TSBs

BMW Diff Sensor Harness Fix

July 2, 2021

This bulletin applies to 2014 BMW 5-Series sedan, 2-Series coupe, X3, X4, 3-Series sedan, 3-Series sports wagon, 4-Series coupe, 4-Series convertible, 3-Series Gran Turismo and 4-Series Gran Coupe vehicles.

Information courtesy of Mitchell 1,

Mike Mavrigian

The service engine soon MIL may be on with the differential pressure sensor fault 195002 stored (differential pressure sensor, tank vent valve, electrical short circuit to ground).

The cause: During engine operation, vibration and movement of the sensor can damage the pin contacts of the harness connector or cause a break in the wiring.

Perform diagnosis with the latest version of ISTA. A revised test plan for this DME fault was made available with ISTA 3.48, released in February 2015.

Install a differential pressure sensor repair harness, which is spliced in at the DME connector. It now includes a harness clip to secure it to the ventilation pipe to prevent any future damage. The new adapter repair harness is available as P/N 12 51 8 645 886.

Repair procedure for installing the harness adapter.

About the Author

Information courtesy of Mitchell 1

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.

About the Author

Mike Mavrigian | Motor Age Editor

Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety of specialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.