Another Glow Plugs Issue

[SatchW211]

Hi All, apologies if i'm covering old ground but i cant seem to find an answer (i have looked on lots of forums)

I have the glowplug warning light staying on longer than normal, and the cold starts are taking ages now (10 seconds or so)

I have read lots about changing the plugs when the engine is hot etc, and using correct tools which i am going to buy (along with the correct plugs - BERU i believe.

I have the W211 2006 E320Cdi V6 - from what i have read the process of changing the glowplugs in the inline 6cy engine is pretty straight forward - but in the V6 most of the plugs seem to be well covered by the intake piping.

Can anybody show or tell me exactly what needs to come off (other than the engine cover) to get good access to the glowplugs.

I should add that i have had my diagnostic kit on and it looks like 3 of the plugs are not playing ball - so i am going to change them all as i have no history of when they were last changed and the odo reads 113,000.

Thank you in advance.

 

[Gareth]

Just be aware that the issue may not just be down to the individual glow plugs, the control unit is also a common failure (I had mine replaced a few months ago).

 

[evansaj23]

Hi, I changed all mine on the ML a couple of weeks ago, only thing I removed was the interconnecting air intake pipe from the filter housings and the turbo, just take your time it took me around an hour to do the set.

 

[zipdip]

Are the 3 plugs all on the same side of the engine,if so could it be a problem with the control

 

[kungfupanda]

I had the same problem, changed the plugs and it didn't solve the problem. It needed a new glow plug relay unit.