e36 m3 wiring harness | eBay www›Search›e36 m3 wiring harnessFind great deals on eBay for e36 m3 wiring harness. Shop with confidence. Skip to main content. eBay Logo: BMW OEM E36 328 M3 ENGINE WIRING HARNESS DME ASC OBD2 MANUAL TRANSMISSION 328I See more like this. BMW M3 E36 Dashboard Trim Dimmer Switch Cover housing oem 325 328 M3 318 323 See more like this. BMW Plastic Cover for Engine Wiring Harness 51711380391 This plastic cover installs along the firewall of the later 4 cylinder model E30s and keeps the ugly wiring harness out of sight. This cover is a MUST if you are trying to keep your E30 M3 or 318is engine bay looking clean and fresh.