[Gr-Racing]

I been having problems with the oil temp gauge sometimes working and other times not for the past 2 months. This week is finally not moving at all symptoms are AC not cooling at %100 , engine fan running loudly and car feels under power.

Any one had this problem before?

[Gr-Racing]

Only me then... thinking of getting a new sensor just not sure witch one feeds the temp gauge.. the one in the oil Housing im thinking

[zinner]

pick up a scan tool and confirm your suspicions. The Foxwell Nt520 is pretty cheap and can help you out.

[Fry-man22]

Originally Posted by Gr-Racing

Only me then... thinking of getting a new sensor just not sure witch one feeds the temp gauge.. the one in the oil Housing im thinking

I think another poster went through this recently and found that the sensor in the front is for the coolant, the oil temp is located under the intake manifold.

https://www.realoem.com/bmw/enUS/sho...diagId=11_4447

It's #16. in this diagram. I have not dug into these engines much, but given the location of that sensor I would pay someone to confirm it's bad before I tried to fish in there or took off the manifold.

What is your failure condition for the A/C? Mine was cutting out at a stop and I thought this indicated an A/C issue. BMW scanned the car and found it was shutting down the A/C because it was getting too hot due to a failed radiator fan. I never got any lights on the dash, and the A/C started working again as soon as I got up to speed.

I replaced the fan myself and cleared the codes. There was a code 801224 "Air conditioning compressor: Shut-down due to excess pressure in refrigerant circuit" in the DME, but again I was never told anything through the dash lights or the iDrive.


https://static.nhtsa.gov/odi/tsbs/20...47967-9999.pdf

[Gr-Racing]

Originally Posted by zinner

pick up a scan tool and confirm your suspicions. The Foxwell Nt520 is pretty cheap and can help you out.

using the scan on my Laptop with BM3 and I have no codes or no check engine light.

Originally Posted by Fry-man22

I think another poster went through this recently and found that the sensor in the front is for the coolant, the oil temp is located under the intake manifold.

[url]https://www.realoem.com/bmw/enUS/showparts?id=3A93-USA-11-2013-F30-BMW-335i&diagId=11_4447[/ur]

It's #16. in this diagram. I have not dug into these engines much, but given the location of that sensor I would pay someone to confirm it's bad before I tried to fish in there or took off the manifold.

What is your failure condition for the A/C? Mine was cutting out at a stop and I thought this indicated an A/C issue. BMW scanned the car and found it was shutting down the A/C because it was getting too hot due to a failed radiator fan. I never got any lights on the dash, and the A/C started working again as soon as I got up to speed.

I replaced the fan myself and cleared the codes. There was a code 801224 "Air conditioning compressor: Shut-down due to excess pressure in refrigerant circuit" in the DME, but again I was never told anything through the dash lights or the iDrive.


https://static.nhtsa.gov/odi/tsbs/20...47967-9999.pdf

thanks for the reply I will give a visual inspection on the sensor under the manifold maybe I can see something.
im not getting any codes today on my way to work the oil temp gauge was working and all was good this is very weird and kinda driving me crazy.

when ever the gauge is not reading
My A/C doesn't cool at 100% and my radiator fan runs at 1000% super loud those are the symptoms

found the sensor for $40 I think im gonna take a gamble and order it replace it and see what happens

thanks again

[zinner]

I am talking about accessing the live data from the oil temp sensor. What does the sensor show vs reality. Maybe BM3 can access that data but the NT520 certainly can. If you are more thrifty put together a virtual machine and a esys or ipna cable and use ISTA-D to read the values. The NT520 is worth the money if you are gonna try to wrench on your car. It already paid for itself working on my Jeeps EVAP system in just one use vs taking it to a mechanic. BM3 isn't a diagnostic tool, it's about speed and there is some diag in there so the BM3 people can blame your problems on something else. :-D