Gents, I was encountering a battery drain issue on my 92 SWB classic leaving the battery completely dead in 1-2 days. I was able to fix this issue by installing the correct Bosch fuel pump relay. The issue now is a very slow drain hence planning on having a meticulous mechanic go through the wiring to address the root cause and get it sorted. The chap I am using is a BMW and Porsche specialist so looking for links or any info/documents fellow members have on the wiring diagrams, fuses and relays for the classic. Many thanks in advance for any info or links as I continue to work through my restoration project.