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P0705 on Mercedes-Benz GLE

Transmission Range Sensor Circuit Malfunction (PRNDL Input)

Factory diagnostic protocol and troubleshooting wire for fault code P0705 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)
High urgency level
Est. Repair Cost
$120 - $450 (DIY: $40 - $160)
Parts & Labor DIY
Check P0705 On Another Mercedes-Benz Model:
Diagnose P0705 on Specific GLE Model Year:

1. Symptoms of P0705 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 P0705, 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)
Vehicle will not crank/start in Park (starts only in Neutral) on Mercedes-Benz GLE (2.0L Turbo / 3.0L Turbo I6 (GLE 450 375HP) / 4.0L V8 GLE 580)
Gear indicator on dashboard (P R N D 1 2) is blank or displays wrong gear on Mercedes-Benz GLE (2.0L Turbo / 3.0L Turbo I6 (GLE 450 375HP) / 4.0L V8 GLE 580)
Transmission shifts harshly or goes into 3rd gear limp mode on Mercedes-Benz GLE (2.0L Turbo / 3.0L Turbo I6 (GLE 450 375HP) / 4.0L V8 GLE 580)
Reverse backup lights fail to illuminate 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%
Misaligned or faulty Transmission Range Sensor / Neutral Safety Switch (NSS) (Mercedes-Benz OEM Part)
25%
Corroded or water-logged connector on transmission side (Mercedes-Benz OEM Part)
12%
Stretched or misadjusted shift linkage cable (Mercedes-Benz OEM Part)
8%
Broken internal switch contacts (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
Check PRNDL Live Data

Move gear selector through all positions while monitoring scan tool TR PID to see which gear positions fail to register. 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 Shift Cable Alignment

Ensure the mechanical shift linkage fully clicks the transmission lever into the physical detent for Park and Neutral. on the Mercedes-Benz GLE equipped with 2.0L Turbo / 3.0L Turbo I6 (GLE 450 375HP) / 4.0L V8 GLE 580.

Required Tool: Pliers, Socket Set
03
Test Neutral Safety Switch Continuity

Use multimeter to check continuity across switch pins in Park, Reverse, Neutral, and Drive. 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 or Re-align Range Sensor

Loosen mounting bolts, use alignment pin to align sensor slot with transmission shaft in Neutral, torque bolts, or install new OEM sensor. on the Mercedes-Benz GLE equipped with 2.0L Turbo / 3.0L Turbo I6 (GLE 450 375HP) / 4.0L V8 GLE 580.

Required Tool: 10mm/12mm Sockets, Alignment Pin
05
Clear Trouble Codes and Verify Starting

Clear DTCs and confirm engine starts in Park and Neutral, reverse lights activate, and gear display is accurate. 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 (P0705)

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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
View on Amazon
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 P0705 FAQs

What causes code P0705 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), P0705 is most frequently caused by Misaligned or faulty Transmission Range Sensor / Neutral Safety Switch (NSS) or Corroded or water-logged connector on transmission side.

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 P0705?

Caution. Vehicle may not start in Park, backup lights may not work, and transmission may lock in Limp Mode. Given that P0705 carries a High severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.