Genuine BMW
SKU: BMW-12141736303

BMW Knock Sensor - Genuine BMW 12141736303

740i, 740iL



Available
Ships in 4-6 weeks
Price each: $213.99
Core charges are assigned to parts that have reusable components by manufacturers to encourage the return of the used units. Once you return the old part you will be refunded for your core charge, details regarding the return will be emailed to you once you place the order. Note: The customer is responsible for the cost of return shipping.
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Description

Details

SKU:
BMW-12141736303
FCP Euro ID:
236843
Quality:
Genuine

OE Numbers

12141736303

MFG Numbers

N/A

Product Information

Also known as a ping sensor, detects pre-detonation in the combustion chamber, 4 per car

The silent killer of all engines is pre-detonation most commonly referred to as engine knock. Engine knock occurs when the air/fuel mixture ignites before the cylinder reached top dead center. This premature ignition can cause pitting on the piston as well as damage to the rod bearings. Engine knock can easily kill an otherwise good engine.

Knock sensors detect this running condition and send signals to the DME in order to adjust fueling and ignition timing. Without knock sensors, engines can't safely run aggressive ignition timing. A failed knock sensor will usually cause your engine to run in limp mode.

Ignition Knock (Detonation) Sensor

Knock Sensors tell your engine of any pre-detonation so that it can make the necessary adjustments to protect your engine from damage.

Ignition Knock (Detonation) Sensor Failure Symptoms
  • Loss in MPG
  • Loss in acceleration
  • Trouble maintaining pace at highway speeds

About Genuine BMW

The original parts used by BMW to build your car are available as replacement parts under the “Genuine BMW” brand. When ordering a Genuine BMW part you are guaranteed to get the same part that you would pick up from your local dealerships part department. Genuine BMW parts have been built to BMW’s stringent standards and are the same quality of the original parts used to build your Ultimate Driving Machine.

You may not realize this, but the parts that make up your BMW are not necessarily manufactured by BMW. No cause for concern, as BMW designs the part, hires a manufacturer, and ensures its quality to you. In fact, many of these manufacturers have been making parts for BMW for decades. In our industry these manufacturers are called OEM (Original Equipment Manufacturers), and these are often brands you recognize, including Lemforder, ZF, Sachs, Bosch, Valeo, Zimmermann, Siemens VDO, Corteco, and more. Don’t be surprised to open that Genuine BMW parts box and find an OEM branded part inside, simply with the addition of a BMW logo.

Be sure to keep an eye out for OE tags on our product pages to quickly identify parts coming direct from OE manufacturers. That extra bit of insight could save you some serious money while shopping! Refer to our OE Academy for further information regarding the OE/OEM tags throughout the site.

Fits These Cars

BMW 740i

  • 1993 BMW 740i Ignition Knock (Detonation) Sensor
    Automatic RWD Sedan 4.0L V8 M60 Gas
    Notes: Up to 5/1993

BMW 740iL

  • 1993 BMW 740iL Ignition Knock (Detonation) Sensor
    Automatic RWD Sedan 4.0L V8 M60 Gas
    Notes: Up to 5/1993

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