An injector can cause symptoms ranging from a slight decrease in efficiency and emissions to a total misfire. Here’s how fuel injectors work, how to test them for failure, and some diagnostics that can save time.
Dealing with apparent “belt noise” is often the first step in recognizing that a belt and possibly other system components are worn out, or operating under duress — it might be only a matter of time before a breakdown on the road.
Heat from welding can seriously compromise the strength of the advanced materials used in modern Mercedes-Benz vehicles, so adhesive bonding and riveting have become mandatory skills for collision techs. Cold joining has other advantages, too.
More often than not, tracing parasitic drains can require a substantial amount of detective work. That’s the tough part. Once you’ve identified the source of a key-off current draw, the repair is usually simple.
In 1998, the SLK got a supercharger that provided the “right now” feeling normally associated with larger engines. These and other later models should be showing up in your shop by now, so you’d better know how they work.
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