I was replacing my small radiator fan last week and noticed some oil residue on the engine undercover tray which appears to have dripped down from the oil filter housing. I wiped the housing clean, put the undercover tray back in place, and now need to go back and investigate closer as I've noticed the car is now leaving a oil stain on my driveway.
At the risk of asking an obvious question... If it is the oil filter housing that is weeping oil and it needs replacing - can I just drain the filter and remove the filter housing to replace with a new housing / seal and filter without emptying the entire oil contents of the sump, etc? The car was serviced back in April so I've no desire to drain the entire oil contents if I don't have to.
I think the part number is 06D115408B for the filter housing if you want to google the part I am talking about, but will get VW to confirm when I get a price from them.
Thanks in advance...