[mvadg]

Originally Posted by audioholic

Today I attempted a change of the AMT oil on my Celerio. It has already done 58k kms and has been put to as much abuse as possible. Hence I wanted to experiment this.

Great DIY!
Only part I don't like is that expensive AMT fluid. I think you could use cheap gear oil for flushing out the system and then fill it with the "real" AMT fluid.
I found this:
https://www.chevronlubricants.com/en...ae-75w-90.html

Which means it is ordinary gear oil with extra additives.

By the way, which is the FNG you use?

I found out that Surakshaa MASS, Bommanahalli, does service these actuator mechanisms (not just replace them), even for out of warranty cars.

[Keneida]

Originally Posted by Mortis

Thanks. I'm sure a lot of AMT owners would appreciate it. How often would you say this needs to be done ? Every 20k kms/2 years ?

Also can an inline oil filter be fitted anywhere and would it help ?

Ideally the cleaning must be done twice, 1st is when you haven't replaced the AMT oil lets say 40K Km or 20K km when jerks are felt at low speeds. Once its done, drive the car for another 1K or 2K km and do it again. Because the accumulator will discharge the oil which has gone bad and it will directly affect the clutch actuation. The accumulator here acts like the head of a prawn or shrimp. Ive tried to mail on one of Magnetti Marelli India's mail Id, No response yet. I believe once the accumulator is replaced, problems will go away for another 35-40K km.

Regarding inline oil filter, There is no provision to add one.

[audioholic]

Originally Posted by mvadg

Great DIY!
Only part I don't like is that expensive AMT fluid. I think you could use cheap gear oil for flushing out the system and then fill it with the "real" AMT fluid.

Which means it is ordinary gear oil with extra additives.

I don't think the AMT fluid is anywhere close to the viscosity of the gear oil. The link you have posted is that of regular transaxle fluid which goes into the gearbox. But in case of the AMT of cars, the AMT fluid and gearbox oil are different and never connected. The viscosity of the AMT fluid is more like that of water, and not even engine oil. Hence if we use 75w90 oil here, I'm sure it will pack up the AMT oil pump in no time due to it's higher viscosity.

The fluid is expensive if you consider it's cost per liter. But the system only holds some 500ml of fluid. Changing this once every 40k kms is hardly an expense if it really prolongs the life of the AMT.

I feel apart from this the only thing that might be prone to the failure is the hydraulic pump, which is a 3k rupee part Rest of the transmission like the valves etc are pretty long lasting.

[sagarpadaki]

Originally Posted by audioholic

AMT actuator fluid was procured from Boodmo thanks to Leoshashi who found the part number and the link to the product as it is not listed in the parts catalogue. https://boodmo.com/catalog/part-amt_...0_ml-50726289/

Any idea if this AMT fluid can be used across AMT systems by Maruti, Tata,Mahindra etc? All of them use the same Magneti Marelli sourced AMT units IIRC

[audioholic]

Originally Posted by sagarpadaki

Any idea if this AMT fluid can be used across AMT systems by Maruti, Tata,Mahindra etc? All of them use the same Magneti Marelli sourced AMT units IIRC

I think so, they would be the same. However I am not sure. Moreover I blindly went with Maruti fluid since the last thing I would want to do is do a preventive maintenance that would later mess up what was working fine. Hence you could check with the respective manufacturer on what the recommendation is and only use this if that is unsuccessful.

[mvadg]

Originally Posted by mvadg

Great DIY!
Only part I don't like is that expensive AMT fluid. I think you could use cheap gear oil for flushing out the system and then fill it with the "real" AMT fluid.
I found this:
https://www.chevronlubricants.com/en...ae-75w-90.html

Which means it is ordinary gear oil with extra additives.

.

I don't think it is gear oil at all. Actuator fluid is different from gear oil. AMT transmission oil is different from AMT actuator (hydraulic?) fluid. Not easy to find the specs!

https://www.ravenol.de/en/product/hy...actuator-fluid

[blackstallion76]

Hi Friends,
Has anyone tried this procedure if it resolved AMT juddering or harsh gear changes. Pls share the experience. I still have juddering in cold starts and MASS is not able rectify it.

[blackstallion76]

Originally Posted by blackstallion76

Hi Friends,
Has anyone tried this procedure if it resolved AMT juddering or harsh gear changes. Pls share the experience. I still have juddering in cold starts and MASS is not able rectify it.

Hi Comrades,
Just wanted to update this query.
Did the AMT oil replacement at MASS. The cold start juddering is resolved for sure. Tested for almost 5 days every morning. Gear shifts has been smooth as well and very responsive. Car has done 26300+ kms only. Really happy with AMT response for now. Hope its not short-lived.

[Styler]

Hi Guys,

I got an IGNIS Diesel AMT for my daughter, to be sent to Bangalore in a few weeks.
It has the Judder when cold issue.

I spoke to my MASS and they tell me that they have not replaced the AMT Actuator fluid. They have topped up the oil if the oil seal leaks and they replace it.

The video posted above is no longer available. I found this video on youtube though.

https://www.youtube.com/watch?v=UAUhRqqiefk

Is this the correct process.

Regards
Styler

[lemedico]

Thank you for all the information provided on AMT kit servicing.

I have a late 2021 BS6 Tiago petrol with the dreaded AMT. I have driven it 16000kms and I'm due for the yearly oil service. This time, I really want to swap out the gear oil and the AMT fluid. I've noticed the level in the AMT reservoir is also rather low, an inch below maximum when the system is not primed. So yeah, I want to service it and at an FNG.

The problem is, I can't find any appropriate hydraulic fluid in the aftermarket or online. And certainly not able to find the company specified Petronas Tutela Cs speed.
Would you recommend using Ecstar, as that is freely available everywhere?

Also, keeping in mind how jerky the drive is, shall I go full monty and dismantle the kit, open up everything and deep clean it? My FNG mechanics have warned me it's too fragile and they aren't competent to do it anyway. If I goto Tata for the job, what would it nearly cost me?

[sagarpadaki]

Originally Posted by lemedico

Thank you for all the information provided on AMT kit servicing.

I have a late 2021 BS6 Tiago petrol with the dreaded AMT. I have driven it 16000kms and I'm due for the yearly oil service. This time, I really want to swap out the gear oil and the AMT fluid. I've noticed the level in the AMT reservoir is also rather low, an inch below maximum when the system is not primed. So yeah, I want to service it and at an FNG.

The problem is, I can't find any appropriate hydraulic fluid in the aftermarket or online. And certainly not able to find the company specified Petronas Tutela Cs speed.
Would you recommend using Ecstar, as that is freely available everywhere?

Also, keeping in mind how jerky the drive is, shall I go full monty and dismantle the kit, open up everything and deep clean it? My FNG mechanics have warned me it's too fragile and they aren't competent to do it anyway. If I goto Tata for the job, what would it nearly cost me?

Tata AMT fluid is available at all TASC. I got it replaced during 4th year service. Like audioholic mentioned, only partial oil can be extracted using syringe. Even the service center uses the same method. In case of my 2018 Tiago, around 500ml of oil AMT oil was extracted and replaced with fresh oil. I still have around 500ml left in the can. Will use it next time after a couple of years.

I do not see any value in changing gear oil. Tata recommended interval is 60k/5 years for gear oil change.

[audioholic]

Originally Posted by lemedico

Thank you for all the information provided on AMT kit servicing.

I have a late 2021 BS6 Tiago petrol with the dreaded AMT. I have driven it 16000kms and I'm due for the yearly oil service. This time, I really want to swap out the gear oil and the AMT fluid. I've noticed the level in the AMT reservoir is also rather low, an inch below maximum when the system is not primed. you recommend using Ecstar, as that is freely available everywhere?

Also, keeping in mind how jerky the drive is, shall I go full monty and dismantle the kit, open up everything and deep clean it? ?

You can top up the fluid if it's low. But I wouldn't recommend meddling further with the AMT. It's jerky because of its nature and even if you strip down the AMT and rebuild it it's not going to make any difference. The car is only two years old so the fluid won't be too bad either. You can change the fluid only if it has turned dark. Else just top up.

[lemedico]

Originally Posted by sagarpadaki

Tata AMT fluid is available at all TASC. I got it replaced during 4th year service. Like audioholic mentioned, only partial oil can be extracted using syringe. Even the service center uses the same method. In case of my 2018 Tiago, around 500ml of oil AMT oil was extracted and replaced with fresh oil. I still have around 500ml left in the can. Will use it next time after a couple of years.

I do not see any value in changing gear oil. Tata recommended interval is 60k/5 years for gear oil change.

Would they sell it over the counter? Is it their policy, like Maruti, to sell parts OTC?

Originally Posted by audioholic

You can top up the fluid if it's low. But I wouldn't recommend meddling further with the AMT. It's jerky because of its nature and even if you strip down the AMT and rebuild it it's not going to make any difference. The car is only two years old so the fluid won't be too bad either. You can change the fluid only if it has turned dark. Else just top up.

Its black indeed. More significant than the duration of ownership, I'd say the usage pattern would be of note. My car sees 6-7 short trips of 3-4 kms everyday. That too in bumper to bumper situations where the AMT is always switching between 1st and 2nd. 3rd gear is virgin territory

Would you recommend picking up Maruti Ecstar hydraulic fluid for my Tata? It's very easily available and I could then do the job immediately. Tata Agra has total tumours for service advisors who are cancerous to talk to. Absolutely I'll informed and non-chalant to customer issues. I'd really not want to go to them.

[sagarpadaki]

Originally Posted by lemedico

Would they sell it over the counter? Is it their policy, like Maruti, to sell parts OTC?

Yes, they do. Alternatively, get the part number and order it from Boodmo.

[lemedico]

Originally Posted by sagarpadaki

Yes, they do. Alternatively, get the part number and order it from Boodmo.

Tata Agra has sold this to me for ₹903. However, I am not convinced that this is AMT hydraulic fluid. It does t specifically say anything and the word transmission oil makes it seem dubious.

What do you suppose I do now?