Diehl Marine Services GmbH

Our Services

Experts in Motion – Powered by Experience and Precision

Based in Hamburg and Istanbul, we are a globally active team with decades of combined experience in marine engineering.
Our strategically chosen locations and strong international network allow us to respond quickly to any challenge, wherever it arises.

We specialize in mechanical, electrical, and navigational solutions for commercial vessels, offering customized repair strategies and hands-on execution. With modern tools, deep technical understanding, and a commitment to efficiency, we get the job done, the right way.

Your success is our mission.

Fuel Injection Valve Refurbishment

Trust our experts to refurbish your fuel injection valves to ensure optimal fuel efficiency and performance of your marine engines.

Cylinder Liner Honing up to 700mm

Benefit from our advanced honing techniques to maintain the integrity and smooth operation of cylinder liners up to 700mm in diameter.

Valve and Valve Seat Grinding

Enhance the sealing and performance of your engine valves with our professional grinding services, ensuring efficient combustion and reduced emissions.

Shaft & Propeller Services

Discover top-notch Shaft & Propeller Services at Diehl Marine Services GmbH, where we provide comprehensive technical support, checks, and troubleshooting for servo systems and hydraulic coupling surfaces. Our team of experts is dedicated to ensuring the smooth operation and efficiency of your marine equipment.

Engine 2&4 Stroke Inspection

we specialize in providing thorough and detailed inspections for both types of engines, ensuring optimal performance and reliability for your marine vessels.Our team of experienced technicians utilizes advanced diagnostic tools and techniques to conduct in-depth inspections of 2 and 4 Stroke engines.

3D Laser Scanning + Retrofit Solutions

Leveraging cutting-edge 3D scanning and CAD techniques, we offer innovative solutions tailored to meet the unique requirements of each project. Our utilization of 3D scanning technology allows us to accurately capture the existing construction details of vessels, enabling precise retrofit engineering for installations such as Ballast Water Treatment (BWT) and scrubber systems.

Piston Reconditioning

Extend the lifespan of your pistons with our reconditioning services, addressing wear and damage to restore peak performance. directly on site in Istanbul

Ship Spare Parts
l

At Diehl Marine Services, we don’t just repair and maintain your vessel’s engine room — we also supply a full range of genuine and OEM spare parts for all major marine machinery and systems.

Onboard Repair-Services

With our experienced engineers and technicians, supported by advanced equip-ment, we are able to carry out inspections, supervisions, and complete overhauls on board.Thanks to a versatile team of over 40 specialized professionals, we can perform all types of repairs directly on your vessel - from main engines, pumps, gearboxes, and separators to welding or retrofit work. Fast, efficient, and tailored to your needs.

Why Us

Strategic Locations. Worldwide Response.

Wherever your vessel needs support, we’re ready. Our operations are built for maximum flexibility and global mobility.

Hamburg&Istanbul – At the Heart of Key Shipping Routes

With strategically placed bases in Hamburg and Istanbul, we’re positioned to respond quickly across Europe, the Middle East, and beyond.

Mobile Repair Teams – Onboard. On Time.

Our experienced technicians can be dispatched on short notice for onboard repairs worldwide in port or at sea.

Built for Global Operations

From emergency deployments to scheduled overhauls, our network and logistics are designed for fast action across international waters.

We serve everywhere you sail.

Real People. Real Solutions.

Our Hamburg-based office ensures that you're always just a call or meeting away from expert advice and fast decision-making, no long waits, no offshore delays. Having a team on-site means faster response times, better coordination, and a deeper understanding of your technical and operational needs.

Proven Performance. Trusted Worldwide.

Choosing the right partner for ship repairs means putting your vessel and your schedule in capable hands. Here’s why clients around the world rely on us:

Quality Meets Fair Pricing

We combine top-tier workmanship with fair, transparent rates because long-term partnerships are built on trust, not hidden costs.

Efficient, Fast Execution

Time is critical in maritime operations. Our experienced teams work with precision and speed to minimize downtime and keep you on course.

Deep Technical Know-How

From main engines to navigation systems, our specialists bring decades of combined experience across all areas of marine engineering.

Modern Tools. Smarter Solutions.

We invest in advanced diagnostics, mobile equipment, and continuous training to deliver future-ready repair services right where you need them.