Works perfectly on a 2007 Audi a3.. Tried various other ones but this one got rid of the codes off the dash.. The light out of The LEDs are constant and the cool "check flicker" when you turn on the ignition or start the car is still present.. Its class.. Cannot recommend this enough. Fantastic

Whilst my headlights were working fine with some different resistors (the orange type) I was concerned about how hot they were getting. The heat from them also meant that I wasn't able to locate them within the headlight housing as it would've melted wires and plastic, so I had to cut a hole in the headlight cap which was resulting in moisture getting in. So, I swapped out to these philips ones and they remain much cooler and have put them in my headlight housing. Whilst the instructions say you should keep them away from plastic I have had them on for a few hours and they can still be held comfortably within the hand, so I am not concerned. Like anything else philips they feel good quality and well made.

these leds are very over rated, very nice build quality but less bright than my standard hid xenon bulbs. my mk3 focus is know for it's poor lights . so I decided to swap to led bulbs. this is not a straight forward swap, having completed one I had one light with hid and the other with the leds. the leds has a good pattern but no real got spot, the light is cooler white than the xenon, but simply not as bright. so that's £145 including the canbus kit waisted. I am not some amateur ether. I've been building engine management systems and all other car related things for years. so believe me these bulbs arnt worth the money

Okay, so far as Audi A3 8p 2.0T ‘07 is concerned. Yes they work, 95% of the time. However, every so often, ‘ping’ up comes the warning light. So not infallible, my advice, at least on an Audi, ditch the resistors, try Twenty20 fan cooled leds, they show no codes on my mine at all, so glad to ditch the hassle of trying to make resistors work, cos the only ones that really work 100% are those gold coloured cheap ones that run hotter than a soldering iron!

No more error messages after installing these. :-)

Got a 16 plate Vauxhall Astra Mk7. After using 3 different canbus compatible led lights and 2 different canbus decoder, all being "branded", my lights work perfectly.

The decoder box itself is a better shape then most to fit in the light housing unit.

Don't buy cheap ones. This works with vag cars.

After having bought and returned several CANbus error cancellers I have finally found ones that work on a VAG CANbus. The only other ones that worked were the cheap gold/orange anodised resistors, although they worked they get dangerously hot, about 180c to 200c, whilst these Philips ones only get to 55c to 60c, so, no danger of melting plastic or burning paint or wiring under the bonnet. My car is a 2006 SEAT Leon mk2 and I had bulb flicker when turning on the ignition and the bulb warning on the dash when the lights were turned on, all fixed.

Value for the money, easy to install, does the job.