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2018 Audi S4
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2018 Audi S4

2018 Audi S4 Knock Sensors

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Knock Sensor
Walker Products®
Knock Sensor
Part Number: 2421028
Guaranteed to Fit
$28.99
Vehicle Fitment
  • 2018 Audi S4 Prestige 6 Cyl 3.0L
  • 2018 Audi S4 Progressiv 6 Cyl 3.0L
  • 2018 Audi S4 Technik 6 Cyl 3.0L
  • 2018 Audi S4 Premium Plus 6 Cyl 3.0L
Product Details
Notes : 53.44 mm Length; (2) Male Blade Terminals; (1) Female Oblong ConnectorQuantity Sold : Sold individuallyWarranty : 90-day Walker Products limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Knock Sensor
Delphi®
Knock Sensor
Part Number: DELAS10169
Guaranteed to Fit
$21.49
Vehicle Fitment
  • 2018 Audi S4 Prestige 6 Cyl 3.0L
  • 2018 Audi S4 Progressiv 6 Cyl 3.0L
  • 2018 Audi S4 Technik 6 Cyl 3.0L
  • 2018 Audi S4 Premium Plus 6 Cyl 3.0L
Product Details
Quantity Sold : Sold individuallyWarranty : 1-year or 12,000-mile Delphi limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

OE Replacement Series Knock Sensor
Bosch®
OE Replacement Series Knock Sensor
Part Number: BS0261231146
Guaranteed to Fit
$24.49
Vehicle Fitment
  • 2018 Audi S4 Technik 6 Cyl 3.0L Actual OE Part
  • 2018 Audi S4 Premium Plus 6 Cyl 3.0L Actual OE Part
  • 2018 Audi S4 Prestige 6 Cyl 3.0L Actual OE Part
  • 2018 Audi S4 Progressiv 6 Cyl 3.0L Actual OE Part
Product Details
Quantity Sold : Sold individuallyWarranty : 24-month or 24,000-mile limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : European Vehicle PartsSeries : OE Replacement Series
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Product Questions & Answers

Bosch OE Replacement Series Knock Sensor
$24.49
Q:I need 2 knock sensors ,one for from first to 3th  cylinder ,with is this one . And one more from 4th to 6 th cylinder .My question is :did there is the same ,or i need to buy this one and a different one for the 4th to 6th cylinder? Show Less
Georgi B.
A:BEST ANSWERHi Georgi, thank you for reaching out. We are unable to answer your question accurately due to a lack of information. Kindly call our parts team at 1-866-529-0412 and tell us more about your vehicle. Show less
Aldrin P.
 
1 Question, 1 AnswerView all Q&As >

Helpful Automotive Resources

P0334 Code: Knock Sensor 2 Circuit Intermittent (Bank 2)
P0334 Code: Knock Sensor 2 Circuit Intermittent (Bank 2)The knock sensor generates a low amount of electricity while the engine is running.   A code P0334 will be stored if the PCM detects an unusual signal from knock sensor 2.
P0324 Code: Knock Control System Error
P0324 Code: Knock Control System ErrorThe knock sensor is part of the knock control system that includes its connector, wiring, and the PCM. Most sensors are attached to the engine block, cylinder head, or intake manifold. In most engines, there is a knock sensor for every cylinder bank. There are some engine designs that have
P0333 Code: Knock Sensor 2 Circuit High Bank 2
P0333 Code: Knock Sensor 2 Circuit High Bank 2The algorithms in the ECM/PCM are set up in such a way that spurious knocking noises not related to combustion are ignored. – Richard McCuistian, ASE Certified Master Automobile Technician
8 of the Most Important Car Sensors You Should Know About
8 of the Most Important Car Sensors You Should Know AboutAs a driver, you must know what these sensors are and how they contribute to your vehicle’s performance. Here are some of the most common car sensors you should know about. Oxygen Sensor The oxygen (O2) sensor measures the exhaust’s oxygen content.
P0326 Code: Knock Sensor 1 Circuit Range / Performance Bank 1
P0326 Code: Knock Sensor 1 Circuit Range / Performance Bank 1A knock sensor is a one-wire or two-wire sensor mounted on a cylinder block, and it detects engine knocking. “Knock sensor 1” in this code refers to the first sensor (if there are two), while “bank 1” refers to the side of the engine with cylinder #1.
P0328 Code: Knock Sensor 1 Circuit High (Bank 1 )
P0328 Code: Knock Sensor 1 Circuit High (Bank 1 )Knock sensors are devices that are used to detect engine knock. This sensor is typically a two-wire sensor, though there are some devices that only have one wire. The knock sensor receives a 5-volt reference and returns a signal to the PCM.