hi all!
2003 9-3 i get low beam light bulb failure 4th time within past 2 months, something tells me its not right having to replace bulbs so often. If anyone had similar experinece or has any ideas what may cause this problem please let me know. Thanks LeonJust a little easy test.
Check the voltage on the battery with engine not running (about 12 volts) and engine running (not over 14 volts). If you get over 14 volts with engine running you probably have a broken regulator. Bulbs don´t like to high volts. A simple volt meter do the job.
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Just to make sure, this is happening with both lamps and not just on one side, correct? If so, it must be a voltage problem as described by Blacksmith. If it is just one side, check that the lamp housing is secured properly and doesn't vibrate and that there is no moisture inside the lamp housing.
Also if it's just one bulb, it could be the dreaded orange bulb fail sensor, though I'm not sure if they were still using them in 2003.
If it is the sensor rather than the bulb, then the light will stop working and the warning will show up on the SID. Opening and shutting the bonnet to change the bulb then jogs the sensor and the new bulb obligingly lights up - for a while.
I think I threw away a couple of perfectly good bulbs before I twigged.
Cheers,
Colin.
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