What is CBS?

Conditional Based Service (CBS) is an evolution of BMW's standard service indicator system (SIA) previously fitted across the model range. It was first introduced in 2002 when the ‘new' 7' series model was launched and is now a standard feature on the following models:

• 1' Series E87 (2004 on)
• 3' Series E90/91 (2004 on)
• 5' Series E60/61 (2003 on)
• 6' Series E63/64 (2004 on)
• 7' Series E65/66 (2002 on) 

How Does It Work?

The CBS system is at the forefront of service innovation, and for this reason we want to ensure that you understand its principles and benefits.

CBS works by employing sensors to constantly monitor parts subjected to wear and ascertain the extent to which servicing is necessary. 

A microchip in the vehicle's remote control in the key saves the data along with other general information such as the odometer reading and the vehicle identification number. 
 
BMW Service uses a device known as a Key Reader to download this information from the vehicle's key.

BMW Service staff can download this information to provide an accurate analysis at any given time. This means that until such time that wears progresses to defined limits, no service or maintenance work is required.

In essence, this system allows each service to be tailored to the requirements of each and every BMW.

The savings are measurable in terms of both time and outlay.