i have a 2002 e 430 the ac clutch is not engaging. has freon and on the controls the ec light stays please help i need ac its hot here in florida

I guessing that you meant to include the word 'on' after 'the ec light'.

The most common cause of the A/C compressor not engaging is low freon charge. The second most common is a faulty A/C temp/pressure sensor.

There is a built-in diagnostic system for the A/C controls. Info on how to access it and interpret the results can be found here -

AC Diagnosis | EClassBenz.com

Generally, A/C is not a DIY project since special tools and knowledge are required. If your A/C was working before you probably have a leak. An A/C tech can find the leak, fix it and pressure test before adding the correct amount of freon and oil.

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Good luck.






1998 E320 Wagon

i did recharge and vaccumed the system. i am a mechanic just don't have experience with mercedes

OK. After running the diagnostics be sure to check for the error codes (if there are any). If you want you can post the results out here.

Above link seems to be broken. Try this one instead -

http://www.eclassbenz.com/2010/02/how-to-diagnose-air-conditioning-malfunctions/

__________________
Good luck.






1998 E320 Wagon

HERE R THE CODES

EB1-226, 228 229 230 232 233 234 235 241 FF

Here are the descriptions -

B1226 In-car temperature sensor (B10/4)
B1227 Outside temperature indicator temp sensor (014)
B1128 Heater core temperature (B10/1)
B1229 Heater core temperature (B10/1)
B1230 Evaporator temperature sensor (B10/6)
B1231 ECT sensor (B11/4)
B1232 Refrigerant pressure sensor (B12)
B1233 Refrigerant temperature sensor (B12/1)
B1234 Sun sensor (B32)
B1235 Emissions sensor (B31)
B1241 Refrigerant Fill

Since you know the fill is correct, if it were me I would replace the refrigerant temp/pressure sensor. They sometimes fail giving the same symptoms which you describe. The sensor is on the receiver/dryer located at the front/left of the engine bay.

It's unlikely that all of these codes mean problems. Often one or two codes tend to cause others since the electronics in the car is so interwined.

If you haven't done so you might also do a little search on A/C issues in the forum as well as checkout the stickies (permanent threads) at the top. Hope that helps some.

__________________
Good luck.






1998 E320 Wagon

thank you for the info really appreciate it