Interior light

Technical Area Electrics & ICE
2

 Hi All

I have recently become the proud owner of a Mk3.5 Sport Tech Roadster Coupe. The interior light does not have a delay as fitted to most cars. does anyone know how I can make the interior light come on when I unlock with the remote and not go out as soon as the door is shut but stay on for a while then fade, this will allow me to put the seat belt on etc. Also has anyone fitted extra footweel lights.

Thanks in advance. 

Bob

3

 Dont know about the remote bit, but this is the unit i use for the Mk 1’s and 2’s, which stays  on for 30 seconds and fades away and will work fine in the 3’s also. 

http://www.ebay.co.uk/itm/Switch-Interior-Light-Delay-x-1Pcs-/390239393500?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item5adc1496dc

 

Has for foot well lights that is easy also, just get some LED strips off the bay in the colour you wish and just connect up to your interior light.

M-m

4

 Will this work with the led strips.

Bob

5

 Yes Thumbs up

M-m

6

apology for this thread up. i just wanna know if where did you buy your interior lights? ive been looking for auto parts and found out this one. please help me on this. thanks a lot.

 

Interior Auto Parts

7

Apologies as it feels like I am hijacking the thread but here goes:-

With reference to Mazda Menders time delay switch where did you/would I tap into the interior ligt circuit with the delay switch. I have a 2002 Mk 2.5 that I have added footwell LEDs (upgraded bulb in OEM light too as light inside car was awful) too so would like these to be delayed as well. Can probably find circuits using multimeter but if someones already done it life will be so much easier :slight_smile:

Any help greatly appriciated

Many thanks

8

Not sure if Mk3 interior lights take the same bulbs as Mk1, but if they do, something like this might be good (if it’s the right length)

http://www.ebay.co.uk/itm/8-LED-39mm-White-Car-Replace-Festoon-Bulb-Light-/110653792438?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item19c37ae0b6


9

i would strongly recomend not getting the above mate wont really be that bright and will emit less light than a standard bulb. there only normal led’s

 

they need to SMD led’s to be an improvement over standard. the above type is called festoon. :slight_smile: need to check the lengh like you say. iirc the mk3 and 3.5 are 32mm festoon. just make sure its not too wide to fit something like this is best really

 

http://order.leonlighting.co.uk/leds-for-cars/led-interior-light-bulbs/31mm-festoon-led-replacement-bulb.html

 

i can take a pic of my interior light if you wish so you can see how bright they are  :slight_smile:

10

 

I purchased these off an eBay seller.

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http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=120872370651

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They give a worthwhile improvement in the lighting from the interior light in my NC 3.5

I tried using the second bulb in the boot light but it is a little on the big side.

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I have also ordered the “Interior light Delay” from the link supplied by Mazda Mender. I’m not sure if it will fade a SMD type LED but I guess I will find out when I fit it!

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Richard.

 

11

 

I finally got around to fitting the “Interior Light Delay” unit that I purchased on eBay. It requires two connections, one to earth and one to the door switch wire.

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I fitted it to the rear of the driver’s door switch as per the enclosed instructions. It kept the interior light on for about 20 seconds, during that time you cannot lock the central locking, (I can live with that!) I guess the C.L. module thinks a door is open! The passenger door switch works normally (I can live with that!)  The door open light on the dash glows all the time, (Bu99er).

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I then tried wiring it to the back of the interior light, the passenger door now has a 10 second delay, the drivers door has a 3 second delay, the central locking does not lock during the delay cycle and the door open dash light still glows all the time! 

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Has anyone succeeded wiring a delay unit to a Mk 3.5  without the door open light glowing all the time?

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Richard.

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12

I went a bit OTT with my boot lights but still :smiley: get a sun tan off it haha Stick Tongue Out

 

 

 

 

 

 

 

13

Hi Richard

I think you are almost there.  It would appear that your time delay gadget is permanently grounding the switch wiring that goes to the door switches and instrument cluster etc.  This grounding resistance is low enough to make the warning light come on but not low enough to light the festoon lamp.

What I think you should try is to insert a diode (1 amp rating should do ) in the wiring from the interior light to the doors etc.  Leave your timer still connected to the light.  This should stop the “backfeed” through the timer.  The polarity of the diode has to be right but it won’t harm to try either way, the festoon light will only work with the diode the correct way.

Cheers

R-b

 

 

14

 

 

Thank R-b

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Yes I think that will work if wired at the interior light as you suggest. Just got to remember where I stowed the delay unit, it’s somewhere in the garage!

Any thoughts as to why I got a different delay period from each door when I wired it directly the interior light?

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Regards, Richard.

 

15

Hi Richard

If you have a multimeter then measure the voltage to ground at the light position when each door switch is operated.  It should be very close to zero.  If not this indicates some wiring, connector or contact resistance.  I am guessing but it would appear that the timer is very sensitive to this voltage , the closer to zero the longer the delay time, hence different resistance paths give different times.

Cheers

R-b