V70 2.5T AWD transmission leak

reigox · Post by **reigox** » 25 Dec 2023, 17:17

Hey, i have a problem with my transmission, it is leaking from the weep hole and from one other place aswell, i don't know what it is called.
It happened right after i drifted a little bit on the snow, a lot of transmission oil just leaked out on the ground, i checked the dipstick right after it happened and it was bone dry. Pulled it to a garage, checked the dipstick 2 days later (with a cold engine and transmission) it was even over the HOT line. How is this possible? What could be the explanation?

Post by **jonesg** » 25 Dec 2023, 22:44

are you sure its trans fluid, not engine oil from the rear main seal.?

Post by **MoVolvos** » 25 Dec 2023, 23:15

reigox wrote: ↑25 Dec 2023, 17:17 Hey, i have a problem with my transmission, it is leaking from the weep hole and from one other place aswell, i don't know what it is called.
It happened right after i drifted a little bit on the snow, a lot of transmission oil just leaked out on the ground, i checked the dipstick right after it happened and it was bone dry. Pulled it to a garage, checked the dipstick 2 days later (with a cold engine and transmission) it was even over the HOT line. How is this possible? What could be the explanation?

Are you checking with the engine running or off? Checking when hot or cold will show level differences on the dipstick also. I believe you should be check the trans fluid when with engine on. Be sure it's not engine oil per "jonesg". Transmission fluid is not that thick and has a different flow characteristics. That's why it's transmission fluid not oil as in motor oil.

Lastly, do a smell test.
.

reigox · Post by **reigox** » 27 Dec 2023, 13:54

It is transmission fluid 100% Im not sure what i should do next

Post by **MoVolvos** » 27 Dec 2023, 23:28

reigox wrote: ↑27 Dec 2023, 13:54 It is transmission fluid 100% Im not sure what i should do next

.
Did you drift into anything? The first thing you can do is try a bottle or two of a seal rejuvenator such a AT 205. If the problem is lessened then you know it's a seal otherwise something cracked or a hose somewhere perhaps. Without digging around the engine bay from the top to bottom and checking the lines of the transmission I would say your guess is as good as mine.

Post by **vtl** » 28 Dec 2023, 10:21

ATF fluid level check is performed with the engine running.

The explanation could be the last guy who changed the fluid didn't know how to do it right and overfilled it. Warm it up, check the level. MIN is where it should be at 40 degrees Celsius, MAX is at 80.

reigox · Post by **reigox** » 28 Dec 2023, 21:42

Ill check the transmission fluid then when its running and warm. I didnt drift into anything, just randomly felt a weird smell and saw that a lot of transmission fluid was on the ground.

Post by **wheelsup** » 31 Dec 2023, 19:24

If it is where the transmission and engine mate, there is most likely a pump seal that is going bad.

reigox · Post by **reigox** » 01 Jan 2024, 16:22

Should i just take off the transmission and check it out visually, change seals that need to be changed? This is my only idea what to do, Is it the best option?

Post by **jonesg** » 03 Jan 2024, 10:54

before dropping trans I'd have a mechanic put it on a lift and inspect it, they're good at finding leaks.