# Service bulletin B121715

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: 10152304
- Published by NHTSA: 2018\-12\-17
- Manufacturer's number: B121715
- Manufacturer's date: 2015\-04\-01
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

Service Action: Program Control Units \(DME\). If the vehicle is driven with long engine idle phases followed by full throttle accelerations, engine \(spark\) knocking could occur and result in internal engine damage.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2015/MC-10152304-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2015/MC-10152304-0001.pdf)

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

## Components

Engine

## Vehicles listed

- 2014 to 2015 BMW X5

## Recalls for the same vehicles and component

- [2021711](/recalls/tc/2021711.md), 2021-11-19: Engine
- [2018587](/recalls/tc/2018587.md), 2018-10-26: Engine
- [18V755000](/recalls/nhtsa/18V755000.md), 2018-10-25: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE \(EGR VALVE\)

## Other bulletins for the same vehicles and component

- [b011125](/bulletins/11037504.md), 2026-09-28, Warranty extension: ENGINE. The Exhaust Gas Recirculation \(EGR\) Cooler \(with EGR Valve\) and the Auxiliary Exhaust Gas Recirculation \(EGR\) Cooler limited warranty for defects in materials and / or workmanship has been extended to 25 years without mileage limit as determined from the original first in\-service / delivery date.
- [B010122](/bulletins/11028000.md), 2026-02-02, Service bulletin: ENGINE. N63TU1 CLASS ACTION SETTLEMENT SVC CAMPAIGN: OIL CONSUMPTION DIAGNOSIS/REPAIR
- [B011018](/bulletins/11022359.md), 2025-09-03, Warranty extension: ENGINE. The N57T diesel engine’s Auxiliary Exhaust Gas Recirculation \(EGR\) Cooler’s component\-specific extended limited warranty \(ELW\) now includes more Model vehicles.
- [B011125](/bulletins/11021811.md), 2025-08-13, Warranty extension: ENGINE. The Exhaust Gas Recirculation \(EGR\) Cooler \(with EGR Valve\) and the Auxiliary Exhaust Gas Recirculation \(EGR\) Cooler limited warranty for defects in materials and / or workmanship has been extended to 25 years without mileage limit as determined from the original first in\-service / delivery date.
- [B061125](/bulletins/11014699.md), 2025-03-03, Other: ENGINE. Fan Housing With Fan Return
- [B067424](/bulletins/11009420.md), 2024-10-28, Other: ENGINE. Engine Mount Return
- [B010520](/bulletins/10249439.md), 2024-02-01, Service bulletin: ENGINE AND ENGINE COOLING. The vehicle demonstrates a power loss and the malfunction indicator lamp \(MIL\) on. The following fault codes may be stored in the DDE: 24CE00 Hot film air mass meter: Ratio of measured to calculated air mass too high 27F000 Charge air hose monitoring in idle: Charge air hose fallen down 290900 Air system, air to EGR air mass flow plausibility: Measured air mass compared to calculated air mass too high 290A00 Air system, air to EGR air mass flow plausibility: measured air mass compared to calculated air mass too high and high charging pressure control deviation
- [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
- [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
- [B170222](/bulletins/10225107.md), 2022-10-31, Service bulletin: ENGINE AND ENGINE COOLING. Coolant is leaking from under the car which is equipped with the S63 engine. A low coolant warning might also be displayed \(CC Message ID166\).

JSON: [/v1/bulletins/10152304](/v1/bulletins/10152304)

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