MB E320 2002 AC Blows warm air from Drivers Side

Please understand that any competant shop that has the "machine" can do the job - there are two hose hook ups - your front hook up is inder a small panel to the right of the radiator - the other is easily found top side.

They code in the machine to the make/year/model - then the machine does the the work.

Dye is NOT needed unless the evac test shows a leak. A dye test, if needed will be like another $40 - I would say 95% of the evac's will be 100% OK - only 5% will have any major leak - which owner's report as a sudden failure of the system since a major leak all the refrigerant blows out fast.

R134 is a smaller molecule than the "old" R12 used in earlier series - so over time it is expected to leak out thru gaskets and such - remember we have 10-13 yr old cars !

I would check your local hard copy Yellow Pages - and many of the "jiffy" oil/auto work pieces have the machine - what the machine extracts goes into one storage cylinder which when full gets sent back to the supplier for proper recycling - what gets filled is all 100% clean R134.

The OP has a great car... after the aircon gets evac'd and recharged..

If you ever get to a retail auto parts store - or a Walmart - buy a bottle of Stabil Ethanol Marine formula fuel treatment - and dose the tank before your next fillup per the intructions on the bottle. That $9 bottle will be approximately 2 does.

The Stabil helps a lot of things with regard to your fuel system, including preventing corrosion issues with the fuel tanks sensor - I use it on all my cars including my own low milers in my stable (pun).

Per the diagnostic info battery seesm to be holding steady as well.

Since it has been 10 years - the original MB coolant is losing its anti-corrosive properties - and it would be prudent for long term care to have the coolant changes to MB-Coolant/Xerex G-05 and ONLY use distilled water if you need add water to the mix.

The engine interior components are a real electrolisis waiting to happen caused by dissimilar metals. Fresh coolant will keep nasty things from happening.

If you do ever lose battery power after long periods of non-use - please be familair with the reset procedures in the owner's manual including having your radio code handy. Lost power, and not properly resetting the access systems when you get power back - also leads to more costly things.

Great car - keep the beat !