i'm rearranging the wiring on w123 and now stuck with this relay box under the hood on driver side with black box cover

anyone know what is this relay for? and the two fuses?
the car original came with 2.0 m102 carburetor engine and no AC or cruise control ,
i had search but could find any clear answer thanks in advance

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W123 - M111+Turbo

That relay and fuses is for the electrical heating system of the intake manifold.

Ciao!

thanks , i had check another w123 with same engine and think it has to be something for the m102 engine

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W123 - M111+Turbo