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Ron, ASE Certified Technician
Category: Mercedes
Satisfied Customers: 34743
Experience:  ASE Certs.
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Ac problem, I put some in - it's an ongoing prob that I am

Customer Question

ac problem
JA: Have you checked the Freon level?
Customer: I put some in - it's an ongoing prob that I am just now addressing
JA: What is the model/year of your Mercedes?
Customer: EC light is on - getting code Ebi 459
JA: What year is your Mercedes?
Customer: 2002 E320 wagon
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: Freon... Am just researching now so I son't buy worng parts
JA: Anything else you think the mechanic should know?
Customer: blows good volume - just blowing warm of cool - never cold
Submitted: 9 months ago.
Category: Mercedes
Expert:  Ron replied 9 months ago.

Hello, my name is ***** ***** I am a professional here at Just Answer. I have noticed that your question was not getting a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here. In order to determine what is causing the AC to not blow cold the first thing you need to do is to connect a set of Ac pressure gauges and read the systems pressure. Normal pressure on a full system with the AC on and the compressor running should be right at 35 to 40 PSI on the low side and right at 200 to 225 on the high side. If you can check the pressure and post back with your reading I will see if I can help you with this problem you are having.