Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Cruise Control Switches
The cruise control switch pad is mounted on the right side of the steering wheel (MFL). All of the request functions (SET, ACCEL, DECEL, RESUME AND OFF) are activated from the cruise switch pad.
These request inputs are processed by the MFL switch pad and transmitted to the Steering Wheel Control Module (MFL-CM) on early E38 or directly to the I/K bus on later models.
Depending upon model, year and engine, the data signals will go to the cruise control module (early V-8), EML module (V-12) or engine control module to regulate the engine speed via the throttle.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.