Hi, I ordered a new air filter for my 2005 GTI and when I finally got the engine cover off to change it, the new air filter sent to me is the wrong size. I put in my reg number with GSF car parts and thry sent a MANN filter, part no. 1K0129620D. When I google this humber it shows pictures of this filter and says it will fit my car?! Confused! I dont know how to attach a photo on here? But the filter in the car is rectangle with a cut out at the edge and the new one which doesnt fit is rectangular without a cutout and is deeper. Appreciate some advice.