Determine the exact cause of the turbocharger failure to ensure the issue does not recur after replacement.
Objective: To outline a set of critical checks to perform during turbocharger replacement in order to prevent recurring failures, ensure proper installation of the component, and guarantee the engine’s performance and longevity.
Before Installing the Turbo
Carefully disassemble the turbocharger, paying close attention to the position of each component, to ensure accurate and error-free reassembly.
During Turbo Installation
Protect the turbocharger piping from foreign objects to avoid irreversible damage
Thoroughly clean or, if needed, replace the oil feed and return lines
Check the diesel particulate filter (DPF) or catalytic converter for possible blockages
Never apply adhesives, silicone, or exhaust sealant to the oil inlet or outlet connections
Inspect the EGR valve — if excessively dirty, clean or replace it
Replace the engine oil and oil filter according to the manufacturer’s recommendations
Check the lubrication system and ensure the oil feed hose is not bent or damaged, as poor lubrication can cause instant turbo failure
Replace the air filter and fully clean its housing
Inspect the air intake pipes and replace them if they are damaged or worn
Before reinstalling the turbo, prime it with fresh oil
Manually rotate the turbine to ensure it spins freely before engine start-up
After Installing the Turbo
Start the engine
Let it idle for a few minutes without driving or revving
Turn off the engine normally, allowing the system to cool down gradually
During the first drive after turbo replacement, avoid sudden acceleration to allow the system to adapt smoothly
Final Note: To ensure the warranty on the repaired turbocharger remains valid, all the above instructions must be strictly followed.
