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  #1  
Old 08-29-2013, 07:07 PM
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Location: North Missouri
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1999 SL500 AC issue

[SIZE="3"]Last week I purchased a 1999 SL500 with 22,000 miles that is very very minty. I drove it to KC last weekend and everything was perfect. My son and DIL took it for a spin and the AC blower died. We put in the garage and the next morning I headed home with everything working fine. The OAT was about 80 degrees F. Then I took it to Wallyworld for provisions when the OAT was around 95 and the blower motor shut down. I stumbled on to this link http://www.peachparts.com/shopforum/sl-forum/120267-1999-sl-500-blower-issue-help-please.html that was posted here long ago. I ran the diagnostics and bingo.....I came up with a egregious temp. I ordered the evaporator temp sensor from ******** and it will be here on Monday. I was dreading a huge repair bill but if this solution works I will be spending lots of time on this forum. Here is a picture of my new toy. Regards, Rick.



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Old 08-29-2013, 09:59 PM
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It sounds like a blower motor regulator that's going bad. On the W210, it's a common issue and not expensive to repair or do DIY
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Old 08-30-2013, 11:12 PM
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How the heck did you ever come accross a 99 with only 22K miles? I'd love to find one like that.
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Old 08-31-2013, 08:19 AM
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Nice looking ride. As mentioned check the blower regulator. I know on the E class of that year that there is an upgrade to blower regulator and it includes replacement with an upgraded blower too IIRC. Probably best to go ahead and update it and be through with it.
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Old 09-03-2013, 04:57 PM
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Before I change the blower regulator, I got a email from a guy that had the exact problem and he recommended changing the evaporator temp sensor. It' came today <$45.00 delivered. Now I have to figure out how to remove the panel under the dash. It looks like 2 screws and a large plastic keeper of some sort. Anyone ever removed this? The sensor simply plugs in to the system but getting to it may be a big headache. Regards, Rick.
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Old 09-04-2013, 05:38 PM
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Hello good helpers. Well, it wasn't the evaporator temp sensor so the next step is the blower motor regulator. Where is it, how hard is it to replace, where can I buy one and who do you recommend?

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