AutoCodes – Audi – P0116 Audi

P0116 Audi Code - Engine Coolant Temperature Circuit Range/Performance

Quick Answer

The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. Common causes include Low engine coolant level, Faulty Engine Coolant Temperature (ECT) sensor, Faulty engine coolant thermostat. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0116 Audi indicates Engine Coolant Temperature Circuit Range/Performance.
Common causes: Common causes include Low engine coolant level, Faulty Engine Coolant Temperature (ECT) sensor, Faulty engine coolant thermostat.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 25,486

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0116 Audi Description

The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. The sensor modifies a voltage signal from the Engine Control Module (ECM). The modified signal returns to the ECM as the engine coolant temperature input. The sensor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases.

OBDII Code P0116 Audi - Engine Coolant Temperature Circuit Range/Performance - AutoCodes.com — P0116 Audi Code - Engine Coolant Temperature Circuit Range/Performance

What does this mean?

What are the Possible Causes of the DTC P0116 Audi?

Low engine coolant level
Faulty Engine Coolant Temperature (ECT) sensor
Faulty engine coolant thermostat
Engine Coolant Temperature (ECT) sensor harness is open or shorted
Engine Coolant Temperature (ECT) sensor circuit poor electrical connection

How to Fix the DTC P0116 Audi?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0116 Audi code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0116 Audi code?

Need more information on how to fix the P0116 Audi code? Get Access to Factory Service Manuals

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0116 Audi Code

1. What are the common symptoms of OBDII code P0116 in an Audi?

- Common symptoms include issues with engine starting, poor fuel economy, overheating, and inaccurate temperature gauge readings.

2. What are the possible causes of OBDII code P0116 in an Audi?

- Possible causes may include a faulty engine coolant temperature sensor, damaged wiring or connectors, low coolant levels, or a malfunctioning thermostat.

3. How can I diagnose the cause of OBDII code P0116 in my Audi?

- You can diagnose the issue by checking the coolant level, inspecting the sensor and its wiring for damage, testing the sensor's resistance, and scanning for any related trouble codes.

4. Can a DIY enthusiast repair OBDII code P0116 in an Audi?

- Yes, depending on the exact cause, a DIY enthusiast can potentially repair this code by replacing the coolant temperature sensor, fixing damaged wiring, or addressing low coolant levels.

5. Is it safe to continue driving with OBDII code P0116 in my Audi?

- It is not recommended to drive with this code as it can lead to engine overheating, poor performance, and potential damage. It's best to address the issue promptly.

6. How much does it typically cost to repair OBDII code P0116 in an Audi?

- The cost of repair can vary depending on the exact cause and whether you choose to do it yourself or take it to a professional. Costs can range from around $50 for a sensor replacement to a few hundred dollars for more extensive repairs.

7. Can a malfunctioning thermostat trigger OBDII code P0116 in an Audi?

- Yes, a malfunctioning thermostat can cause the engine coolant temperature to be out of range, triggering the P0116 code. It's important to check and replace the thermostat if necessary.

8. Will resetting the OBDII code P0116 in my Audi make the issue go away?

- Simply resetting the code without addressing the underlying cause will not fix the problem. It's crucial to diagnose and repair the issue to prevent it from reoccurring.

9. How long does it take to repair OBDII code P0116 in an Audi?

- The repair time can vary depending on the cause and complexity of the issue. Simple fixes like sensor replacements can be done in under an hour, while more involved repairs may take longer.

10. Can a dirty or corroded connector cause OBDII code P0116 in an Audi?

- Yes, a dirty or corroded connector can disrupt the signal from the coolant temperature sensor, leading to the P0116 code. It's important to check and clean connectors during diagnosis.