Parasitic Current Draw - W124 300CE 1989
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Parasitic Current Draw - W124 300CE 1989
I have a 1989 W124 300CE with a parasitic current draw of 3.5 amp. I have removed all fuses in the fuse box and the fuse for the blower motor but the draw is still there. Are there any other fuses in addition to those in the fuse box? Any suggestions of where else to look or how to look for the problem
Thanks
Thanks
Out Of Control!!
Joined: Apr 2019
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From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
Proceed By Elimination
I have a 1989 W124 300CE with a parasitic current draw of 3.5 amp. I have removed all fuses in the fuse box and the fuse for the blower motor but the draw is still there. Are there any other fuses in addition to those in the fuse box?
Any suggestions of where else to look or how to look for the problem
Thanks
Any suggestions of where else to look or how to look for the problem
Thanks
See the PORTAL-DIAGNOSTOV free schematics at...
portal-diagnostov.com if you will.
Many modules can remain partially powered.
It's easy to waste time checking dead leads so its best to stay focused at this stage.
Last edited by CaliBenzDriver; Jan 30, 2026 at 06:02 PM.
Super Member
Joined: May 2024
Posts: 502
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From: Northern Indiana
2014 c300 w204.080 3.5 v6
I have a 1989 W124 300CE with a parasitic current draw of 3.5 amp. I have removed all fuses in the fuse box and the fuse for the blower motor but the draw is still there. Are there any other fuses in addition to those in the fuse box? Any suggestions of where else to look or how to look for the problem
Thanks
Thanks
Last edited by RobertR728; Jan 31, 2026 at 05:37 AM.
