Do I need to programme the computer if I want to replace the Catalytic Converter on my BMW 318Ci?
Dec 8, 2008 at 9:50 AM
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DOCHAGERTY
✓Experienced Mechanic
9,606 POSTS
No, there is no need to re-program for a replacement cat, but you may have faults set and they will need to be addressed as needed by someone with the correct scanning equipment.