1999.5 – 2005 Volkswagen Golf/GTI 2.0L 4 Cyl. Cold Air System Installation
Installing the AEM Cold Air System
a) When installing the AEM intake, DO NOT completely tighten the hose clamps, MAF sensor assembly or the mounting tab hardware until instructed to do so later in these instructions.
b) Install the rubber mount in the outermost (towards driver’s side of vehicle) hole to the rear of the large opening behind the headlight. Insert the rubber mount from below (Fig. 16) and secure it with a large fender washer and lock nut from the top. (Fig. 17)
c) Place a large fender washer on the stud that originally secured the lower intake tube in place. (Fig. 18)
d) Re-install the MAF sensor into the plastic intake hose, rotating the electrical connector to the original position. Use the original spring hose clamp. Note: it is possible to install the MAF sensor backwards. DO NOT INSTALL BACKWARDS. Make sure that the end with the flange (originally in the airbox) is still facing away from the throttle body. If you are still unsure, there is an arrow with the word “flow” molded into the MAF sensor body. (Fig. 19)
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