Order before 15:00 on business days? Shipped the same day!

Fast & reliable shipping throughout Europe

Expert customer service with professional advice

Mega Sale: Discounts up to 75%! While supplies last!

View Offers
Discover similar products: OBDSTAR, Vehicle OBD Adapter Cables & Adapters
OBDSTAR  |  SKU: M085

OBDSTAR (M085) | MTU 12-pins OBD – 16-pins OBD2 Adapter Cable | Motorboat

€61,95 incl.
€51,20 excl.

Warranty directly via AsTools

We handle warranty cases ourselves, quickly and without involving the manufacturer. Thanks to our own parts inventory and technical expertise, we can usually assist you immediately. Only in exceptional cases do we still send the product to the supplier.

2 years warranty on all products

All our products come with a 2-year factory warranty. This ensures you long-lasting quality and service.

Easy returns

You can easily request your return through your account. We will send you the return label by email. Return shipping costs are your responsibility.

Professional customer service

Our experts are ready to help you quickly and professionally, both online and in our physical store. Questions? Feel free to contact us!

The OBDSTAR M085 connects the 12-pin round MTU diagnostic connector on the engine to a 16-pin OBD2 (J1962) port for your OBDSTAR diagnostic equipment. The engine-side connector features a cylindrical housing with a locking ring, characteristic of MTU systems in marine environments.

MTU marine engines in motorboat applications do not have a standard OBD2 port. The cable converts the pin configuration of the 12-pin connector to the corresponding OBD2 pins, ensuring communication protocols such as CAN-bus or K-line reach the diagnostic reader correctly. What the cable unlocks is the engine management system of the MTU engine: fault memory, engine parameters and system data. The cable is designed exclusively for OBDSTAR diagnostic readers and programmers, and the coverage of that device determines what is actually available.

KEY BENEFITS

✔Direct to the 12-pin connector — connection to a standard OBD2 port is established without additional adapters.
✔Cylindrical locking connector — the locking ring on the engine side keeps the connection mechanically stable, suited to the marine environment.
✔CAN-bus and K-line — both protocols are supported, making fault memory and engine parameters accessible.
✔Tailored for MTU marine engines — the pin configuration follows the layout of the 12-pin MTU connector.

IMPORTANT NOTES

✕12-pin version only — MTU also uses a 10-pin diagnostic connector; that requires a different cable.
✕Limited to marine engine environments — diagnostics of road transport or industrial vehicles fall outside the scope of application.
✕OBDSTAR only — the cable is not compatible with diagnostic equipment from other manufacturers.
✕Cable without independent coverage — available functions are determined by the software of the connected OBDSTAR device.

Applications and functionality

Via the 12-pin connector you access the engine management system of the MTU marine engine.

Control units you can reach

  • Engine management system: The engine control of the MTU marine engine behind the 12-pin round connector.
  • Other modules: Which additional units are accessible on board depends on the installation configuration.

What you can do

  • Read fault memory: Retrieve stored fault codes from the engine management system to trace faults in engine components.
  • Clear fault codes: Remove stored codes after diagnosis and repair, with the cable providing the communication link.
  • Monitor live data: Read real-time engine parameters such as engine speed, temperature and pressure via the CAN-bus or K-line connection.
  • Marine engine system diagnostics: Access to the engine system of MTU engines in marine engine application via the 12-pin round connector.
  • Please note: What you can actually perform depends on the OBDSTAR device and its associated software.

Compatible vehicles and applications

The 12-pin round MTU connector is the determining factor, not the engine type. Compatibility is based on available source data; specific engine types with production years are not listed.

  • MTU (Motoren und Turbinen-Union): Marine engines with 12-pin round OBD connector, marine engine application
💡
Good to know: The 12-pin MTU diagnostic connector is typically located directly on or near the engine management system of the marine engine; consult the documentation of the specific MTU engine type for the exact location. Verify that the MTU connector has twelve pins and not ten before ordering.

Package contents

  • 1x OBDSTAR (M085) | MTU 12-pin OBD – 16-pin OBD2 Adapter Cable | Marine Engine

Technical specifications

General

The brand of the cable or adapter. It often has to match the brand of your diagnostic tool.Brand
OBDSTAR
The type of product: a separate adapter cable, an adapter without a cable or a complete set.Product type
Adapter cable

Suitable for

The brand of diagnostic tool the cable works with. A cable for one brand usually does not fit a tester of another brand.Compatible diagnostic tool
  • OBDSTAR
Whether the cable needs a separate power connection, for example via battery clamps. A passive cable works without one.Separate power supply required

Connections

The connector that plugs into the diagnostic port of the vehicle or machine. It must fit exactly.Vehicle-side connector
12-pin OBD
The connector on the side of your diagnostic tool or interface. Usually a 16-pin OBD2 connector.Tool-side connector
16-pin OBD2
The data lines through which the cable passes signals. The vehicle and the tester must use the same communication method.Communication
  • K-line
  • CAN-bus

Size and weight

The weight of the cable or adapter.Weight
0.1 kg
Control units
Engine management system

Other specifications

Application
MTU 12-pin round diagnostic connector for marine engines
Segment
Marine Engine
Supported Manufacturers
MTU (Motoren und Turbinen-Union)
Model Range
Not limited by year of manufacture; determined by the presence of the 12-pin round MTU connector
Required to Use
OBDSTAR diagnostic device with marine coverage, such as the Marine Master or an iScan variant
Additional Requirements
None; the cable operates without adapter or power supply