TDI Oil Specifications

505.00, 505.01, 507.00 – What do these mean?  10,000 mile oil change interval?  Really?  5W-40, 5W-30, 0W-30, which is better?
 

What TDI do I have?

MkVI, Mark 4, A4, Mk6, NMS....ALH, BEW, BHW, CJAA....OH MY!  The many VW engine and model codes can be confusing.  In this article we'll help you sort through it and determine which model you have.
 

TDI Turbos Demystified

It can start with a screeching sound on acceleration, a “pop” and a cloud of white smoke, or, at its worst, your car accelerating uncontrollably—a runaway. Or your TDI just stops making power. No matter how it happens, your turbo has failed. And the next question is usually, “Should I upgrade?”
 

Automatic Transmission Fluid FAQs

We answer frequently asked questions about automatic transmission fluid, like, when does it need to be changed in my VW?
 

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 want from your TDI.
 

TDI Fuel Injection Cleaning with Diesel Purge

Diesel Purge is a highly efficient fuel injection cleaner for diesel engines. This article is a step-by-step how to on cleaning your injectors with Diesel Purge.
 

List of Mercedes 229.51 Approved Oil

 

Clutch Replacement Options

Once you've figured out that your clutch is kaput (see our article on TDI Clutch Failure) you can determine which clutch you'd like to replace it with.
 

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?
 

TDI Timing Belt Change 101-– What You Need To Know