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brengun

Member Since: 08 Mar 2013
Location: New Forest
Posts: 39

Audio Noise

Having charged up my battery in situ, I now get an extremely loud audio type noise through the speakers. Like a loud buzzing noise. Comes on when put into reverse and only stops when I put into neutral or park. It is not the parking aid sensors as these also come on when near my wall which then stops this audio buzzing.

Any ideas....

5th Nov 2013 5:20 pm

SYFL2

Member Since: 16 Jun 2012
Location: Sheffield
Posts: 2609

2007 Freelander 2 TD4 HSE Auto Stornoway Grey

Charged my battery with a smart charger while on the car many times not had this problem.

5th Nov 2013 7:48 pm

brengun

Member Since: 08 Mar 2013
Location: New Forest
Posts: 39

Thanks mate. I'm completely baffled on this one.

5th Nov 2013 8:00 pm

hinchy

Member Since: 08 Jan 2009
Location: Stockport
Posts: 779

2013 Freelander 2 SD4 HSE Lux Auto Aintree Green

Try turning on your parking sensors manually to see if the noise comes on, sounds from what your saying that's were the problem is.

5th Nov 2013 9:23 pm

brengun

Member Since: 08 Mar 2013
Location: New Forest
Posts: 39

Thanks. Will pop out now and give it a go.

5th Nov 2013 9:34 pm

alex_pescaru

Member Since: 12 Mar 2009
Location: RO
Posts: 4642

What charger did you used? Is it reliable? Do you trust it? Which voltage is it capable to supply towards the end of charging?
I don't want to spread negativism, but it's possible that, if the voltage was towards 16 volts, to have popped some capacitors on the amplifier module...

5th Nov 2013 9:42 pm

brengun

Member Since: 08 Mar 2013
Location: New Forest
Posts: 39

hinchy wrote:
Try turning on your parking sensors manually to see if the noise comes on, sounds from what your saying that's were the problem is.

Thank you so very much. Problem sorted. In celebration I decided to go and have a couple of pints. Cheers....

Last edited by brengun on 5th Nov 2013 11:07 pm. Edited 2 times in total

5th Nov 2013 11:03 pm

brengun

Member Since: 08 Mar 2013
Location: New Forest
Posts: 39

alex_pescaru wrote:
What charger did you used? Is it reliable? Do you trust it? Which voltage is it capable to supply towards the end of charging?
I don't want to spread negativism, but it's possible that, if the voltage was towards 16 volts, to have popped some capacitors on the amplifier module...

Thanks for this mate. As you can see from above, problem sorted.

I have a CTEK MXS 5.0 that does the job.

5th Nov 2013 11:06 pm

andycwb

Member Since: 08 Oct 2013
Location: United Kingdom
Posts: 108

2011 Freelander 2 SD4 HSE Auto Ipanema Sand

You should only ever attach a trickle charger to a battery on the car.

Poorly regulated chargers can introduce high voltages either when first connected or toward the end of charging, and some expensive chargers can also give high voltages to 'recover' a poorly battery.

Either way, it's a big risk.

Glad it's sorted - file under lucky escape. 2011 MY SD4 HSE + planning some interesting stuff
Previously: 2004 Discovery Td5 ES Premium + lots of stuff
Previously: P38A Range Rover 4.0 SE
Hampshire and Berkshire 4x4 Response Founder and Treasurer

5th Nov 2013 11:09 pm

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