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E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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Old 12-15-2014, 02:50 PM
smason smason is offline
Registered User
Location: Philadelphia
Join Date: Dec 2014
Posts: 1
Mein Auto: BMW 330Ci
No heat or A/C, no air flow, need advice DIY

Hello all,

I have an 03 330ci with no air flow. I hear the fan motor running but there is no air in any of the vents. Oddly enough though, when I turn on the defroster I do feel the air on the windshield. I have done lots of research so I either need a new blower motor fan or a new FSU (final stage unit/resistor). Which one do you think it is? I want to fix it myself but I need to know which part to order. At first I thought the blower fan motor was broken but I can hear the fan on HIGH, and the defrost works. But NO AIR FLOW! Please Help!
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330 ci, a/c ac blower regulator, fsu, heat, no air flow, vents

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