SL55 AMG, SL63 AMG, SL65 AMG (R230) 2002 - 2011 (2003 US for SL55 and 2004 for the SL65)

SL55/63/65/R230 AMG: sl55 climate control issue any ideas

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Old 03-05-2020, 03:56 PM
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Sl55 2003
sl55 climate control issue any ideas

sl55 climate control internal fan does not turn off even when car powered off and key removed , otherwise it works
Drains battery over night. what can it be? The fan is inside this unit also one led light always on , on the fan control knob.
Old 03-06-2020, 04:20 PM
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If the blower won't switch off, then the problem can be the blower assembly or the pushbutton control unit. Since you've always got a segment lit on the control unit, I'd guess it is the issue.
Old 03-06-2020, 05:33 PM
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Originally Posted by Rod_84
If the blower won't switch off, then the problem can be the blower assembly or the push button control unit. Since you've always got a segment lit on the control unit, I'd guess it is the issue.
Blower assembly( little fan inside the control unit). Not the main blower unit. I would love to swap out and test but need someone local that has one on the shelf.
Old 03-07-2020, 11:06 AM
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To be clear, I was referring to the main blower unit.

Since you have Star Diagnosis, you ought to be able to confirm the blower unit is your problem, I think.
Old 03-07-2020, 11:17 AM
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Originally Posted by Rod_84
To be clear, I was referring to the main blower unit.

Since you have Star Diagnosis, you ought to be able to confirm the blower unit is your problem, I think.
main blower is fine , I just cant seem to turn off the control completely, the control unit has a small fan inside the can be set to run 30 min after engine turn off.
mine just stays on all the time draining the battery , im on long island I was hoeing someone had one I could swap it to see it the control is the issue.
Old 03-08-2020, 01:41 AM
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I think you have enough diagnostic information to purchase a replacement pushbutton unit with the confidence that it will correct your problem.
Old 03-27-2020, 09:25 PM
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Fixed with new control unit ( the one with dials)

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