oooohhh yes can be a major problem if you snap one..

my advice get proper quality tools undo while the engines warm a keep fingers crossed some easing release oil if you can get any on them 30 mins prior to having a stab..

 

hi mate
if you could title future threads as i have done this one it would be most helpful

now...i'm no derv expert...but i believe if you can remove spark plugs then you can remove glow plugs...i'm sure one of our diesel owning enthusiasts will be along shortly with the full ins and outs


edit...beaten to the 1st post lol

 

are you def sure its the glow plugs? If your having starting issues this cold weather has caused a lot of pre-supply fuel pumps to fail (mine being one of them :frown )

 

Think so, it had a pre supply pump & relay in Summer due to a non start, really need to know if they are prone to breaking of any special tips on removal (thanks to Dailydoggy) for the first reply.

 

Very prone to breaking.

Old fashioned glow plugs were easy to snap and they were larger than modern ones - which are 10mm!

Before you change them, how old is your battery, as this could be the solution and is far less risky!

 

its not that straightforward either as you have to take the inlet manifiold off to get at them.

 

IMO you need to get any error codes read, the glow plugs may be ok?

If you do need to change them get a hold of some PlusGas penetrating oil, reputably the best there is, ditto what dailydoggy says & as Deano says the inlet manifold will have to be removed.
Using a Torque wrench, set just below the breaking torque for the plug, try and undo them. If they don't move apply some more penetrating oil & leave for 5 mins then try again!
Hopefully they'll come out OK :thumbsup

See PDF in link for Beru glow plugs torque settings PDF Link

 

As suggested, firstly satisfy yourself that the battery is 100% sound and then have a diagnostic scan done:cool

When removing the glow plugs I recommend removing the inlet manifold even if you believe to replace them without doing so. It will make things far easier and will prevent you putting the replacements in on an angle and cross threading them:thumbsup