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      11-20-2012, 03:18 AM   #8
Johnny D
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Drives: 2006 BMW 325i
Join Date: Apr 2011
Location: Hot Springs, AR

iTrader: (4)

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2006 BMW 325i  [4.58]
Originally Posted by mapleridge View Post

Set aside a decent amount of time. You may have done this before but here are the instructions per Bentley
  • Remove Cabin Air Filter
  • Remove Cowl
  • Remove Brackets holding wiring to the cowl
  • Remove Valve Cover
  • Unbolt Coolant Reservoir and Remove Sensor Beneath it. Push to the side.
  • Undo lower underbody panel. - Great to have removed in case you drop screws
  • Remove Exhaust system - you can get away with leaving it on

You want a swivel joint on your socket at times and some deep sockets. You will need a small extensions as well. Some o2 sensors you can unscrew while others it is best to just unplug.

If you are using a bms downpipe fix, read the instructions carefully on where they suggest the setting to be. You can read it wrong and set it too low. You will get a CEL like I did.
Thanks for the heads up. I had planned on everything but the valve cover. It should not be needed. I may go ahead and remove the motor mount to make the job go quicker.