high pitch noise

mrjtodonnell

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Oct 26, 2008
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Hi,
99 slk 230,there is a high pitch whining noise inside the car,had it checked by the dealer and confirmed it is either a vacuum pipe or a electronic component inside the heater control.
A easy fix is to run the heater on low all the time,that did the trick for a while now the sound is getting worse,i now need to take the heater control system out to remedy the problem.
The problem is,how do i take the heater and dash assembly to bits.
Any advice.
Cheers
 

stella best

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Dec 21, 2006
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Are you sure its the heater as i had a simalar sounding prob on my ML and it turned out to be a cooling fan on an ecu behind the bulkhead that mercs said wasnt there so it couldnt possibly be that but as the info i get on here is always spot on i shouted abit louder till they listned then they fixed it F O C
Just an idea (what do i know :lol: )
Cheers
Stella Best (drink of the day)
 


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