W211 320CDI starting problem

[SL300-24]

Help please fellows.....

I have noticed that my E320CDI V6 is getting harder to start after standing overnight. So far it has always started but when I turn and release the key it cranks about 20 times before firing.
Once started it is fine all day, starts first time. Looking on google a few posts come up regarding some rubber seals in the fuel lines getting hard and letting air in when cold.

Can anyone shed some light on the problem before I have to take it to the local indy. If it is a simple DIY job I am up for it. Where are the rubber seal locations, and is this the most likely problem?

Thanks

 

[corned]

I think I would treat the glowplugs as the primary suspect.

I am not aware that the hardened fuel lines/seals afflict the 211s. Is the glowplug indicator lamp in the cluster behaving normally?

 

[SL300-24]

I think I would treat the glowplugs as the primary suspect.

I am not aware that the hardened fuel lines/seals afflict the 211s. Is the glowplug indicator lamp in the cluster behaving normally?

Yes no glowplug light showing after initial start up.....

 

[timtjohnson]

Did you resolve this. My E280 CDI (W211 2007) won't start first time after an overnight rest? No warning lights and glowplug light behaving normally.

 

[timtjohnson]

Update - My indie replaced the glow plug relay and all is well.