There are a number of different reasons why the Check Control warning light might come on, but some of the most common include:
* Low tire pressure
* Low oil level
* Overheated engine
* Faulty brake lights
* Faulty turn signals
* Transmission problems
If you see the Check Control warning light come on, it is important to take your car to a qualified mechanic as soon as possible to have the issue diagnosed and repaired. Continuing to drive with the warning light on could cause further damage to your car and could even be dangerous.
In addition to the Check Control warning light, your 2006 330I may also have other warning lights that can come on. These lights are all designed to alert you to potential problems with your car, and it is important to take them seriously. If you see any warning lights come on, always refer to your owner's manual for more information and take your car to a mechanic if necessary.