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AsTools  |  SKU: A0115-2W

BMW K+DCAN (Switch) | Interface Cable (White)

12 reviews
€19,95 incl.
€16,49 excl.

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The BMW K+DCAN (Switch) interface cable connects your Windows laptop via USB to the OBD2 port of a BMW or Mini. With software such as INPA, NCS Expert, Tool32 and ISTA-D, you can read out all control units, clear fault codes and code options.

The cable supports both K-Line and D-CAN. With the switch, you connect or disconnect pins 7 and 8: connected for cars with K-Line (up to approx. 03/2007), disconnected for cars with D-CAN (from approx. 03/2007). The USB connection runs via an FTDI chip, which Windows recognises as a COM port.

HIGHLIGHTS

✔K-Line and D-CAN — One cable for older and newer E-models.
✔Switch pins 7/8 — No separate bridge or adapter needed.
✔INPA, NCS and ISTA-D — Works with the well-known BMW software.
✔FTDI chip — Stable COM port under Windows.

POINTS TO NOTE

✕Not for F- and G-series — These require an ENET cable.
✕Driver required — Install the FTDI driver and set up the COM port.
✕Windows only — No phone app via this cable.
✕Software sold separately — The cable is supplied without software.

Applications and functionality

The cable is intended for BMW and Mini specialists and DIY enthusiasts who want to read out or code an E- or R-series with a laptop.

Functions

  • Fault codes: Read and clear in all modules.
  • Live data: Sensor values in real time.
  • Coding: Adjust options with NCS Expert.
  • Service: E.g. CBS reset and battery registration.

Switch

  • Pins 7 and 8 connected: K-Line, cars up to approx. 03/2007.
  • Pins 7 and 8 disconnected: D-CAN, cars from approx. 03/2007.
  • Unsure: Try the other position if there is no connection.

How to use it

  1. Install driver: Install the FTDI driver on your Windows laptop.
  2. Set up COM port: Configure the COM port via Device Manager.
  3. Set the switch: Choose K-Line or D-CAN with the switch.
  4. Connect: Plug the cable into the OBD2 port; switch ignition on.
  5. Start software: Launch INPA, NCS Expert or ISTA-D.

Special features and capabilities

What makes this cable different from a standard OBD2 cable:

  • BMW protocols: K-Line and D-CAN via EDIABAS.
  • Physical switch: Connect or disconnect pins 7 and 8.
  • Wired connection: No signal dropout during coding.

Compatible software and operating systems

The cable works with BMW software on a PC or laptop. Well-known programs:

  • INPA and EDIABAS: Diagnostics, live data and fault codes.
  • NCS Expert: Coding of options and functions.
  • Tool32: Running individual ECU jobs.
  • ISTA-D: Comprehensive diagnostics and fault finding.

Operating system: Windows, with the FTDI driver. The cable then appears as a COM port in Device Manager.

Compatible vehicles

The cable is intended for BMW and Mini models with K-Line or D-CAN via the OBD2 port:

  • BMW E-series (K-Line): Approx. 2000 to 03/2007, incl. E46, E39, early E60/E90.
  • BMW E-series (D-CAN): From approx. 03/2007, incl. late E60, E90, E70, E87.
  • Mini R-series: K-Line or D-CAN, depending on the year of manufacture.

Not suitable for the F- and G-series; these use an ENET cable for ISTA and E-Sys. Older models with a round 20-pin diagnostic connector require a separate adapter.

Package contents

  • 1x BMW K+DCAN (Switch) | Interface Cable (White)
💡
Good to know: INPA often expects the cable on COM1. In Device Manager, therefore, set the cable's COM port to 1 and the latency timer to 1 ms. This prevents most connection errors.

Technical specifications

General

The brand of the interface cable. Some cables are generic and have no well-known brand.Brand
AsTools
The vehicle makes the cable is intended for. Many cables work best with one or two makes.Suitable for makes
  • BMW
  • MINI

Connection

The connector used to attach the cable to your laptop. An RJ45 network connector is required for newer cars with Ethernet.Computer connection
USB
The ways in which the cable communicates with the vehicle. The vehicle must use a protocol that the cable supports.Protocols
  • K-Line
  • D-CAN
A switch on the cable that connects or separates two pins. This is required for older BMW models as well as newer ones.Switch for pins 7 and 8
The chip in the cable that passes on the data. An FTDI chip works reliably with a wide range of software.Chip
FTDI

Software

The programs the cable works with. The cable does nothing by itself without software on your computer or phone.Compatible software
  • ISTA
  • INPA and EDIABAS
  • NCS Expert
  • WinKFP and Tool32

Functions

Whether the cable can read and clear faults stored in the vehicle. Useful for identifying what is wrong.Read and clear fault codes
Whether you can reset the service indicator in the vehicle after maintenance. This avoids a visit to the dealer.Service reset
Whether you can view or record sensor readings live while the engine is running. This helps you find a fault faster.Live data
Whether you can change the settings of the control units in the vehicle. For example, you can switch functions on or off.Module coding
Whether you can write new software to a control unit. This is required for updates and tuning.ECU flashing
Whether you can have the vehicle adapt to new components after replacement. Without adaptation, a component may not work properly.Component adaptation
Vehicle connection
OBD2, 16-pin
Operating system
Windows

Other specifications

Brand
Universal
Model
K+DCAN with switch
Type
BMW interface cable (USB)
Switch
Pin 7 and 8 connected or disconnected

Reviews

4.9 ★★★★★ 12 reviews
5 ★11
4 ★1
3 ★0
2 ★0
1 ★0
★★★★★ Enes S.Verified buyer
★★★★★ sebastien M.

meets my expectations and fast shipping

meets my expectations and fast shipping
I recommend

★★★★★ Matei M.

As expected

Did not use the cable yet, but thewifi scanner works great

★★★★★ Boštjan H.

So far cable works great and the price is reasonable

So far cable works great and the price is reasonable....although the delivery was delayed for one day, which is not a big deal, everything was great.
I can connect to my bmw e39 without problem....

★★★★★ Remko S.

Works great

Works great with E46

★★★★★ Yordy R.

Perfect support after the first cable didn't work

Perfect support after the first cable didn't work.

★★★★★ Arnoud V.

Good

Good sh*t

★★★★★ Kalidien M.

Interface for INPA

Good product and fast delivery. Very satisfied.

★★★★★ Anonymous

No CD-ROM included, but received the link via email contact nicely.

★★★★★ KevinVerified buyer

Perfect

★★★★★ PatrickVerified buyer

The cable works well, had some trouble installing it on a Mac with Parallels Windows 11, but managed in the end by installing the driver manually.

★★★★★ JoeVerified buyer

Fast delivery and does what it's supposed to do

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