SRBMW 6 Report post Posted January 12, 2011 Have two brand new Bosch Oxy sensors to suit 540i e34 11-78-1-702-931-m14 13231/14 20610B15 Has a 4 pin plug with the bmw black screw on fitting these were different to what was on my mates 540i so they are surplus to requirements. $350 for the pair. Cheers Darren 0211645663 Quote Share this post Link to post Share on other sites