Just checked the ATF level in my 92 740 wagon. It was way over the high mark on the "hot" scale, and the engine was cold. I'm ashamed to say I have had the car some time and only just checked it. Obviously nothing serious has happened. Can I drain some oil somehow or does it have to be sucked out? And can it do damage or impair the operation ? It all seems to change at the right speeds and conditions.

I don't know if anyone is still watching this thread, but don't drain anything.

The behavior you mention is normal... depending on how and when you check the fluid level. The car is supposed to be running and it should have recently been driven. When checking, have the car in park, wipe the stick, and check it quickly. The level gets thrown off by either sitting in one place or failing to check immediately after driving with the engine running.

Try checking as recommended in the manual and you will probably find that it's in the correct range. If it is above the normal range, but is not leaking, don't drain, it's fine. The trans will eject a serious overfill.

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Chris Herbst
Phoenix, AZ
2005 S80 40k
1992 940 152?k

I think before I would drain any, I would do the check properly. ie, hot transmission.
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Post Back. That's whats makes this forum work.

No harm done. Just remove ATF drain plug below car and let it all run out into an appropriate container. 3 quarts+ will come out. Refill with 2.5 quarts. Bring to proper temperature and check level with car in park and e-brake applied, while on nice level ground. Add small amounts as needed to bring to perfect level.

Maybe I'm really dense or blind, but I've never noticed the transmission having a drain plug...

The two times I've swapped the fluid I dropped the pan, then used the radiator ATF lines. Is the drain plug not on the pan itself? I have an AW-70.

William
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1990 740 Turbo, on its way to stock specs, maybe beyond

Hi Will
Yep drain plug right in middle of pan.
Matt