I've had my latest octavia for a month now. When i bought the car one of the sidelights had blown. Changed this bulb as soon as i'd got the car.

Over the last 4 weeks the other sidelight bulb has gone, as have the rear number plate lights (within 3 days of each other)

They've all now been replaced but I'm concerned there may be a problem with the electrics.

Should I be worried or have they all reached the end of their natural life at the same time (they're all the same type of bulb)

One thing to note is that they were all silvered on the inside of the glass.

thanks for any advice

May have been some low quality cheap after market bulbs.

I'd keep your eye on the situation, but wait and see how the new ones perform

Or, indeed, the originals. Certainly the insides of both my sidelights were black when I changed them for the Phillips blue-white ones (Powerbulbs freebie, along with BOGOF on 50% brighter H4s).

I'm sure it's just coincidence. None of the new bulbs have blown have thet?

However, there is a tiny chance that there is an overvoltage situation caused by a faulty alternator regulator. If you have a voltmeter you can do the following simple check.

With all the electrical equipment off, measure the voltage at the battery. Increase the engine revs until the voltage is steady. It should no more than 14V.

A small increase in voltage has a dramatic effect on the life expectancy of halogen bulbs.

I'm sure it's just coincidence. None of the new bulbs have blown have thet?

However, there is a tiny chance that there is an overvoltage situation caused by a faulty alternator regulator. If you have a voltmeter you can do the following simple check.

With all the electrical equipment off, measure the voltage at the battery. Increase the engine revs until the voltage is steady. It should no more than 14V.

14 volts is a little low to be a concern. Many cars' charging systems operate around or up to 14.2V. I'd consider anything above 14.5V to be high, and 15V and upwards is a definite cause for concern. Bulbs usually start blowing around 16V.

Sorry to disagree though......