Fix Leaking Diesel Fuel Lines

Are the fuel lines around your fuel filter leaking? Read more for signs of trouble and replacement options.

4 Great Sites for Mercedes Diesel Enthusiasts

4 excellent websites for the Mercedes Diesel connoisseur.

All OM642 Service Manuals

Since 2007, the OM642 motor has been Mercedes's standby diesel engine. Here is a list of basic service intervals for this engine across models and a good guideline for service. 

Automatic Transmission Fluid FAQs

We answer frequently asked questions about automatic transmission fluid, like, when does it need to be changed in my VW?
Finding the right ATF for your Mercedes Transmission can be difficult, and customers often have questions. We’ve created an easy-to-read table to make finding the correct ATF for your Mercedes easy.

Biodiesel: A guide

Are you wondering about trying biodiesel in your vehicle? If so, this guide can help.

Brake Fluid Change with Motive Power Bleeder

Changing your brake fluid is a regularly scheduled maintenance item and can improve braking efficiency and keep your brakes functioning smoothly.

Brake Pads Explained

Shopping for brake pads means having to weigh many different characteristics—noise, price, dust, performance, life—against one another to choose a pad that’s right for your driving style and requirements. Most often, this boils down to choosing a brake pad made from the material you like at the right price. In this article, we’ll explain the basics of brake pads so you can understand what to look for next time you replace your brakes.

Brake Rotor Basics


Chevy Colorado 2.8L Oil Change How-to

Here is a how-to on replacing the oil filter on 2016+ Chevy Colorado diesels.

Chevy Colorado Diesel Fuel Filter Change

This is a how-to on replacing the fuel filters on a 2016 Chevy Colorado diesel with the 2.8L Duramax engine. This should be done every 22,500 miles (or when your vehicle indicates it’s time on the fuel filter counter).

Chevy Colorado Diesel Water in Fuel Drainage

Removing water from the fuel in your truck is important to maintaining engine health--water in the fuel can severely damage components of your injection system. Water in your fuel tank can also provide an environment for fungi and bacteria to grow, which can corrode fuel lines and rubber components. If the water in the fuel light comes on, you should change your fuel filter immediately. We recommend emptying the water from your fuel system about every 5,000 miles. The procedure is detailed below.

Chevy Cruze Diesel Approved Oil List

Chevy Cruze Diesels, like all other modern diesel cars, require specific engine oil to continue to function properly. Specifically, they need a low SAPS oil, or an oil that is low in sulphated ash, phosphorus and sulphur. For cars with a diesel particulate filter, oils with high amounts of additives can block the DPF.

Chevy Cruze Diesel Oil Change How-to

A tutorial on changing the oil in your 2014-2015 Chevy Cruze diesel.

Choosing Flywheel Weight on a TDI

When converting to a single-mass flywheel you can choose between 22lb, 17lb or 14lb weight flywheels.  Which one is right for you?

Clean Diesel Exhaust Systems and Dieselgate

How the exhaust systems on 2.0L TDI “Clean Diesels” work, and why they matter if you want to understand “Dieselgate” and how VW cheated emissions testing.

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.

Colorado Diesel Maintenance Schedule

Here is the maintenance schedule for the 2016+ Chevy Colorado diesel with the 2.8L Duramax engine! Click on the title of the article to see a larger view of the maintenance schedules.

Determining Head Gasket Hole Size

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.

Dual-Mass Flywheel vs Single-Mass Flywheel Clutches

Do you need a new clutch for your TDI?  In this article we outline and compare differences between flywheel options so you can make an informed decision for your car.

Flaps and Fault Codes

Customers often call us with questions about these three common fault codes for their newer TDIs. This article details what each code means and what needs to be done to fix the problem.

Fluid Capacities: All TDIs 1999-2006

***All fuel tank sizes are without "ventectomy", which usually adds two or three gallons.

Fluid Capacities: All TDIs 2009-2015

Below is an article with all the fluid capacities for TDIs from 2009 to 2015.

Fuel Additives: does your TDI need them?

Are diesel fuel additives necessary?

How to Tell If Your Turbocharger Has Failed

We often hear from customers who call saying their turbocharger has failed because it "isn't creating boost" or "isn't boosting" etc. In response, we have created these rules of turbocharger failure.  

How To: IDParts Upgraded Upper Intercooler Pipes

The Upgraded Upper Intercooler Pipe set from IDParts can be confusing to put together. It will "fit" a few different ways, but the correct assembly will ensure proper fit without interference and minimize the chances that your upgraded TDI will suffer boost leaks. In this article we'll show you how to put it together the right way.

How-to: Installing a 6 Speed Short Shifter

The six speed short shifter we sell on the site gives you exactly what the title suggests: a shorter, tighter shift throw, which allows you to shift gears more quickly and easily. Some customers had questions about how to install the new shifter. Luckily, installation is very easy if you know a few tricks. We’ve included step-by-step instructions below to help. This install is basically the same on all Mk. V and Mk. VI platform VW Golf, Jetta, and GTIs.

Known to Fail on the B4 Passat TDI

Below is a list of parts that routinely fail on the 1996/1997 B4 Passat TDI, and where to find replacements. It should be mentioned that any  B4 nowadays has probably had many wear items replaced aside from the normal maintenance items: hoses, lines, suspension components, engine mounts...and anything else that has happened to go the way of the dinosaur in the nearly 20 years since this car's inception.

Koni Dampers

Everything you ever wanted to know about Koni Shock and Struts.

Lifting Your TDI

This is a list of general guidelines to follow and individual spring substitutions to make if you’d like to lift your TDI.

List of Mercedes 229.51 Approved Oil


List of VW 505.01 Approved Oil

Below is a current list of VW 505.01 approved oils available on our site.

List of VW 507 Approved Oil

Current list of VW 507 Approved Oils available on our site.

Lowering your TDI: Dos and Donts

Want to lower your vehicle? There are a few things you should know first.

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.

Power Upgrades for your 2.0L Common Rail TDI

Power upgrades are more difficult to come by for the newer TDIs (2009+). Upgraded injectors are rare, and turbo upgrade options are limited. This article lists some things you can do to give your TDI a little more oomph.

RAM 1500 Ecodiesel Approved Oils

This summer, Dodge changed the oil specifications for the Ram 1500 Ecodiesel. While we're not sure of the exact reason for the change--it could have to do with more frequent DPF regeneration--all oils must fit the following specs:

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 miles.

Replacing the Cabin Filter on A4 Jetta/Golf TDI

It's easy! And you'll breath clean air!

Replacing the Fuel Filter (A5 BRM & CBEA)

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

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.

SBC Stage 2 Daily & Endurance Clutches Compared

 VW clutches are pretty durable, but the dual-mass flywheel (DMF) that VW uses in most cars have a finite life, usually 200K miles or less. And if the clutch on your TDI has failed, you might find yourself considering buying either a South Bend Stage 2 Daily or a South Bend Stage 2 Endurance clutch and wondering what the differences are. Both are quality clutches, but they serve different needs, and at different price points.

Sprinter Turbo List

Here's a fitment guide for turbochargers for Sprinter vans from 2001 to today. This includes all makes--from Dodge to Freightliner to Mercedes, they all used the same types of turbos. A note on the part numbers list: it is not complete, and there might be many other part numbers for each of these turbos.

TDI Clutch Failure

Many TDIs are approaching or have already crossed the 150,000 mile, or even 200,000 mile mark.  If yours has a manual transmission, the flywheel and clutch assembly may be on their way out. Clutch life is highly variable, depending on driving conditions, and more importantly, driving style. Some clutches don’t last 100K miles. Is your clutch close to failing?

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.

TDI Fuel Injection Systems: Rotary, PD, and Common-Rail

 This article explains the differences between the three different fuel injection systems in TDIs available in North America and how they function.

TDI Intercooler Icing Problem

The new common-rail TDI models do great in cold weather outside of one potentially serious problem - intercooler icing.  Ice in the intercooler blocks airflow and, in the worst cases, can send ice chunks or liquid water into the engine, causing serious internal damage.

TDI Mileage over the Years

TDI mileage has been all over the map in recent years. We pulled together data from all over the diesel world to find out why.

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?

TDI Service Schedules

We've compiled links to service schedules for most TDIs from 1998 to date. These charts are great visualizations of what your car needs and when it needs it.

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


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?
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.

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?”

Turbo Showdown: VNT17 vs KP39

This article outlines the differences between two seemingly similar turbochargers—the Garrett VNT17 and the Borg-Warner KP39--for TDIs made between 2004-2006 with an engine code of BEW (Golf, Jetta, and New Beetle).

Using Scangauge on a Passat TDI

If you own a Scangauge II (SGII for short) and a new 2012+ Passat TDI, this guide will show you how to program your gauge to enable display boost pressure, exhaust gas temperature and CAT temperature.

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.
Ever hear your car make a little extra noise at idle? Or have you ever noticed a slight RPM increase and wondered what was happening? Your car is probably doing a Diesel Particulate Filter Regeneration, or DPF regen for short. This is a process that goes on “behind the scenes”, so to speak, with no warning light or indication unless the filter is very clogged, and you might be interested to find out what’s happening.