Hi,
First proper post on here in a few years since my last 35i and good to be back.
I recently picked up a 2010 35i and within a few weeks the engine light came up, the car drives fine for all intents and purposes although the idle is a little rough (a passenger wouldn't notice but I certainly do). I took it to Burch Automotive, a well known BMW specialist in my area and it has thrown a 29F5 (Bank 2 Cat below efficiency). The garage believes it probably actually is the Cat although I'm led to believe that lots and lots of other things can trigger this code and it is a bit of a mine field.
A replacement cat is £530 from BMW plus fitting, I may be able to get it cheaper through a friend in the motor trade. This had me looking at AR downpipes as I was going to JB4 the car anyway - does anyone have any experience of them specifically in a Z4 and if so where did you buy them from? From an emissions point of view is it still able to pass an MOT on the rear cats alone?
First proper post on here in a few years since my last 35i and good to be back.
I recently picked up a 2010 35i and within a few weeks the engine light came up, the car drives fine for all intents and purposes although the idle is a little rough (a passenger wouldn't notice but I certainly do). I took it to Burch Automotive, a well known BMW specialist in my area and it has thrown a 29F5 (Bank 2 Cat below efficiency). The garage believes it probably actually is the Cat although I'm led to believe that lots and lots of other things can trigger this code and it is a bit of a mine field.
A replacement cat is £530 from BMW plus fitting, I may be able to get it cheaper through a friend in the motor trade. This had me looking at AR downpipes as I was going to JB4 the car anyway - does anyone have any experience of them specifically in a Z4 and if so where did you buy them from? From an emissions point of view is it still able to pass an MOT on the rear cats alone?
