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P0330 on Mercedes-Benz GLE

Knock Sensor 2 Circuit Malfunction (Bank 2)

Factory diagnostic protocol and troubleshooting wire for fault code P0330 specifically for the Mercedes-Benz GLE (2020–2026, 2.0L Turbo / 3.0L Turbo I6 (GLE 450 375HP) / 4.0L V8 GLE 580).

Verified OEM Telemetry & Field Repair Tree
Mercedes-Benz GLE2020–2026
Mercedes-Benz GLE
SUV2.0L Turbo / 3.0L Turbo I6 (GLE 450 375HP) / 4.0L V8 GLE 580
Reliability
Sensor Voltage Ref
0.1V – 5.0V Ref
GLE SAE Mode $01
ECU Network Bus
500 kbps CAN-FD
ISO 15765-4 Compliant
Drivability Status
Drivable (Short Trip)
Medium urgency level
Est. Repair Cost
$180 - $650
Parts & Labor DIY
Check P0330 On Another Mercedes-Benz Model:
Diagnose P0330 on Specific GLE Model Year:

1. Symptoms of P0330 on Mercedes-Benz GLE

When the Engine Control Module (ECM/PCM) on your Mercedes-Benz GLE (2.0L Turbo / 3.0L Turbo I6 (GLE 450 375HP) / 4.0L V8 GLE 580) logs fault code P0330, drivers commonly observe:

Check Engine Light on on Mercedes-Benz GLE (2.0L Turbo / 3.0L Turbo I6 (GLE 450 375HP) / 4.0L V8 GLE 580)
Sluggish acceleration and power loss on Mercedes-Benz GLE (2.0L Turbo / 3.0L Turbo I6 (GLE 450 375HP) / 4.0L V8 GLE 580)
Failed emissions on Mercedes-Benz GLE (2.0L Turbo / 3.0L Turbo I6 (GLE 450 375HP) / 4.0L V8 GLE 580)
Mercedes-Benz GLE OBD-II Port Location
The 16-pin diagnostic connector is located Driver footwell directly above parking brake pedal. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Mercedes-Benz GLE

Historical warranty claims and technical repair bulletins for Mercedes-Benz GLE point to the following failure distribution:

55%
Defective Bank 2 knock sensor (Mercedes-Benz OEM Part)
25%
Rodent-chewed wiring under intake manifold (Mercedes-Benz OEM Part)
12%
Corroded harness connector (Mercedes-Benz OEM Part)
* Source: Synthesized from NHTSA ODI field repair telemetry and verified OEM Technical Service Bulletin (TSB) repair tree frequency percentiles for Mercedes-Benz GLE.

3. Step-by-Step DIY Repair Guide for Mercedes-Benz GLE

01
Scan and Record Freeze Frame Telemetry

Connect an OBD-II scan tool and record freeze frame sensor telemetry for code P0330 to note engine RPM, load, and voltage when the fault triggered. on the Mercedes-Benz GLE equipped with 2.0L Turbo / 3.0L Turbo I6 (GLE 450 375HP) / 4.0L V8 GLE 580.

Required Tool: OBD-II Scanner
02
Inspect Related Wiring Harness & Connectors

Inspect the electrical connector and wiring harness related to P0330 for chafing, corrosion, moisture, or pin push-out. on the Mercedes-Benz GLE equipped with 2.0L Turbo / 3.0L Turbo I6 (GLE 450 375HP) / 4.0L V8 GLE 580.

Required Tool: Flashlight, Multimeter
03
Test Component Resistance & Voltage Supply

Measure circuit voltage supply (12V B+ or 5V reference) and sensor/actuator resistance according to factory repair manual specifications. on the Mercedes-Benz GLE equipped with 2.0L Turbo / 3.0L Turbo I6 (GLE 450 375HP) / 4.0L V8 GLE 580.

Required Tool: Digital Multimeter
04
Replace Defective Component

Install a new OEM-grade replacement part, torque fasteners to factory spec, and ensure electrical locking tabs click firmly. on the Mercedes-Benz GLE equipped with 2.0L Turbo / 3.0L Turbo I6 (GLE 450 375HP) / 4.0L V8 GLE 580.

Required Tool: Hand Tool Socket Set, Torque Wrench
05
Clear Trouble Codes & Complete Drive Cycle

Clear all stored DTCs from vehicle memory and perform an OBD-II drive cycle to confirm the diagnostic monitor resets to 'Ready'. on the Mercedes-Benz GLE equipped with 2.0L Turbo / 3.0L Turbo I6 (GLE 450 375HP) / 4.0L V8 GLE 580.

Required Tool: OBD-II Scanner
Recommended Parts & Testing Tools

Equipment for Diagnosing Mercedes-Benz GLE (P0330)

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Direct-Fit Replacement Part

Mercedes-Benz GLE OEM Replacement Sensor

4.7 / 5.0 (Verified Fit)

Direct-fit replacement assembly engineered to OEM tolerances for Mercedes-Benz GLE.

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Sensor Signal Voltage Meter

AstroAI Auto-Ranging Digital Multimeter

4.6 / 5.0 (Best Seller)

Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.

$29.99 Prime
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Top Mobile OBD-II Scanner

BlueDriver Bluetooth Pro OBDII Scan Tool

4.7 / 5.0 (50,000+ Reviews)

Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.

Compare OEM & Aftermarket Replacement Sensors for Mercedes-Benz GLEVerified direct-fit pricing from Denso, Bosch, Motorcraft, and ACDelco on Amazon.
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Other Common Fault Codes on Mercedes-Benz GLE

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Mercedes-Benz GLE:

4. Mercedes-Benz GLE P0330 FAQs

What causes code P0330 to trigger on a Mercedes-Benz GLE?

On the Mercedes-Benz GLE (2.0L Turbo / 3.0L Turbo I6 (GLE 450 375HP) / 4.0L V8 GLE 580), P0330 is most frequently caused by Defective Bank 2 knock sensor or Rodent-chewed wiring under intake manifold.

Where is the OBD-II port located on my Mercedes-Benz GLE?

On the Mercedes-Benz GLE, the 16-pin DLC diagnostic connector is located Driver footwell directly above parking brake pedal. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.

Can I safely drive my Mercedes-Benz GLE with code P0330?

Caution. ECU retards ignition timing, reducing acceleration power. Given that P0330 carries a Medium severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.