Starting from october 1969 the DS21 could be
ordered as the DS21 i.e. (i.e. = injection electronique). The DX2 engine
used in the DS21 i.e. was the same as the original 2175 cc DX engine but
equipped with the D-Jetronic electronic ignition system from Bosch which was
also used in other cars.
- VW used the D-Jetronic first in
the VW 1600 (Typ 3) and later in the VW 411 (Typ 4) and in the VW
- Mercedes-Benz used it in the 250
CE (in 1969) and the 280SE 3,5 / 300SEL 3,5 / 280SE 4,5 USA / 300 SEL
4,5 USA. Starting from 1972 all Mercedes'es with a fuel injection engine
used the D-Jetronic.
- Volvo used it in
P 1800 E/ES, the 144 GL and the 164 E.
- Renault used it in the R17 TS.
- Saab used it in the 99E.
- BMW used it in 3.0 CSi starting
from the autumn of 1971 and one year later in the 3.0 CSL.
- Citroën of course used the D-Jetronic
in the DS21 i.e. and later also in the DS23 i.e. and in the SM i.e.