Trouble code d9 came up on my 01 BMW 330 ci what is this code

IN THE VIN # OR ON THE DRIVERS SIDE, DOOR JAMB THE MANUFACTURERS PLATE

there are two adjuser on the headlight unit

Please see my tip at http://www.fixya.com/cars/r5821173-doesnt_car_start_gasoline_engines and let me know if you have questions.

There is no reset process, but the fluid may become aerated (foamy)when you start vehicle. The real issue is that the fluid leaked out, and that needs to be addressed.

Just a thought, behind the front bumper are the securing hardware. Bumper needs to be removed so you can access the fasteners.

it is likely hooking on somthing or you forgot to remove the drive shaft

Hello! The replacement of airflow sensor is simple on this model and requires no special procedure. Good luck and i hope i answered your question satisfaction!

Had the same problem with my '03 330xi. Navigation worked fine but radio and CD did not work at all. I opened the fuse box located in the glove compartment to check the three fuses associated with the navigation system and radio. #7, #39, and #41. All three fuses were intact so I put them back in. I then put the key into the ignition, turned it to position 2 and miraculously the radio came to life. I guess it acted as some type of reset?

The fan may have a separate control module which is going faulty. I would let a dealer diagnose it for you (fix a price with them first) and if you repair turns out to be simple carry it out yourself to save on cash.