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Marty, Mercedes Technician
Category: Mercedes
Satisfied Customers: 53166
Experience:  Bosch Certified Master Tech. Over 35 years experience.
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Clk430: I have a 2002 clk430 and the AC isn't cooling. I

Customer Question

I have a 2002 clk430 and the AC isn't cooling.
I get a E61...416 error code and nothing else.
Also, I thought it might be low refrigerant so I bought a can with gauge. The low side pressure was so high that no coolant could be injected.
Also, for a while the blower stopped running but that issue seems to have gone away.
Please let me know your thoughts.
Submitted: 1 year ago.
Category: Mercedes
Expert:  Marty replied 1 year ago.
Hi Jeff, the EB1416 code if for the coolant circulation pump. That code won't cause the problem. If your low side pressure was high with the a/c compressor on it sounds like the compressor has gone bad. If the compressor is not pumping the low side will be high. I'd connect both a low and high side pressure gauge to the system and check the pressures with the a/c on. If the pressures are the same your compressor is not working.
Let me know if you have any questions.