Top: Locate connector A368*1B and remove it from the DME. Center: Check for water residue or corrosion in the connector and in the connector chamber of the DME. Bottom: If no water residue is found, install any missing sealing pins. If damage/water residue is found, replace the wiring harness and the DME control unit.
This bulletin applies to BMW 3-series Sedans equipped with the B46 or B58 engine and built from August 2015 to November 2016. Due to possible missing sealing pins in the unused wiring slots of the DME connector A368*1B, moisture ingress could occur increasing the risk of corrosion or electrical shorts between pins.
The MIL may be on and various check control messages could be displayed indicating functional failures affecting dynamic stability control (DSC) and electronic power steering (EPS) systems. Inspect and rework or replace the DME connector harness section and DME. If corrosion/damage is found, replace the harness section and the DME.
If connections are clean and dry it is only necessary to inspect the connector for missing sealing pins and install replacements as needed.
Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.
