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m3 erratic oil temperature gauge

1.1K views 3 replies 3 participants last post by  SCANDINAVIAN13  
#1 ·
having a problem with the oil temp gauge on the instrument cluster the needle is erratic and will not settle in one stable temp zone keeps moving up and down the scale , I have relaced the oil temp sender unit (screws into oil filter housing under the inlet plenum chamber) but no joy, any one got any idea what the problem may be ? thanking you in anticipation
 
#2 ·
I'd suggest trying to find a temp gauge at an auto parts store and checking to see if it gets an indication. From there, check to see it's a steady indication. I'm going to assume your engine isn't throwing erratic temps, so your sender is accurate and the problem is with the gauge.