Thread: W140 Vacuum Door Close Assist Pump Keeps Cycling
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Old 02-05-2009, 05:08 AM
syljua's Avatar
syljua syljua is offline
C140 CL500
  
Join Date: Jan 2005
Location: Norway
Posts: 132
Yes, its normal behavior for the CA pump. Perhaps you only noticed now, because
the rebuild of the pump has made it to run louder due to motor being louder,
or different mounting that lets vibrations gets thru to your passenger area?

br,
syljua
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1998 CL500 W140
1984 230E W123
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