Vehicles using SKYACTIV-D 1.5 engine list:

Engine SKYACTIV-D 1.5

Symptoms:
- Rough idling and vibrations during engine start-up
- Loss of power and reduced fuel efficiency
- Excessive white or blue smoke from the exhaust
- Warning lights on the dashboard, such as the check engine light
- Unusual noises from the engine, including knocking or rattling

Diagnosis:
- Perform an OBD-II scan to identify specific fault codes related to the diesel particulate filter (DPF), EGR valve, or turbocharger
- Inspect the EGR valve for clogging or malfunction, as it is prone to carbon buildup
- Check the DPF for blockage, especially if the vehicle is frequently used for short trips that prevent proper regeneration
- Examine the turbocharger for signs of wear or damage, including oil leaks or shaft play
- Conduct a compression test to assess engine health and detect potential cylinder issues

Fixes:
- Clean or replace the EGR valve to restore proper exhaust gas recirculation and reduce emissions
- Perform a forced DPF regeneration or replace the DPF if cleaning is ineffective
- Repair or replace the turbocharger if damaged to restore engine performance
- Address any injector issues by cleaning or replacing faulty injectors to ensure efficient fuel delivery
- Update engine software if available to improve management of emissions and engine performance

Prevention:
- Use high-quality diesel fuel and adhere to recommended oil change intervals to maintain engine cleanliness
- Regularly drive the vehicle at highway speeds to allow the DPF to regenerate properly and avoid clogging
- Avoid frequent short trips that prevent the engine from reaching optimal operating temperature
- Schedule routine maintenance checks focusing on the EGR system, turbocharger, and fuel injectors
- Follow manufacturer guidelines for servicing intervals and use genuine parts for replacements to ensure reliability