FAULTBASE
Error CodesASKCars
© 2026 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
What are the most common reasons for a failed emissions test in a 2015 Volvo XC60? - Volvo XC60
Home/Cars/Volvo/XC60/First Generation (2008-2017)/What are the most common reasons for a failed emissions test in a 2015 Volvo XC60?

What are the most common reasons for a failed emissions test in a 2015 Volvo XC60?

Volvo XC60 First Generation (2008-2017)

Error Codes
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
4 min read
761 words

Problem Statement

Discover the common reasons for a failed emissions test in a 2015 Volvo XC60, including symptoms, diagnostic steps, and repair instructions.

Affected Component
Emissions System

Symptoms

  • •Poor fuel economy
  • •Engine misfires
  • •Rich or lean running condition
  • •Decreased engine performance
  • •Rattling noise from under the vehicle
  • •The CEL is illuminated on the dashboard
  • •High idle speed
  • •Rough idle or stalling
  • •Difficult starting
  • •Blue smoke from the exhaust
  • •Fuel smell near the vehicle

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8

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
  • •Multimeter
  • •Socket set for O2 sensor removal
  • •Infrared thermometer
  • •Jack and jack stands for vehicle access
  • •Smoke machine
  • •Fuel pressure gauge
  • •Basic hand tools

Additional Information

Affected Component
Emissions System
Difficulty
medium
Severity
medium
Tools Required
8 items

Related Faults

Loading...

Share this solution

Comments

Sign in to share your thoughts

Sign In

No comments yet

Be the first to share your thoughts

Back to Generation

Certainly! Here’s a detailed breakdown of the most common reasons for a failed emissions test in a 2015 Volvo XC60, along with their symptoms, diagnostic steps, tools required, and repair instructions.

Common Reasons for Emissions Test Failure
  1. Faulty Oxygen Sensors
  2. Malfunctioning Catalytic Converter
  3. Check Engine Light (CEL) Activated
  4. Vacuum Leaks
  5. Fuel System Issues
  6. Excessive Engine Oil Consumption
  7. Evaporative Emission System (EVAP) Leaks
1. Faulty Oxygen Sensors
Tools Required
  • OBD-II scanner
  • Multimeter
  • Socket set for O2 sensor removal

Repair Instructions

  1. If DTCs indicate a specific sensor, replace the faulty O2 sensor.
  2. Clear the codes using the OBD-II scanner.
  3. Test drive the vehicle and recheck for codes.
2. Malfunctioning Catalytic Converter
Tools Required
  • OBD-II scanner
  • Infrared thermometer
  • Jack and jack stands for vehicle access

Repair Instructions

  1. If the catalytic converter is clogged or damaged, replace it with a new unit.
  2. Ensure all exhaust connections are sealed properly to prevent leaks.
3. Check Engine Light (CEL) Activated
Tools Required
  • OBD-II scanner

Repair Instructions

  1. Address any issues indicated by the DTCs. This may involve replacing faulty components such as sensors or gaskets.
  2. Clear the codes and perform a test drive to ensure no new codes appear.
4. Vacuum Leaks
Tools Required
  • Smoke machine
  • Basic hand tools for hose replacement

Repair Instructions

  1. Replace or repair any damaged vacuum hoses or connectors.
  2. Clear any DTCs and retest emissions.
5. Fuel System Issues
Tools Required
  • Fuel pressure gauge
  • Basic hand tools

Repair Instructions

  1. If fuel pressure is low, check the fuel pump and filter for malfunction.
  2. Clean or replace clogged fuel injectors as necessary.
6. Excessive Engine Oil Consumption
Tools Required
  • Compression tester
  • Basic hand tools

Repair Instructions

  1. If excessive oil consumption is confirmed, inspect and replace piston rings or valve seals as necessary.
7. Evaporative Emission System (EVAP) Leaks
Tools Required
  • OBD-II scanner
  • Smoke machine (for leak detection)

Repair Instructions

  1. Repair or replace any damaged hoses or components in the EVAP system.
  2. Clear DTCs and retest emissions.
Conclusion

By following these diagnostic steps and repair instructions, you can effectively address the common reasons for a failed emissions test in a 2015 Volvo XC60. Always ensure to perform a final emissions test after repairs to confirm the issue has been resolved.