1997 E420...
The ac blows very cold, and I replaced the voltage regulator but no change.

The Climate Control unit shut on and off, sometimes. It will reset itself to another temperature and fan value. When it does, the recirc light blinks once. As it happens, the blower turns off and then comes back on a few seconds later. The problem seems to occur for no reason, and the blower (flickering) always happens when coming to a sudden stop...

What are your thoughts? Oh, I also replaced the fuses...

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2008 S550
2010 GLK350
1997 E420 (retired)
2005 CLK500 (retired)