Gearbox/Transmission oil leak

[Kix]

So since I got my XC70 I've noticed some sweating underneath, but after the car went for a normal service, there was droplets underneath and I could clearly see that it was pink transmission oil. Car was now leaving oil spots everywhere it went.

Checked the dipstick to make sure that I don't lose too much oil, I found that it was overfilled, A LOT!

Earlier this week I started looking for the "leak" and one of the guys at my shop told me that the gearbox could be pushing out ATF through a breather valve somewhere. Phoned the indy mechanic that worked on the car and he said that he thinks they may have topped up the ATF.

Anyway, I basically started to drain off some fluid to get the level back into speck. During the last three days, I must have drained off 1.5 litres of ATF and now finally the level on the dipstick was between Cold and Hot.

My dad took the car for a drive now, will check the level when he gets back and I'm hoping against all hope that the leak will be less or maybe cured.

[Astro14]

Over filled transmissions will bleed fluid from a vent.

More importantly, how are you checking the fluid level?

[Kix]

Checking via the yellow dipstick.

So far so good. No fluid to be seen after a 40km drive.

[Astro14]

I understand that you're using the yellow dipstick, but there are a few more conditions: trans at 80C, engine idling, car on level ground.

The trans is very sensitive to fluid level, and it only takes 200ml to go from add to full...

[Kix]

Indeed. Since the dipstick has hot and cold levels, I've done hot and cold tests.

Level seems fine now, will keep an eye on it for a while still.

[mopar2ya]

this may not need to be said but, tranny in neutral not park when checking the fluid.