baff 10 Posted March 18, 2019 Hi guys! I was looking for some vacuum leaks yesterday and discovered that my airbox was missing a hose or a cap. Looking thru a diagram there should have been a cap here: [ATTACH=CONFIG]96552[/ATTACH] On my airbox is just a hole Could this be the cause of my vacuum leak? Tanks! Quote Share this post Link to post Share on other sites
vw rule 19 Posted March 19, 2019 (edited) Part number like you say is 027 133 993 Diameter is 29mm Height / depth is 8mm £0.89 euros In stock at VW Classic Parts in Germany but your best bet is speak to the sales team at VW Heritage, as they can tell you more info about it, the only thing is postage isn't cheap from Germany. Also this item is available on Ebay (Ebay item number 303074152642) This seller only has one in stock, he is based in Greece. Postage is roughly £7 so might be worth purchasing a few items to make it worth while. I have bought from this seller and he is very trust worthy and honest. Looks like the item is a core plug type of thing covered in a thin layer of rubber. Note! If I were you I'd seal the hole first with your finger, to see if it makes any difference to how the engine is running. Ideally you probably should have that plug thing attached, but like I say I'd try to seal it first with your finger to see if it makes any difference, or use an old large towel to seal it. Can you hear the air being sucked through that hole, or feel it with your finger ?? Si Edited March 19, 2019 by vw rule Quote Share this post Link to post Share on other sites
Geeba 0 Posted March 19, 2019 Another amazing post Simon... My car is a little off track... any chance you can do me a project plan and a list of part numbers, availability, best source and reassembly procedure? :D :D Quote Share this post Link to post Share on other sites
