tallstevef Posted January 22, 2022 Report Share Posted January 22, 2022 Hi All, picked up a low mile 987.2 3.4 a week ago, Guards Red with hardtop. Just getting to know the car, and have found a very odd noise whilst driving. It's like a very faint "reversing" beep you hear from a lorry. Not linked to engine revs as far as I can tell, and not really noticable unless stationary and radio fairly low volume. Any thoughts? Obviously a bit paranoid as it's a new car!! Quote Link to comment Share on other sites More sharing options...
Menoporsche Posted January 22, 2022 Report Share Posted January 22, 2022 No idea but I’m sure the explanation will be great you mean slight electronic beep, once or twice a second, all the time? Also in drive, neutral, reverse? Also with engine stopped but ignition on? Quote Link to comment Share on other sites More sharing options...
tallstevef Posted January 22, 2022 Author Report Share Posted January 22, 2022 Yes, sounds like an electronic beep, around once a second - I presume all the time although it is faint and I can't always hear it over general engine noise. Haven't noticed if N or R make any difference, or if it's there with engine off but ignition on. Quote Link to comment Share on other sites More sharing options...
Andy Mac Posted January 22, 2022 Report Share Posted January 22, 2022 @tallstevef I’ve had something similar before that turned out to be the fan causing interference. (On a certain fan speed it caused a faint beeping like noise - weird). May not be that in your case - but if you decrease / or increase the fan speed a few notches it’s an easy way of seeing if the noise disappears. Quote Link to comment Share on other sites More sharing options...
tallstevef Posted January 22, 2022 Author Report Share Posted January 22, 2022 I'll give the fan adjustment a try, but think I checked that when driving and it didn't seem to make any difference... Quote Link to comment Share on other sites More sharing options...
Lonewolfgjp Posted January 22, 2022 Report Share Posted January 22, 2022 It sounds strange and I’ve never heard of that problem before. Is the hardtop fitted and does it make the noise without the hardtop? It might not make any difference but I wonder if the hood isn’t fully closed, although I doubt the hardtop would fit if it wasn’t. I never had the hardtop on my 987 s but I had one on the 986 but I can’t remember exactly how it fits. It maybe a slight fault on the parking sensors but it could really be anything. I’m guessing everything is fully closed on the car, boots etc although I think that would show on the dashboard and make a loud beep. Quote Link to comment Share on other sites More sharing options...
tallstevef Posted January 22, 2022 Author Report Share Posted January 22, 2022 Hardtop is fitted currently, more for ease of transport when I got it! Would have thought that a non-properly closed hood (soft or hard) would make a louder beep, as opposed to one I can just hear... Definitely an odd one, glad it's not just me that thinks so! Quote Link to comment Share on other sites More sharing options...
Paul P Posted January 22, 2022 Report Share Posted January 22, 2022 Welcome. weird issue. We like those. try it with air con on/off. remove the inspection cover behind the seats - lots of things that spin in there so mind your fingers/hair etc. but maybe it louder and you can pin it down. Quote Link to comment Share on other sites More sharing options...
tallstevef Posted January 22, 2022 Author Report Share Posted January 22, 2022 Hmmm, I'm not at all mechanical so not sure I'll be that good delving around the oily bits! Still, it's a good suggestion... Will try with Aircon settings too to see if any difference. Quote Link to comment Share on other sites More sharing options...
iborguk Posted January 22, 2022 Report Share Posted January 22, 2022 Just now, tallstevef said: Hmmm, I'm not at all mechanical so not sure I'll be that good delving around the oily bits! Still, it's a good suggestion... Will try with Aircon settings too to see if any difference. Hi and welcome. Do you have rear parking sensors ? If you do wonder if something there is on the fritz even without reverse selected... Quote Link to comment Share on other sites More sharing options...
iborguk Posted January 22, 2022 Report Share Posted January 22, 2022 (edited) Acoustic Speed Limit Alarm set ? Page 94 of the Driver's manual shows the how-to. Edited January 22, 2022 by iborguk Quote Link to comment Share on other sites More sharing options...
tallstevef Posted January 22, 2022 Author Report Share Posted January 22, 2022 28 minutes ago, iborguk said: Hi and welcome. Do you have rear parking sensors ? If you do wonder if something there is on the fritz even without reverse selected... Yes, I do have rear sensors - it's possible I guess. Lots of things to try, thanks for the suggestions - it might take me a while to get through them! Quote Link to comment Share on other sites More sharing options...
tallstevef Posted January 22, 2022 Author Report Share Posted January 22, 2022 19 minutes ago, iborguk said: Speed Limit Alarm set ? Page 94 of the Driver's manual shows the how-to. I'd have thought that the sound was far too quiet for a speed alarm - especially as when I tend to hear it I'm either stationary or moving slowly - usually less than 20mph Quote Link to comment Share on other sites More sharing options...
iborguk Posted January 22, 2022 Report Share Posted January 22, 2022 3 minutes ago, tallstevef said: I'd have thought that the sound was far too quiet for a speed alarm - especially as when I tend to hear it I'm either stationary or moving slowly - usually less than 20mph Can you get another set of ears on it when it occurs to help you locate where the noise is coming from...? Quote Link to comment Share on other sites More sharing options...
gillbe Posted January 22, 2022 Report Share Posted January 22, 2022 I would think rear parking assist is the source - the control unit is under the passenger seat in 987.2, where any water getting in will collect and rot things. Q Do your reversing lights work? see this similar tale... http://www.911uk.com/viewtopic.php?t=134221&postdays=0&postorder=asc&start=20&sid=401e5ee6fe2d17a6ff53acb0adc4bc53 Quote Link to comment Share on other sites More sharing options...
tallstevef Posted January 22, 2022 Author Report Share Posted January 22, 2022 So, slight update. Tried Ac on and off, and fan speed - no difference. Tried switching to N / R / P and noise remained. Rear lights / sensors work - but obviously might need further checks. No obvious dampness in cabin, car was garaged for last 8 years or so - no apparent water ingress over the last week. One interesting thing, starting from cold there is no noise, it only started about 10 mins or so into the trip - once things had warmed up. Not sure if this points to anything. 1 Quote Link to comment Share on other sites More sharing options...
iborguk Posted January 22, 2022 Report Share Posted January 22, 2022 (edited) 1 hour ago, tallstevef said: So, slight update. Tried Ac on and off, and fan speed - no difference. Tried switching to N / R / P and noise remained. Rear lights / sensors work - but obviously might need further checks. No obvious dampness in cabin, car was garaged for last 8 years or so - no apparent water ingress over the last week. One interesting thing, starting from cold there is no noise, it only started about 10 mins or so into the trip - once things had warmed up. Not sure if this points to anything. Tip if you're not aware of it , when checking for dampness pull up the carpet behind the seats and check the underlay foam as well as the carpet. Roof drains also need to be checked regularly. Which area of the car is the noise coming from...? When you say "reversing beep" does it actually sound like 3x "tones"/"bongs" at a relatively low volume ? Maybe post a link to a video which includes the noise...? Edited January 22, 2022 by iborguk Quote Link to comment Share on other sites More sharing options...
tallstevef Posted March 17, 2022 Author Report Share Posted March 17, 2022 Hi all, A bit of an update and maybe some useful information for the group. Today was the 1st time I took the hard top off and went for a drive. 2 things became very clear: 1. The odd, quiet beeping noise disappeared. My theory is that the connector for the heated rear screen wasn't connected and the car "knew" the hardtop was there - and the beeps were almost a quiet warning that the heating element wasn't connected. 2. What a fantastic car the Boxster is, quiet B road, top down - really great drive, a 12 year old car with NO squeaks, rattles - just v.tight and beautifully resolved. Am kind of getting why people love them!! Regards, Steven 3 Quote Link to comment Share on other sites More sharing options...
Menoporsche Posted March 17, 2022 Report Share Posted March 17, 2022 Nice. Could be the screen or some soft top related micro switch. Glad it’s gone. You have a good car 👍 Quote Link to comment Share on other sites More sharing options...
Pinewood Posted March 18, 2022 Report Share Posted March 18, 2022 excellent result and yes the 987.2 S is pretty special. Enjoy! Quote Link to comment Share on other sites More sharing options...
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