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How to Replace Radiator Overflow Bottle 06-12 Volkswagen GTI

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How to Replace Radiator Overflow Bottle 06-12 Volkswagen GTI

Created on: 2018-05-08

How to repair, install, fix, change or replace a broken, damaged, split or leaking radiator coolant overflow bottle on 06, 07, 08, 09, 10, 11, 12 VW GTI

  1. step 1 :Removing the Overflow Bottle
    • Before beginning, make sure the coolant is cool
    • Remove the 10mm bolt from the washer bottle neck
    • Remove the cover from the overflow bottle
    • Loosen the hose clamp on the hose
    • Pry the hose off with a pick
    • Disconnect the electrical connector
    • Detach the wiring harness from the bottle
    • Remove the two T25 Torx fasteners
    • Apply pliers to the lower hose
    • Remove the lower hose from the reservoir
  2. step 2 :Installing the Overflow Bottle
    • Connect the lower hose to the reservoir
    • Tighten the lower hose clamp
    • Tighten the two T25 Torx fasteners to the bottle
    • Attach the wiring harness to the bottle
    • Connect the electrical connector to the bottle
    • Connect the upper hose
    • Tighten the hose clamp
    • Tighten the 10mm bolt to the washer bottle neck
    • Refill the reservoir with the appropriate coolant
    • Tighten the reservoir bottle cap

Tools needed for replacement

  • General Tools

    Drain Pan

    Pick

  • Materials, Fluids, and Supplies

    Anti-Freeze

  • Pliers, Cutters & misc Wrenches

    Needle nose pliers

  • Ratchets & Related

    Socket Extensions

    Ratchet

  • Screwdrivers & Related

    Flat Blade Screwdriver

  • Sockets - Metric

    10mm Socket

  • Star Drivers & Sockets

    T25 Driver

Installation Video
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Hi, I’m Mike from 1A Auto. We’ve been selling auto parts for over 30 years!

In this video, we are replacing a Radiator Overflow Bottle in a 2010 Volkswagen GTI. If you need this part, or any other part for your vehicle, click the link in the description and that'll bring you over to 1AAuto.com.

This is the coolant reservoir we're going to be removing. We want to start by taking out this 10-millimeter bolt for the washer fluid fill. 10 mill out. Now we're going to pull the washer fill out of the way.

Next we're going to pull off the cap, make sure this is cold, because otherwise you're going to have pressure and it's going to have a lot of coolant come out. We're going to pull this hose off. You need some pliers to take off the clamp. We're going to use a right-angle pick and get in underneath here to break the seals. Sometimes you can just twist the pipe back and forth the hose. We'll go right around, that'll break the seal, and pull right off.

Next we're going to disconnect this connector. You're going to use a small flat-bladed screwdriver, pop it and pull it right out. We're going to pull this wiring harness out of your way. We're going to use a T-25 and an extension and a small ratchet. I'm going to get these two fasteners back here.

Make sure you want to have a drain bucket underneath because you're going to lose a little bit of coolant. Pull this out of the way. We are going to put a hose clamp on here so that we don't lose too much coolant, but there is going to be coolant in the reservoir you're going to lose. Take this clamp off, I'm going to use pliers again. Push down the hose. Grab the hose and pull, twisting. There's our reservoir.

As you can see this is our old one. This is our new coolant reservoir from 1AAuto.com. They look identical. You can see the minimum coolant level specs right there. You can see it comes with a cap. It's the same as the original, they look identical. Coolant level sensor right there, you can see the connectors are the same. All the mounting brackets are all the same. You can order this at 1AAuto.com and be ready to rock and roll.

Hook up the lower pipe to the reservoir. Push it on. Once it's on, we can pull off this clamp, get it out of the way. We can move this hose clamp with a pair of pliers, just get it lined up and squeeze. Get it on there. It's best to try to get it in the same grooves that it was in before, or close. Get this down in here. Install this hose. With the pliers, move this hose clamp. Before we install these wires around here, we're going to install our T-25s. Snug it down. Remember, it's plastic, so you don't want to go too tight.

Install this wiring harness into these clips. Plug in our connector, until it clicks. Install the washer fill to the bracket. You can use a 10-millimeter socket and ratchet.

Now we're going to top off our coolant. You want to make sure you use Volkswagen approved coolant. When doing this, you're going to want to make sure you run your engine for a while before you drive, and recheck the level to make sure it's okay. In theory, there should not be any air in the motor, but just in case, the vehicle burps and we need to add coolant, we should do so. Install our cap, until it clicks.

Thanks for watching. Visit us at 1AAuto.com for quality auto parts, fast and free shipping, and the best customer service in the industry.

Tools needed for replacement:

    General Tools

  • Drain Pan
  • Pick

  • Materials, Fluids, and Supplies

  • Anti-Freeze

  • Pliers, Cutters & misc Wrenches

  • Needle nose pliers

  • Ratchets & Related

  • Socket Extensions
  • Ratchet

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Sockets - Metric

  • 10mm Socket

  • Star Drivers & Sockets

  • T25 Driver

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