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E28525e

Fuel relay making permanent noise

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Hello 

My new e28 525e is starting well but the pump relay is making a permanent noise  It looks like something rotating inside thé relay

It looks like a failure Have you any idea about it ?

AC897EEA-3D28-443B-B334-9ADB789BED0E.png

Edited by E28525e

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Any idea about thé fonction of this relay ?

When the relay is unplugged Thé engine starts well and no impact when  driving

 

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Hello.

 

That is not the fuel pump relay, which is located next to the main relay on the side of the fuse box in the engine compartment.

 

I believe that this is a Revolution or Speed relay and is part of the idle control system used on early motronic systems. (1982-3).

 

Is it located inside the car above the glove box, near the motronic dme?   

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Thé révolution relay is near thé fuse box and thé idle is ok when thé relay is disconnected 

 

what a surprise ! 

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