If one blows replace both of them with the Phillips Xtremevision range or Osram Night Breaker Unlimited:
I always use these in any cars with halogen lights, just a tad brighter than your regular globe which is always nice.
http://www.powerbulbs.com/au/product...on-130-h7-twin
The +130s just came out, but I've used +80s and +100s before across multiple cars, good lights.
Or these which I have in my WS Fiesta at the moment:
http://www.powerbulbs.com/au/product...r-unlimited-h7
They're still 55W globes so there is no worries about melting wiring or reflectors unlike people who put in higher wattage globes such as 100/130W ones.
Fiesta is a bit of a pain in the *** to do globes on though, even with the head light assembly out of the car, not much room for people with fat fingers like me.