On-board computer retrofit for 1999 - 2005 3 series (E46)
Abstract: How to retrofit an on-board computer system to non equipped models
Applies to: BMW 3 Series 1999-2005 - 6 cylinder models (platform: E46)
On-board computer, retrofit
In this article we will replace the standard (w/o on-board computer) directional stalk with an On-board computer stalk and then reprogram the instrument cluster using a factory scan tool to access the on board features.
Please refer to the Bentley E46 Service manual for appropriate repair procedures, including all pertinent warnings and cautions.
remove air bag
Airbags are pyrotechnic explosive devices. Proper removal procedures must be followed when servicing these systems. Use car when working on vehicles fitted with airbags.
remove steering wheel
remove clock spring
remove and replace directional stalk with part #61 31 8 363 668
reinstall in reverse order
enter coding program funtion with GT-1 or equivalent. We will show the procedure with a GT-1.
Following images show each screen shots of retrofit procedure using BMW GT1 scan tool.
Once complete with on-screen direction retrofit is complete.
You should now have option on instrument cluster to view
temperature
MPG
Time
Before Performing any Work
Please read Cautions and Warnings before proceeding with any work on your vehicle