Detailed repair manual for the 1987 BMW 535is (E28) L6-3430cc 3.4L SOHC (M30).. Home >> BMW >> 1987 >> 535is (E28) L6-3430cc 3.4L SOHC (M30) >> Repair and Diagnosis. Repair and Diagnosis Expand All (for easy ctrl-f) Collapse All. A L L Diagnostic Trouble Codes ( DTC ). Vacuum and Vapor Hose Diagrams. Evaporative Emissions System; Positive.. Temp sensor to nipple under throttle body - I read in another thread the bit of what looks like vacuum line is actually a part to prevent vacuum loss - but under the throttle body is also a 1" round black/white disk in line that only allows one way flow. White is closest to TB as shown on page 15-7 of the Bentley (only place I saw it's picture)
Vacuum Diagram. Jump to Latest. M5Board is the best forum community for information on the BMW M5 E60 (V-10), E39 (V-8), E34 (straight 6), E28, F90 and F10. Discuss performance, specs, reviews and more! Show Less . Full Forum Listing. M5Board.com is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. Content on.. Manual for operation, maintenance and repair of cars BMW 5ER E28 1981-1987 model year. Cars: BMW 5 Series cars in the e28 1981-1987 body. release. Models: BMW 520i (82-87); BMW 525e (85-87). bodies: four-door sedan. Engines: M20B20 gasoline engine with K / L-Jetronic / Motronic injection system;