warning gong has started since having new rear tyres

Hi Jaspa

The first thing I would check is that all the warning lights on the dash and the centre display are working. The lights should come on with the ignition and the centre display will show time/date or possibly other message.

The chimes are nearly always alerting you to a warning, either a warning light or message. It wouldn't be the first time that a warning light or message display has be nobbled so that's the first thing to eliminate.

The manual is not much help here. I did a search for 'gong' and it only appears once in my 2007 C3 manual and it relates to the over-speed sensor. I am sure it must be used for other warnings too though.

from the manual wrote:Overspeed alert

Function for keeping to a desired maximum speed.
A short press on control E activates this function (the warning lamp lights up).
To pre-set or modify the desired alert speed, when you have reached this speed, give a long press on control E (located on the dashboard central panel) until you hear a confirmation gong.
An audible signal indicates that the programmed speed is being exceeded.

To cancel
Give another short press on control E to deactivate this function (the warning lamp goes out).
Note: The overspeed alert only functions for speeds above around 30 km/h
(around 18 mph).

Missing Lincs wrote:The chimes are nearly always alerting you to a warning, either a warning light or message. It wouldn't be the first time that a warning light or message display has be nobbled so that's the first thing to eliminate.

Yes, I remember this appearing somewhere on the forum

think i've sorted it now, whilst looking for an ignition feed for the stereo i noticed that the speed warning indication button had been accidentally turned on. that has stopped the gong but finding an ignition feed is proving more difficult...pin 4 as suggested on other posts seems to do nothing so i'm having to uses a permanent live for now until i can get to the cigarette lighter wiring ...humph, i hate being out manouevered by a care

i think i've sorted it now, whilst looking for an ignition feed for the stereo i noticed that the speed warning indication buttonhad been accidentally turned on. that has stopped the gong but finding an ignition feed is proving more difficult...pin 4 as suggested on other posts seems to do nothing so i'm having to uses a permanent live for now until i can get to the cigarette lighter wiring ...humph, i hate being out manouevered by a car

Great! Wiring to the cigarette lighter is not too difficult to get at

That should be fairly simple to fix. In the connector from the vehicles wiring harness there are two lives, one is permanent and the other is switched by the cars BSI (computer). The latter comes on when the car is unlocked and goes off a few minutes after locking.

All you need to do is find the permanent live. If you've used a wiring adaptor it may already have a means to change the live connections over. Leave your switched live connected as is. On most harnesses the two lives are coloured red and yellow, if that is the case and you're using the red as your permanent live, use the yellow or vica versa.

I've already tried that, the yellow wire is the permanent live that I'm using but it doesn't stay live after the ignition has been turned off for over 5 mins, the other one (red one) is only live when the ignition is on. These are the only two lives in the wiring harness so my problem is how to make the yellow wire stay live after 5 mins when the computer has done a sweep

Do you know if your car is pre or post facelift? The radio wiring changed with the update.

Alternatively can you post a picture of the radio connector on the car's wiring?

It's a march 05 model so I believe it's pre facelift I'll try to post a picture tomorrow.. its now officially doing my head in, I went back into it with a meter and found what I thought was a perm live which changed once I connected to it... I firmly believe that it's taking the mick