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Old 08-27-2002, 02:26 PM
300EE320 300EE320 is offline
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Join Date: Jun 2001
Location: California
Posts: 327
Thanks Paul,

I gave it a quick parking lot inspection and the belt tension looks okay. I replaced the belt a few thousand miles ago. The compressor pulley is turning, but the clutch is not engaged.

Can someone walk me through the procedure for jumping the high side pressure switch and / or the thermostatic switch? Where are they located?

Of course I'll check for voltage at the compressor first to rule out the clutch coil. I'll also try your trick of disconnecting / reconnecting the battery. I don't have a pulse counter. Is that the same is the DIY "code reader tool" that has been described in old posts? Please elaborate.

Thanks again!

04 ML500
02 E430

Experience is something you don't get until just after you need it.

Last edited by 300EE320; 08-27-2002 at 03:39 PM.
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