After replacing the DEF pump, don't drive away immediately.
These crucial steps will help ensure the system functions correctly and prevent future problems:
Fill the DEF tank: First, fill the reservoir to ensure the system has enough fluid to operate.
Check the line connections: Carefully inspect all pipes and connectors to ensure they are installed correctly and that nothing is missing.
Perform the bleeding procedure: This is the most important step! You must remove all air from the lines; otherwise, the pump will run dry and be damaged. Refer to your vehicle's service manual for specific instructions.
Perform a system test: Start the vehicle and check the dashboard for any DEF-related warning lights. Also, listen for any unusual noises from the pump.
If problems persist after these steps, it's recommended to visit a professional repair shop to have them read the fault codes using diagnostic equipment for a more accurate diagnosis.
After replacing the DEF pump, don't drive away immediately.
These crucial steps will help ensure the system functions correctly and prevent future problems:
Fill the DEF tank: First, fill the reservoir to ensure the system has enough fluid to operate.
Check the line connections: Carefully inspect all pipes and connectors to ensure they are installed correctly and that nothing is missing.
Perform the bleeding procedure: This is the most important step! You must remove all air from the lines; otherwise, the pump will run dry and be damaged. Refer to your vehicle's service manual for specific instructions.
Perform a system test: Start the vehicle and check the dashboard for any DEF-related warning lights. Also, listen for any unusual noises from the pump.
If problems persist after these steps, it's recommended to visit a professional repair shop to have them read the fault codes using diagnostic equipment for a more accurate diagnosis.