Re: US LKM have only 3 relays for the E32/7series
manufatcured by Hella, most all e34s between 1988 and 1992 have LKMs made by Hella and have 4 relays. The E32 LKMs have 3 and came in two types- LKM and LKM-B (basic). Only the E32 LKMs have a Mustard relay. Both LKMs are interchangeable E32/E34. In 1992 Hella changed the circut protocall to match the newer DME upgrade.