The 123\MERCEDES-4-R is designed for the W110, W115 and W123 engines WITHOUT vacuum advance and is therefor the 123ignition to use in the Mercedes 190 SL and the Mercedes Ponton. This 123 ignition can also be used in the Mercedes 190C, 200, 220, 220US and 230 (all without vacuum advance). Next to the standard-curves, it offers optimised advance-curves for driving on LPG or E85, the new Bio-Ethanol-fuel of the future.

The 123\MERCEDES-4-R-V is designed for the W110, W115 and W123 engines, in the Mercedes 190C, 200, 220, 220US and 230. Next to the standard-curves, it offers optimised advance-curves for driving on LPG or E85, the new Bio-Ethanol-fuel of the future.

123\MERCEDES-4-R-V-IE for Mercedes with 4 cyl. engines with fuel injection.

The 123\MERCEDES-6-R-V is designed for W108, W109, W110, W111, W112, W113, W114, W123 and W130 6-cyl. engines, in the Mercedes: 220, 230, 230S, 230SL, 250, 250SL, 250SE, 250CE, 280, 280S, 280SE, 280SL, 300SE, 300SEL and 300SEb.

The 123\MERCEDES-6-R-V is designed for pre-1962 6-cylinder engines. This 123ignition can be used in the Mercedes 180, 219, 220, 300 & 300SL (please look at Bosch distributor numbers).

123\MERCEDES-6-R-V-IE for Mercedes with 6 cyl. Engines with electronic fuel injection system.