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VW vr6 engine - Knock sensor leaking coolant? - dipsomaniac

Struggling to find a coolant leak. It's a slow drip, when engine running it's faster. Looks like it may be coming from the knock sensor. Anyone else had this? Do I have to replace the sensor?

VW vr6 engine - Knock sensor leaking coolant? - elekie&a/c doctor
Unlikely. The knock sensor is actually a microphone bolted to the side of the engine block. It’s not in the coolant system.
VW vr6 engine - Knock sensor leaking coolant? - Andrew-T

Let's hope there are no cracks anywhere then ....:-)