Audi TT 1.8t A.W.E. Tuning DV1 Diverter Valve Installation Instructions

With the DV1 Diverter Valve, we believe you have purchased the finest diverter valve for the money. Follow these instructions, and you’ll have your new A.W.E. Tuning DV1 Diverter Valve installed quickly and easily.
Step 1: Here’s an overview picture of the transverse 1.8T engine found in the Audi TT, VW Golf/Jetta/New Beetle 1.8T. The 225hp TT engine looks a little different, but the install of the A.W.E. Tuning valve is the same procedure. For picture clarity, and ease of install, the decorative engine cover has been removed. Removing the cover is easily done by twisting the “+” shaped fasteners on the cover 90 degrees. They’ll pop up when free, allowing you to grab the cover and lift it up and out of the engine bay. (New Beetle requires removing 2 10mm nuts hidden under trim caps, and then sliding forward and out) We’ve also removed the PCV damper in the following pictures for clarity. You won’t need to remove this item to install the valve.
Step 2: On some New Beetles, the stock diverter valve is held in the boost tubes by squeeze clamps. Squeeze the clamp tabs together with a pair of pliers to release the tension on these clamps, while at the same time sliding them down the hose, away from the valve. On the TT, Golf, Jetta and some New Beetles, the stock diverter valve is held in the boost hoses by one “crimp” clamp and one reusable screw clamp (pictured). Some vehicles actually have crimp clamps at both locations.Removing the crimp clamp is probably the toughest part of the valve in- stall! You can either try to pop this clamp apart where it overlaps with a thin flat head screwdriver, or you can simply cut it with a nice pair of tin snips. Have patience.
Step 3: Next, remove the vacuum hose that attaches to the top of the stock valve. This is easily done by grabbing the hose near the valve body and wiggling it off, with the clamp intact. Once the hose is wiggled free, slip the small crimp clamp off and discard. You’ll be using the small screw clamp supplied with the A.W.E. Tuning valve during install.
Step 4: Once you have removed the large crimp clamp and the vacuum hose, you can loosen the screw clamp at the base of the valve with a flat head screw driver, or if equipped with a crimp type clamp repeat Step 2.
Step 5: Now you are ready to remove the stock DV. Just wiggle it free from the boost hoses. Slipping a flat head screwdriver between the hose ends and valve body can help free a stubborn valve. While the valve is out of the boost hoses, make sure no foreign objects fall into the hose holes.
Step 6: Time to install your new A.W.E. Tuning DV1 Diverter Valve
Before installing the valve, slip the 20-32mm hose clamps supplied with the valve over the boost hose ends. Slip the valve into the boost hoses and snug the hose clamps down with the flat head screwdriver. Give them a good twist to make sure they are nice and tight.
On the New Beetle, replace the original vacuum hose with the enclosed longer hose. Slip the 10-16mm hose clamp supplied with the A.W.E. Tuning valve over the end of the vacuum hose. Push the vacuum hose onto the small barbed fitting on the valve, and snug down the clamp.

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