Air Conditioning options
I know some of this has already been posted.
Unlike the 2002 model which had a 2-zone fully automatic a/c system, the 2003 comes with standard unit that is inferior for the 320 and an optional improved unit, I believe for both.
2-zone Thermatic is a non-digital system that looks pretty cheap though I imagine it works fine. It is certainly not state of the art. This is what comes standard in the E320.
A 4-zone Thermatronic option is available and really adds quite a lot. Firstly, the controls are all digital. Second, the rear left and right seats get their own digital controls that can either be controlled from the rear seats or from up front, say for children riding in back. Each of the four zones is regulated by taking into account the amount of sun in that zone as well as outside temp. The Thermatic doesn't use sun sensors at all. The upgrade also adds 2 additional air vents in the rear in the back side of the B pillars. Lastly, an activated charcoal filter with automatic as well as manual settings is only available with the Thermatronic. All this for only $550. (I've seen this price in several places and confirmed with my dealer). A pretty good deal considering manual rear side window shades cost $320 by themselves.
I'm not entirely sure what comes standard on the E500, I think it may include all of the above. At the least, it is a 2-zone Thermatronic system.
Once the cars show up at the dealers this will become more obvious. All of the brochures I've seen thus far (and I don't have a full brochure yet) show the digital a/c system on the E500 so it can be misleading.
You can see the Thermomatic version in the current M Class trucks,it looks and works very similiar to the new E Class version
The 500 comes with the 4 zone Thermotronic (no such thing as a 2 zone version) described above.
You can see the Thermomatic version in the current M Class trucks,it looks and works very similiar to the new E Class version
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