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Home/DTC Codes/Audi/A6/2014-2014 3.0L Supercharged V6/P0118
P0118

ECT Sensor 1 Circuit High Input

2014-2014 Audi A6 3.0L Supercharged V6

High SeverityPowertrainGeneric (SAE)

The 2014 Audi A6 is equipped with a 3.0L V6 engine. Below you'll find detailed p0118 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.

Description

The ECT sensor voltage is higher than expected, indicating very low temperature or open circuit.

Symptoms

  • Check Engine Light
  • Rich running at operating temp
  • Poor fuel economy
  • Fans not coming on

Common Causes

  • Open circuit
  • Disconnected sensor
  • Faulty sensor
  • Corroded connector

Diagnostic Steps

  1. Test sensor resistance
  2. Check for open circuits
  3. Inspect connector

Repair Notes

Repair open circuit or replace sensor. CAUTION: Engine may overheat if fans do not activate.

Related Codes

P0115Engine Coolant Temperature (ECT) Sensor 1 CircuitP0117ECT Sensor 1 Circuit Low Input

Other Powertrain Codes

P0118 on Other Vehicles

Audi A3

1996-1996 1.6L I4

Audi A3

1996-1996 1.8L Turbo I4

Audi A3

1997-1997 1.6L I4

Audi A3

1997-1997 1.8L Turbo I4

Audi A3

1998-1998 1.6L I4

Audi A3

1998-1998 1.8L Turbo I4

Audi A3

1999-1999 1.6L I4

Audi A3

1999-1999 1.8L Turbo I4 Quattro

Common Questions

What does code P0118 mean on a 2014-2014 Audi A6?

P0118 stands for "ECT Sensor 1 Circuit High Input". The ECT sensor voltage is higher than expected, indicating very low temperature or open circuit.

What are the symptoms of P0118 on a Audi A6?

Common symptoms of P0118 include: Check Engine Light, Rich running at operating temp, Poor fuel economy, Fans not coming on.

What causes P0118 on a 2014-2014 Audi A6?

Common causes of P0118 include: Open circuit, Disconnected sensor, Faulty sensor, Corroded connector.

Last updated: March 2026

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