Control Units Go Back to School

Control Units Go Back to School

Installing a new control unit to replace the failed one is only half the job. With various combinations of options available on the same model, the new unit has to learn which are installed and how to work with them.

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Can We Get on the Bus?

Can We Get on the Bus?

Since the early ‘90s, Mercedes-Benz has developed its Controller Area Network (CAN) to control how components communicate with each other and with us through our Compact III or Basic. How has this evolved, and what does it mean to diagnosis and repair?

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Eye on Emissions, P0400 And Beyond

Eye on Emissions, P0400 And Beyond

Automobile emissions are a hot topic among environmentalists, drivers and technicians. Mercedes-Benz vehicles utilize emissions systems, such as Exhaust Gas Recirculation, to reduce harmful pollutants.

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Cushioning the Blow, Part 2

Cushioning the Blow, Part 2

In the last issue of StarTuned we introduced basic air bag maintenance and repair and as promised, here is part two of Cushioning the Blow. ­­Now we’ll take a look at the Emergency Tensioning Device (ETD), further testing and checklists.

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Smooth Shifting

Smooth Shifting

One of the benefits of owning a Mercedes-Benz is a seamless transfer of power from the engine to the road. To add to the experience adaptive transmission shifting tailors the vehicle to the driver. Let’s see how Mercedes-Benz manages these two feats.

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Cooling System Service

Cooling System Service

Summer is almost upon us, and with the warmer weather come customers hot under the collar about air conditioning performance.

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The Key is That You Don’t Need One

The Key is That You Don’t Need One

DAS and “Keyless Go” are technological features that make life easier as well as increasing the security of Mercedes-Benz vehicles. It is a continuing evolution of various convenience systems. Knowing how these systems work will make diagnosing problems a profitable experience.

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Factory Service Bulletins

Factory Service Bulletins

These suggestions and solutions for technical problems are from service bulletins and other information published by Mercedes-Benz, selected and adapted for independent repair shops.

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