Category: Technical & How-Tos

How To Replace Fuel Filter (BRM/CBEA/CJAA)

In this how-to we’ll help you identify what fuel filter your A5 uses, and guide you through the filter change.


Cabin Filter Replacement – Jetta & Golf

All the air that comes into your TDI (when the windows are up) comes through the cabin filter. Lots of air goes through the filter each day for months or years at a time. Although it does its best to filter out pollen, dirt, debris, bits of trees, and rodents, it gets tired. Although the ...

Replacing the Air Filter in A4 Jetta/Golf TDI

Replacing the Air Filter is part of VW TDI 20K maintenance. It needs to be replaced for one simple reason – your TDI needs clean air. And on turbocharged engines, air filtration is particularly important as debris can damage or destroy your turbo. The air filters on VW TDIs are scheduled for replacement every 20,000 ...

Replacing the Fuel Filter on an A4 Jetta/Golf TDI

Replacing the Fuel Filter is part of Part of VW TDI 20K maintenance. Part of what makes TDIs so efficient is its high pressure injection system. But this system requires excellent quality fuel for both economy and longevity. The fuel filter is the critical element in protecting your fuel system and getting the economy you ...


Adjusting ALH Injection Pump Timing

In this video we will watch Corey from as he adjusts the injection pump timing on a 2003 Jetta TDI with engine code ALH.  He will overview both the mechanical adjustment and show the TDI Timing Graph feature of VCDS.

MkV Jetta TDI Clutch Change Tip

The 2005-2006 A5 or MkV Jetta TDI is reaching the age where many cars need new clutches. Since the 5 speed transmission in the A5 Jetta TDI is very similar to that in the previous generation there are a wide variety of clutch options. However, a new twist appeared in the MkV Jettas. The MkV ...

Determining Head Gasket Hole Size on your TDI

The only way to find out which head gasket your car needs is to look at the one on your car.  Finding out which one you need is really fast and easy if you know what to look for.


TDI Turbo Failure Causes – Foreign Object Damage (FOD)

In our first episode of Turbo Failure 101 we went over oil contamination.  In part 2 we will go over another common cause of turbocharger failure – foreign object damage, or FOD. Foreign object contamination is what it sounds like – some object got into the turbocharger. Under normal conditions the turbine wheel will be ...

TDI Turbo Failure 101 – Oil Contamination

The #1 cause of turbocharger failure is due to oil contamination.  What is it and how can you avoid it? The turbochargers used in the Volkswagen TDI engines should last for the majority of the vehicle’s lifetime. There are many causes for premature turbocharger failure and this article will concentrate on one cause we see ...

Brake Rotor Basics

On modern VWs, whenever you replace your brake pads, you should also replace your brake rotors. This is because brake rotors become scored from use, and a pad might not seat correctly on a worn rotor. Below we highlight a few key characteristics of brake rotors and show you what to look for when buying.