BMW Technology Guide

[NewNiceMrMe]

You might have seen this before, but it has been revamped, updated and generally vastly improved.

It's the BMW Technology Guide Online.

It tells you everything you could possibly want to know about the technology used in every BMW model - with detailed drawings, descriptions and terminology guides.

It's very good indeed and quite reassuring to see how technically intelligent some of the things we take for granted are.

BMW Technology Guide

[sayerbloke]

"Vanos and double-Vanos (double-variable camshaft control) improve the torque curve of an engine significantly. The special feature of both Vanos and double-Vanos is that they react to the engine speed and the position of the accelerator, adapting valve timing on both the intake and outlet camshafts by even the slightest quantities to suit the running conditions of the engine.

The result is even more torque at low speeds and superior performance at high revs. The reduction in unburnt residual gas improves the idling qualities of the engine, and special control maps for the warm-up phase enhance the efficiency of the catalytic converter. The car's Digital Motor Electronics (DME) are responsible for the fully-variable control of Vanos and double-Vanos."

So, that`s the official line on it. I did wonder. I knew what it did, but that explains a bit better how it does it

Good find