Thought I'd post up my how to after doing a drain and fill yesterday on our 01 V40. I was mostly worried about the potential mess this was going to make since the ATF drain bolt is very close to the engine support cross member that runs right next to it.
I think the bolt takes a 24mm wrench but I just used an adjustable one.
Here's what I needed to ge the job done:
-- adjustable wrench
-- (2) 5 quart buckets
-- replacement crush washer for the drain bolt
-- make shift funnel for draining
-- funnel for refilling
-- magnet pickup tool
I picked up a couple 5 quart buckets from the hardware store....one for the dirty ATF drained out and one for clean ATF put back in. Label them so you can keep them straight for future ATF drain and fills. It also helps to get a lid for the clean bucket so you can keep it clean in between drain and fills.
In order to avoid the mess, I got crafty and made a make shift funnel out of an old paint roller pan. On the left of the photo is what I cut out from another pan.
Putting one of the 5 quart buckets on blocks of wood, I positioned it under the drain bolt after initially loosening it with the wrench. I then wedged the make shift funnel in between the drain bolt and the cross member. Holding the make shift funnel with my left hand to make sure it didn't slip or fall, I then used my pick up magnet tool with my right hand to slowly turn by turn remove the drain bolt.
Suprisingly this worked perfectly and made zero mess. ATF flowed perfectly into the bucket. It drained about 3.5 quarts.
Then use the clean bucket to match the same amount taken out to be put back in. You can see how dirty the old ATF fluid was. Then use the real funnel to refill the ATF through the ATF dipstick tube.
That's it. Hope this helps someone out in the future.