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.
A major hybrid automobile and truck innovator just after the turn of the 20th Century, Mercedes-Benz has engineered advanced versions of the concept that are not only highly economical, but also have a big “Wow” factor.
If the PCV (Positive Crankcase Ventilation isn’t working correctly, it can cause problems that range from poor idle quality and serious oil leaks to sludging and internal engine damage from oil contamination. Every piston engine no matter how well designed and assembled has a certain amount of blow-by past the rings, and if it can’t get out of the crankcase pressure will build up and water vapor, excess gasoline, and combustion contaminants will collect in and dilute the motor oil.
Misfires, knocking, volatility problems and other issues can occur due to lack of adequate fuel quality controls. RFG quality variations can result in different engine performance from one tankful to the next.