Seatbelt Warning Indicators

[skaramanga]

If someone gets into my C4 and doesn't put their passenger (or rear) belt on, when the warning lights go out, as normal, nothing beeps to warn them. But if they put the belt on and then take it off, it will beep. Therefore i take it there aren't any sensors in the seats to detect the presence of someone, and that the lights are just to inform the driver at the start of a journey of who has their belt on.

Does anyone know any more about this?

 

Cheers

[Rich_Eason]

Not sure what you are asking Skaramanga....? :) ;)

 

Are you asking if about turning off the warning? Or where the sensors are or how it works?

 

The belt buckle holders on the back seats have wires comming out of them and would imagine that these are the "switch" that determins which ones are in use or not. Havnt a clue how the system works but would imagine that once the switch has been activated then the car looks for increase in MPH and if this is interupted at any point by undoing the belt the warnings go off...

 

Hope this helps?!

[skaramanga]

I'm just a curious type of person. :)

 

Yeah, just wondering how it all works really.....

 

Was thinkin it was really sophisticated at first with sensors and all, then thought the warnings just work when a belt has been fastened and then is taken off.

 

Basically, when someone is in those seats and don't put a belt on, does it not warn them? Seems to just warn if a belt has been taken off.....

 

Hmmm, i'm making this sound really complicated!

;)

[Rich_Eason]

Basically, when someone is in those seats and don't put a belt on, does it not warn them? Seems to just warn if a belt has been taken off.....

that would seriously get on your tits if 95% of the time you were the only person in the car, being reminded that 4 seats are empty!:)

 

Its all timed as well as you can drive a few hundred yards upon start up before the lights go out.

[Stuey]

if the passengers get in and dont put there seatbelts on then theres nothing. But if they have them on and take them off whilst moving then the beeps start and the dash lights up...

[Johndouglas]

My C5 doesn't work like that. If there's a bum on either of the front seats and the belt isn't fastened, as soon as the car reaches 5mph, the sounder starts quitely, then gets more persistant. After about a minute it gives up and only the light stays on. Presumably there's a sensor in the seat which works with the belt lock. Even if the back seats are folded down, the lights come on, and a message is displayed telling that none of the belts are fastened. Lights and message disappear after a few secs.

[Stuey]

the sensors are in the doors...

[Mat]

the sensors are in the doors...

How does that work on the Coupe then ?

[lee_marshuk]

I think it may be something to do with the software - since I had my software updated around a month after I had my car, the seat belt behaviour changed I'm sure.

 

I would almost put money on when I had the first car it detecting the presence of people in the seat and beeping if they didn't have the seat belt on, but now as you rightly say it only beeps if someone actually takes their seat belt off when they had already plugged it in. Its actually one of my biggest bugbears people not wearing their belt in my car.

[Ciaran2903]

Basically what it does is:

 

1) When someone puts there seat belt on the car "knows" that there is someone in that seat. If, then, that person takes there seatbelt off, then the warning comes on.

 

2)I do not believe that there are any sensors in the seats because you can quite happily have people in the back without there seatbelts on (at the beginning on the journey) and there will be no warning. (I also hate it when people dont wear their belts, the only reason i know how the system works is because some of my mates were impressed by the cars "knowledge" and tried to suss it out! :) )

[Rich_Eason]

Do you not think then perhaps there are sensors in the front seats and not in the back ones? Just a thought. ;)

 

Just thoguht as the front seat squabs do not get folded over flat....

 

All this fangdangled tercknology is new to I! :)

[skaramanga]

Looks like I started quite a discussion!

 

Hmmmm, I think it probably doesn't have sensors and is prob like what Ciaran2903 said.

The drivers seat wouldn't need a sensor because there will always be someone in that seat when it is moving! :)

[hertsnminds]

Easy enough to test...

 

Buckle up all the seatbelts with no one in the car..what do the warning lights show?

 

Leave all the seatbelts undone with someone in every seat and check again.

 

My VTR+ hatch does not have bums on seats sensors only belts in clips sensors.

 

Ian

Black 55 VTR+

[Ciaran2903]

To test if there are sensors in the front seat:

 

Have someone already in the passenger seat before the car is started, get in yourself (obviously to the drivers seat :D ) and turn on the car and drive off.

 

I would put money on the fact that there are no sensors in the seats.

 

Surely KFK would know?!!? :huh:

[wozza]

I had a mate sat in the passenger seat and because the thing was not clipped in it kept beeping at me.

[Johndouglas]

 

I would put money on the fact that there are no sensors in the seats.

 

Yesterday I put a heavy parcel on the front passenger seat and drove away. The seat belt sounder started although I was wearing mine. I stopped and rolled the parcel onto the floor. No warning ping. I then pressed down on the squab where the parcel had been. The 'ping; started immediately. Obviously the detector is in the seat.

[Ciaran2903]

I stand corrected!!!!! :D :(

[jonfish]

Just a historical aside. My dad had a Rover SD1 about 25 years ago. It had a seat belt warning light (just one light for all seats). Come to think of it, it probably only had belts in the front. Not sure. There were sensors in the seats. There were also rattles in the doors. Probably Citroen ripped both those ideas from BL :( .

One thing I do remember about that car was there was a warning light for any exterior bulb failing. Probably just worked on good old Ohm's Law and a couple of diodes. With all this fancy multiplexing I wonder why they don't have that now. Perhaps an annoying bleep would persuade people to actually check their lights sometimes. Bah!

[ham's c4vts]

There were sensors in the seats. There were also rattles in the doors. Probably Citroen ripped both those ideas from BL :D .

every one takes or nicks ideas from other companies, if thats what your saying then every manufacturer copied, nicked citroens front wheel drive! :(

[gosso]

'there was a warning light for any exterior bulb failing' This reminds me of one of my early Citroens (GSA Pallas) which had about 30 warning lights on the dash - It was like climbing into the cockpit of a Boeing 747. Gosso.

[wozza]

Citroen didnt exactly make the first FWD car just first mass produced one. Either way citroen have done so much for modern motoring. they also created first coil type suspensions as well i think.

 

First commercial diesel engines. First cars to have disc brakes etc. Citroen were one of the leading companies in there day for new technologies.

[Johndouglas]

Citroen didnt exactly make the first FWD car just first mass produced one.

The first was built by Alvis as long ago as 1928 but it didn't catch on. Then DKW and Citroen tweeked the design and Citroen produced the Traction Avant in 1934. Other car makers were slow to follow suit.

[ham's c4vts]

i think the made the first car with steering headlights too

[wozza]

Americans got there in 1912. Then alvis, then the germans then the french who made it popular.

 

And yep steerable headlights in there run of mill cars back in the 60's and i think earlier.

[Mat]

1st car that can dance and iceskate