AutoCodes - Mercedes-benz - P0328 MERCEDES-BENZ

P0328 MERCEDES-BENZ Code - Knock/Combustion Vibration Sensor 1 Circuit High Bank 1

Repair Importance Level: 2/3
Repair Difficulty Level: 2/3
Table of contents

|P0328 MERCEDES-BENZ code possible causes

  • Faulty Knock Sensor
  • Knock Sensor harness is open or shorted
  • Knock Sensor circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

|How do I fix the P0328 MERCEDES-BENZ code?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|P0328 MERCEDES-BENZ code tech notes

Mercedes Benz Code = 0501 (knock sensor 1, right) has a short circuit to positive. (P0328)

The P0328 code means that the Knock Sensor is not working correctly. Problems with the knock sensor will not cause engine performance problems. Replacing the knock sensor usually takes care of the problem.

|Cost of diagnosing the P0328 MERCEDES-BENZ code

Labor: 1.0

The cost of diagnosing the P0328 MERCEDES-BENZ code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|When is the P0328 MERCEDES-BENZ code detected?

An excessively high voltage from the Knock Sensor is sent to Electronic Control Module (ECM)

|What are P0328 MERCEDES-BENZ code possible symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Possible Lack/Loss of Power

|P0328 MERCEDES-BENZ code description

This fault code is stored in the Engine Control Module (ECM) when a combustion anomaly is detected. When irregular combustion takes place a detectable knock or vibration occurs. This acts on the knock sensor and causes a voltage to be generated by the component. The ECM then uses the output from the camshaft position sensor to calculate the knock window for a given ignition event. The knock window is the angular period, in crankshaft rotation, when combustion knock can occur. If the knock sensor produces a voltage outside of the knock window, the signal will be ignored. For correct operation of the knock sensor, the component must be torqued to the correct tightness and the retaining bolt must be replaced after it has been removed. The engine lubrication system should also be inspected as a fault here could result in false knock sensor codes being generated.
OBDII Code P0328 Mercedes-benz - Knock/Combustion Vibration Sensor 1 Circuit High Bank 1 -

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|P0328 MERCEDES-BENZ code comments

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