For superyacht captains, engineers, and owners operating Caterpillar engines and generators, accurate and timely inspections are the foundation of operational reliability. As an authorised Caterpillar dealer, we at MOTORTEC provide specialised support for marine engine inspections, diagnostics, and CAT yacht engine repairs across the French Riviera, operating in popular yachting destinations such as Monaco, Antibes, La Ciotat, Cannes, and more.
Combining technical precision with hands-on experience in the yachting sector, we deliver inspections and repairs that align fully with Caterpillar standards, ensuring every system continues to perform under pressure.
Find out more about our CAT maintenance service
Yacht Engine Health Starts with Inspection
Our approach to engine care begins with thorough inspections. Every service is based on Caterpillar’s official maintenance guidelines and adapted to the exact serial number of the client’s engine or generator. This level of detail ensures that nothing is missed and that components are checked at their correct service intervals.
In every marine engine inspection, technicians examine system performance, identify early signs of wear, and evaluate each unit’s current condition in relation to its expected operational lifespan. Additional client requirements are factored in to customise the process, making every inspection both precise and practical.
This attention to preventive care reduces the risk of failure and supports long-term performance and cost efficiency.

CAT Marine Engine Diagnostics and Repairs
When faults of inefficiencies are suspected, our trained technicians perform advanced marine engine diagnostics to identify and isolate the root cause. Common procedures like:
- Engine performance evaluation via sea trials
- Parameter recordings at various stages patterned to the original bench testing in the factory
- Generator load testing
- Internal inspections using a videoscope and a borescope tool
- Cylinder CUTOUT testing
- Oil / Coolant Analysis
If any problems are discovered, we carry out yacht engine repairs, using genuine CAT parts if necessary, either on board or at our fully equipped service centre in Cannes. Every one of our technicians is a certified Caterpillar technician, ensuring that the repair meets CAT’s engineering and safety standards.
Check out our spare parts shop
Periodic Marine and Pre-Purchase Surveys
We also support our clients with periodic marine surveys that comply with Classification Society standards (Lloyd’s, Bureau Veritas, RINA, Germanischer Lloyd, etc.). These inspections include everything from fluid analysis to visual checks of key components. For buyers assessing a vessel before acquisition, pre-purchase surveys offer a full overview of the CAT engine and generator condition.
Our survey process is designed to give owners and buyers a detailed understanding of engine and generator health, helping prevent unexpected costs and providing peace of mind.

Authorised CAT Marine Dealers
As a trusted Caterpillar technician team and authorised dealer, we combine preventive strategy with technical depth. Our emphasis on detailed Caterpillar marine engine inspections, quick diagnostics and repairs, and yacht engine surveys makes us the go-to provider for CAT-powered yachts across the South of France.
Whether you’re maintaining, troubleshooting, or preparing to purchase a vessel, we provide the expert support you need.
Contact Motortec for your CAT engine inspection

