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  #1  
Old 12-18-2000, 08:21 PM
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Join Date: Apr 2000
Location: Minnesota
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OH GOSH IT WAS COLD THIS MORNING.....my car had no heat at all, I did a search on monovale, but nobody talked about the 16v. Is there a monovale in there? I know is located
somewhere near the battery, but I don't see anything...oh please help is going to be cold again tomorrow. Could the fusses be part of this?! or coolant? (which I added more this afternoon)

thanks everybody and Merry Christmas to all =)

JohnSC16V
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  #2  
Old 12-18-2000, 08:28 PM
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W201 chassis uses a vacuum heater valve. Vacuum shuts the valve OFF. It is under the plastic air intake grill under the hood, on the passenger side of w/s wiper mech. Disconnect vacuum line from valve w/warm engine to see if valve still works.
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  #3  
Old 12-19-2000, 08:48 AM
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Thanx for the tips, now do I need any special tool to get to the vacuum heater valve? Do I need to pull out anything?
thank-you again.

JohnSC16V
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  #4  
Old 12-19-2000, 04:13 PM
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Only the plastic air intake grill. 2 plastic phillips screws & 2-8MM sheet metal screws. Must also remove section of weatherstrips, just pull up on them.
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  #5  
Old 12-20-2000, 12:58 AM
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Join Date: Apr 2000
Location: Minnesota
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hi M.B.DOC

okey,I disconnet the vale you were talking about. I do get heat but now what?! What do I need to replace now?! And by the way is this quick fix?! What happen if I leave it like this till summer?! Anyway, thank-you alots =)

John
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  #6  
Old 12-20-2000, 05:28 AM
Robert Z
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Which function has the vacuum heater valve?
Is there something wrong if I have no heat in my 16v during the first 10 minutes of a trip?
Thanks for any replies.

regards,
Robert
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  #7  
Old 12-20-2000, 09:47 AM
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The W201 Tempomatic system is VERY difficult to diagnosis unless you have Factory info on design of system. Also some test equiptment is needed to determine failure of componets.
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