Astra making buzzing sound - what's wrong?

I’ve just bought a new Vauxhall Astra SRI, but noticed a buzzing noise at around 30/40mph. Any idea what’s causing it?

Asked on 19 October 2013 by NathanDuncalf

Answered by Honest John
Might be a door seal. You can check by getting some masking tape and taping up the driver's door. Then, of course, you'll have to get in passenger side. Take it for a drive and if the noise has gone you know it's the door seal and can tell the dealer what to fix.
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