Doug Huffman. There is a sensor and a specification. "The steering wheel module keeps the surface temperature of the heating mat at approx. 36°C (98.6°F ! ) via a pulse-width modulated signal (PWM signal)." There is no indication of adjustment of the NTC thermistor output. Activating the seat warmers is done from the same menu, as is the activation of the heated steering wheel, and so on. BMW iX. Sure, you can still change the fan speed, the temperature and other 4249 posts · Joined 2005. #27 · Dec 15, 2014. The heated steering wheels on my current ('13) 535xDrive and 3 previous BMWs was more than adequate, heated up very quickly (2-3 minutes), and easily eliminated the need to wear gloves even on the coldest of drives even when parked outdoors overnight in the winter. At the -Z36- heated steering wheel connector in the steering wheel (Fig 1), measure the resistance of the heated steering wheel circuit. A functioning heated steering wheel should have a resistance reading of 1.5 Ω ohms. If no issues are found with these readings, the recommendation for repair is to replace the -J527- Steering 8)To remove steering wheel 19mm bolt and YOU WILL NEED THE STEERING WHEEL EXTRACTOR. home made extractor shown here. screw 2 screws in to the steering wheel where you see the threaded holes, make sure the bolts are properly in place and down as far as they will go. shown here. At 40 degrees, or lower, drivers seat and steering wheel will automatically come on. Page 30 'talks' about going into:: Auto Comfort, in Uconnect Settings, in Multimedia 'options'; to do some sourt of re-setting. You can set up your BMW so that your heated seats and steering wheel turn on automatically at or below a certain temperature. Watch the video to see how. www If you're looking for a modern, leather, heated steering wheel cover, check out the Kimpex 95091 Heated Steering Wheel Cover. This cover comes in a black leather design and uses a 12-volt plug. It My 2019 X3 M40i (G01) has heated seats and steering wheel automatic activation. I've attached the files for three ECUs: BDC, climate control unit, and head unit. Maybe they'll be helpful. You need to change the extension from pdf to xlsx as the attached files are Excel files (NCD converted to FWL and extended with E-Sys comments) Jun 21, 2022. #3. I had 2 bubbles, one on each side of the steering wheel next to scroll wheels. Was a bit annoyed about it. Went to take care of some rattles (not fixed) but got the steering wheel replaced under warranty at 18k. It also fixed my other issue, the horn would work only if you press it on top. jeP4.