EC stuck on.
MBWorld Fanatic!
Joined: Jan 2004
Posts: 5,939
Likes: 178
From: Seattle WA
99 E320
run the on-board diagnostics first and log the readouts. the EC/light is a protection
device which prevents burnout of the system. so don't try to fix the light. fix
the cause of the light staying on.
device which prevents burnout of the system. so don't try to fix the light. fix
the cause of the light staying on.
MBWorld Fanatic!
Joined: Oct 2007
Posts: 1,564
Likes: 19
From: SoCal
98 Brilliant Silver E320 Wagon
+1
Also, you might check for error codes B1233 and/or B1234 which are for the refrigerant temp/pressure sensor. Early model sensors were prone to moisture contamination causing the EC light to come one. A sensor with a better design was made available as a replacement.
Also, you might check for error codes B1233 and/or B1234 which are for the refrigerant temp/pressure sensor. Early model sensors were prone to moisture contamination causing the EC light to come one. A sensor with a better design was made available as a replacement.
MBWorld Fanatic!
Joined: Mar 2006
Posts: 1,627
Likes: 5
From: West Virginia
2001 E320 RWD - Brilliant Silver/Ash: 100,000+
OK so the light is on indicating the compressor is off (protection as mentioned). Fix the leaks, evacuate and refill the system and the problem is solved.
