BMW K bikes (Bricks)

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active member
active member
I have been checking the K100 to make sure it is all good for roadworthy inspection.

When I turn on the ignition I get the usual flashing ABS warning light (which I know goes out once you move off) but I also get the triangle warning light flashing in sequence with the ABS warning light.  Is this normal ?

I know the rear brake switch is faulty and am buying a new one.... would that be the cause of the warning light or do both lights extinguish when moving and the brakes are dabbed ?


92KK 84WW Olaf

Life time member
Life time member
Have to activate both front and rear brakes to extinguish the warning light.

1992 K100LT 0193214 Bertha Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 106,950 miles Deceased.
1983 K100RS 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 54,800 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 42,640 miles.
1983 K100RS 0004449 Odette 55,000 miles. Sprint fairing

1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500


active member
active member
Thanks mate,

Fitted a new rear brake switch then took the bike for a short spin, applied both brakes and all lights extinguished.


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