Bought a 2000 c240 A/t. Battery was completely dead. Bought a new battery and installed it. Speedo cluster eg: speedo, rev counter, fuel gauge, temp gauge and none of the lights working. Must the computer be re-programed or is there something else wrong. 1st MB. The key does not work the central locking. Is this part of the same problem?[sm=boohoo.gif]