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Discussion Starter · #1 ·
I currently have a 2006 Volvo S60R.
This past weekend my car briefly gave me a "low oil" notification then went away. I check the oil and my dip stick showed me the oil level was OK but bordering low so I added a quart and checked again. Now the oil is nearing full.
After I added the oil to my car I noticed that the oil temperature gauge was no longer working, the car seemed to have considerably lower performance and switched gears at much higher RPMs. The engine fan seemed to be blowing nonstop at full blast as well.
I took my car to a local foreign cars specialist who informed me that the issue was some sort of safety procedure the car goes into when it has low oil to avoid damaging itself. He then reset the car so to speak so it would go out of this safety mode for the low, low cost of $135. /S
The car seems to be running perfectly now with all symptoms no longer present.
My question is, in the future, is there some procedure I can do myself to avoid having to spend that much money for something that seemed so simple to fix?
I have minimal experience and knowledge of cars but would like to start doing whatever work I can do myself as necessary.
Thank you all!
 

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That is not an oil temp gauge, its a water temp gauge. The problems you describe are from a bad temp sensor, nothing to do with your oil level, the car will let you drive with no oil at all till you blow it up if you want to.

Sorry to tell you this mechanic fed you a line of BS or you understood him incorrectly. Perhaps he changed a bad temp sensor for $135 or you have been charged for nothing and the problem will eventually return when the temp sensor flakes out again.
 

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Is your motor consuming more oil than normal , what weight oil are you using ?
Your car went into ''limp mode'' because it saw that you were too low on oil, reduces performance on purpose until you reset the codes in the computer by doing this ->

And please... DO NOT go to the dealer to get the car ''reset'', it's the first thing you should know by yourself on your R. Pull the battery cables and clean up the posts with a wire brush while in there, let the cables sit out for 30 minutes to let all the ecus plenty time to drain out of power. Touch the two cables together for 10 seconds to make sure all power is drained, turn the key to position 2, wait a minute and reconnect the cables.

( The fuse method does not reset all computers in the car, but it will reset the main ecu )

Your car will be learning everything again for a few drives, you would also want to buy a ''Vida Dice'', you can scan the car with it and see everything on a laptop to get any codes etc. A sensor would throw a nice internal code if it was going bad and you would see it with vida dice, you fix the problem yourself and then nicely reset the code via vida dice and everything is clear, simple as that.

Hope this helps !
 

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He probably just reset your ECU, not sure of the correct fuses on an 06 but you just needed to pull then & try to start the car to reset the ECU. You also could have disconnected the battery for 30 min to do the same thing
 

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He probably just reset your ECU, not sure of the correct fuses on an 06 but you just needed to pull then & try to start the car to reset the ECU. You also could have disconnected the battery for 30 min to do the same thing
Pulling fuse #6 and #23 from engine fuse box and trying to start the car will only reset the main ECU, which store the codes. Pulling the battery cables is the proper way to reset the WHOLE system completely.
 

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Discussion Starter · #8 ·
The Rep at the shop said he doesn't think there is anything wrong with the sensor... I'll just have to wait and find out now.
I wasn't billed for a new sensor on the receipt. $90 for the inspection based on the symptoms I gave them and another $45 to re-program the car. (This is from memory)
I will have to double check when I get home from work.
 

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Then you were ripped off in my opinion. Next time this happens call around to a few shops to tell them it appears you have a bad temp sensor if you don't think you can do the job yourself, and don't include this one in the shops you call around to.
 

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A lot of people with 06 Rs have reported this problem over the years. For some it has required new ECM software. For others simply resetting the ECM seems to have fixed this when it popped up. See this thread (and the further thread that it links to): LINK

Cheers,

Jeff
 

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Resetting the ECM is just a band aid till the sensor flakes again. Pulling the power to reset the ECU also isn't reprogramming the car that they should have charged you $45 for and told you different.
 
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