Most people would credit the W124 as having introduced the combined interior light/suroof switch/seat belt reminder assembly. However, the very first cars had the older style as shown below. The change occurred some time around the change to the 1986 model year and the introduction of the series 2 W126.
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The early version featuring separate air temp sensor,
interior light and sunroof switch. |
There is also a variation in the air conditioner switch, with an early version showing the rotary dial at the centre, as per the previous W123 series:
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A picture taken from a workshop manual,
showing the rotary dial between numbers 55 and 59 |
The design of the vents also changed. It is unknown whether this and the dial above were simply pre-production versions or whether early production versions featured these parts.
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| Centre vent, with grooves continuing to the edges. |
Finally, the electric window switches featured an icon reminiscent of the switches found in early 80s Mercedes, however the switch itself is a new design:
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| Early style window switches. |
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| More commonly seen style of switch. |
