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How to Replace PCV Valve 2004-09 Audi A4

Created on: 2016-06-21

How to replace a worn or leaking positive crank case ventilation valve on the 07 Audi A4.

  1. step 1 :Removing the PCV Valve
    • Remove the engine cover
    • Remove the upper hose on the PCV valve
    • Push the lower clamp off of the valve
    • Make sure the hose is disconnected
    • Remove the four T25 Torx screws
    • Pull out on the housing as you unbolt it
    • Angle up the housing so you don't lose the screw
    • Pry off the old gasket with a pick
  2. step 2 :Installing the PCV Valve
    • Insert the new gasket into the valve cover
    • Insert the PCV valve housing into place
    • Tighten the T25 screws into the PCV valve
    • Insert the lower PCV line into the housing
    • Insert the upper PCV line into the housing
    • Reinstall the engine cover

Tools needed

  • T25 Torx Driver

    Pick

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Hi, I'm Mike from 1A Auto. I hope this how-to video helps you out, and next time you need parts for your vehicle, think of 1AAuto.com. Thanks.

In this video, we are going to show you how to replace the PCV valve in this two thousand seven Audi A4. This one has the two point zero turbo engine in it. All you'll need for tools is the T25 Torx driver and a hooked pick.

Remove the engine cover.

Locate the PCV on the rear driver's side of the valve cover. Remove the upper hose on the PCV valve by pinching together the tabs, carefully working it off of its lines. Work the lower clamp off of the PCV valve. Just make sure it's disconnected, you don't really have enough room to set it off to the side in any way.

Remove the four T25 Torx screws with the T25 spit socket, or screwdriver. Where it's difficult to reach down and hold the last screw with your finger simply pull out on the housing as you unbolt it. Angle up the housing and make sure that the screw stays in there. Using a small pick, remove the old gasket from the slots on the side of the valve cover.

Install the new gasket into the valve cover. Be sure that it's fully seated, lined up properly. You don't want any slack in there, or any parts that aren't seated fully into the valve cover gasket where they could pinch, get locked in there crooked when we install the new PCV valve.

Bottom bolt here, next to that lower breather line, going to go ahead and rest that in there. Carefully lower the PCV valve housing back into place. Line it up and tighten it down.

Reinstall the remaining three screws. You may have to move this lower PCV line to get to the top right. Snap the lower breather line back into place.

Reinstall the upper PCV line until they snap into place.

Reinstall your engine cover.

Thanks for tuning in. We hope this video helped you out. Next time you need parts for your car, please visit 1AAuto.com. Also check out our other helpful how-to and diagnosis videos.


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