Passenger light goes out on 2005 TT. Turning headlights off and back on seems to ''fix'' the problem for a while. Swapped bulbs from side to side and problem stayed with the passenger side.
If it's the ''ignitor'' can someone explain why the bulb would come on then go off? Isn't the ignitor's job to turn the bulb on and once on shouldn't it stay on without the ignitor being involved? And if it's the ignitor then why would turning it off then on ''fix'' the problem? If the ignitor is bad, wouldn't it fail to ''ignite'' when you turn them on?
I'm really not arguing just trying to understand since the ignitor is rather expensive...it just seems like it would be something else.
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Re: Audit TT passenger headlight goes out
The ignitor or ballast must stay energized for the bulb to stay lit..If the bulb comes on then goes off, or flickers, then the ignitor is defective. You are in the early stages of failure, it will eventually stop working altogether
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When the same bulb burns out often,it is usually vibration that does it.When driving at night is that headlight a steady light on the road or a shaky light?
Is that headlight assembly tightly mounted and the bulb secure in the housing?
Did exactly as you said, replaced both bulbs with the d2s as you said and got them on ebay, driver side was clearly more difficult to put in, passenger side very easy, worked perfect for 1 day and the intermittent problem returned. What to do.
I'm having the same problem wiht my 2004 TT. Luck for me, the problem followed the bulb. I can't answer the question about the ignitor, though replacing it seems to be your fix. The ignitor ain't cheap, but the cheapest place I've found is www.1stvwparts.com. Good luck.
You can change the bulb easily yourself in about five minutes, especially on the passenger side. You may want to disconnect the battery, though I don't know if that is necessary. You may also want to handle the bulbs wearing latex or nitrile gloves so as to not get your skin oil on the glass.
1. Remove the decorative cover that conceals the Coolant reservior. There is a single philips screw near the firewall that holds the cover down.
2. Find the back of the headlight and pull the metal wire clip that holds the back of the headlight cover toward the engine. Remove the cover.
3. Look inside and find the back of the HID bulb--it will be toward the outside fender. Twist the connector until it separates.
4. There is a retainer ring that holds the bulb in. Again, twist that until it comes loose. The bulb should come right out.
5, Put the new bulb in, noticing the notch is on top. Also, attach the retainer ring. It is marked "Top" to help orient it. Reattach the connector with a twist.
6. Make sure everything is firmly in place. Reconnect your battery and test the lights. Finish putting anything else back on.