Quote:
Originally Posted by KL 14MILE
I have a 2013 Activehybrid 5/535i RWD with roughly 87,000 miles. Recent trip to the dealer for a "Drivetrain Malfunction" message resulted in them telling me that the code reads "CATALYTIC CONVERTER CODE S BELOW EFFICIENCY."
Dealer said I need new catalytic converters and priced it around $2300! Here are my questions:
1) How many cats does the n55 535i actually have?, from N55 manual and looking under car it appears to be only 1 cat
2) Could this just be an o2 sensor issue?
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U can also buy used Cat on ebay. Ive seen some for the F10 at $350. Just buy one with low miles. Or u can buy from RealOemParts.com brand new oem for about $1200. Many many options...depends how much u wanna spend