V70 G/box: 2WD: - M66 oil leak

pmcatominey · Dec 1st, 2020, 17:27

Hi,

I changed the transmission oil, as with no recorded service history since 2015 and 236k on the clock it was due. The engine undertray was thick with oil/dirt and the transmission itself was coated in oil.

After opening the plug, only 500ml of old oil drained out, and it took 1.9L of new oil to fill which is correct according to the spec in VIDA. So it's likely been leaking and low for some time.

After about a week since changing it, I found a small patch of oil under the car so the leak is still present and wasn't the plug as I had hoped. Is there any common/expected points to check on this transmission?

cheshired5 · Dec 1st, 2020, 22:29

If you're certain that it's transmission oil, check around both driveshaft seals for wetness.

pmcatominey · Dec 2nd, 2020, 17:01

I think from looking at it that the seals might be the source, I'll clean the whole area up and then check to see where oil appears.

harveys · Dec 2nd, 2020, 22:11

Possibly the turbo leaking down onto lower parts , hoses look wet.

pmcatominey · Dec 2nd, 2020, 23:53

It smells of transmission oil but maybe theres more than one leak on the go here, I've included a few more photos with a wider angle.

Dec 1st, 2020, 22:29	#2
cheshired5 Premier Member Last Online: Dec 26th, 2021 13:42 Join Date: Dec 2013 Location: Crewe	If you're certain that it's transmission oil, check around both driveshaft seals for wetness. __________________ 2002 S60 SE D5 Manual 209000 miles

Dec 2nd, 2020, 22:11	#4
harveys Master Member Last Online: Feb 10th, 2022 22:33 Join Date: Jul 2007 Location: newton abbot in sunny Devon	Possibly the turbo leaking down onto lower parts , hoses look wet. __________________

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