Compass Operation When the ignition is on, the compass will show two character boxes. The mirror will display the compass heading. When cleaning the mirror, use a paper towel or soft cloth dampened with glass cleaner. Do not spray glass cleaner directly on the mirror as that may cause the liquid [...]

BMW: On BMWs we need both the Cluster and EWS/CAS. Depending on the year, make, and model, the CAS/EWS is located usually in the kick panel under the dash. To find the exact location, the service department at your dealership can provide you with the exact location depending on your VIN [...]

  This section outlines the common questions and issues with individual gauges and is written specifically for General Motor (GM) vehicles 2003-2006.   Gas Gauge GM units of this era may suffer from faulty fuel level sending units inside the fuel tank; this is a very common [...]