No braking force assistance after engine start diagnostic trouble code (DTC) 480705 / 480706.
BMW technical service bulletin B340519 for 2019 BMW X5, 2019 BMW Z4 and 2019 BMW 330I and others.
- Bulletin number
- B340519
- Component
- Service brakes
- Summary
- NO BRAKING FORCE ASSISTANCE AFTER ENGINE START DIAGNOSTIC TROUBLE CODE (DTC) 480705 / 480706. When starting the vehicle. The red brake warning light lights up in the instrument cluster. The braking force assistance has failed (stiff brake pedal). Check Control message appears: Drive at a moderate speed. Braking force assistance. The red warning lamp disappears after engine restart and braking force assistance is available again.
Owners of these vehicles have filed 18 complaints in the brakes category.
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