2006 s60 Blowing Bulbs continually

Pabco · Post by **Pabco** » 03 Nov 2010, 11:01

Dear Reader
I have an S60 Volvo and love it. But since I bought it around a year ago every time I replace a globe, headlight taillight or other then about a day later the next bulb blows.
Is there a known problem with voltage overage or has anyone else heard of a similar issue
I would deeply appreciate some help as you take it to the dealer they replace the bulb and like clockwork it blows again and I am up to around 10 bulbs now.
Thanks in anticipation

jda2000 · Post by **jda2000** » 03 Nov 2010, 16:44

check the bulb socket. Replace if it looks like overheated.

randyman · Post by **randyman** » 09 Nov 2010, 14:24

Yes, check the voltage with a meter at the battery with the car running. Should be about 14 volts. If it is 15,16,17 volts then replace the alternator. If it appears normal then turn on alot of electrical accessories and see what it reads. Also increase engine RPM's in both cases to see if it shoots up high.

Retired MVS Contributor · Post by **Retired MVS Contributor** » 09 Nov 2010, 15:12

If you are getting 16, 17, or 18 volts measured on the battery with the engine running, the alterator is putting out and is OK...The blown bulbs indicate a bad voltage regulator and it is all that you need to replace...A new voltage regulator would cost less than $100, while a rebuilt alternator would be $300...The correct output should be a little more than 14 volts...If the alternator itself were bad, barring noisy bearings, there would be no output at all and you would read 12.5 volts (battery voltage) with the engine running...Don't wait too long to remedy the situation...Over-voltage can damage the control modules...