replace the above with a known to be functional module (from a friend, a local service etcetera). 
Next, remove the module identified on the previous step in one of the following two ways:.677 HIFI System Professional – the TOP HIFI (also known as Logic 7) sound amplifier.644 Preparation f mobile phone w Bluetooth – this is the MULF or MULF 2.Enter the last 7 characters of your VIN number here or here and see if the generated list includes: First, check whether your car comes with the bluetooth and / or sound amplifier modules that are known to be prone to failure.The most common other causes: the bluetooth module (MULF or MULF 2) and the sound amplifier (TOP-HIFI, also known as Logic 7). Another module connected to the fiber optics ring if faulty and prevents the proper functioning of the CCC iDrive.If a disk does not come out by itself, please do not force it out (as this may cause mechanical damage). The CCC has trouble reading the CD / DVD.The CCC iDrive resets a few times, but then starts and works properlyįor the symptoms above, your CCC diagnosis may be wrong.
The CCC headunit randomly freezes and the iDrive controller / the joystick spins freely. Slow navigation menu: the CCC iDrive is slow (has a lag) in executing user commands. We also have a list of symptoms that may have other causes: The CCC console buttons lights remain always on. The cooling fan of the CCC iDrive remains on, consequently draining the car battery. The CCC iDrive is completely non functional, as a result your screen remains blank. The CCC head unit might work when the car is cold, but fails to work when the car is warm. The iDrive is fully functional on particular days only, most likely when the weather is colder. The CCC iDrive does not boot completely thus, when started, it remains blocked on the BMW logo. CCC iDrive reset: the CCC head unit reboots continuously, as a result your screen cycles between the BMW logo and a black screen. Here’s how to correctly diagnose a CCC failure.įirst, read through our compiled list of symptoms that are normally caused by a faulty CCC head unit: With the right guiding, it can be a quick and painless process. Your CCC unit appears to be malfunctioning and you’re thinking of having it repaired or even replaced ? Before you proceed, we recommend to verify your CCC diagnosis to make sure it’s really a CCC failure.
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