Kyle and Lori Greene wrote:
>
> ">
> > My 1990 318iS only has two there I think. Fuel pump and Motronic relays.
> >
> The third relay is for the O2 sensor heater. If your car is not so
> equipped, it will be empty.

That explains why I have only two. A cat was optional on late model
E30s, but I've never seen one actually fitted.

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