1A Auto Video Library
Our how-to videos have helped repair over 100 million vehicles.

How to Replace Serpentine Belt Tensioner 98-05 Volkswagen Passat

Share on:

How to Replace Serpentine Belt Tensioner 98-05 Volkswagen Passat

Created on: 2012-09-19

Check out this video to learn how to replace the serpentine belt tensioner on your 98-05 Volkswagen Passat 1.8T.

  1. step 1 :Remove the serpentine belt
    • Locate your serpentine belt routing diagram
    • Use a 17 mm wrench on the belt tensioner to loosen the tension from the serpentine belt
    • Remove the serpentine belt.
  2. step 2 :replace the serpentine belt tensioner
    • Use your 13 mm wrench to unbolt the serpentine belt tensioner.
    • Remove the old serpentine belt tensioner.
    • Thread the bolts into the new serpentine belt tensioner.
    • Install the new serpentine belt tensioner and tighten up the 13 mm bolts to 5 ft lbs.
  3. step 3 :Install the serpentine belt
    • Locate your routing diagram.
    • Loop the belt around the pulleys.
    • Release the tension from the belt tensioner with your 17 mm wrench to loop the belt over the last pulley.
    • Tighten up the serpentine belt.

Tools needed for replacement

  • Wrenches - Metric

    17mm Wrench

    13mm Wrench

Installation Video
Watch video

Brought to you by, your source for quality replacement parts and the best service on the Internet. 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 In this video, we'll show you how to replace a serpentine belt tensioner on this 2003 Volkswagen Passat and this vehicle has the 1.8 liter T motor, it has a turbo motor. The only tools you'll need are a 17 millimeter wrench and a 13 millimeter wrench. In this video we just showed you replacing the tensioner itself.

If you wanted to replace the belt at the same time which is usually a good thing to do, you can check out our other videos and you'll see a video for replacing the serpentine belt on this vehicle as well. The tensioner for your alternator belt is right up here, 17 millimeter wrench, put it on there and pull on the tensioner and flip the belt off and let the tensioner back. There are three 13 millimeter bolts here. My 13 millimeter wrench on there. Here's my 17 millimeter giving me a little extra leverage. We'll just loosen that off. I'm just going to speed it up as I loosen the third one up. Then, these bolts actually pretty easily come up by hand and so that's basically what I'm doing here is once I have them loosen up just backing them out by hand. This one goes off and tensioner comes up right up and out.

New tensioner from 1A Auto. This is a great one. What I'm going to do is put these bolts into place. This makes it a little easier to get it down on there. Put the tensioner down into place here. That top bolt going in. I have two bolts going in and hand thread it in. Once again, I'll turn on the speed here as I thread those bolts in and then pull them narrowly, tighten them up with the wrench. I'm going to tighten them up. Just use your wrench. It should probably be about three, three to five pounds but we're going to tighten it with this wrench. This will do the trick. The new tensioner does come with a little stop in it so we'll put our 17 millimeter wrench on there, pull on a little bit and pull that stopper on right out. Then, slowly let back. Now, you can see that belt sticking right up through there. I'm going to grab onto my tensioner, that 17 millimeter. Pull it loose. Pull the belt right up onto the alternator, let the tensioner loose so I can see it now. My bolt actually came off of that power. Reach down there. Is that on there? Let it tight up. Just look down in see down, cranked correctly. The power straightened up correctly. It's maybe a little off here. Push it on the points a little bit more and it's all set.

We hope this helps you out. Brought to you by, your source for quality replacement parts and the best service on the Internet. Please feel free to call us toll free, 888-844-3393. We're the company that shifts you on the Internet and in person.

Tools needed for replacement:

    Wrenches - Metric

  • 17mm Wrench
  • 13mm Wrench

1997 - 2001  Audi  A4
1998 - 2005  Volkswagen  Passat
1997 - 2001  Audi  A4 Quattro

Auto Repair How to CheckAdd Power Steering Fluid to My Car or Truck

Auto Repair How to CheckAdd Power Steering Fluid to My Car or Truck

Watch this video to learn how to check the level of your power steering fluid, and add more if necessary. Some details may differ in your vehicle.

Search Videos
Go To Top

Same Day Shipping

Need your part faster? Choose expedited shipping at checkout.

Guaranteed To Fit

Highest quality, direct fit replacement auto parts enforced to the strictest product standards.

USA Customer Support

Exceeding customers' expectations, our team of passionate auto enthusiasts are here to help.

Instructional Video Library

Thousands of how-to auto repair videos to guide you step-by-step through your repair.