WenmarOpen by Wenmar Pro

Service bulletin B320314

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10147197
Published by NHTSA2018-11-05
Manufacturer's numberB320314
Manufacturer's date2015-07-01
NHTSA componentSERVICE BRAKES, HYDRAULIC:POWER ASSIST; STEERING; STEERING:HYDRAULIC POWER ASSIST SYSTEM; STEERING:ELECTRIC POWER ASSIST SYSTEM

NHTSA's summary

Power-Assisted Steering Failure. The power-assisted steering fails with a warning lamp in the instrument cluster or a check control message in the Central Information Display. In some cases, the Dynamic Stability Control warning lamp (DSC) in the instrument cluster may also be illuminated. Failure of the power-assisted steering may be caused by various software-related issues. The following codes may be stored in the fault memory of the Electric Power Steering (EPS): Scenario 1: 0x4823E1 Scenario 2: 0x4823CB/0x4823CC Scenario 3: 0x4823D2 and/or 0x4823EC Scenario 4: 0x48239C (DSC warning lamp lights up in the instrument cluster) Scenario 5: No communication with the EPS is possible (not accessible using diagnostics) Scenario 6: 0x4823EE and 0x4823C2

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Brakes, Steering, Power steering

Vehicles listed
BMW 228I2014, 2015, 2016
BMW 320I2013, 2014, 2015, 2016
BMW 328D2014, 2015, 2016
BMW 328I2012, 2013, 2014, 2015, 2016
BMW 330E2016
BMW 335I2012, 2013, 2014, 2015, 2016
BMW 340I2016
BMW 428I2014, 2015, 2016
BMW 435I2014, 2015, 2016
BMW ACTIVE HYBRID 32013
BMW ACTIVE HYBRID 32014, 2015
BMW M235I2014, 2015, 2016
BMW M32015, 2016
BMW M42015, 2016

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
B0126182020-07-27. Service bulletin. EPS STEERING ELECTRIC MOTOR MOUNTING BOLTS LIMITED WARRANTY EXTENSION: There are front end noises when turning the steering wheel and/or there is limited power steering assist when maneuvering or parking the vehicle. For the basic steering gears, one possible cause is that the mounting bolts for the electric motor may become loose, missing and/or broken due to corrosion.
B0126182019-02-25. Service bulletin. EPS STEERING GEAR FOR CERTAIN VEHICLES: ELECTRIC MOTOR MOUNTING BOLTS - LIMITED WARRANTY EXTENSION TO 10 YEARS/120,000 MILEAGE.
3202182018-05-07. Service bulletin. CHECK CONTROL MESSAGE (CCM): ASSISTANCE SYSTEM RESTRICTED AFTER DELETING TRANSPORT MODE: The CCM assistance systems restricted or pedestrian protection system failed is displayed after deleting transport mode.
SIB-32-03-142015-06-06. Service bulletin. BMW: IN CHECK CONTROL MESSAGE OR INSTRUMENT CLUSTER, A FAILURE WITH POWER ASSISTED STEERING IS ILLUMINATED, DUE TO SOFTWARE RELATED ISSUES. *PE
SIB-32-02-132013-07-10. Service bulletin. BMW: SOME VEHICLES MAY EXPERIENCE A FAILURE OF ELECTRONIC POWER STEERING (EPS) WHEN ENGINE HAS STARTED, CAUSED BY A SPECIFIC SITUATION OF UNDERVOLTAGE DURING ENGINE START UP. MODEL 2010-2012 F30 (3 SERIES). *PE