ML320/W164 AC blower not working (error 900E)
09-09-2024 | 12:25 PM
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ML320 CDI
ML320/W164 AC blower not working (error 900E)
Hey everyone,
I’m having trouble with the AC on my late 2006 ML320 CDI (W164). The blower stopped working, but the radiator/AC cooler fan is still running, and the AC control panel lights are on. Checked all fuses and ran a code scan which revealed error 900E. I’ve read this could be related to a compressor or electrical fault (maybe low voltage to the compressor or even SAM module issues).
The error text was "Local undervoltage at terminal 30 (voltage below 9v)" - anyone know where this terminal is? I was looking at the compressor but access seems tight. I might get it up on ramps over the weekend and have a poke around from underneath.
Has anyone had a similar experience, and could it be a faulty climate control module? Appreciate any advice - at the moment we have no cooling or heating which is going to be a problem in winter
Thanks in advance!
I’m having trouble with the AC on my late 2006 ML320 CDI (W164). The blower stopped working, but the radiator/AC cooler fan is still running, and the AC control panel lights are on. Checked all fuses and ran a code scan which revealed error 900E. I’ve read this could be related to a compressor or electrical fault (maybe low voltage to the compressor or even SAM module issues).
The error text was "Local undervoltage at terminal 30 (voltage below 9v)" - anyone know where this terminal is? I was looking at the compressor but access seems tight. I might get it up on ramps over the weekend and have a poke around from underneath.
Has anyone had a similar experience, and could it be a faulty climate control module? Appreciate any advice - at the moment we have no cooling or heating which is going to be a problem in winter
Thanks in advance!
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