I just bought a 2009 E 320 Diesel.
I noticed that the cluster panel does't have a light for "glow plug" when the tumbler is turned to the on position, before starting the car.
Even the weather in Texas be hot in this season the year my old Mercedes 300SD glow plugs light come on not matter what season the year.
Even glow plugs light not coming on, the car start the same as it was a gasoline car, at the first turn of the ignition key.
Are there some light or I'm confused?
One car dealer told me that the newer diesel cars do not have this feature anymore. What can you tell me?
Thanks.

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Nyck - TX - USA