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jaydr jaydr is offline
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Car: F80 M3
Default JB4 fitted - code issue - 08-12-2017, 05:16 PM

Hello all,

Recently fitted JB4 with **'s and upon reading the codes via Bluetooth this code appeared and won't go away. Car runs fine and no engine check light, so I wondered if anyone had seen this before:

135808 - valvetronic servomotor, position sensor; short circuit or open circuit


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Terry @ BMS's Avatar
Terry @ BMS Terry @ BMS is offline
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Default 08-13-2017, 10:38 AM

Sounds like a physical connection in the engine bay is loose.

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jaydr jaydr is offline
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Car: F80 M3
Default 08-13-2017, 11:09 AM

Thanks Terry - I had a good look, as did others but will double check
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