BMW TSB #B610819
2017 BMW M4
Affected Component: VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING
- Summary
- Service Information June 2019 General Electrical Systems B61 08 19 Technical Service WINDSHIELD WIPERS SWITCH ON BY THEMSELVES. The windshield wipers switch on by themselves and can no longer be switched off despite activation of the switch. An internal software error in the SZL (steering column switch cluster).