Did a search- no luck-

I am pretty sure my W126 needs a tranny fluid and filter change. Are these pretty straight forward, or better left for a specialist? I changed the tranny fluid and filter in my old 83' Oldsmobile 98 when I had it (about 14 years ago) and it was simple. Remove the pan, remove the old filter, then install the filter, replace the pan and fill the tranny. Is it as simple on the W126, or are there any other "steps"/precautions that have to take place?

Thanks!

Need to drain the torque converter, here's a link.

Try searching ATF change - theres quite a few entries.

How to tackle Tranny fluid and filter replacement W126 420sel?

Cheers

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1988 W126 420 SE

beware of fundamentalists!

Thanks! I should have known there was ANOTHER step, being a Mercedes you know....

Easy, but somewhat messy job. I use a remote starter to flip the torque converter until the drain plug is accessible. The drain plugs on the pan take a ridiculously low amount of torque. Easy to overtorque and cut the filter gasket leading to a leak. Don't ask how I know.

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Tjohn

82 300 SD
77 450 SL (gone)

You said the "drain plugs on the pan." Don't you mean the bolts that hold the pan?

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1999 Mercedes-Benz S600, 103K miles - garage queen
1988 Mercedes-Benz 560SEL, 89K miles - daily driver
2007 Hyundai Sonata Limited, 31K - daily driver

Thanks. If I can get a local transmission to go it at a pretty reasonable rate, or our local MB independent shop, I may let them do it.


Not too keen on making a mess in the driveway. I just remembered that we changed the fluid/filter in my 73' Pontiac last summer (very simple), but it was very messy. Tranny fluid was all over the driveway where the car was setting.

Guilty. You'll notice I posted that at 2 am.

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Tjohn

82 300 SD
77 450 SL (gone)

If they used the same tranny in your car that is used in the 30SDL it is a easy change.
there is a drain plug in the pan and the tourqe converter.I use one of the large clear plastic storage containers.put it under and drain fluid.My pan had little metal bosses that made it inpossable to overtighten pan gasket unless you are Egor with a impact gun.

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89 Ford F3504x4CC 7.3 IDI turboed Intercooler and running on wvo now powered by a 1997 Cumins
87 300SDL on bio and wvo killed by chevy truck 5-24-06
1999 E300TD black with gray int.