The Right Stuff: Identifying the Correct Mercedes-Benz Service Fluid

One of the more challenging tasks in this business is identifying the correct service fluid for a vehicle system. Some fluids, such as engine oil,...

Mercedes-Benz Automatic Transmission Perfection

Get ahead of shifting complaints The modern day Mercedes-Benz automatic transmission is a complex, efficiently-engineered marvel with a harmonious...

Volvo MOST Networks and Infotainment Systems Problems and Solutions

Does the word “Infotainment” make you cringe? Well you’re not alone. A lot of technicians are nervous about working on these systems, but they're...

Classics: Model 210 A/C Diagnosis Accessing Self-Diagnosis and What the Numbers Mean

Anyone working on Mercedes-Benz cars will recognize the 1996-2002 Model 210 E-Class as a true classic, with millions produced worldwide and many...

Understanding Mitsubishi LIN Circuits

A clear wiring schematic is your best friend when tracking down LIN faults Old school versus new school The quote from Aristotle serves as a...

The Case of the Reluctant Titan

It appeared to be a textbook case of strangulation. But not so fast….. Harry looked up from the morning paper as a new case file slid across his...

Mercedes-Benz Spark Plug Procedures and Precautions

This essential component was invented about 160 years ago, but is still evolving in terms of design, materials, and service. Ah, the lowly humble...

Mercedes-Benz PRE-SAFE System Evolution

Technology Advancements and Avoiding Service Snafus The Mercedes-Benz PRE-SAFE system was originally conceived as an engineering concept for a...

A Look Inside Volvo Turbo Technology

A Little History Volvo turbo The exhaust-driven turbocharger was invented back in 1905 by Swiss engineer Dr. Alfred Büchi in Germany. And the first...

The Mercedes-Benz Certified Collision Program, Part 2 – Taking your collision business to the next level

We discuss the three tiers of certification: What they mean, what kinds of vehicles are included, the requirements, and how to get started.

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When is a vacuum leak not a vacuum leak?

When it’s hiding in the EVAP system of a Porsche Cayenne.

A P0455 code points to an EVAP problem, but the EVAP system checks out OK with our smoke tester. And the purge valve checks out as well. So where could the problem lie?

Our derFix Super Sleuths unravel the mystery.

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