15-02-2012, 11:38 AM
If it's missing on one cylinder, then yeah, probably that cylinders glowplug is f*cked... In which case, either drill it out, or just leave it alone and put up with the missing in the morning, maybe give it a bit more static timing... That'll help getting it running on all 4 quicker, and everyone loves a bit of injection clatter on a cold morning, makes you feel like more of a man with what sounds like 4 ball peen hammers smacking the cylinder head for the first 15 minutes in the morning 
If you want to check your injector on that cylinder, get out a screwdriver, place it on the injector body and stick it in your ear, if the needle is jamming, then you'll hear it in comparison to the other injectors... If not, then they're probably fine, as I've mentioned, my injectors have probably done over 200k miles, but they're still fine seemingly...
You can just get new nozzles if you want... DN0SD306 Bosch Part No: 0 434 250 167
I think they're on ebay for about £23.50 each... Which does seem expensive, but at least you know they're genuine Bosch nozzles...

If you want to check your injector on that cylinder, get out a screwdriver, place it on the injector body and stick it in your ear, if the needle is jamming, then you'll hear it in comparison to the other injectors... If not, then they're probably fine, as I've mentioned, my injectors have probably done over 200k miles, but they're still fine seemingly...
You can just get new nozzles if you want... DN0SD306 Bosch Part No: 0 434 250 167
I think they're on ebay for about £23.50 each... Which does seem expensive, but at least you know they're genuine Bosch nozzles...