I have quite a few bad or dead lights in my car - upper brake light, number plate light and a few in the dashboard.

I bought some ERROR FREE 8 SMD T10/W5W/501 on ebay and just tried using them in my number plate light and the warning light came on.

Which lights can I change to LED, without triggering the computer?

I've bought some really cheap LEDs that should fit in the dashboard and the upper center brake light, but haven't tried changing them yet.

Is there any kind of LEDs on ebay, that just works in the car?

If I have to use a resistor with the LEDs, which one should I use?

Hi this may help you out

I had the same problem as you, i installed 501 8 SMD Error Free Canbus LED's for the sidelights and number plate, however the bulb warning light still came on

So what i did was simple, unscrewed the dashboard fascia and then took out the dashboard completely (its very easy to do trust me). When that was out i unscrewed the back of it and was confronted by a what looked like a white motherboard with the bulbs in etc, now the bulb warning light is concealed right at the top of the dashboard and no way of just taking it out, instead i just got a small piece of card to slot into the top that would cover the bulb light if it came on during ignition.

Now this is a very easy, simple solution, i havent experienced any problems so far and now my bulb warning light is not shown, even with my so called canbus error free LED's, so you can put as many LED's as you want without spending stupid money on purchasing resistors

When you come to sell the car you can just take it out and hey presto your light will be working again!

It took me 10 mins tops and now i can enjoy LED's without the stupid bright warning light glaring at me, my avatar is my car with them on with just sidelights on, they are incredible at night