CLS55: Transmission Fluid question ...
05-15-2010, 02:13 PM
#1
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CLS55 AMG
CLS55: Transmission Fluid question ...
Heya guys. Im just about to do my Transmission oil change and wanted to ask you for some help. I currently have the usual "ATF" oil inside my tranny, and have noticed that when the transmission is in MANUAL, sometimes the downshifts are quite rough, especially from 3rd to 2nd 
and its been getting worse recently.
I have downloaded an interesting PDF (see attached) and regarding transmission oil is states the followign
The oil i have Used is A 001 989 21 03 10.... what difference will it make if i bought the newer A 001 989 45 03 10? Do they have different properties? Can something go wrong if i replaced it with the new oil? Should i expect better gear changes
and its been getting worse recently.I have downloaded an interesting PDF (see attached) and regarding transmission oil is states the followign
For late model vehicles with the 7-speed transmission,
use only Mercedes-Benz Part Number
A 001 989 45 03 10 automatic transmission
fluid. This fluid can also be used for vehicles
with the 5-speed automatic transmission.
As an option, the 5-speed transmissions can
also use Part Number A 001 989 21 03 10 automatic
transmission fluid. However, this fluid
cannot be used in the 7-speed automatics.
use only Mercedes-Benz Part Number
A 001 989 45 03 10 automatic transmission
fluid. This fluid can also be used for vehicles
with the 5-speed automatic transmission.
As an option, the 5-speed transmissions can
also use Part Number A 001 989 21 03 10 automatic
transmission fluid. However, this fluid
cannot be used in the 7-speed automatics.
The oil i have Used is A 001 989 21 03 10.... what difference will it make if i bought the newer A 001 989 45 03 10? Do they have different properties? Can something go wrong if i replaced it with the new oil? Should i expect better gear changes
05-15-2010, 10:09 PM
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CLS55 AMG
05-15-2010, 10:44 PM
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2008 CLS63 AMG
Hmm i recommend using the fluid that is for the 5spd or whatever MB recommends. For my transmission flush, the dealer used what was specified for the 7speed. I hear flushing the 7 speed is a pain due to that fact that you have to wait till the transmission is cold. I dont know if MB has changed anything for the fluid but if you ask them im sure that they can hook you up. Is this the first flush for your cls?
05-15-2010, 11:14 PM
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Nope... I change tranny oil every 10000miles... I do drive like a lunatic though, and there are only 32 speed cams in the whole of my country , so that figures 
p.s. DAS shows that tranny needs 8 liters. I normally refill with 6.5liters, and that costs me 111$ + 10$ for oil filter and 16$ for new seals. It really has to cool down overnight and the job costs around 60$
Well, i always keep a bottle handy after swaps, so i am sure to order the correct stuff. Question is i really want to try the new A 001 989 45 03 10 ... any ideas?
(pls look at attachment)
p.s. DAS shows that tranny needs 8 liters. I normally refill with 6.5liters, and that costs me 111$ + 10$ for oil filter and 16$ for new seals. It really has to cool down overnight and the job costs around 60$
(pls look at attachment)
Last edited by 0700700; 05-15-2010 at 11:19 PM.
12-07-2020, 02:27 PM
#7
Best method I found
Heya guys. Im just about to do my Transmission oil change and wanted to ask you for some help. I currently have the usual "ATF" oil inside my tranny, and have noticed that when the transmission is in MANUAL, sometimes the downshifts are quite rough, especially from 3rd to 2nd and its been getting worse recently.
Check this Youtube link out, I found it to get me through my flush. https://www.youtube.com/watch?v=tSTxTw5PxYk
I have downloaded an interesting PDF (see attached) and regarding transmission oil is states the followign
The oil i have Used is A 001 989 21 03 10.... what difference will it make if i bought the newer A 001 989 45 03 10? Do they have different properties? Can something go wrong if i replaced it with the new oil? Should i expect better gear changes
and its been getting worse recently.Check this Youtube link out, I found it to get me through my flush. https://www.youtube.com/watch?v=tSTxTw5PxYk
I have downloaded an interesting PDF (see attached) and regarding transmission oil is states the followign
The oil i have Used is A 001 989 21 03 10.... what difference will it make if i bought the newer A 001 989 45 03 10? Do they have different properties? Can something go wrong if i replaced it with the new oil? Should i expect better gear changes
