Comite des Constructeurs d'Automobile du Marche Commun. The European organisation that set standards for engine lubricants. This organisation has been replaced by ACEA (Association des Constructeurs Europeens d'Automobiles).

Compact Disk Read Only Memory. Stores up to 800Mb of data. The data is 'read only' which means that you cannot change or overwrite it.

Capacitor Discharge Ignition

Capacitor discharge ignition system that uses a capacitor to produce the high tension for arcing across the electrodes of the spark plug.

Cold Engine Air Bleed

Central Electronic Control Unit

That part of a battery made from two dissimilar metals and an acid or alkali solution. A cell stores chemical energy for use later as electrical energy.

Removable covers for a battery cell.

See Centre Bearings.

See Centre of Gravity.