Automatic Boot Light Switch - Anyone done this?

I’ve upgraded the boot lights in my NC to LED, I can now see what’s in my boot

For the moment, I’ve taken the power from the existing switch (which still controls the original and the new additional lights). 

However, this is a faff to turn the light on and remember to turn it off.  The obvious answer would be to fit a door closure switch to control the lights so they turned off when I closed the boot.  I don’t want to place the switch on the body work outside the weather seal as this would mean a hole into the boot with obvious water ingress potential.

The other alternative would be to use a tilt switch which (in theory) would activate when the angle of the boot lid was changed to open.

Has anyone done this mod and how did you solve the switch problem?

Thanks,

Simon

No, I have not done it, however, I do keep a torch in the boot for the few occasions when I need to look into the dark corners.

Gales

There is a switch incorporated in the boot lock mechanism. Why not take two wires from the original boot light and then your new light will go on and off with the original.

Some people have missed this switch in the past and thought the original boot light is manually controlled.

Richard

Mmm. I thought about a torch and for me, it’d either be rolling around in the boot on its own or lost under a pile of recycling for the tip, unavailable when I wanted it.  Hard wired lights are the way to go IMHO.

Thanks coconino

Genius! Of course, I’ll have a fiddle when (if)  it’s dry over the weekend

Guilty as charged, but on my Mk3 06 plate, the boot switch is just manual.

Does the latch switch have any other function e.g. Warning circuit to the ECU or elsewhere or is it just for this purpose?

 

I would guess it is part of the alarm and on the retractable hard top it stops the roof moving if the boot is released.

Are you sure that the light is only manual, I would have thought over the years many owners would have complained that by leaving the light in the on position when closing the boot had resulted in a discharged battery.

Richard.

Several years ago I had a Citroen Xantia which had a mechanical form of “tilt switch” to control the boot light, from memory it involved a ball bearing to make the circuit.

I replaced the switch with a mercury one after it gave some trouble, only cost a couple of quid and worked fine when I sold the car 2 years later.

111696411678 try that off ebay not the cheapest but very robust have used lots of them with no faults or failures

 

Got an owners handbook? - should be in it.

You are assuming the boot light is manual, so you switch the parking lights on as well - not necessary. The boot light will come on a) when you open the boot, and b) when you switch the parking lights on - that makes it manual - so you think.

The boot lights are also the tail number plate light - that’s why they come on with the parking lights. One tip, if you need the boot open for any length of time, get a normal wide blade screwdriver and press down on the lock ‘hook’ - this makes the light think the boot is shut, and stops draining the battery. DON’T forget you did this though - there’s a substantial Clunk if you try to close the lid without releasing the lock.

The boot light switch is part of the lock mechanism, and yes - it also signals the alarm system that the boot is open - it’s that way in case someone thinks your boot is full of goodies. I don’t have the electrics manual for the Mk3, but on my Mk2.5 if you open the boot, press door lock on the remote, then close the boot lid - the alarm system then clicks in - that’s when the lights flash. Conversely, you should be able to open the boot with the remote (if you’ve got one?) when the alarm is set - I do it every time I load shopping in the boot. Having taken the trolley back, I then open the doors with the remote and the alarm turns off.

 

On the MK3 there is a separate light in the boot. The number plate lights do not come on if you open the boot like the earlier model.

 

 

I have a similar question for my mk3.5. The switch in the boot turns the light off/on.

If I leave it on and close the boot - will it turn off automatically? How do I check that this is the case?

Coconino - Thanks for that, I wasn’t aware of it. However, the rest applies doesn’t it? Anyone know what happens on a Mk4?

All NC are the same, the light turns off when the boot is closed. If you want to try it, open the boot, turn the light on then use a screwdriver to latch the boot latch. Release the boot latch before closing the boot though…

 

Thanks!

Really? Going to try this tomorrow.  ■■■■■■, Could have saved myself a £1.50 door switch off eBay!

Or activate the video facility in a smartphone and shut it in the boot for a few seconds

You are correct, the boot light goes off when the boot is closed 

That’s a great idea, now I can finally be sure that the fridge light goes off as well !! 

I did exactly that I video’d it to prove to myself that it goes off.