1.2tsi fuel filter leak - replacement fitted now there's a humming/vibration

[finchi5]

As the title says I had a leak coming from my fuel filter. I think it was just corrosion that caused the leak as I have replaced the filter with a Hengst filter and all seemed well.
However, I am now getting a humming/vibrating sound in the fuel lines and filter which I didn't have before. This only happens when it's at low Idle - With the climate control off. Could this be a bit of air trapped in the lines or is the filter dodgy? The filter was the recommended one on eurocarparts. Do I have to bleed the system or just drive it to get rid of any trapped air?
Cheers everyone


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[finchi5]

I've been driving it for a bit now and all seems ok. Unless you turn off the air con and the revs drop. Then the vibrating fuel line/filter is audible. Anyone got any ideas at all? It's doing my nut!


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