Mazda CX-5 engine oil leak issue resolved by replacing timing cover gasket under warranty on Mazda CX-5

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Mazda CX-5 owners report experiencing engine oil leaks due to various issues, including cracked cylinder heads, leaking head gaskets, or faulty gaskets and seals. Specific models, such as the 2018-2019 CX-5, have been noted for significant oil leaks caused by cracked cylinder heads. In some instances, owners find that their engines are burning oil or mixing oil with coolant, which may indicate a more serious issue like a leaking head gasket. To effectively resolve these oil leaks, the repair process often involves replacing the timing cover gasket. For those whose vehicles are still under warranty, having the timing cover gasket replaced can address the oil leak problem without incurring additional costs. It is crucial for owners to address oil leaks promptly to prevent further engine damage and ensure the vehicle's optimal performance and longevity.

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