# Service bulletin 640913

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: 10147951
- Published by NHTSA: 2018\-11\-13
- Manufacturer's number: 640913
- Manufacturer's date: 2014\-01\-01
- NHTSA component: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; VISIBILITY; ENGINE AND ENGINE COOLING

## NHTSA's summary

Service Action: Program IHKA Control Unit. The control panel for the air conditioning \(IHKA\) may fail intermittently. CAUSE IHKA software error

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2014/MC-10147951-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2014/MC-10147951-0001.pdf)

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

## Components

Engine, Glass, wipers and mirrors, Heating and air conditioning

## Vehicles listed

- 2013 to 2014 BMW Z4

## Recalls for the same vehicles and component

- [2024468](/recalls/tc/2024468.md), 2024-08-13: Engine
- [24V608000](/recalls/nhtsa/24V608000.md), 2024-08-13: ELECTRICAL SYSTEM:WIRING:CONNECTORS/PLUGS/RECEPTACLES; ENGINE AND ENGINE COOLING:COOLING SYSTEM:PUMP

## Other bulletins for the same vehicles and component

- [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.
- [SIM010717](/bulletins/10215024.md), 2022-07-05, Service bulletin: ENGINE AND ENGINE COOLING. The engine?s intake charge\-air duct limited warranty extension to 10 years/120,000 miles applies to ?eligible USspecification
- [SIB010717](/bulletins/10214947.md), 2022-07-05, Service bulletin: ENGINE AND ENGINE COOLING. The engine coolant thermostat component\-specific limited warranty extension to 10 years/120,000
- [SIB110317](/bulletins/10204619.md), 2021-12-13, Service bulletin: ENGINE AND ENGINE COOLING. BMW of North America, LLC BMW NA is extending the limited warranty for the engine timing chain and oil pump drive chain modules to: 7 years/70,000 miles as determined by the vehicle's original in\-service date
- [B110317](/bulletins/10204534.md), 2021-12-13, Service bulletin: ENGINE AND ENGINE COOLING. For the above\-referenced vehicles, BMW of North America, LLC \(BMW NA\) is extending the limited warranty for the engine timing chain and oil pump drive chain modules to: 7 years/70,000 miles as determined by the vehicle's original in\-service date.
- [B110317](/bulletins/10203331.md), 2021-11-08, Service bulletin: POWER TRAIN; ENGINE AND ENGINE COOLING. BMW of North America, LLC \(BMW NA\) is extending the limited warranty for the engine timing chain and oil pump drive chain modules to: 7 years/70,000 miles as determined by the vehicle's original in\-service date
- [B011321](/bulletins/10199287.md), 2021-07-19, Service bulletin: ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. CLASS ACTION SETTLEMENT: N54/N54T/N55 ELECTRIC ENGINE COOLANT PUMP . With the court's FINAL approval, BMW of North America, LLC \(BMW NA\) has entered a nationwide settlement with the plaintiffs in the following class action: Oliver, et al v. BMW NA, et al
- [B011321](/bulletins/10198894.md), 2021-07-06, Service bulletin: ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. CLASS ACTION SETTLEMENT: N54/N54T/N55 ELECTRIC ENGINE COOLANT PUMP . With the court's FINAL approval, BMW of North America, LLC \(BMW NA\) has entered a nationwide settlement with the plaintiffs in the following class action: Oliver, et al v. BMW NA, et al
- [B510415](/bulletins/10193495.md), 2021-05-17, Service bulletin: VISIBILITY. The customer complains of rattling noises from the rear window when driving on rough roads.
- [B160213](/bulletins/10193493.md), 2021-05-17, Service bulletin: ENGINE. A manufacturing defect inside the electric fuel delivery unit \(in\-tank fuel pump\) pressure\-limiting valve will result in a noise while driving. This defect will not lead to fuel pump failure or loss of power.

JSON: [/v1/bulletins/10147951](/v1/bulletins/10147951)

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