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Discussion Starter #1
in florida is a little colder then usual, so i need to warm up a little, but yesterday the heat does not blow hot, no matter the what i do(turning the knobs all the way to hot) anybody know what it is ?2005 sl500
thanks for your input
 

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2003 SL500
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69 Posts
Not enough information.

Are you in the "Auto" mode or "Manual?".....

What duct outlets are you checking?......

What is the engine temp needle reading?....

Are you able to vary the fan speed?....

If using the center vent, is it set to the "warm" setting?....
 

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Discussion Starter #3
Not enough information.

Are you in the "Auto" mode or "Manual?".....AUTO

What duct outlets are you checking?......FRONT BOTTOM

What is the engine temp needle reading?....OVER 80

Are you able to vary the fan speed?....???

If using the center vent, is it set to the "warm" setting?....
DONT KNOW THAT ONE


THANKS
 

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2003 SL500
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Ok, try this..... When you say you're in the "Auto" mode, I assume all three knobs say "Auto".... (Items 2,6, and 10 on page 148 of the owners manual.)

Put the system in the "Manual" mode by pressing these 3 knobs...

1. Turn the fan speed knob to the mid-point. Does the fan speed increase?

2. Turn both knobs 2 and 6 to the 9 o'clock position.

3. Turn knobs 1 and 7 fully clockwise.

4. Make sure button 8 is not illuminated.

If all is well, you should be getting heat from the dash vents in about 45 seconds.

I NEVER run my system in the Auto mode.
 

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Why never in the "auto" mode? Thanks.
 

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2003 SL500
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Just a matter of preference. In the manual mode, I can have both temp and airflow directed where I want it.

While the auto system works just fine, it's just a bit too subtle for me.

BTW, did you discover why 'no heat?"
 
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