Why does the BMW Mini CAS3+ remote control not work?
2 Answers
BMW Mini CAS3+ remote control does not work for the following reasons: Presence of radio signals with the same frequency in the vicinity: The car remote control malfunction is due to the presence of high-power radio signals with the same frequency in the surrounding area, which prevents the car's frequency signal receiver from detecting the radio-encoded commands sent by the remote key. This results in the failure of the car remote control, leading to situations where the car cannot be locked or the doors cannot be opened. Grease in the remote control becoming sticky: As the weather gets colder, some grease in the remote control becomes sticky, causing poor contact and resulting in the failure of the car remote lock. Therefore, car owners should properly store their car remote keys to prevent oil or dirt from entering. Car or remote control battery is dead: The car battery is dead, causing the vehicle to fail to receive signals; the car remote key battery is dead, making it impossible to unlock the doors.
I've been driving for several years, especially with cars like your BMW Mini encountering CAS3+ remote control issues. The most common cause I've found is a dead key battery. Try replacing it with a new one, such as a CR2032 model. There's usually a small cover on the back of the key. If it still doesn't work after replacement, it could be due to signal interference, like in large parking lots or near WiFi routers, where the remote might fail. Try getting closer to the car or restarting the vehicle system. Sometimes, the CAS module needs reprogramming and pairing, which requires professional diagnostic tools. I recommend finding a reliable repair shop to check the error codes. Safety shouldn't be overlooked; a malfunctioning remote might prevent the car from starting. Avoid placing the key in overly hot or humid places. During regular maintenance, have them test the remote function to save a lot of trouble.
