for at least another 10000km.

[ike]

Originally Posted by Shreyans_Jain

Honestly, 40k km is a little early for oil change in a torque converter. Unless you have abused it a fair bit, I see no reason why it can’t last for at least another 10000km.

It can wait for some more time for sure, I'm in no hurry. However I have warranty till 2028 on the car so getting it done outside may not be a good option. The funny part is 1 quart of ATF is included as a consumable in the 45KM/3 year periodic maintenance schedule in the Tata service app but none of the Harrier owners I spoke to are aware of anything carried out in terms of transmission maintenance during service.

And I don't know of any FNGs that have the knowledge and capability to undertake an AT oil change around where I live.

[Traxxrc1]

Any leads on where to get the WS 9638 spec oil for my Mahindra AT gearbox?
Is there some other oil that can be used instead?
Thanks.

[Aceman82]

Folks, I got an "AT transmission failure" error on the dashboard. Two days ago, while driving to my in-laws' place, the error appeared on my XUV500.



The car shifts gears smoothly from 1st to 3rd, but it struggles to shift beyond that. The gearbox either fails to shift, shifts improperly, or gets stuck, and the error reappears.

The car is just over seven years old (currently in its eighth year), and the warranty has expired.

For most of its life, the car has been driven on Indian highways, but as we know, Indian road conditions aren't the best. I believe Mahindra made a mistake with the "sealed for life" transmission, and with the increasing popularity of automatic transmissions, I expect to see more failures like this.

I'll keep this thread updated on the progress and the cost of repair (or, heaven forbid, a replacement).

[Aceman82]

Originally Posted by Aceman82

Folks, I got an "AT transmission failure" error on the dashboard. Two days ago, while driving to my in-laws' place, the error appeared on my XUV500.

...............

I'll keep this thread updated on the progress and the cost of repair (or, heaven forbid, a replacement).

At the service centre, the AT error did not appear. However, I faced the issue again after driving more than 50 km. After reading this thread, it became clear to me that the transmission oil was recirculating improperly, making it too risky to continue driving the car with the old ATF fluid.

I insisted that the service centre replace the ATF fluid and clean the ATF cooler before returning the car. Initially, they were hesitant to do so — partly due to the cost (around ₹10,000) and also because they did not have the full quantity of ATF fluid in stock.

Still, after my persistence, the team at AMPL OMR agreed to change the ATF fluid and clean the ATF cooler. To be fair, they did a terrific job with both the fluid change and the ATF system cleaning.

Here's what I observed after the oil change:

a. Gear shifts are now super smooth — almost imperceptible.
b. I took the car for a drive of around 800 km across various conditions (previously, the issue occurred during the shift from 3rd to 4th gear), and the car performed flawlessly. (Picture attached)



My recommendation:

For anyone driving a Mahindra/Aisin AT vehicle with a ‘sealed for life’ gearbox — please note, it is not truly sealed for life under Indian driving conditions. Once your extended warranty ends, get the ATF fluid changed. (Mine was 8 years old.) It may be costly, but it's worth it — as an AT replacement could cost upwards of ₹3.5 lakhs.

The ‘sealed for life’ concept simply does not work in Indian conditions.