restauration of familly car 250 CE 1969

Hello,

I am Cyril, I am French, I am 27 years and I restore the car of the great father of my wife. It's Mercedes 250 CE. It's has been arrested since 2000.

The ECU have a dommage:

1 Siemens transistor have 2 pins broken:

Dieses Bild ist für Gäste verborgen.
Bitte anmelden oder registrieren um das Bild zu sehen.

and the power transistor is dead:

Dieses Bild ist für Gäste verborgen.
Bitte anmelden oder registrieren um das Bild zu sehen.

In the picture, the left transistor and the central transistor are Siemens parts (AUY21K).

My big problem is that: I don't no the reference of the right transistor. Can you help me?

the website is a real gold mine, many thank of the team.

Cyril

Hi Cyrill,

your ECU seems to have been under water. That normally causes a coating on PCB board and then you have false currents that cause all kinds of fluctuating problems. I have once tried to repair such an ECU and failed. Depending on humidity and temperature I always had different results. Finally I gave up on that ECU - that was the only time I had to. So my clear recommendation: FInd another ECU.