Stevo-M 0 Posted May 21, 2009 Anyone know what this is, lambda sensor maybe? It's just a blocked off rubber hose attatched to a thin metal tube, that seems to go onto the exhaust downpipe. :shrug: :confused4: Quote Share this post Link to post Share on other sites
krnau 0 Posted May 21, 2009 www.vagcat.com has loads of pictures of vaccum pipes. have a look :) Quote Share this post Link to post Share on other sites
Roger Blassberg 0 Posted May 22, 2009 Exhaust gas analysis sample pipe I would think. I have something similar on ABF engine. Just keep it blocked up, as shown. It does not need to be connected to anything else. Best wishes RB Quote Share this post Link to post Share on other sites
Jim 2 Posted May 22, 2009 Roger Blassberg is right on - it's there to sample exhaust gas pre-catalytic convertor. There is actually a proper rubber bung for it which your car seems to have lost along the way and has been replaced with a DIY job but I'd be surprised if it wasn't still available from VW for a few quid :) Quote Share this post Link to post Share on other sites
Stevo-M 0 Posted May 22, 2009 Cheers guy's, i'll just leave it as is for the time being then :D Quote Share this post Link to post Share on other sites