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PauloAmore



Member Since: 27 Jan 2007
Location: Bonnie Scotland
Posts: 1292

Scotland 
L494 - Off Throttle Low Frequency Drone

Hi there,

I've noticed a bit of a drone noise when off throttle and slowing down. Not very loud at all...
- the sounds oscillates in line with speed... i.e. it slows as the car slows...

I'm thing diff or a shaft.

Think i should be worried? Preventive measures?

i previously had a diff leak that was re-sealed and filled...

Any thoughts and advice gratefully received. 2022 P440e AB

Post #594184 Sun Feb 02 2020 12:35pm
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Will_127



Member Since: 10 May 2020
Location: Wimbledon
Posts: 2

United Kingdom 

I think I have a similar issue.
Present at low revs eg 1200 both in neutral and when driving. Mild vibration through steering wheel.
Took it in, they couldn’t hear it and said it was probably supercharger whine (which I don’t buy).
Did you get anywhere with yours?
Mines RRS 5.0 v8 sc 494 my17

Post #598782 Sun May 10 2020 11:43pm
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gtr_skyline



Member Since: 28 Apr 2018
Location: St Albans
Posts: 245

United Kingdom 

So totally may not be the issue but I had something similar and looked under the passenger side front wheel arch and a large tree branch had wedged itself inside.

Prashan MY16, 3.0D HSE Dynamic, Barola Black, TV, Rear Entertainment, Opening Pan Roof, Meridian

Post #598786 Mon May 11 2020 8:53am
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scrumps



Member Since: 01 Aug 2011
Location: Somerset
Posts: 532

United Kingdom 

Hi,

I had something similar after the dealer fixed a diff leak under warranty in my last AB. Turned out to be the diff. Replacement diff fitted, and a rear prop shaft as they noticed it had started to throw grease. Final diagnosis after a road test was to run it on a ramp, wheels free and the technician listened under the diff and it was howling!

Scrumps Somerset - Where the apples do grow and the cider do flow!
2021 Defender 90 D250 HSE in Tasman with white roof.
24MY D300 AB - Verasine Blue - 😀
19MY SDV6 AB - Byron Blue - Gone
17MY D5 SDV6 HSE - Firenze Red - Gone
16MY SDV6 AB -Aruba Silver - Gone
13.5MY SDV6 "HSE Black" - Baltic Blue - Gone
10MY TDV8 HSE Galway Green - Gone
14MY D4 HSE in Scotia Grey - Gone
05 TD5 D90 CSW in Cairns Blue

Post #598795 Mon May 11 2020 12:36pm
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Will_127



Member Since: 10 May 2020
Location: Wimbledon
Posts: 2

United Kingdom 

Thank you, much appreciated. I will get them to have a good look once I can actually get an appointment!

Post #599023 Sun May 17 2020 6:51am
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