Thread: Loss of treble
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      08-10-2011, 11:03 PM   #7
ec_E92
Enginerd
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Drives: E92M3,E36M3,955GTS,NA6 Miata
Join Date: Oct 2010
Location: cbus, oh

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Do you have Navi? If the TCU (telematics control unit) heats up it will shut down the SOS system/Radio/Nav/Bluetooth. It's located in the trunk under the floor liner. I'm not sure about non-Navi cars, but with mine after a 100F track day the screen froze and I lost all radio/bluetooth/SOS functions until it cooled down. It's an internal protection system in the control module, once it cools to a normal operating level it resumes normal function.
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2008 E92 AW 6MT /// 115k orig rod bearings