how to fix P0137 code on Volkswagen Golf Seventh Generation (2013-2020)

Volkswagen Golf Eighth Generation (2020-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

Error Code: P0137

3 min read

484 words

Problem Statement

Learn how to diagnose and fix P0137 code in Volkswagen Golf (2013-2020). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Error Code

P0137

Affected Component

Exhaust System

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Allow the engine to cool completely before starting work.
•Disconnect the battery before working on electrical components.

Symptoms

•Check engine light illuminated
•Poor fuel economy
•Engine stalling or hesitation
•Increased emissions
•Rough idle

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to confirm P0137 and check for any related codes.
2
Inspect the wiring and connector of the Bank 1 Sensor 2 oxygen sensor for damage or corrosion.
3
Check for exhaust leaks upstream of the oxygen sensor, as leaks can affect readings.
4
Measure the voltage output of the oxygen sensor using a multimeter while the engine is running.
5
Inspect the sensor itself for any signs of contamination or wear.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•OBD-II scanner
•Oxygen sensor socket
•Socket wrench
•Multimeter
•Wire brush

Parts Required

•Bank 1 Sensor 2 oxygen sensor (specific to the vehicle model)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to confirm P0137 and check for any related codes.
2
Inspect the wiring and connector of the Bank 1 Sensor 2 oxygen sensor for damage or corrosion.
3
Check for exhaust leaks upstream of the oxygen sensor, as leaks can affect readings.
4
Measure the voltage output of the oxygen sensor using a multimeter while the engine is running.
5
Inspect the sensor itself for any signs of contamination or wear.

Solution

1. Preparation

Gather tools and parts needed.
Ensure the vehicle is parked on a level surface and the engine is cool.
Disconnect the battery to ensure safety while working on electrical components.

2. Remove the Oxygen Sensor

Locate the Bank 1 Sensor 2 oxygen sensor (usually found in the exhaust).
Use a socket wrench with an oxygen sensor socket to carefully unscrew the sensor from the exhaust pipe.
Disconnect the electrical connector from the sensor.

3. Inspect and Clean

Inspect the sensor threads and the exhaust pipe for any damage or carbon buildup.
Clean the exhaust threads with a wire brush if necessary to ensure a good seal.

4. Install New Oxygen Sensor

Apply anti-seize compound to the threads of the new oxygen sensor (if not pre-coated).
Screw the new sensor into place by hand, then tighten with the sensor socket to the manufacturer's specified torque (usually around 30 ft-lbs).
Reconnect the electrical connector securely.

5. Reconnect Battery and Test

Reconnect the battery cables.
Start the engine and allow it to reach operating temperature. Monitor for any warning lights.
Use the OBD-II scanner to clear the P0137 code and check if it returns.