Quote:
Originally Posted by sixto
The early W140 has a thumbwheel with detents at min, auto and max, corresponding to the min, auto and max blower settings in the W124 ACC. What's cool in the W140 is you can turn the thumbwheel so you get a little more or less air than the auto setting. In the W124 it's gale force, auto or butterfly f@rt.
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This function is without question a design feature of the CCU processor and programming and not a function of the input itself. If the CCU has not been designed to accept/recognise and process to a suitable output state this type of input signal it will make no difference having a different input.