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Go Back   Benzworld.org - Mercedes Benz Discussion Forum > Mercedes-Benz Roadster Forums > R170 SLK Class
Supercharger engaged at cold startup Supercharger engaged at cold startup
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Old 01-16-2001, 03:49 AM   #1 (permalink)
RobW
 
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Supercharger engaged at cold startup
I have noticed that the supercharger on my 2000 SLK seems to be engaged when the engine is started cold and stays engaged for a few minutes while the engine warms up. Is this normal and does anyone know the reasons for this?
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Old 01-16-2001, 03:52 AM   #2 (permalink)
Bruce R.
 
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It helps the catalytic converters to warm up.....
It's part of the emissions controls and is normal.
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Old 01-16-2001, 04:18 AM   #3 (permalink)
Max (GR)
 
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Bruce, where do you get all this info??? :-)
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Old 01-16-2001, 04:21 AM   #4 (permalink)
Bruce R.
 
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Here....
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Old 01-16-2001, 05:54 AM   #5 (permalink)
Arnee
 
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If the engine temp is <~60 degC, the SC will be on.
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Old 01-16-2001, 06:06 AM   #6 (permalink)
Bruce R.
 
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I can hear mine cut out well before that. Seems like it cuts out at...
about the point where the needle moves (40deg.C). I could be wrong though.
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Old 01-16-2001, 11:26 AM   #7 (permalink)
edwww
 
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Mine stops before any needle movement, after about 20s (nt).
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Old 01-16-2001, 12:55 PM   #8 (permalink)
Arnee
 
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Mine seems to wait until the needle moves closer to 60.
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