# Service bulletin B120318

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: 10142926
- Published by NHTSA: 2018\-07\-16
- Manufacturer's number: B120318
- Manufacturer's date: 2018\-01\-01
- NHTSA component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

## NHTSA's summary

NO AUDIBLE DIFFERENCE IN EXHAUST WITH "M PERFORMANCE POWER AND SOUND KIT

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10142926-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10142926-0001.pdf)

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

## Components

Engine, Exhaust and emissions

## Vehicles listed

- 2016 to 2018 BMW 340I
- 2017 to 2018 BMW 440I
- 2017 to 2018 BMW 540I

## Recalls for the same vehicles and component

- [2025560](/recalls/tc/2025560.md), 2025-10-15: Engine
- [2024468](/recalls/tc/2024468.md), 2024-08-13: Engine
- [2021711](/recalls/tc/2021711.md), 2021-11-19: Engine
- [2018587](/recalls/tc/2018587.md), 2018-10-26: Engine
- [2018497](/recalls/tc/2018497.md), 2018-09-13: Engine
- [18V465000](/recalls/nhtsa/18V465000.md), 2018-07-11: ENGINE AND ENGINE COOLING:ENGINE

## Other bulletins for the same vehicles and component

- [B010224](/bulletins/11032730.md), 2026-05-18, Warranty extension: ENGINE. The EVAP systems purge \(vent\) valve limited warranty for defects in materials or workmanship has been extended to 15 years / 150,000 miles as determined from the original in\-service date.
- [B010324](/bulletins/11000579.md), 2024-05-31, Warranty extension: ENGINE. EVAP SYSTEM PURGE \(VENT\) VALVE EXT LTD WTY \(ELW\) 15/150
- [B120721](/bulletins/10252038.md), 2024-04-01, Service bulletin: ENGINE AND ENGINE COOLING. Check Control message \(CCM\) indicates: \(ID 213\): Stop, exercising due care. Voltage supply The Service Engine Soon light is on with the following DME Fault Code: 21B209 \- Starter alternator / belt for 48V system \(OSA\_RIEMEN\_RISS\): Belt betweenCombustion engine and starter generator torn And/or one or more of the following other issues are also occurring: Noise in the area of the belt drive. Odor from the engine compartment. Smoke formation in the area of the belt drive. Drive belt damaged or prematurely worn. Torn drive belt.
- [B160623](/bulletins/10247567.md), 2024-01-03, Service bulletin: FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. Engine will crank but not start. There is no communication with the integrated fuel module \(TFE\) whendiagnosing with ISTA. The following two fault codes will be stored in the DME: 032B43 \- Low fuel pressure system, electric fuel pump: pressure value too low CDA594 \- Message \(\- 0x33E\) missing, receiver DME, transmitter TFE
- [B120721](/bulletins/10245367.md), 2023-12-06, Service bulletin: ENGINE AND ENGINE COOLING. Check Control message \(CCM\) indicates: \(ID 213\): Stop, exercising due care. Voltage supply The Service Engine Soon light is on with the following DME Fault Code: 21B209 \- Starter alternator / belt for 48V system \(OSA\_RIEMEN\_RISS\): Belt betweenCombustion engine and starter generator torn And/or one or more of the following other issues are also occurring: Noise in the area of the belt drive. Odor from the engine compartment. Smoke formation in the area of the belt drive. Drive belt damaged or prematurely worn. Torn drive belt.
- [B011423](/bulletins/10245365.md), 2023-12-06, Service bulletin: ENGINE AND ENGINE COOLING. PRESSURE CONTROL VALVE \(PCV\) EXTENDED LTD WTY 15 YEARS/150,000 MILES
- [B010919](/bulletins/10245364.md), 2023-12-06, Service bulletin: ENGINE AND ENGINE COOLING. DIESEL FUEL INJECTORS: LTD WTY EXTENSION TO 10 YEARS/120,000 MILES
- [B011219](/bulletins/10239595.md), 2023-07-24, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. Radiator Grille Upper and Lower Active Air Flaps limited warranty for defects in materials or workmanship has been extended to 15 years/150,000 miles as determined from the original in\-service date.
- [B260422](/bulletins/10235179.md), 2023-05-01, Service bulletin: ENGINE AND ENGINE COOLING. There is a howling or whistling noise from under the vehicle at 30 \-37 mph \(50 \-60 km/h\) when driving after a cold start, when the outside temperature is 32 F \(0 C\) or lower.
- [B260422](/bulletins/10233157.md), 2023-03-20, Service bulletin: ENGINE AND ENGINE COOLING; POWER TRAIN. There is a howling or whistling noise from under the vehicle at 30 \-37 mph \(50 \-60 km/h\) when driving after a cold start, when the outside temperature is 32 F \(0 C\) or lower. The noise goes away as the vehicle/driveline reaches operating temperature.

JSON: [/v1/bulletins/10142926](/v1/bulletins/10142926)

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