Drain Oil First?

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LeftFoot

Active Member
Posts
249
I'm getting a small leak from the oil pressure switch on my 300tdi def. I have acquired a washer to replace the one on the switch that I assume is worn. Given the position of the switch in relation to the sump I assume I wouldn't have to drain the oil before taking out the switch. Am I correct in this assumption. Would oil be pouring out or would I lose just a little when the switch is removed?
 
As an update:
I replaced the washer on the oil pressure sensor, tightened it back up and it's been three days far with no leaks.
Thanks for the advice.
Cheers.
 
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