bmwe21.net forums

Hi

I was wondering if anybody has got a diagram or knows the locations of the vacuum hoses for the Pierburg Zenith 2B4 carb fitted to a 1981 316.
I have come across the following diagrams but one of them shows a distributor vacuum unit with 2 inputs where mine only has one.




There are also 2 output on the carb shown below, but I'm not sure which one goes where!





Any help would be greatly appreciated!!

Thanks

Tim

Tim, that's the diagram for the M10 engine with the carb you mention but for the E30, even though it has only one vac hose in the distributor, the port in the manifold is in my engine (I have a 1987 316 with a 1.8 M10).
But mine has two hoses goung to a massive electric plug (where the economy meter is plugged) but it (it is where number 2 is in your diagram). I am at a loss too.