Can the Engine Assembly Be Replaced for Oil Leakage During Warranty Period?
2 Answers
Generally, replacement is not allowed during the warranty period, and it is quite difficult to replace the entire assembly. Manufacturers and 4S shops usually prefer repair over replacement. Below are the common causes of engine oil leakage: 1. Oil pan gasket damage or loose screws causing oil leakage. 2. Oil drain plug gasket damage, missing, or looseness leading to oil leakage. 3. Improper installation, damage, or loose screws of the timing gear cover gasket causing oil leakage. 4. Engine support plate deformation or gasket sealing failure resulting in oil leakage. 5. Valve cover gasket sealing failure causing oil leakage. 6. Front crankshaft oil seal damage leading to oil leakage. 7. Rear crankshaft oil seal damage causing oil leakage.
When my car's engine was leaking oil during the warranty period, I immediately took it to the dealership for inspection. The staff said they would first conduct a diagnosis to determine whether it was a simple case of seal aging or an internal issue. It turned out to be just a damaged oil pan gasket, which was fixed without needing to replace the entire assembly. However, they mentioned that if there were major damage to the engine's core components or repeated repairs proved ineffective, they might consider replacing the entire assembly. The key point is that the warranty booklet states that only manufacturing defects leading to malfunctions are covered for free, while normal wear and tear is not. I recommend not delaying and getting an early assessment at the service center—if the issue is severe, you might qualify for a free replacement. While driving, always pay attention to dashboard warning lights and oil stains on the ground to prevent minor issues from escalating, which can save a lot of hassle. During each maintenance session, also remind the technician to inspect the oil system to avoid costly repairs after the warranty expires. In short, handling such issues within the warranty period is relatively easier, so don’t worry too much.
