AUTOOL BMW 20-Pin to 16-Pin 40cm OBD2 Adapter Cable
US$16.00
- BMW 20-Pin to 16-Pin
- 40 cm / 7 mm Cable
- Copper Core + Nylon Exterior
- BMW 20-Pin to 16-Pin: Route a matching BMW 20-pin diagnostic socket to a compatible 16-pin OBD2 tool through this passive adapter.
- 40 cm / 7 mm Cable: Add 400 mm of working reach with a 7.00 mm cable body.
- Copper Core + Nylon Exterior: Support diagnostic signal routing with all-copper conductors and a flexible nylon cable body.
- BMW 20-Pin to 16-Pin: Route a matching BMW 20-pin diagnostic socket to a compatible 16-pin OBD2 tool through this passive adapter.
- 40 cm / 7 mm Cable: Add 400 mm of working reach with a 7.00 mm cable body.
- Copper Core + Nylon Exterior: Support diagnostic signal routing with all-copper conductors and a flexible nylon cable body.
- 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 BMW Adapter · 20-Pin to 16-Pin, 40 cm
Connect a BMW 20-Pin Port to a 16-Pin Tool
Connect a matching BMW 20-pin diagnostic socket to a compatible 16-pin tool with 40 cm of flexible, copper-core reach. This passive adapter routes existing signals only; scan functions still depend on the vehicle and connected tool.
- BMW 20-Pin to 16-Pin Route
- 40 cm Cable
- Copper-Core Conductors
- Passive Adapter
- Single-Cable Package
Key Features
Adapt the Legacy Port Without Protocol Conversion
20-Pin To 16-Pin Adapter
Use this adapter only when your vehicle has a BMW 20-pin diagnostic interface that matches the connector.
Routes a matching BMW 20-pin diagnostic interface to a 16-pin OBD2 connector for compatible diagnostic tools.
All-Copper Wire Core
The cable is manufactured with all-copper wire to help achieve stable and reliable data transmission during diagnostic connection.
Durable Nylon Material
The nylon cable body is designed for daily workshop handling and is shown with waterproof, high-temperature resistance, and double-protection characteristics.
Thicker 7.00mm Cable Body
The AUTOOL cable is shown with a 7.00mm diameter, compared with a 5.00mm ordinary OBD cable in the product image.
190g Reinforced Feel
The cable net weight is listed as 190g, while the ordinary comparison cable shown in the image is 160g.
Flexible Protected Exterior
The product image highlights EF & non-toxic, flexible, anti-scalding, waterproof, and anti-aging exterior characteristics.
BMW 20-Pin Adapter
The cable connects a BMW 20-pin diagnostic interface to a compatible 16-pin OBD2 tool using all-copper conductors.
Protected Nylon Cable Body
The nylon exterior supports daily workshop handling, with flexible protection around the cable and a 190g net weight.
40cm Diagnostic Connection
The 400mm adapter provides a short connection between the BMW diagnostic socket and scan tool, with a 7.00mm cable diameter.
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.
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
Verify the scanner, software, protocol, module, task, and any authorization independently of the cable.
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.
Specifications
Confirm Interface, Length and Quantity
| Specification | Value |
|---|---|
| Length | 40 cm |
| Connector Route | BMW 20-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 BMW 20-pin fit, 16-pin connection and signal compatibility, with safe-use and troubleshooting guidance.
Package Contents
One BMW Diagnostic Adapter Cable
- Included Cable1 adapter cable; 40 cm; BMW 20-pin → 16-pin diagnostic tool.
- Not IncludedDiagnostic scanner, software, licenses, vehicle, and unlisted adapters are not included.
- Included ComponentsPackage BagAUTOOL protective package bag
- Not IncludedDiagnostic scanner, vehicle diagnostic tool, or extra accessories are not included unless separately selected.
- Package ConfirmationConfirm the selected package contents before ordering.
FAQs
BMW Adapter Fit and Function Questions
What Is This BMW 20-Pin To 16-Pin OBD2 Adapter Used For?
It is used to connect a BMW 20-pin diagnostic interface to a standard 16-pin OBD2 diagnostic connector, allowing a compatible diagnostic tool to connect through the adapter cable.
Will This BMW OBD Adapter Fit Every BMW Model?
This adapter is for BMW vehicles equipped with a matching 20-pin diagnostic interface. Check the vehicle diagnostic port shape and pin layout before ordering.
Can I Use It With Any 16-Pin OBD2 Scanner?
Match the 16-pin scanner’s vehicle and module coverage to the BMW system you need to access.
Does This Cable Add Diagnostic, Coding, Or Programming Functions?
No. This product is an adapter cable only. It changes the connector access from BMW 20-pin to 16-pin OBD2, while all diagnostic, coding, programming, and service functions depend on the diagnostic tool and vehicle support.
What Are The Main Specifications?
The cable length is 400mm / 15.74 inch, net weight is 190g, material is nylon, cable diameter is 7.00mm, the 16-pin connector width is 40mm / 1.57 inch, and the 20-pin connector size is 42mm / 1.65 inch.
What Material And Wire Core Does The Cable Use?
The cable body uses nylon material and is shown with waterproof, high-temperature resistance, and double-protection characteristics. The cable is manufactured with all-copper wire to help provide stable and reliable data transmission.
What Is Included In The Package?
The package includes one AUTOOL BMW 20-pin to 16-pin OBD2 adapter cable and an AUTOOL package bag. A diagnostic scanner and additional vehicle diagnostic tools are not included.
How Long Is The Warranty Support?
Main unit: 3-year warranty. Standard accessories: 1-year warranty. Warranty Policy.
Does This Cable Add Diagnostic Functions?
No. It only changes physical reach, routing, and connector shape. Available functions depend on the vehicle, pinout, scanner, software, protocol, and authorization.
Does The Adapter Convert The Vehicle Protocol?
No. The adapter routes a legacy vehicle connector to a 16-pin tool connection. The connected tool must support that vehicle, protocol, module, and task.
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