View ALL BMW Z4 Parts
Remember to replace the BMW Air Filter in your Z4 every year or 12,000 miles. DriveWire Has all name brand BMW Z4 Air filters at Discount Prices.
If your BMW Z4 Air Flow Meter keeps failing the issue is most likely to much oil on a BMW performance air filter, or to much blow by from the Z4 engine.
If the BMW Z4 trottle body or the trottle body switch has failed, DriveWire has both the OEM replacement and the BMW Z4 Performance throttle bodies at discount prices.