How To Replace Heater Core 2012-2015 Volkswagen Passat Heater Core (SAVE MONEY DIY!)

If your 2012–2015 Volkswagen Passat has no heat, foggy windows, or weak cabin heat, the heater core may be clogged or failing. In this video, I show you step-by-step how to replace the heater core on a VW Passat, saving hundreds compared to dealership repair costs.

This DIY tutorial covers heater core removal, installation, and common symptoms, including poor heat output and coolant flow issues. Whether you’re dealing with cold air blowing from vents or inconsistent cabin heat, this guide will help you get your Passat warm again.

Fast forward and rewind here to learn

00:00:00 Introduction
00:00:22 Drain Coolant
00:04:27 Remove Air Intake Assembly
00:04:46 Remove heater core hoses to firewall
00:09:27 Blowing excess coolant out of heater core
00:10:08 Reattach lower radiator hose
00:11:53 Remove steering column trim
00:16:04 Remove heater core
00:20:34 Prep and install new heater core
00:28:58 Reconnect heater core hoses
00:30:23 Reconnect air intake pipe
00:33:55 Reinstall trim pieces

Applies to:

2012 Volkswagen Passat
2013 Volkswagen Passat
2014 Volkswagen Passat
2015 Volkswagen Passat

🔧 Common Symptoms Covered:

No heat or weak heat
Clogged heater core
Foggy windows
Cold air from vents
Coolant flow problems

👍 If this video helps, like, comment, and subscribe for more VW Passat DIY repairs and money-saving automotive tutorials.

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