oil sensor defective - Mercedes-Benz Forum
 
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#1 (permalink) Old 01-05-2013, 11:40 AM
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Date registered: Dec 2010
Vehicle: 1999 E320
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Question oil sensor defective

Happy New Year to one and all!

I have a '99 E320 with 155K miles and recently get an error displayed of "oil sensor defective". What is the car trying to tell me? Which oil sensor is being referred to me for replacement?

The car works great, with the worst issue being a saggy headliner.

Thanks for your time and assistance.
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#2 (permalink) Old 01-05-2013, 04:24 PM
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What is the code?
Most likely it is oil level sensor, as oil pressure sensor would send red warning.
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#3 (permalink) Old 01-05-2013, 08:36 PM
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ok, so how do I get the code to display? I looked on the forum and can only find the list of codes and their meaning, not a way to get the code number displayed . Can you help direct me? thanks for the info.
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#4 (permalink) Old 01-05-2013, 08:57 PM
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I have a '98 E320 with 188k miles. I just got the red display with this message ("oil sensor defective") upon starting the car after not running the car for 3 days when temps were in the teens F. I wasn't unduly alarmed, assuming it was cold-related. Sure enough, after resuming daily driving in the same temps, I didn't get the alarm again.

Hopefully your situation is just cold-related?
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#5 (permalink) Old 01-05-2013, 10:15 PM
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To get code number you need code reader.
They start at $20 for computer-based and go up depends on features.
With our cars aging and with the number of electrical/electronic plugs they have we can expect more and more electric glitches showing up. Learn that yellow warnings usually let you driving, while red codes often means you should immediately pull over and shut the engine down. They are variations, so have the manual handy.
I am hunted by fuel temperature sensor code on my diesel for last 4 years. I cleaned the plug very well with MAF cleaner and it kept it quiet for 2 years. You might try the same on your sensor.
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#6 (permalink) Old 01-06-2013, 12:42 PM
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ok thanks for the info. The sensor message has shown up regardless of outside temp. Where do you get a code reader,ebay?
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#7 (permalink) Old 01-07-2013, 10:27 PM
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Cheap

I am cheap, I go to Autozone, hand them my DL and they give me the scanner and I plug it into the port just under the steering wheel.
Pull all the codes and clear them.
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