AC whistle? - MBWorld.org Forums

Oct 14, 2012 | 01:03 PM

MCF

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E350

AC whistle?

Ever since I picked up car from Service B(which did include cabin filter change) the AC has "whistled" at moderate to high fan speed. It is not the fans itself but sounds more like the air flow path or something. Anyone else ever experience this? Maybe the cabin filter is torn or installed incorrectly causing the air to "whistle" at high flows?????

Oct 14, 2012 | 01:50 PM

MCF

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E350

Also is there the cabin filter and another AC filter or just cabin filter? If there r two where is the second one?

Oct 14, 2012 | 02:31 PM

konigstiger

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From: North Scottsdale, AZ

'71 Pinto

One cabin filter located passenger side to inspect simple remove cover underneath. If you have not already done so, check to se if all vents are properly open.

Oct 14, 2012 | 02:48 PM

MCF

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E350

Thanks. All vents r open but that is exactly what it sounds like. Like a vent is partially closed.

Oct 15, 2012 | 09:04 PM

telemakhos

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From: Canada

E350 4Matic 2011

I had something similar on my old Benz. I took it back to the dealer and they fixed it quickly - some filter was not completely seated if I recall correctly.