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#1
06-30-2008, 02:01 PM
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Clicking or thumping sound
I own a C320 2003 year model.When I insert the key to ignition I hear this thumping of clicking sound from the keyhole area (dashboard area) it continues for about 3-4 minutes after starting. Can some one help.
Thanks 
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#2
06-30-2008, 02:04 PM
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Common problem on the early W203 c-class.
Try searching on problems with a/c servo motor issues. Most common problem is a broken footwell flap lever.
__________________
MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator
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#3
07-04-2008, 01:31 PM
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It may be the purge valve for fuel evaporative system, normaly you can hear it when ideling and the thumping sound like a bad main bearing.
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#4
07-06-2008, 01:39 PM
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Thanks so much. It was the A/C servo. A footwell flap lever.
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