Where is MAF senor on 2005 BMW 235i?

SOURCE: HELLO, I HAVE TROUBLE CODES PO330,PO340, ON MY

The Cam Position Sensor is a common item to fail. However, the cam positioning mechanism can fail too giving that code.

There are two sensors and the Exhaust Cam Sensor is most common to fail. I always replace both.
Te CKP's are on the top front of the engine next to the cylindrical operation solenoids.

Knock sensors fail too and need checked or correct feedback to ECU with a scanner.
Find a shop near you at http://www.iatn.net/shopfinder/

These engines require regular oil changes with quality synthetic oils and OE filter....not a FRAM or WIX !

Buy only BMW sensors ...aftermarket have high failure rate.

Marvin

• 85242 Answers
• Posted on Jun 08, 2012

SOURCE: 2007 BMW 328i IAT Wire Colors in MAF Sensor

If you are installing a so called "chip" don't do it, it can harm the engine due the changes it causes in fuel control as related to Intake Air Temperature and burn holes in the pistons. All that little part really is, is a $.50 (50 cent) resistor that you can buy from Radio Shack, it is smoke and mirrors and it also will void any warranty you may have. I for one strongly advise against installing it, it will make not difference in power and all there claims are just lies and falsehoods..

SOURCE: LOCATION OF THE THERMOSTAT FOR 2005 BMW 325I

That plastic hose is where the thermostat is located.
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BMW OPS for IBM T30