Publications

di-AGNOSTIC Volvos: an Agnostic Viewpoint to Gather Diagnostic Information

Approaching automotive diagnostics from an agnostic viewpoint allows a technician to gather evidence without bias toward a specific answer. The word agnostic is usually reserved for discussions of religion and the hereafter, but it has a broader meaning of not knowing...

Identity Verification for Mercedes-Benz XENTRY Diagnosis, Programming and Theft Relevant Parts

There have been big changes in the processes; here’s what you need to know! ...we will discuss the TRP policy and procedures, followed by what is likely somewhat new to you, the account verification system. As the title suggests, there are two separate processes for...

Replacing the Air Conditioning Evaporator in the 2006 Volvo V70

This is not an easy job but it can be rewarding for both the technician and the customer. Replacing the air conditioning evaporator on a 2006 Volvo V70 is a huge job, needless to say. The complete dash and heater box will need to be removed from the vehicle. You have...

Addressing Some Common Codes and Complaints With the Mercedes-Benz M274 Turbocharger Engine

There was a time when superchargers and turbochargers were pretty much limited to race cars and certain high performance applications. Now, with the newer technology and the global drive for fuel efficiency and more power, turbochargers seem to be found on almost...
Narrowing the Range of Temperatures with the E-Thermostat

Narrowing the Range of Temperatures with the E-Thermostat

In order to maintain emissions compliance, Mercedes-Benz engineers have to control the temperature range the engine will operate in and develop engine management parameters within this range. This may sound simple enough, but how do you accomplish this when the car might sit for an hour of traffic on a hot summer day, or cruise at highway speeds in the dead of winter?

Boosting Horsepower with a Turbocharger, Part 1

Boosting Horsepower with a Turbocharger, Part 1

What a concept!  The idea may be a century old, but it can still make a small engine put out like a big one. This two-part series will prepare you for high-performance modifications with information on operating principles, design fundamentals, diagnostic info, and replacement and upgrade alternatives.

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