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Low level buzz/ringing from around battery area when hood open

Posted: Thu Oct 11, 2018 12:14 pm
by Tamtoot
Good day,

I was having a check on fluid levels today and heard a buzzing/low level ringing tone from around the battery location area. I closed the hood then listened through the wheel gaps and could still hear this low level noise. I cannot determine the source.

Could it be anything to do with the NATS system, as the security warning light symbol blinks every few seconds when the ignition is off and doors+hood are closed?

Can anyone please advise if this is considered normal?

Thanks in advance.

Tamtoot

Re: Low level buzz/ringing from around battery area when hood open

Posted: Fri Oct 12, 2018 9:59 pm
by redqashqai
I can confirm that both my Qashqai have the 'low level buzz' under the bonnet. Ford C-Max also had it. Nothing to worry about.

Re: Low level buzz/ringing from around battery area when hood open

Posted: Mon Oct 15, 2018 6:32 pm
by Tamtoot
Redqashqai,

Thank you for your kind response. I will not now worry..

Cheers

Re: Low level buzz/ringing from around battery area when hood open

Posted: Tue Oct 16, 2018 9:14 am
by chrisw99
On my 3rd Qashqai, all have done it.

Re: Low level buzz/ringing from around battery area when hood open

Posted: Tue Oct 16, 2018 11:29 am
by Deleted User 3871
Could be the air intake join near the battery vibrating. just grab it hard and see if it stops. If it does get a big tie wrap around the join, that's what I did for the vibration I was getting.

Re: Low level buzz/ringing from around battery area when hood open

Posted: Tue Oct 16, 2018 1:26 pm
by chrisw99
It actually happens when the engine is off, just the ignition on, so is something electric like a transformer whine rather than anything vibrating.

Re: Low level buzz/ringing from around battery area when hood open

Posted: Wed Oct 17, 2018 12:05 pm
by Deleted User 3871
My Mini Coupe used to make a buzzing noise when I popped open the bonnet. Was reasonably loud and I always thought it was something to do with the alarm system. Everything was working perfect with the car apart from the battery that was on its way out and caused the Start stop system not work.

The only think I could suggest from this, its that its a possibility the battery may need replacing?
chrisw99 wrote: Tue Oct 16, 2018 1:26 pm It actually happens when the engine is off, just the ignition on, so is something electric like a transformer whine rather than anything vibrating.

Re: Low level buzz/ringing from around battery area when hood open

Posted: Wed Oct 17, 2018 1:49 pm
by chrisw99
Daewar wrote: Wed Oct 17, 2018 12:05 pm My Mini Coupe used to make a buzzing noise when I popped open the bonnet. Was reasonably loud and I always thought it was something to do with the alarm system. Everything was working perfect with the car apart from the battery that was on its way out and caused the Start stop system not work.

The only think I could suggest from this, its that its a possibility the battery may need replacing?
It's happened on all 3 of my Qashqais and I've had the battery replaced on 2 of those and it still happened. Perfectly normal.

Re: Low level buzz/ringing from around battery area when hood open

Posted: Fri Oct 26, 2018 7:22 am
by coys84
Above the battery there is a pressure converter that buzzes on mine.

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