We had a mid-1990's W124 into which a previous owner had fitted aftermarket aircon. Loads of W124s didn't have it as standard at that time. I seem to think it was a well-regarded brand, but it was hopeless. It just didn't work properly when it was hot outside!![]()
some seem to integrate very well, whilst others just have a little button on the dash by the gear stick..
im sure some were very good, perhaps as good as the original, but from understanding in the times i was researching when buying mine, the radiators were not changed when upgraded to air con, and in doing so, the system was semi rubbish, those that did upgrade the radiator seemed to work as good as the original.. would be good to see two w124 side by side, with and with out... to see the tangible difference