NOT an M112/M113 engine-series video. This is one of Ken's ABC-suspension videos, which he's nearing the end of. In this series he compares the various Mercedes' suspensions of the 2000's era. His favorite is the Mercedes' Airmatic suspension. Airmatic is an air-suspension with a center-console button that I think, has 3 different settings you can choose from. Airmatic is not an "active" suspension like ABC is. Ken's advice on an ABC suspension car is to keep it until it requires you to spend big money to maintain. At that point he recommends getting a quality "mechanical" (not air) coil-spring kit and getting rid of the ABC-pump for a normal power-steering pump like the Crossfire has. Although it's possible to keep the ABC-pump Ken believes you'll gain about 20 horsepower by getting rid of it for the much smaller "PS only" pump (the ABC pump powers BOTH the active suspension plus the power-steering system). The reason the ABC pump is so large is not due to powering both systems, it's primarily because to have the quick reaction time an active suspension demands the hydraulic pressure must be extremely high, much higher than for a power-steering system alone. I forgot, Ken recommends getting a conversion-kit with adjustable shock absorbers, the kind you manually set at the top of the shock absorber. That way you can adjust the suspension to YOUR LIKING which might be totally different to someone else's. As ABC normally has a plush, luxurious ride until the logic tells it to firm-up, Ken recommends getting tires which have a softer-ride when doing the conversion. Anyway, Ken enjoyed to no end flooring the accelerator with his newly found 20 horsepower, and although he never mentions it, I am left wondering how much fuel mileage has improved without all that parasitic drag.