deepdivewh

I have a 2002 clk320 with 90,000 miles. climate control probems. I have cleared all error codes but 1 that is b1421, this will not clear and no a/c.
Freon is good, diagrostics look good but freon looks low. I add a little freon and it reads 35, blows cold air for about 2 minutes and then quits and we start over again---could use help from someone


mercedeslover
(will):confused