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Baloo
Member Since: 26 Apr 2008
Location: Wiltshire
Posts: 39
  
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| Whining resonance under acceleration. |
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Have just got my car back, an 07 automatic 24000 miles, after having the dealer investigate an intermittent whine that occurs under acceleration coming in at about 1800rpm until 2500rpm or thereabouts. I first noticed it pulling away on a steep hill, where it was very noticeable and could be felt as a slight resonance through the steering wheel, but it also occurs in general driving, though not as noticeably. At first they couldn't hear anything but eventually they managed to replicate it and have moved a brake pipe that was resonating on a heat shield. This has changed nothing and the noise is still there.
I'm inclined to let it develop but would be interested to know if any other member has had the same problem, but of course one become tuned into it and it is bugging me now. I would be pleased if a solution could be found before, if in the worst case scenario, something goes pop! So, if there is anybody out there?
Thanks in hope.
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 18th Oct 2008 9:13 am |
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Gareth
Site Moderator
Member Since: 07 Dec 2004
Location: Bramhall
Posts: 26775
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It could be the aircon system. Mine makes a similar noise, its very faint, but once you have tuned into it it is there most of the time. It is an engine speed related whine, loudest at about 1800rpm.
The big clue is, if I turn the ac off or set it to econ, the noise immediately disappears.
I think it is more likely to be a resonance of pipes rather than a faulty ac compressor, as it can only be heard inside the car. The outside of the vehicle sounds perfectly normal.
I have lived with the noise for ages, tbh it is very faint and does not really bother me.
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| 18th Oct 2008 9:18 am |
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Ian62
Member Since: 17 Mar 2007
Location: Cyprus
Posts: 238
 
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Baloo; Take a look at my post which I posted yesterday, it sounds as if you could have the same problem, rev's 1800 yeah sounds about the same as mine, anyway have a look and let me know.  Stadt Panzer Power
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| 18th Oct 2008 3:08 pm |
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AndrewW
Member Since: 06 Aug 2007
Location: Saddleworth
Posts: 2302
 
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I've got one I can feel through the steering wheel, 1800 rpm, uphill, cold engine, 2nd gear (auto).
I think it is the 2nd gear cluster and I am monitoring it - 7 months warranty to go....
BTW I cured a 2100rpm sympathetic vibration which sounded like a loose exhaust silencer baffle (but there aren't any...). After dealers checked all the heat shields to no avail - I found it was the horn, which is on a rather floppy bracket. Just remove the front grille and "twang" it. 2006 D3 finally swapped for a 2016 D4 Graphite in Graphite grey. No mods
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| 18th Oct 2008 3:34 pm |
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Gareth
Site Moderator
Member Since: 07 Dec 2004
Location: Bramhall
Posts: 26775
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Floppy horn  is there a tsb for that 
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| 18th Oct 2008 3:40 pm |
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AndrewW
Member Since: 06 Aug 2007
Location: Saddleworth
Posts: 2302
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Don't tell EVERYONE I pull my front kit off and twang my floppy horn!! 
Quote: is there a tsb for that
No - just aversion therapy  2006 D3 finally swapped for a 2016 D4 Graphite in Graphite grey. No mods
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| 18th Oct 2008 4:13 pm |
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Baloo
Member Since: 26 Apr 2008
Location: Wiltshire
Posts: 39
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My noise seems to be coming from the front offside, but I wouldn't call it a scream much more subtle than that.
Nevertheless it shouldn't happen on a 35 grand car that claims to be utilitarian. Also if it was the 2nd gear cluster surely the noise would be coming from the gearbox, my whine seems more front axle than gearbox, but then again who knows? Certainly not the dealer I went to. Perhaps "they all do that, Sir".
I WILL get to the bottom of it! I hope.
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| 18th Oct 2008 10:08 pm |
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DG
Site Moderator
Member Since: 12 Dec 2005
Location: The Gaff
Posts: 50978
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Could it be the diff?? 21 year LR veteran > D2 GS 2003 > D3 S 2006 > D3 HSE 2009 > D4 HSE 2013 > D4 HSE 2015 > D5 HSE 2018 > DS HSE R-Dynamic P300e 2021
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| 18th Oct 2008 10:11 pm |
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Baloo
Member Since: 26 Apr 2008
Location: Wiltshire
Posts: 39
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That's what I'm worried about, so basically I will have to let it develop unless any members have the definitive answer. But you get a bit paranoid about the ability and enthusiasm of the dealers to get things sorted and at the very least discuss the potential problem.
Here's hoping that this forum helps me get to the bottom of it.
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| 19th Oct 2008 7:56 am |
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cdodkin
Member Since: 18 Aug 2008
Location: Ex Pat Brit in California
Posts: 700
  
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I had a constant whine from the passenger side front - dropped SWMBO off at the store and the whine stopped immediately.
Think I may have found my problem 08 LR3 SE V8 - 02 D2 SE7 V8
Porsche 911 (03 996) - 2013 MINI Cooper S
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| 19th Oct 2008 3:59 pm |
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NJF
Member Since: 05 Oct 2007
Location: Gone
Posts: 2466
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Gareth wrote:It could be the aircon system. Mine makes a similar noise, its very faint, but once you have tuned into it it is there most of the time. It is an engine speed related whine, loudest at about 1800rpm.
The big clue is, if I turn the ac off or set it to econ, the noise immediately disappears.
Thanks, Gareth. That's a very timely post, because I've noticed that noise over the past few months and was beginning to worry that the front diff was on the way out. As you said, it disappears when I switch the aircon off.
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| 19th Oct 2008 7:34 pm |
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caverD3
Member Since: 02 Jul 2006
Location: Oberon, NSW
Posts: 6922
 
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Mine has had the same whine from new, more noticable on hills. Monitoring it, ..............still there. “There are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely gamesâ€
Ernest Hemmingway
D4 3.0 Active Diff, Adaptive Lights, High Beam Assist, Surround Cameras, Privacy Glass.
D3 2.7:Adaptive Headlights,Electronic Rear Diff,ARB Bar,Blaupunkt Speakers,JVC Powered Subwoofer,Removable Snorkel,Mitch Hitch,Pioneer After Market Head Unit,Steering Wheel Control Adaptor,Remote Adjustable Supension Rod System, Taxside Dual Battery System.
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| 19th Oct 2008 7:48 pm |
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Wex
Member Since: 16 Apr 2007
Location: Knackeragua
Posts: 5173
 
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Baloo wrote:That's what I'm worried about, so basically I will have to let it develop unless any members have the definitive answer. But you get a bit paranoid about the ability and enthusiasm of the dealers to get things sorted and at the very least discuss the potential problem.
Here's hoping that this forum helps me get to the bottom of it.
problem is Baloo that the majority of dealers haven't got any enthusiasm and consequently their ability is matched by this.Frustrating as  .But inevitably the answer turns up here though.
I've had the whine for a long time now , prominant on hill climbs when the engines cold.Have had transmission shunt since day one aswell.Im at 166 k klms ( june 06).
Last edited by Wex on 19th Oct 2008 8:49 pm. Edited 1 time in total
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| 19th Oct 2008 8:24 pm |
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philthejono
Member Since: 01 Aug 2007
Location: Rugby
Posts: 85
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I have exactly the same and have had since I got the car (was 12-months old, 5k miles at time). Dealer heard it when it went in for some other bits, no idea what it was. Again, seems to be there most when enginer cold and going up a hill. Had assumed it was just some cold metal resonance type thing.
Of more annoyance is a screaching sounds that started recently and is coming from either the rear or front nearside wheel (hard to tell which). Intermitant, but seems to occur most when the camber on the road changes, so the car is leaning slightly to the drivers side. Was searching for any other references to such a thing when I came across this thread. So answers to either appreciated. 11 HSE Santorini Black
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| 19th Oct 2008 8:24 pm |
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Wex
Member Since: 16 Apr 2007
Location: Knackeragua
Posts: 5173
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bearing on its way out
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| 19th Oct 2008 8:34 pm |
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