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  #1  
Old 09-02-2003, 05:42 PM
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Join Date: Apr 2001
Location: PA
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99 E300D AC Stops...

Hello All,
The A/C in my 1999 E300D stops working on occassion... I'll be driving and I can sense the compressor doesn't come on. It might be after 5 minutes or after 2 hours.

Once I stop the car, shut it off for 10 seconds, then re start, it works fine.

Any thoughts or anyone experience anything similar?

TIA
Neil.
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  #2  
Old 09-02-2003, 06:01 PM
G-Benz's Avatar
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Join Date: Apr 2001
Location: Dallas/Fort-Worth
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Check belt tension. A loose or slipping belt will trigger the system to shut off the compressor to prevent damage.

You may need a new tensoiner if you are unable to improve the belt slippage.

Also see this thread...might be related.

1995 E300D - No A/C in the rain
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  #3  
Old 09-02-2003, 07:01 PM
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Cars after 1996 no longer monitor the belt for slippage!
Most likely cause is the evaporator temp sensor OR the refrigerant temp sensor.
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  #4  
Old 09-02-2003, 09:38 PM
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Our 1998 E300D went through a few evap temp sensors. Common failure and the symptom is as you describe.
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  #5  
Old 09-03-2003, 07:13 AM
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Thanks & Followup

Thanks GBenz, MB Doc, & Blackmercedes!

I had checked the belts, but tightness doesn't mean it wasn't slipping.

Is it easy to change the evaporator sensor? A DIY job?

Thanks,
Neil.
99 E300D
94 S350D
83 500SEC euro
79 406 Unimog

gone but not forgotten:
84 300D
84 300SD
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