I looked at the manual on the web, and it does have glow plugs. But I found on my 4110, its hard to hear the click when they go off. But like has been said, if you watch the dash lights they are dim, then in 2 or 3 seconds they get bright, that is when the glow plugs have turned off as they have heated. I know mine doesn't seem to start as quick as I would like, as a tractor with a lot more hours did. So if its cold use the in gear or PTO on for a very few seconds, and it will start faster, as they will have been on longer. I think I have figured it out. These are new and not broke in, so they don't have the compression to heat up from the pressure in there. As the rings get seated it will have more compression and will start easier. Then the few seconds of glow plug heat will be enough to start it good, unless its really cold, then of course you will probably need to use the longer way.