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      06-17-2015, 02:21 PM   #1
talhagursoy
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Question Catalytic- converter conversion

Hope you guys doing well,

2 days ago CEL came on and I replaced my spark plugs. Today CEL lights came on back and I just read the codes it says "Catalytic- converter conversion" and "Catalytic- converter conversion 2" numbers "29F4, 29F5" I took my car to the BMW service when light was gone, they check to car and told me that everything was okay and I just had to update my software. However I do not really think these codes come up because of software update. Does anyone have experience about those codes or those kinds of problems ? My 35i has 33k miles on it.
Thank you!
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      06-23-2015, 03:28 PM   #2
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Don't rule out that a software update could be the true fix. Some years of E46 were overly sensitive to setting catalytic converter efficiency codes and flashing updated software fixed it.
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      07-13-2015, 09:25 PM   #3
talhagursoy
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Quote:
Originally Posted by Tangent View Post
Don't rule out that a software update could be the true fix. Some years of E46 were overly sensitive to setting catalytic converter efficiency codes and flashing updated software fixed it.

After I read your comment, I thought twice and decided going with software update. And It worked, it has been 2 weeks and everything works well. Also car got smoother and steering wheel works better than before. I was surprised what a software could do.
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      05-26-2022, 02:45 AM   #4
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Quote:
Originally Posted by talhagursoy View Post
Quote:
Originally Posted by Tangent View Post
Don't rule out that a software update could be the true fix. Some years of E46 were overly sensitive to setting catalytic converter efficiency codes and flashing updated software fixed it.

After I read your comment, I thought twice and decided going with software update. And It worked, it has been 2 weeks and everything works well. Also car got smoother and steering wheel works better than before. I was surprised what a software could do.
Hi,
Know this is a old thread but…..
Which software needs to be update?
BR
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