Gauges chatter when key is turned on - BMW Luxury Touring Community
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post #1 of 2 Old Jun 3rd, 2019, 11:20 pm Thread Starter
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Gauges chatter when key is turned on

I have a 2006 K120LT with about 60k on it. I stored it in a friend's shed over winter. Battery was dead the spring. My helpful friend brought the battery charger for diesel tractors. After poking around and some sparks battery charged, but would not turn over. When I turn the key on gauges act funny. The don't full sweep and stutter as they return. Battery is at 12.5 volts until key is switched on. Then sinks to 6 or 7. When I unhook the lead to the starter the gauge symptom goes away, of course no connection to the starter leaves me with a BMW paper weight. Any suggestions would be appreciated
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post #2 of 2 Old Jun 4th, 2019, 7:55 am
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Join Date: May 2004
Location: Hazel Green, AL, USA
Posts: 13,348
Re: Gauges chatter when key is turned on

If the battery goes to 6 volts with the key on it is a shot battery. Many a shot battery will show a no load voltage of 12 volts but will not support it under a load. Replace it. Unhooking the lead to the starter removes the ground for the load relief relay and kills the lights and other loads.

2009 K1300GT Red Rocket
2009 R1200GS (Gone)
2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable

Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

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