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  #1  
Old 11-23-2003, 04:07 PM
edge's Avatar
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High pitch squel from cold start on 94 E320

In the mornings when my 94 E320 is first started, there is a high pitch squel under the hood. After a couple of minutes, the squel goes away. Does anyone have an idea of what I have to look out for? Thanks.
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  #2  
Old 11-23-2003, 04:12 PM
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Loose or wet serpentine belt?

Sixto
95 S420
91 300SE
87 300SDL
83 300SD
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  #3  
Old 11-23-2003, 05:27 PM
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possibly the air pump.
Mark
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  #4  
Old 11-24-2003, 11:33 AM
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I had a piercing loud squeal that would stop after a few seconds. It was coolant from a leaking water pump splashing on the belt whenever I came to a stop.

glenmore
1991 300CE
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  #5  
Old 11-24-2003, 11:37 AM
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The belt tensioner may need adjusting or replacing. Mine had the exact same symptoms.
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1993 320TE M104
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past:

1983 230E W123 M102
1994 E300D S124 OM606 (x2)
1967 250SE W108 M129
1972 280se 3.5 W108 M116
1980 280SE W116 M110
1980 350SE W116 M116
1992 300E W124 M103
1994 E280 W124 M104
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