2001 E320, AC voltage appears to drop - AC blows like its set to auto
07-25-2016, 04:33 PM
#1
2001 E320, AC voltage appears to drop - AC blows like its set to auto
The AC blows cold, but doesn't blow consistently. It will go from barely blowing, to full force, and in between, all on its own. There's no correlation to being at a stop or accelerating, it appears to act on its own at random times.
When I set the AC to auto, it actually worked more consistently in accordance to where I had it set fan speed wise.
Anyone have ideas? Is this common?
I hope it's not the regulator
When I set the AC to auto, it actually worked more consistently in accordance to where I had it set fan speed wise.
Anyone have ideas? Is this common?
I hope it's not the regulator
Last edited by youreviltwin; 07-25-2016 at 04:46 PM.
07-26-2016, 12:17 AM
#2
MBWorld Fanatic!
Join Date: Jan 2009
Location: V E G A S
Posts: 9,067
Received 1,730 Likes
on
1,380 Posts
1922 Ford Model T / no OBD
Common situation is diverting the air flow from dashboard vents to defrost, what makes you feel like changing the blower speed.
That happens when you have vacuum leak and correlates to open throttle.
Check that before dropping parts in.
That happens when you have vacuum leak and correlates to open throttle.
Check that before dropping parts in.
07-26-2016, 09:28 AM
#3
Out Of Control!!
The AC blows cold, but doesn't blow consistently. It will go from barely blowing, to full force, and in between, all on its own. There's no correlation to being at a stop or accelerating, it appears to act on its own at random times.
When I set the AC to auto, it actually worked more consistently in accordance to where I had it set fan speed wise.
Anyone have ideas? Is this common?
I hope it's not the regulator
When I set the AC to auto, it actually worked more consistently in accordance to where I had it set fan speed wise.
Anyone have ideas? Is this common?
I hope it's not the regulator
Sounds like your fan system is responding correctly to different cabin environments---fan runs faster when cabin temps hot and slows down as cabin temps that you preset are met---enjoy and watch out for the less learned spammers at Ben's Wurld!!
07-27-2016, 12:24 AM
#4
MBWorld Fanatic!
If your fan speed is not consistent - then sounds like a duck - quacks like a duck - you might consider the blower "regulator" - if it has not been "updated" and is original regulaotr - the W140 regulator works fine for splice in and use with thermal paste between regulator and baseplate..
