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Showing posts from March, 2020

How To: replace a BMW F650CS instrument cluster / circuitboard

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Since I have read that this is a relatively common repair on this particular bike, but a moderately complicated one at the same time, and not well documented in my service manual, I thought I would post this how-to. Background: my wife’s newly acquired 2003 F650CS had problems with the instrument cluster from the get-go. First the speedometer and the tach died, then the clock and the odometer. We tried cleaning contacts and the like, but the only likely diagnosis was that some component in the PCB (printed circuit board) that controlled those items was fried. Given the poor weather sealing around the board, it’s probably a miracle that it had lasted 17 years here in Texas heat and humidity.  So, without further ado… Step 1: acquire a new PCB and instrument cluster.  You want item 5 on the following diagram / list of parts:  Build in an appropriate amount of waiting time for this step. The item ships direct from Germany.  Step 2: take off the windshield and disassemble the instrument cl