AUTOOL Mercedes-Benz 38-Pin to 16-Pin 42cm OBD2 Adapter Cable
US$16.00
- Mercedes 38-Pin to 16-Pin
- 42 cm / 7 mm Cable
- Copper Core + Nylon Exterior
- Mercedes 38-Pin to 16-Pin: Connect a Mercedes-Benz 38-pin diagnostic interface to a compatible 16-pin tool through this passive adapter.
- 42 cm / 7 mm Cable: Add 420 mm of reach with a reinforced 7.00 mm cable body.
- Copper Core + Nylon Exterior: Support signal routing with all-copper wiring and a reinforced flexible nylon exterior.
- Mercedes 38-Pin to 16-Pin: Connect a Mercedes-Benz 38-pin diagnostic interface to a compatible 16-pin tool through this passive adapter.
- 42 cm / 7 mm Cable: Add 420 mm of reach with a reinforced 7.00 mm cable body.
- Copper Core + Nylon Exterior: Support signal routing with all-copper wiring and a reinforced flexible nylon exterior.
- 3-Year Warranty Main unit 3 years · Accessories 1 year
- 90-Day Returns Eligible returns within 90 days
- Official Store Genuine products · Direct support
AUTOOL Mercedes Adapter · 38-Pin to 16-Pin, 42 cm
Connect a Mercedes 38-Pin Port to a 16-Pin Tool
Connect a Mercedes-Benz 38-pin diagnostic interface to a compatible 16-pin tool with 42 cm of reinforced copper-core reach. The adapter routes the existing signals, while vehicle coverage and functions come from the connected scan tool.
- Mercedes 38-Pin to 16-Pin Route
- 42 cm Reinforced Cable
- Copper-Core Conductors
- Passive Adapter
- Single-Cable Package
Key Features
Route the 42 cm Legacy-Port Adapter
38 Pin To 16 Pin Adapter
This product is not a diagnostic scanner. It must be used together with a compatible diagnostic tool.
Connects a Mercedes-Benz 38-pin diagnostic interface to a compatible 16-pin OBD2 diagnostic tool. It adapts the connector shape; the scanner must still support the target vehicle system.
Reinforced Nylon Outer Layer
The strengthened nylon material helps improve wear resistance, flexibility, waterproof protection, high-temperature resistance, and anti-aging performance for daily workshop handling.
All-Copper Wire Core
The all-copper internal wire structure helps achieve stable and reliable data transmission between the vehicle interface and the diagnostic tool.
Thicker 7.00mm Cable
The AUTOOL OBD cable uses a 7.00mm diameter cable, thicker than ordinary 5.00mm OBD cables shown in the comparison material.
135g Reinforced Build
The cable weighs about 135g, compared with ordinary 80g cable examples shown in the product material, helping provide a stronger hand feel and protection layer.
Flexible Workshop Use
The 420mm / 16.53in cable length helps extend the connection between the vehicle diagnostic port and the scan tool without adding excessive cable bulk.
Braided Cable Specifications
The reinforced nylon exterior protects the flexible cable during everyday handling, with a net weight of about 135g.
42cm Diagnostic Reach
The 420mm cable extends the connection while keeping the setup compact, with a reinforced 7.00mm cable body.
Passive Adapter Connection
Routes the stated legacy connector pins to a compatible 16-pin diagnostic tool; the adapter adds no scan functions or protocol conversion.
Connection and Fit Notes
Align the connector correctly before plugging it in. Do not force it into an incompatible or damaged diagnostic port.
3 Years Warranty Support
Main unit: 3-year warranty. Standard accessories: 1-year warranty. Warranty Policy.
How to Use
Connect, Route and Check Communication
Confirm The Vehicle Port
Identify the exact vehicle connector, year, and pinout; inspect it for damage.
Confirm The Tool Chain
Match the scanner, software, protocol, target module, and required authorization to the Mercedes-Benz vehicle before connecting the adapter.
Connect Safely
Follow the vehicle and tool procedure, align connectors correctly, and never force a mismatched plug.
Route Without Strain
Position the cable away from pedals, sharp edges, heat, moving parts, and pinched trim.
Verify Communication
Run the intended read-only connection check first. If communication changes, remove added devices or the extension and compare direct connection.
Safety & Compatibility
Check Pin Fit, Routing and Power Limits
Cable Function
Use the cable for physical connection and routing; protocol and diagnostic functions come from the vehicle and connected tool.
Match the Pinout and Tool
Match the connector and pin routing to the vehicle and diagnostic tool.
Vehicle Movement
Keep all cable and device parts clear of pedals, steering, seat tracks, doors, and driving controls.
Electrical Load
Do not attach unknown or high-current devices to vehicle diagnostic power. Follow the vehicle and tool current limits.
Disconnect If Unstable
If a tool drops connection, overheats, resets, or changes vehicle behavior, stop and return to a known direct connection.
Care and Safety Notes
The cable material is promoted as waterproof and durable, but the connector pins should still be kept clean, dry, and free from debris before use.
Specifications
Confirm Interface, Length and Quantity
| Specification | Value |
|---|---|
| Length | 42 cm |
| Connector Route | Mercedes-Benz 38-pin → 16-pin diagnostic tool |
| Package Quantity | 1 adapter cable |
| Function | Passive physical extension / pin routing; no protocol conversion |
Manual & Support
Confirm Port, Pinout and Tool Fit
Manual Download Center
Visit the manual download center for connected-tool guidance, then confirm Mercedes 38-pin fit, 16-pin connection and signal compatibility, with safe-use and troubleshooting guidance.
Package Contents
One Mercedes Diagnostic Adapter Cable
- Included Cable1 adapter cable; 42 cm; Mercedes-Benz 38-pin → 16-pin diagnostic tool.
- Not IncludedDiagnostic scanner, software, licenses, vehicle, and unlisted adapters are not included.
FAQs
Mercedes Adapter Fit and Function Questions
Is This Cable A Diagnostic Scanner?
This 38-pin-to-16-pin adapter connects the vehicle port to a compatible diagnostic scanner; the scanner performs the diagnostic functions.
Which Vehicle Interface Is This Cable Designed For?
It is designed for Mercedes-Benz vehicles equipped with a 38-pin car diagnostic interface. Confirm your vehicle diagnostic port before ordering.
What Connector Direction Does It Use?
This male-to-female adapter cable connects a 38-pin male plug to a 16-pin OBD2-style female socket for a compatible scan tool.
Does This Cable Convert Old Benz Systems To Standard OBD2?
The adapter changes the physical connection. Choose a scanner that supports the Mercedes-Benz model, communication protocol, and system you need to test.
What Diagnostic Tool Should I Use With This Cable?
Use a diagnostic tool that supports the target Mercedes-Benz vehicle, year, control unit, and diagnostic protocol. The cable only helps connect the 38-pin vehicle port to the 16-pin tool side.
What Are The Cable Length And Connector Dimensions?
The cable length is 420mm / 16.53in. The 16-pin connector is about 40mm / 1.57in wide, and the 38-pin round connector is about 33mm / 1.3in in diameter.
What Material Is The Cable Made From?
The cable uses reinforced nylon outer material and an all-copper wire core. The product material highlights flexibility, waterproof protection, high-temperature resistance, anti-aging performance, and double protection.
How Is This Cable Different From Ordinary OBD Cables?
The product comparison shows a 135g AUTOOL reinforced nylon cable and a 7.00mm cable diameter, compared with ordinary cable examples showing 80g weight and 5.00mm cable diameter. The reinforced nylon material is designed to reduce cracking during normal use.
What Should I Check Before Ordering?
Check that your vehicle has a Mercedes-Benz 38-pin diagnostic interface, confirm your diagnostic tool has the correct 16-pin connection, and confirm that your scanner software supports the vehicle model and diagnostic system.
How Long Is The Warranty?
Main unit: 3-year warranty. Standard accessories: 1-year warranty. Warranty Policy.
Does This Passive Adapter Convert Protocols?
Use the adapter for physical reach and connector routing. Available functions depend on the vehicle pinout, scanner, software, protocol, and authorization.
Does The Adapter Convert The Vehicle Protocol?
The adapter routes the legacy vehicle connector to a 16-pin tool connection. Match the connected tool to the vehicle, protocol, module, and task.
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