How much will it cost to replace one headlight on my Volvo?
Well, that depends....
In the best case we install a new “long-life” bulb and we’re done ( <$40 )
However, starting around 2004, some cars came equipped with bi-Xenon, high intensity discharge (HID) lighting systems, and these bulbs are $125 each.
However, Volvo has a service bulletin regarding rapid bulb burnout that introduces a resistor kit, so if you don’t already have one, it may be a good idea ( $150 with 2 new non-Xenon bulbs)
However, we will always check to see if the reflector that surrounds the bulb is not broken. If it’s broken and wobbling then again expect rapid bulb burnout ( and $525 for one new headlight assembly)
And lastly, one or two time a year we discover the ECM ( electronic control module ) that sends the signal to the headlight has also failed. If so, then after about an hour of diagnosis, $750 to $1,250 ( per side)
Our suggestion for smart maintenance is :
a) replace faulty headlight parts as soon as possible
b) always change bulbs in pairs
b) install the headlight resistor kit where applicable