I believe "E25" is an option pack, I think it was for Canadian vehicles and consisted of the following options:
- 113 - KANADA-AUSFUEHRUNG (Version for Canada)
- 158 - Radio "Blaupunkt Monterey"
- 185 - 3-PKT. GURT VO. 2-PKT. HI. (Three-point belt, belt-lock with cables, for driver's seat only and two-point belt, rear)
- 190 - MIT ERHOEHTER TUERFESTIGKEIT (Increased side door strength)
- 218 - HALTER F. KENNZ. VO+HI
- 464 - OHNE KOMPRESSOR + REIFENDRUCKPRUEF.
- 533 - ALARM-ANLAGE INTERVALL
- 576 - OHNE NEBELSCHLUSSLEUCHTE
- 577 - GRUENE FRONTSCH. M. GR.KEIL EL.BEH.
- 912 - OHNE TYPSCHILD
It's possible that M113, M185 and M190 are not part of E25, but are standard on all C36 cars
And your other options are:
- C36 - Canada
- 070 - PERSENNING (Cover)
- 220 - SPERRDIFFERENTIAL (Locking differential 40%)
- 395 - LM-RAEDER GESCHMIEDET (Light-alloy rims, forged, 16-inch)
- 454 - AUTOM. GESCHWINDIGKEITSREGULIERUNG (Automatic speed control)