Replaces

Radiator Overflow Bottle with Cap Dorman 603-253 - DMROB00020

DORMAN RADIATOR OVERFLOW BOTTLE: 603-253

Our coolant bottles are some of the highest quality replacements on the market! This radiator coolant overflow bottle has been designed to replace the original design.

Specifications:

  • Brand New Dorman Radiator Expansion Tank
  • Includes Cap
  • Plastic construction
  • Direct replacement
  • Built to strict quality control standards

Replace your broken or cracked bottle now with this great fitting part.

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser.

  1. step : Removing the Overflow Bottle (0:30)
    • 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 : Installing the Overflow Bottle (3:36)
    • 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

  • Torx Drivers & Sockets

  • T25 Torx Driver

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Vehicle Fit

  • 2006-2013 Audi A3 Radiator Overflow Bottle with Cap Dorman 603-253
  • 2006-2013 Audi A3 Quattro Radiator Overflow Bottle with Cap Dorman 603-253
  • 2006-2013 Audi A3 Quattro Quattro Radiator Overflow Bottle with Cap Dorman 603-253
  • 2008-2009 Audi TT Radiator Overflow Bottle with Cap Dorman 603-253
  • 2008-2009 Audi TT Quattro Radiator Overflow Bottle with Cap Dorman 603-253
  • 2008-2011 Audi TT Quattro Quattro Radiator Overflow Bottle with Cap Dorman 603-253
  • 2012 Audi TT Quattro Quattro Radiator Overflow Bottle with Cap L4 2.0L Dorman 603-253
  • 2012-2017 VW Beetle Radiator Overflow Bottle with Cap Dorman 603-253
  • 2009-2012 VW CC Radiator Overflow Bottle with Cap Dorman 603-253
  • 2007-2012 VW Eos Radiator Overflow Bottle with Cap Dorman 603-253
  • 2006-2012 VW GTI Radiator Overflow Bottle with Cap Dorman 603-253
  • 2010-2012 VW Golf Radiator Overflow Bottle with Cap Dorman 603-253
  • 2005 VW Jetta Radiator Overflow Bottle with Cap (Built After 12/04 Production Date) Dorman 603-253
  • 2006-2018 VW Jetta Radiator Overflow Bottle with Cap Dorman 603-253
  • 2006-2010 2006-10, 2012-18 VW Passat Radiator Overflow Bottle with Cap Dorman 603-253
  • 2012-2018 2006-10, 2012-18 VW Passat Radiator Overflow Bottle with Cap Dorman 603-253
  • 2006-2009 VW Rabbit Radiator Overflow Bottle with Cap Dorman 603-253
  • 2009-2012 VW Tiguan Radiator Overflow Bottle with Cap Dorman 603-253

This part replaces:

  • Dorman 603-253
  • OE # 3B0121321
  • OE # 1K0121407A
Only 2 left in stock
Part #: DMROB00020

Dorman
Brand #: 603-253

How-to Video:

(06:31 min)