After owning my 2003 Jaguar XJR for two weeks, I have found a leak that appears to be coming from the Oil Pressure Sending Unit. Does anyone have a diagram as to where it is located and what size wrench (spanner) I need to remove and replace it? does it require a washer also? Thank you in advance and be kind to a newbie (me).

 

Firstly welcome to real world.

Your 2003 belongs elsewhere, BUT, fear not, we have all done this in the past when we were newbies.

The 2003 is at the change point.

4ltr V8 is X308.

4.2ltr V8 is X350, and Aluminium body.

Repost would get a real quick answer, coz I dont know the answer on the V8.

One of the moderators will see this, once Christmas hangover dissipates, and move it for you.

 

It is just north of the oil filter mounting pad.

On a 2003/XJR there may be two devices mounted there. The oil pressure switch and the oil temperature sender.