ATF, How to change??

V6Matty

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Morning all

ok been doing a fair bit of checking and searching and can't seem to fine any "how to" on changeing the AFT on my 211. Anyone know how its done, any tips and approximate costs?
 
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V6Matty

V6Matty

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thats what i was looking for, wasn't sure if the 210 had the same box or not
 

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It's not a bad a job to DIY - I've done it twice on my car now.

Just be careful of the bolts holding the sump pan on...give them a fraction of a turn clockwise before undoing anti-clockwise.

Also if you are doing it flush the torque converter through with the fresh oil which is easy enough to do by breaking into one of the lines on the side of the bell housing and placing the pipe into a bottle whilst turning the engine over. You will see when the fresh ATF is coming through.
 
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V6Matty

V6Matty

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OK, not sure how comfortable i am doing that but will take a look this week, without doing that how much of the ATF will actually be changed?
 
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V6Matty

V6Matty

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OK will go the whole hog then, not worth it for only 50%, well my lob for the week will be spending some time under the car then :lol:
 

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You will get more than 50% out by cranking the engine, with the fuel pump fuse removed. More like 6 litres.
 

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pretty easy to do, BUT make sure the car is on level ground.

On the 7g box, spinning the engine over will not drag the fluid out of the torque convertor ( it does on the W210 that I had ), but easiest way is to simply refill the sump with new fluid & disconnect one of the rad ATF pipes & aim into a bucket, you then push the old fluid out.

I reckon I got at least 95% out.

Only consolation about the alu bolts are that they are easy enuf to remove as they are soft, but beware the g/box casing is magnesium IIRC ( so be gentle ).

Always put new bolts in and make sure the gasket face is clean enough to eat your dinner off. DO NOT SMEAR ATF on the face, it must be DRY.

then do the top up with engine running at the right temp ! :D

HTH :)
 
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oigle

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You will get more than 50% out by cranking the engine, with the fuel pump fuse removed. More like 6 litres.

Why not start and run it for a period until a couple of litres are pumped through, refill the sump and do it again. Much easier on the starter.
 
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V6Matty

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hmm, i was thinking that, would be interesting to see if emptying out, refilling with a couple of litres and then running and doing the procedure a couple more times would get a good amount of change? Doing the process say 3 times should in theory get a 80% change :confused:
 

oigle

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hmm, i was thinking that, would be interesting to see if emptying out, refilling with a couple of litres and then running and doing the procedure a couple more times would get a good amount of change? Doing the process say 3 times should in theory get a 80% change :confused:

I reckon if you ran 2 litres, stopped the motor, refilled, ran another 2 litres or so through, you would get 90+% out. What is pumping out is the contents of the torque converter and the oil cooling lines and cooler. The torque converter holds about 4 to 4.5 litres. When it starts to run clear, you have as good as you can get.
 
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V6Matty

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thanks, so repeating the procedure say twice should give a pretty good change :D

i know mine needs doing quite badly now, noticed over the last week that the box is getting a little noisy (bit of a whine)
 

oigle

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thanks, so repeating the procedure say twice should give a pretty good change :D

i know mine needs doing quite badly now, noticed over the last week that the box is getting a little noisy (bit of a whine)

Just be careful to not run it too long before topping up or the pump will run dry. 2 litres is enough at a time. If the fluid is still not clear after 4 litres, repeat the process again after another topup.
 

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Running the engine is too severe and not worth the risk and could cause damage. Cranking with the starter motor with the fuse removed to prevent starting is safer.

On initial drain, 2-3 litres will come out. Put sump plug back in, spin engine for 10 secs, remove drain plug again, more comes out, repeat a couple of time.

The centrifugal force of the flywheel does spin a lot of it out.

Try it and see.
 
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V6Matty

V6Matty

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OK next question if i run the starter, where is the fuse (number and location would be helpful) and will i see any errors after?
 
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Miffy

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when I had my atf changed, the indie just ran the engine with one of the oil cooler pipes disconnected "banjo union" with an adapter hose in place and stopped when the oil stopped pumping. It was only a matter of seconds.
 
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V6Matty

V6Matty

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didn't take any pics by any chance Miffy?
 

Miffy

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no :( But it was one of the oil cooler pipes from the gearbox(bell housing) to rad. But if you dont have a spare banjo connection to make up the hose then your going to make quite a bit of a mess
 
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