Just change tranny fluid, or flush it?
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From: Republican Wasteland
HPF E46 M3 Turbo, LET C32 AMG
Just change tranny fluid, or flush it?
Ive been browsing through some archived threads looking for the answer to this question. This is only the second auto tranny ive ever had (the first was in a CLK, and it blew up. which made me swear id never buy another MB), some im pretty unfamiliar with the protocol.
Car has 78K on it, tranny has 20K on it ( i have no idea why, but the dealership replaced it in this car at 58K...long before i bought it) .
Should i flush it, or just drain and fill?
Thanks!!!
Car has 78K on it, tranny has 20K on it ( i have no idea why, but the dealership replaced it in this car at 58K...long before i bought it) .
Should i flush it, or just drain and fill?
Thanks!!!
Last edited by SETSEROCK; Jul 16, 2010 at 07:55 PM.
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From: Bay Area
03 C32 gone, 06 CLS55, 16 Tesla X
With my personal experience, changing the fluid is good enough. You may also want to change the filter, oil pan gasket and electric cap/o ring where you are there.
If you do the full flush you may see about 8 quarts. If you just drain it, probably 4-5 quarts.
If you do the full flush you may see about 8 quarts. If you just drain it, probably 4-5 quarts.
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From: Republican Wasteland
HPF E46 M3 Turbo, LET C32 AMG
If you just drain it, will all of it not come out? How hard is it to get to the filter? I have torn a few manuals apart, but I've never personally seen the inside an auto before.
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From: GA
2016 Chevrolet SS, 2006 Cadillac STS-V
It really isn't worth it to flush these transmissions. You get a better bang for your buck doing a service. Just drop the pan and replace the filter and about 4-5 quarts. I had enough extra fluid left over from my service I'm probably going to do a drain and fill next oil change (just pull the pan drain plug and top off).
EDIT: Here is a very good how to along with all the parts you'll need: http://www.benzworld.org/forums/w210...ion-fluid.html
EDIT: Here is a very good how to along with all the parts you'll need: http://www.benzworld.org/forums/w210...ion-fluid.html
Last edited by 91RS; Jul 17, 2010 at 06:32 AM.
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From: tampa fl
02 c32 amg 94 3000gt vr4
just change it, along with the pan gasket and filter...you should never flush a cars transmission unless youve been doing it every 20-30k miles since it was brand new. it will only cause problems
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From: murfreesboro,tn
2003 porsche 996 turbo
drop the pan and drain the fluid (4 qts.) replace filter and gasket. disconnect the rubber to hard line from the tranny ( the connection is rite next to the oil pan) and stick it in a gal jug. start the car and shift thru all the gears for a few secs. in each gear. go to rev. and back to drive a few times. you should get 4 more qts fluid in the jug. reconnect the line, refill with fresh fluid and you have replaced 90% of the fluid in the tranny.
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From: Republican Wasteland
HPF E46 M3 Turbo, LET C32 AMG
it wont hurt anything to run it for a minute on half its fluid? Does doing this get the fluid out of the torque converter? and how do you shift through the gears with the car parked?
How does the dealership flush it BTW?
How does the dealership flush it BTW?
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2016 Chevrolet SS, 2006 Cadillac STS-V
That doesn't sound like a good idea to me. I can't say if the dealership offers a flush (a.k.a. fluid exchange), but that works by disconnecting a trans cooler line and hooking a machine in line with it. The machines I don't recommend have their own pump which forces the new fluid through and replaces with old. The right way that will not damage the transmission in anyway (or stir up debris) is the machine that uses the transmissions own pump to replace the fluid. It just captures the old fluid from the cooler line and replaces with new in it's place.
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From: Republican Wasteland
HPF E46 M3 Turbo, LET C32 AMG
So flushing may not be a good DIY candidate?
What about just draining it, filling it back up with 4ish quarts and then just repeating the process a week later?
And is the filter easy to get to? And if there are metal shavings, will they be pretty evident?
What about just draining it, filling it back up with 4ish quarts and then just repeating the process a week later?
And is the filter easy to get to? And if there are metal shavings, will they be pretty evident?
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a C32 AMG & S-Works Tarmac
A search of the forum, of one of our esteemed masters, led me to this old post:
https://mbworld.org/forums/c32-amg-c...n-service.html
Thank splinter for this one.
https://mbworld.org/forums/c32-amg-c...n-service.html
Thank splinter for this one.
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Not an AMG :(
A search of the forum, of one of our esteemed masters, led me to this old post:
https://mbworld.org/forums/c32-amg-c...n-service.html
Thank splinter for this one.
https://mbworld.org/forums/c32-amg-c...n-service.html
Thank splinter for this one.
As Splinter alluded to in his thread, it may be worth your while to have your transmission fluid tested for glycol content.
That will likely influence your decision to 'flush' versus 'drain and fill'.
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From: Phoenix AZ & Cayucos CA
’27 AMG SL55(ordered), ‘23 EQS 580 SUV, ‘19 AMG E53 Cpe, ‘48 Willys Jeepster
I figured I'd changed about 40% of the total volume, so repeated the process to get mostly new fluid in there. I didn't feel like tempting the gods by messing around with cooler lines for the flush.
