My316 Posted September 26, 2018 Report Share Posted September 26, 2018 Hi Guys. I got rid of my 4 pot 316 (thank god) and now have a 320 M Sport ( love it). It has an airbag problem. Airbag light comes on when someone sits in the passenger seat. Therefore I presume its the under seat mat sensor. So I've ordered a passenger mat airbag bypass sensor which I've seen on many E46 posts as the possible reason. My question is: does anyone on here have the correct procedure for fitting the airbag passenger mat bypass sensor. I have looked at the videos and Facebook and there are conflicting instructions -- some say no need to disconnect the battery -- others say disconnect battery before fitting. Lastly does anyone on here fitted one of these and were there any side effects for example causing cruise control to come on or seat belt light constantly on. Sorry for such a long ramble but don't want to create myself more problems. Thanks in advance. Quote Link to comment Share on other sites More sharing options...
berts Posted September 27, 2018 Report Share Posted September 27, 2018 I've never changed one myself but I would say disconnect battery when ever doing anything involving airbag to be on the safe Side . Quote Link to comment Share on other sites More sharing options...
dec74n Posted September 28, 2018 Report Share Posted September 28, 2018 I fitted one, no issues at all but I definitely disconnected the battery before fitting, takes minutes to fit , just clamber in the back with a torch and look under the seat, very straight forward.Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
My316 Posted September 29, 2018 Author Report Share Posted September 29, 2018 Thanks for your reply dec74n and info. Will certainly disconnect battery and fit this weekend. Quote Link to comment Share on other sites More sharing options...