Part: ITT SAF1093 Processor
After rebuilding tons of instrument clusters we found out that leaking batteries on the SI board (Service Interval Board) can cause problems with processor on the board.
In bad cases the acid will find its way through the tracks on the PCB (Printer Circuit Board) causing the CPU to malfunction.
We have the ITT SAF1093 CPU (Central Processing Unit) in stock.
All CPU’s have a 24h test cycle and a full year warranty!
You will find this CPU in all models years 1981 1982 1983 1984 1985 and early 1986. (Early production)
In 1986 the clusters were redesigned and got completely different boards. You can recognize an early cluster by checking how many red LED’s are in the Service Interval display.
5 Green, 1 Yellow, 3 Red = Early production
5 Green, 1 Yellow, 1 Red = Late production
We also have the SAF1098 CPU in stock, these are used in the 524td Turbodiesel models with the M21 diesel engine (M21D24)
Just specify your need while ordering the processor if you want it for the gas model M10 M20 M30 M88 and S38 or for the M21 diesel.