Author Archive: StarTuned

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Shake Down Driveline Vibration

Shake Down Driveline Vibration

While tracking down the source of bad vibes may not make you a lot of money, it sure can make you a hero to your customers.

March 2015 | By | Reply More
Get Ready for Aluminum and Ultra-High-Strength Steel: Mercedes-Benz 2015 C-Class and GLA-Class

Get Ready for Aluminum and Ultra-High-Strength Steel: Mercedes-Benz 2015 C-Class and GLA-Class

It boils down to getting three things: application-specific repair information, proper tools, and a little practice with working aluminum alloys or using new welding equipment on the various grades of high strength steel.

January 2015 | By | Reply More
Pulse Width Modulation: Change is Inevitable

Pulse Width Modulation: Change is Inevitable

You’ve been dealing with this concept ever since EFI became popular, but now applications are seemingly everywhere.

January 2015 | By | Reply More
Fuel Trim: Adapting to the Unknown

Fuel Trim: Adapting to the Unknown

The concept has been around for decades, but many technicians still don’t get it. This clear explanation should help.

January 2015 | By | Reply More
Electronic Stability Control: It All Starts with an Idea

Electronic Stability Control: It All Starts with an Idea

The way it works can seem pretty miraculous. Understanding it doesn’t require divine inspiration, however.

January 2015 | By | Reply More
StarTuned October 2014

StarTuned October 2014

In this issue: Always Spinning: Variable Displacement A/C Compressors; Be a Door Man; Installing Custom Aftermarket Wheels & Tires; Variable Length Intake Manifold Operation & Maintenance

October 2014 | By | Reply More
Installing Custom Aftermarket Wheels and Tires

Installing Custom Aftermarket Wheels and Tires

It’s a good bet that some of your customers consider their Mercedes-Benz vehicles a fashion statement. Maybe they’re wild about some particular wheel and tire combination that’s impractical, maybe even unsafe. What do you do?

October 2014 | By | Reply More
Variable Length Intake Manifold Operation and Maintenance

Variable Length Intake Manifold Operation and Maintenance

For most of automotive history, the intake manifold was just an inactive lump of iron or aluminum. Not anymore.

October 2014 | By | Reply More
Be a Door Man

Be a Door Man

Sensors, actuators, and electronic controls make repairing Mercedes-Benz doors a lot more important to vehicle safety and passenger comfort than in the past. The collision repair technician must deliver not only excellent fit and finish, but also ensure that all electronics function as required by the original equipment specifications.

October 2014 | By | Reply More
Variable Displacement A/C Compressors: Always Spinning

Variable Displacement A/C Compressors: Always Spinning

Only after ruling out non-compressor problems can you begin testing the variable displacement compressor itself. Does the swash plate respond to different loads? If not, is it a problem with the compressor, sensor inputs, or with the controller?

October 2014 | By | Reply More