Replace All Glow Plugs At Once?

[fbson]

What's the best plan here? I tested the one easier-to-get-at glow plug on the 2006 2.8CRD the other day and it was dead / open circuit. The others are a bit more of a challenge to get at so I didn't bother even to test them and bought a set of 4 - £35 delivered for the Bosch ones I'm replacing. They turn up, I remove bits to test the others, and of course the other 3 all have pretty low resistance...! Should I replace all anyway? I'm thinking I will, partly as I have them and I guess the others might fail in the winter perhaps, and partly as one of the 3 that tested ok that I removed is a bit sooty.

What would you do?

Thanks.

[legonsuk]

I would replace them all m8 i did.

[fbson]

Thanks for that - I thought the same and went for it this evening. It was a bit of a mission considering it was only glow plugs - ridiculously difficult in fact for a service item like that I'd say - but a quick attempt at starting afterwards had it starting better than it ever has done for me so a good move I think. Thanks to the YT videos on it, mainly the one in Russian showing the removal of the plug 'through' the partly removed alternator housing.

[BumBle02]

Yes Andy on youtube do's a good one on fitting then.

[BumBle02]

Yes Andy on youtube do's a good one on fitting then.