Changing glow plugs

[Sanjøy]

Afternoon all, is changing the glow plugs on the old panzer a tough job ? I know that the 6th plug is meant to be a bit more involving due to the fuel rail being in the way. The Merc parts man also suggested that it could be the relay. I guess raking one out cabling it back up and firing her up is a bad idea ?

[Dominic]

I had them out on the Discovery when I was changing it's head; not too difficult; just nuts n bolts - however, I'm sure the MB lump will be a bit more high tech than the landrover!

[r10crw]

I gave up on the 6th all together and only attempted the first five. One of them would not move and sheared off, ended up getting it out with an easy out but at one point I though the head was coming off. Yours will be fine Im sure,
Craig.

[Sanjøy]

Cheers, did you go for the OEM or fleabay ?

[r10crw]

Cheers, did you go for the OEM or fleabay ?

No idea mate, Ive got an account at Dingbros so its just what they sent out. I guess standard?

[Sanjøy]

Cheers, did you go for the OEM or fleabay ?

No idea mate, Ive got an account at Dingbros so its just what they sent out. I guess standard?

£100 or £50?

[Stu160]

Make sure the engine is hot before your you start, and if any are being a bugger, leave it in and do the rest, better to change most of them, than to bugger one, then have to take the head off to get it out.
Also, soak around the top of them in WD, or some other release gloop a good few days before if you can.

Have fun.

Stu

[r10crw]

As regards freeing the stuck ones, I changed the injectors recently and can recomend Coke as a freeing agent! The Glow plugs are threaded so less liekly to help but interesting none the less.

[steviej]

If you disconnect them all then take a live wire and touch it onto the fed side of each one individually you will know if they work or not, if the wire sparks ie the plug is drawing current then its ok, if no spark its u/s ... May save you some time and heartache !

[Sanjøy]

If you disconnect them all then take a live wire and touch it onto the fed side of each one individually you will know if they work or not, if the wire sparks ie the plug is drawing current then its ok, if no spark its u/s ... May save you some time and heartache !

Cheers. Got a spark from all of them. Turning the key to p2 sees the glow plug light off after a couple of seconds. P3 it catches easily but the glow plug light comes on.

The plugs look pretty corroded in there and might be a pig to remove.

Does the ecu expect a certain resistence from a 100% working plug and stick the light on when it sees them degraded ?

Tia

[steviej]

Could be the relay fuseable link blown, read this thread, sounds like your fault.
forums.mercedesclub.org.uk/showthread.php?t=80809

[Sanjøy]

Could be the relay fuseable link blown, read this thread, sounds like your fault.
forums.mercedesclub.org.uk/showthread.php?t=80809

Cheers will take a look at the relay although my soldering is woeful.

[thinfourth]

Bloody glow plugs

Just snapped one on the Landrover

Oh well off with its head

Helpers welcome if anyone is really bored some weekend and wants to learn oily stuff

P.S. Bring your own stool you need it for working on a landrover

[Sanjøy]

Could be the relay fuseable link blown, read this thread, sounds like your fault.
forums.mercedesclub.org.uk/showthread.php?t=80809

Cheers will take a look at the relay although my soldering is woeful.

3 out of the 6 had blown. Soldered some 30a fuse wire on there as per the MB forum. Still getting the glow plug light after start. Short test drive started smokey then cleared up. Longer test drive needed.