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Auto gearbox oil.

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Old Feb 24th, 2021, 18:08   #1
kmas
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Default Auto gearbox oil.

Hi all, is my 2006 C70 2.4i auto gearbox sealed? Does the oil need to be changed at any point?
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Old Feb 24th, 2021, 19:20   #2
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Transmission fluid should be changed. It doesn't have to be changed every single year, but definitely something that you should do every so often throughout your ownership to prolong the life of the transmission.

Volvo & other manufacturers claim the transmission's in their vehicles are "sealed" or "sealed for life", yet they have drain plugs...

The fluid can be drained, as there's a drain plug... so "sealed" is a load of rubbish. There isn't an interval as such for changing the fluid, as Volvo (and other companies) don't suggest changing it at all. This is misleading, as servicing your transmission will definitely help it. You wouldn't own a car & never change the engine oil... why they think its okay with the transmission is beyond me.

Make sure you use the correct spec fluid for your car & nothing else. To answer your question... YES... CHANGE THE FLUID.

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Old Feb 24th, 2021, 20:01   #3
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Volvo itself does acknowledge the need to change the ATF, but only in cases of 'arduous operations', as it terms it (hot, dusty, taxis, towing - I may have made one of those up, but you get the drift), and IIRC on a remarkably short cycle like 24K miles.

...and yet says nothings required for normal operation, which is simply nonsense, as evidenced by the majority of other marques which use the AW55 'box. So yes, do it.
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Old Feb 24th, 2021, 21:45   #4
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Quote:
Originally Posted by kmas View Post
Hi all, is my 2006 C70 2.4i auto gearbox sealed? Does the oil need to be changed at any point?
depending on how it has been driven, kind of traffic its been in,, etc etc
somewhere between 80k-100k miles = look to change it

All the advice says
"Do NOT have a Power flush performed"
"Do NOT use flusing fluids"
"Do use the Correct spec ATF"




the "gibbons" method where you take 3l (ISH) out of the transmission sump + refill with The exact amount you took out , check levels, drive (varies between a 100/200/400 you choose) then do it again, for a total of 3 dumps/refills
is the General consensus on these autoboxes.



Most of the Other manufactures who use the AW55 box we have Do have a ATF change schedule.


best to get it done Before any issues start showing up as by the time they do it Maybe to late
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Old Feb 25th, 2021, 14:06   #5
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Thank you all for replies. The car has done 67k miles and has towed previously.
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Old Feb 25th, 2021, 15:05   #6
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Quote:
Originally Posted by kmas View Post
Thank you all for replies. The car has done 67k miles and has towed previously.
On my experience (mine had 75k, no tow bar) the fluid will probably be filthy. So drop it and replace a couple of times.

Also, do the haldex unit whilst under there.
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Old Feb 25th, 2021, 15:14   #7
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Yes. Service interval is c60k for Saabs et al anyway.
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Old Feb 25th, 2021, 15:59   #8
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Yes. Service interval is c60k for Saabs et al anyway.
Is it 60k for the haldex or auto box out of interest?
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Old Feb 25th, 2021, 16:43   #9
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Is it 60k for the haldex or auto box out of interest?
'box - not sure about the 4wd Saabs' Haldex schedule
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Old May 4th, 2021, 11:13   #10
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Quote:
Originally Posted by andy_d View Post
depending on how it has been driven, kind of traffic its been in,, etc etc
somewhere between 80k-100k miles = look to change it

All the advice says
"Do NOT have a Power flush performed"
"Do NOT use flusing fluids"
"Do use the Correct spec ATF"




the "gibbons" method where you take 3l (ISH) out of the transmission sump + refill with The exact amount you took out , check levels, drive (varies between a 100/200/400 you choose) then do it again, for a total of 3 dumps/refills
is the General consensus on these autoboxes.



Most of the Other manufactures who use the AW55 box we have Do have a ATF change schedule.


best to get it done Before any issues start showing up as by the time they do it Maybe to late
i must admit i am struggling in my head on the atf change.

my 2.4 petrol auto transmission is just under 230k miles. never changed the atf - just blindly did not think about it given the operating manual.

in the last few months the transmission begun rumbling at times, whining at others - but still goes through gears without trouble.

i got in touch with the local specialist who does transmissions only - nothing else. they basically said - sit tight; no issues with gear changes then do not touch it, otherwise you might cause more issues that you are trying to solve.

granted they are not volvo specialists, but they ARE transmission gurus.

any practical input, especially if anyone has been without atf change for as long or longer?
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