Regards to all.
I drive over 10 months Citroen C5 2.0 HDi 160hp, made in 2011, with automatic transmission and Hydroactive 3+ suspension.
Everything is superb, don't have any issue and car has real 137.000km.
Since a few weeks ago, when auto is hot, ie. after relaxed driving an hour and a half or two, sometimes I hear a buzz, from under the bonnet or below the middle of the windshield, which is clearly heard when you raise the hood. Please note that the car driving around big city in europe, where only pensioners ride possible, ie without the rampage and foot on the throttle.
I recorded a video tonight with buzzing sound:
I would just like to mention that suddenly there is no noise, but I guess my Samsung S6 microphone is turned so that the software of the phone annulled the sound ... buzzing was mostly hears constantly until the engine was shut down. I do not use the air conditioner ... so that is not a fan of air conditioning or something similar
Once again, let me emphasize, the buzzing is heard only after an hour and a half, maybe two hours of driving, let's say, that's min 90 minutes relaxed driving. If I drive 10-15 minutes, there is not any buzzing sound ...
Thank you all for reading this messages!
Strange "buzzing" sound from motor space, Citröen C5, 2.0 HDi, 16V, 160HP, 2011
Moderator: RichardW
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Re: Strange "buzzing" sound from motor space, Citröen C5, 2.0 HDi, 16V, 160HP, 2011
Err not sure what's happening with the video - but it's only showing Star Wars Trailers and Srreen Junkies???? Regardless if it is restarted!
Last edited by GiveMeABreak on 07 Apr 2016, 22:45, edited 1 time in total.
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Marc
Marc
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Ooops.
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Re: Strange "buzzing" sound from motor space, Citröen C5, 2.0 HDi, 16V, 160HP, 2011
Works fine for me Marc - use adblock if you aren't already.
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Re: Strange "buzzing" sound from motor space, Citröen C5, 2.0 HDi, 16V, 160HP, 2011
Yep got that on already Steve - where would we be without that! Closed the page and it works now! Still, an odd noise - tend to want to say a relay is on the way out, or secondly that is sounds very close to the BHI Hydraulic pump. Can you get it checked with a Lexia where you are Claudiob?
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Marc
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Re: Strange "buzzing" sound from motor space, Citröen C5, 2.0 HDi, 16V, 160HP, 2011
Even if you don"t use the AC, cooling fans may still cut in (first at slow speed) after some hot driving.
Does sound like something rubbing on the fan 'blades' - maybe a stray cable-tie, or a twig, or...
You could try to check this out by turning on the AC: fans should come on immediately at slow speed.
Noisy alternator? Heater blower?
Does sound like something rubbing on the fan 'blades' - maybe a stray cable-tie, or a twig, or...
You could try to check this out by turning on the AC: fans should come on immediately at slow speed.
Noisy alternator? Heater blower?
Chris
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Re: Strange "buzzing" sound from motor space, Citröen C5, 2.0 HDi, 16V, 160HP, 2011
Guys, thanks for reading my theme.
I tried AC fans first time i hear that sound, but no, thier sound is diferent.
Also, there is no point for service, if simptomps can't be easily reproduced. Buzzing sound is heard only after long ride, and not every time... I will order Lexia, it's not expencive...
I thought, maybe some repair men would know what is hiden behind that plastic and what could produce such noise...
Thank you guys.. i hope some one will see this video and will know.
I tried AC fans first time i hear that sound, but no, thier sound is diferent.
Also, there is no point for service, if simptomps can't be easily reproduced. Buzzing sound is heard only after long ride, and not every time... I will order Lexia, it's not expencive...
I thought, maybe some repair men would know what is hiden behind that plastic and what could produce such noise...
Thank you guys.. i hope some one will see this video and will know.
- white exec
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- My Cars: 1996 XM 2.5TD Exclusive hatch RHD
1992 BX19D Millesime hatch LHD
previously 1989 BX19RD, 1998 ZX 1.9D auto, 2001 Xantia 1.8i auto
and lots of Rovers before that: 1935 Ten, 1947 Sixteen, 1960 P5 3-litre, 1966 P6 2000, 1972 P6 2000TC, and 1975 P6B 3500S - x 1752
Re: Strange "buzzing" sound from motor space, Citröen C5, 2.0 HDi, 16V, 160HP, 2011
Does C5 have a vacuum pump for EGR, like XM? These can go buzzy with age.
Electric hydraulic pump?
Just guessing...
Electric hydraulic pump?
Just guessing...
Chris
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C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
C5 MK II 2.0 HDi Exclusive Obsidian Black
C5 MK I 2.0 HDi SX Wicked Red
Xantia S2 2.0 HDi SX Hermes Red
C15 Romahome White
XM 2.0 Turbo Prestige Emerald Green Pearlescent
XM 2.0 Turbo Prestige Polar White
XM 2.0 SX Polar White
CX 20 Polar White
GS 1220 Geranium Red
CX 2.4 Prestige C-Matic Nevada Beige
GS 1000 Cedreat Yellow - x 5723
Re: Strange "buzzing" sound from motor space, Citröen C5, 2.0 HDi, 16V, 160HP, 2011
They are electronic ones on later models, so not sure.
Please Don't PM Me For Technical Help
Marc
Marc
Re: Strange "buzzing" sound from motor space, Citröen C5, 2.0 HDi, 16V, 160HP, 2011
Have you tried using a mechanics stethoscope (also known as a very large very long screwdriver held against your ear ) to help identify the source of the noise ?
In an engine bay full of noise this can sometimes be the only way to identify where a noise is coming from...
In an engine bay full of noise this can sometimes be the only way to identify where a noise is coming from...
Simon
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Re: Strange "buzzing" sound from motor space, Citröen C5, 2.0 HDi, 16V, 160HP, 2011
mine does it too...very low volume, sounds like it's from somewhere around the LDS reservoir?
do i care? no
maybe it's another thing to add to my list of 'woes'
do i care? no
maybe it's another thing to add to my list of 'woes'
currently '06 C5 2.0 HDi auto estate Tip run and France trekker - well should be!! occupied currently by '10 Superb DSG 170 elegance- whistles and bells that work
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Ooops.
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R4, R11TXE, R14, R30TX - x 4920
Re: Strange "buzzing" sound from motor space, Citröen C5, 2.0 HDi, 16V, 160HP, 2011
Just turn the audio up a bit
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'09 X7 - gone
CMax - X7 replacement - gone
Acadiane - lost to a V5c applicant
'06 C5 VTR auto est
'90 Honda Beat
'73 ST70 Dax
'75 ST Dax - 120 powered - x 127
Re: Strange "buzzing" sound from motor space, Citröen C5, 2.0 HDi, 16V, 160HP, 2011
just makes the speakers crackle
you don't hear it when driving, only when stopped, ignition off and very little background noise
hopefully it's about to catch fire/blow up and so will stop me spending, sorry, throwing money at it
you don't hear it when driving, only when stopped, ignition off and very little background noise
hopefully it's about to catch fire/blow up and so will stop me spending, sorry, throwing money at it
currently '06 C5 2.0 HDi auto estate Tip run and France trekker - well should be!! occupied currently by '10 Superb DSG 170 elegance- whistles and bells that work