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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 11-13-2012, 07:21 AM
bluesman1957 bluesman1957 is offline
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Location: North Carolina
Join Date: Nov 2012
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Mein Auto: 2005 BMW 325i
2005 325i Transmission Light On

Service engine soon light and transmission indicator light on. Purchased a code reader and it indicates generic code PO 102 and says mass air flow low. It just had vanos hose and oil filter housing gasket replaced. Any and all suggestions to check would be appreciated. Vehicle has been a money pit for the last year...and life goes on...thanks a million for any help...
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Old 11-13-2012, 10:06 AM
joegr joegr is offline
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Location: Gulfport, MS
Join Date: Aug 2012
Posts: 203
Mein Auto: 2002 325i
Your code reader probably can't read the BMW transmission specific code(s) that is causing the transmission light. The $30/$40 PA Soft tools from China can do this and much more, but there are other options too. I would first suspect an air leak past the MAF or a dirty MAF for your low air flow code.
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