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1995 Audi A6 No Oil pressure or Engine Temp on gauges

Tiny
RHODESRT
  • MEMBER
  • 1995 AUDI A6
  • 6 CYL
  • AWD
  • MANUAL
  • 122,000 MILES
I recently bought an A6 and the oil pressure gauge and engine temp gauge are flat even after running the car for a while. The car seems to start and run fine but I am concerned about these readings. Are there any tests I can do to troubleshoot whether I am having an instrument issue or a real mechanical issue. If it is an instrument issue, how could I go about diagnosing and fixing the problem. Thanks for any suggestions.
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Tuesday, December 22nd, 2009 AT 12:53 PM

1 Reply

Tiny
TERRIBLE HERBST
  • MEMBER
  • 6 POSTS
I believe your oil gauge is the oil temp, not pressure. Anyway, the multi-function temp sensor and oil temp sensor are probably the cause, as was the case with my '95 A6 2.8L V6. The temp sensor is important since other than communicating to your dash gauge, it also kicks on your radiator fans (both of them) and car can overheat when switch is dead. View the first two diagrams in the attached link under (component location). Both are reachable with some removal of the plastic top cover and getting under the car for the oil temp gauge.

https://www.2carpros.com/topics/electrical/oil-pressure-gauge
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Sunday, March 21st, 2010 AT 12:33 AM

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