In this issue:

Electrical Basics, Part 2

What Georg Ohm saw, how to apply it, circuits and voltage drop.

Finding Leaks

Dyes, electrons, and smoke will upgrade your leak detection skills.

Putting Air on the Scale

The MAF “weighs in” as an important sensor for engine performance. Confused about Mode $06 diagnostics? It’s no wonder.

Sprechen Sie Deutsch?

Knowing a little German goes a long way when servicing Mercedes-Benz vehicles.

Factory Service Bulletins: Rear Axle Noise; Rough Idle, Code P201 A/B; Power Outlet Failure

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.