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International Automotive Technicians Network
Re: '94 MB S420 PSE inoperative
Posted to Technical Discussion Forum on 6/11/2007

I'm assuming the doors don't work from the remote, the key or the lcoking switch inside?

While there is another fuse involved with circuit 15 (key on ) operation, that shouldn't affect the pump in key off situations. Have you tried pulling the fuse and reins... Login to read more.