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#1
08-03-2010, 09:53 PM
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Bad MAF
First time post. I reecently just started having problems with my 2002 3.0 X5. The car is running rough and the service light came on. Upon pulling the codes I am getting multiple cylinder misfires, and codes 0171, 0174, 1085, and 1083. Reading some of the messages posted I disconnected the MAF and the car did run better. Upon reconnecting the codes were thrown again. I looked for vaccum leaks but found no cracked hoses. Does this sound like the MAF is the culprit? If so, do I replace with OE part from dealer at $480, or do I try aftermarket? Any recommendations?  Thanks, AC 
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#2
08-03-2010, 10:26 PM
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How many miles on yours? I have an extra OEM MAF for cheap if you need one to try to see if the code will disappear..PM me.
__________________
2003 BMW E53 X5 4.4i - M62 engine (Non Sport with Premium and Cold Weather Package) Color: Steel Gray Metallic Mods:4.6is Exhaust (Pipes, Mufflers and chrome oval tips) BMW Sport package Taillamps, BMW Tire Valve Stem Caps Medium tinted front windows JVC HD Radio Alpine 4x100 channel Amp Orion 600W Mono HC Amp Three 12" Sony Xplode in subwoofer enclosure
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#3
08-03-2010, 10:53 PM
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I forgot to mention the miles on the car are 112K and I also tried replacing the spark plugs, but no luck.
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#5
08-21-2010, 12:36 AM
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Try cleaning you MAF sensor first (as stated above). Then if that doesn't work, you can get an OEM Bosch sensor for around $180.
Pelican has the Bosch sensor for around $225. Autohausaz.com has the Bosch for $180. Don't bother with those ebay MAFs. They are poorly refurbished by people who don't know what they are doing. I went through two of them and they had really poor performance. waste of time and poor customer service.
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