# Service bulletin B120220

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.

- Type: Service bulletin
- NHTSA id: 10171482
- Published by NHTSA: 2020\-02\-18
- Manufacturer's number: B120220
- Manufacturer's date: 2020\-01\-01
- NHTSA component: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM

## NHTSA's summary

THE MIL IS ILLUMINATED WITH OXYGEN SENSOR FAULTS STORED: One of the following faults may be stored in the digital motor electronics \(DME\) either as part of diagnosing a different issue; and/or an illuminated malfunction indicator lamp \(MIL\). Fault code Control module Fault code text 13900 DME Oxygen sensor after catalytic converter from rich to lean: Delayed response Or: 12B011 DME Oxygen sensor 2 after of catalytic converter from rich to lean: Delayed response This situation is not associated with any drivability complaints. An unfavorable DME diagnostic calibration may cause a fault code to be erroneously stored. These faults will cause the MIL to illuminate.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10171482-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10171482-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Engine

## Vehicles listed

- 2018 to 2020 BMW M5

## Recalls for the same vehicles and component

- [19V883000](/recalls/nhtsa/19V883000.md), 2019-12-11: ELECTRICAL SYSTEM:WIRING; POWER TRAIN:AUTOMATIC TRANSMISSION
- [19V513000](/recalls/nhtsa/19V513000.md), 2019-07-03: ENGINE; FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP
- [18V323000](/recalls/nhtsa/18V323000.md), 2018-05-16: ELECTRICAL SYSTEM:SOFTWARE; FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

## Other bulletins for the same vehicles and component

- [B011724](/bulletins/11024203.md), 2025-10-09, Warranty extension: ENGINE. The Fuel Injector Condition\-Specific Repair Coverage Program applies to qualifying repairs for the required replacement of one or more the fuel injectors which were determined to have failed due to a buildup of external corrosion in the engine’s center fuel injector bore area that resulted after this location was periodically contaminated by engine coolant residue over time. This special program’s coverage is 15 years / 150,000 miles as determined from the vehicle's original in\-service / first delivery date.
- [B063525](/bulletins/11020074.md), 2025-07-02, Other: ENGINE. Engine Return
- [B720417](/bulletins/11017098.md), 2025-04-18, Warranty extension: ELECTRICAL SYSTEM; AIR BAGS. The Supplemental Restraint Systems \(SRS\) Front Passenger’s Seat Occupancy Capacitive Interior Sensor \(CIS\) Mat for defects in materials and/or workmanship that causes a false seat occupancy alert to occur has been extended to 10 years / 120,000 miles as determined from the vehicle's original inservice / first delivery date.
- [B010821](/bulletins/11012066.md), 2024-12-31, Warranty extension: ENGINE. The NVLD limited emission related warranty for defects in materials or workmanship has been extended to 15 years/150,000 miles as determined from the original in\-service date
- [B170324](/bulletins/11002676.md), 2024-07-01, Service campaign: ENGINE. Under certain driving situations, coolant leaks onto the fuel injectors on cylinder bank \(5\-8\).
- [B170324](/bulletins/11000498.md), 2024-05-29, Service campaign: ENGINE. Under certain driving situations, coolant leaks onto the fuel injectors on cylinder bank \(5\-8\).
- [B170324](/bulletins/10253345.md), 2024-05-03, Service bulletin: ENGINE AND ENGINE COOLING. BMW AG has issued a Delivery Stop \(effective April 15, 2024\) on certain Model Year 2018 \- 2023 BMW vehicles that were produced between November 7, 2017, and September 9, 2022.
- [B510819](/bulletins/10249437.md), 2024-02-01, Service bulletin: VISIBILITY:POWER WINDOW DEVICES AND CONTROLS; ELECTRICAL SYSTEM. The basic conditions for initializing the power windows are not met.
- [B610524](/bulletins/10249032.md), 2024-02-01, Service bulletin: EQUIPMENT:ELECTRICAL:INFOTAINMENT; ELECTRICAL SYSTEM. The Central Information Display goes black intermittently due to resets of the Head Unit \(HU\-H3\). FaultB7F8F9 â“ âHU\-H: Resetâ will be stored in the HU\-H3.
- [B611305](/bulletins/10249027.md), 2024-02-01, Service bulletin: ELECTRICAL SYSTEM. The electrical system of BMW vehicles has been subject to an ongoing development process over the last few years. This has led to increased demands being placed on the battery. This document covers important information for the dealer on how to handle “discharged battery” complaints.

JSON: [/v1/bulletins/10171482](/v1/bulletins/10171482)

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