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Oil Temperature Sensor LOCATION - 99 2.8L

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Old 09-25-2009, 08:14 PM   #1
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Default Oil Temperature Sensor LOCATION - 99 2.8L

Does anyone have a good image of the oil temperature sensor location for a 1999 A6 2.8L?

My gauge doesn't move and fixing this is the next project I want to entertain. I have the Bentely Service manual but it doesn't give a very good description of where this is located. All I know is that is half way up the front of the engine of the drivers side. Again, pictures would be very nice...

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Old 09-26-2009, 03:26 AM   #2
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Sensor rarely fails. Have you done any diagnosis with VAG-COM?
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Old 09-26-2009, 09:01 AM   #3
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It is on front of engine, immediately to the right of crankshaft, between crankshaft and AC pulleys, just below the belt tensioner and therefore might be hard to spot when looking from above.

Anyway, use http://www.vagcat.com/epc/ (register) to see diagrams.

Thanks.
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Old 09-26-2009, 10:10 AM   #4
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Quote:
Originally Posted by 4Driver4 View Post
Have you done any diagnosis with VAG-COM?
I don't have the VAG-COM software at the moment so I haven't diagnosed. Anyone in Pullman, WA/Moscow, ID area with VAG-COM?

I'll give you a run down of the symptoms: When the car is turned on I can see the oil temperature gauge move slightly. But is stuck of the most left position (indicating the coldest oil temp). A couple of weeks ago I drove it 300 miles including climbing over a mountain pass and the oil temp gauge never moved. I'm positive the oil was hotter than the gauge indicated.
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Old 04-06-2010, 10:35 PM   #5
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Sensor rarely fails. Have you done any diagnosis with VAG-COM?
I finally purchased VAGCOM. Hooked it up to the car and tried to see if the software would give me a temperature reading for the oil. I couldn't get a reading at all, essentially it said 0.0.

Are there any additional ways to test the oil temp sender with VAGCOM?

Does anyone know the wire route to the ECU?

Any input is appreciated.
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Old 08-13-2010, 11:35 AM   #6
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I have this EXACT issue ..I would imagine grounding the sender wire would peg the guage .. or defect it to maximum when disconnected ... the dissapointing part is I just did a timing belt after starting the car and it was probably right htere in front of me for testing doh !!!!
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Old 08-13-2010, 04:44 PM   #7
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update,,,, My 2000 for sure has the oil temp built into the oil level sender and must be replaced with OE unit ( Hella) . Others WILL NOT WORK >..
here is a link to the site with the cheapest one I found.. will update again after my next oil change ..

http://www.europaparts.com/oil-level...j0907660b.html

Last edited by Airbag; 08-14-2010 at 12:31 PM.
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Old 08-13-2010, 06:30 PM   #8
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Thanks! I've been looking for this. I just ordered one myself.
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Old 08-14-2010, 12:47 PM   #9
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your welcome . just don't grab the last one before my order ships out
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Old 01-20-2011, 09:18 PM   #10
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Default Similar issue

I have a 2001 2.7t and had a similar issue. The oil sensor light would go on and off and the temp gauge would stop working when the sensor light went on. i replaced it with a sensor made by Meyle, the sensor light stayed off but now the oil temp gauge doesnt work. I plan on buying the oem part now. I know this post is long after the original, but for anyone considering the cheaper replacement oil level sender... DONT DO IT! buy oem.
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Old 01-22-2011, 11:49 AM   #11
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Quote:
Originally Posted by A6force View Post
I have a 2001 2.7t and had a similar issue. The oil sensor light would go on and off and the temp gauge would stop working when the sensor light went on. i replaced it with a sensor made by Meyle, the sensor light stayed off but now the oil temp gauge doesnt work. I plan on buying the oem part now. I know this post is long after the original, but for anyone considering the cheaper replacement oil level sender... DONT DO IT! buy oem.

Did this fix your problem? I'm having the exact problem with my 2001/2.7t: sensor warning light is off after sensor replacement, but now the gauge doesn't work! I'm baffled big time.
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Old 01-25-2011, 09:01 PM   #12
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Did this fix your problem? I'm having the exact problem with my 2001/2.7t: sensor warning light is off after sensor replacement, but now the gauge doesn't work! I'm baffled big time.
What company makes the sensor you bought?
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Old 01-27-2011, 06:36 PM   #13
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HELLA only rest are junk
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Old 02-02-2011, 12:42 PM   #14
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What company makes the sensor you bought?
Meyle made it! Piece of crap. Pulled it out and put in the OEM (Hella), and everything works great now. This thread has been a great help by making the troubleshooting easy.
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Old 03-24-2012, 09:37 PM   #15
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Quote:
Originally Posted by Airbag View Post
update,,,, My 2000 for sure has the oil temp built into the oil level sender and must be replaced with OE unit ( Hella) . Others WILL NOT WORK >..
here is a link to the site with the cheapest one I found.. will update again after my next oil change ..

http://www.europaparts.com/oil-level...j0907660b.html
Is yours the 2.8 or 2.7t. mine is also a 2001 but should be the same. the audi dealership sold me a little plug type thing that is the oil temp sensor. can't find the bugger anywhere is it truly inside that oil level sensor on the bottom of oil pan?
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Old 03-25-2012, 01:52 PM   #16
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Mine is a 2.8

Crawl under the front of the car and look at the oil pan . oh I think you might have to take off the under body tray not sure. You will see the sender in the pan bottom.
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Old 05-26-2012, 06:58 AM   #17
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Default 2000 a6 2.8L - AHA

Hope I'm not waking a dead thread here.

I've got a good but leaking sender, but my engine has it mounted on the top of the oil filter/ oil cooler feed ports.

My pan is completely smooth - no sender.

I'm losing about .5 qt/day. (Sometimes none - same commute...weird)

Anyone else in that position? I think mine is a single pole (wire) threaded type sender rather than the 3-bolt pan mounted version.
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Old 05-28-2012, 05:54 AM   #18
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Originally Posted by torrentpoker View Post
Hope I'm not waking a dead thread here.

I've got a good but leaking sender, but my engine has it mounted on the top of the oil filter/ oil cooler feed ports.

My pan is completely smooth - no sender.

I'm losing about .5 qt/day. (Sometimes none - same commute...weird)

Anyone else in that position? I think mine is a single pole (wire) threaded type sender rather than the 3-bolt pan mounted version.
It should be to the right of the crank shaft pulley. It's pretty hard to get to with out putting the front end into service position. How sure are you that this is the source of your oil leak?

see this tread: http://forums.audiworld.com/showthre...il+temp+sender
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Old 05-28-2012, 06:23 AM   #19
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Quote:
Originally Posted by torrentpoker View Post
Hope I'm not waking a dead thread here.

I've got a good but leaking sender, but my engine has it mounted on the top of the oil filter/ oil cooler feed ports.

My pan is completely smooth - no sender.

I'm losing about .5 qt/day. (Sometimes none - same commute...weird)

Anyone else in that position? I think mine is a single pole (wire) threaded type sender rather than the 3-bolt pan mounted version.
I think that's your oil pressure switch, not the oil temp sensor like on the 2000 and earlier cars. The oil temp sensor is next to the crank pulley on the driver's side.
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Old 05-28-2012, 06:23 AM
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18t, 1999, 2000, 28l, 42, a4, a6, audi, engine, locate, located, oil, s4, sensor, temp, temperature, v6


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