SOS Error w/ Heater On

[Yeineken]

Monday while driving to work I noticed i was running at 250 temp so I decided to put the heat on half way and crack the windows to bring the temp back down some. After about 20 minutes the SOS/Bluetooth disabled came on. I did some searching about it when I got to work and just seemed to be a glitch. So I ignored it.

Today I was driving home and noticed it was at 250 temp again so I did the same procedure to bring the temp back down. 20 mins later I get the same SOS/Bluetooth error. I turned the heater fan off. After half hour the error goes away and I get static for a second through the stereo and then all is well.

Whats up with this? Is it possible that the heat coming through the dash is getting a component too hot? Also I can still use the radio. Select channels and still gets signal, just no sound.

[Yeineken]

Bump

[drewster99]

Are you turning the heat on when the oil gauge is at 250? Or do you have a separate coolant gauge that's running at 250? The gauge on the dash is for oil not coolant, and I could be wrong but I don't think turning the heat on will cool down the oil.

[Yeineken]

Originally Posted by drewster99

Are you turning the heat on when the oil gauge is at 250? Or do you have a separate coolant gauge that's running at 250? The gauge on the dash is for oil not coolant, and I could be wrong but I don't think turning the heat on will cool down the oil.

Yes oil. And reading the oil gauge on the dash. People that track their cars suggest running the heater as it uses engine bay heat.

[chris82]

Originally Posted by Yeineken

Yes oil. And reading the oil gauge on the dash. People that track their cars suggest running the heater as it uses engine bay heat.

I've heard that too, seems legit

[6MT_Addict]

Originally Posted by Yeineken

Yes oil. And reading the oil gauge on the dash. People that track their cars suggest running the heater as it uses engine bay heat.

Correct, but via the coolant I believe. However since cooling down the coolant will cool the block and thus the oil in theory it will reduce oil temps. The REST function will pull residual heat from the cooling system via electric water pump, cycling hot coolant through the heater core while the engine is off.

As far as your issue, that's really odd. I would look through Real OEM to try and find the location of your Bluetooth module, it may shed some light on the issue

[Yeineken]

Originally Posted by 1AddictsAnonymous

Correct, but via the coolant I believe. However since cooling down the coolant will cool the block and thus the oil in theory it will reduce oil temps. The REST function will pull residual heat from the cooling system via electric water pump, cycling hot coolant through the heater core while the engine is off.

As far as your issue, that's really odd. I would look through Real OEM to try and find the location of your Bluetooth module, it may shed some light on the issue

Hmm is this the ALL button on LCI models?

[6MT_Addict]

Originally Posted by Yeineken

Hmm is this the ALL button on LCI models?

I'm not sure, I think you need the cold weather package to get the Rest button but I've heard of it being coded. I think the ALL button is a different function

[Yeineken]

Originally Posted by 1AddictsAnonymous

I'm not sure, I think you need the cold weather package to get the Rest button but I've heard of it being coded. I think the ALL button is a different function

I do have the Cold weather package. Hmm I will snap a shot of my dash in a little and post it. I hope this isn't because I was running the heater on a hot day instead of using engine bay heat

[mr.fabulous]

Originally Posted by Yeineken

Hmm is this the ALL button on LCI models?

AFAIK, the ALL button simply dictates the same temp to the left and right

[NIB]

gee! well I also noticed that mine fairly used bought 2009 128i BMW non iDRIVE convertible shows the SOS sign, with consequent loss of the Bluetooth function and audible which was working before. The radio works and CD works. Can this failure effect the performance of the Engine. This condition has been on for days now, even with offing and restarting the Engine.