This is a tutorial on how to solve BMW CAS/FEM/BDC version & coding loss issue with Xhorse VVDI BIMTool Pro. You can refer to the solution in this article if you’ve met the following problems:

• BMW CAS4+ and FEM/BDC OBD show unsupported versions and require upgrades.
• BMW CAS4+ and FEM/BDC OBD preprocessing completes but indicates coding loss with no recovery possible.
• BMW OBD preprocessing is unexpectedly interrupted due to missing SWFL version, halting further processing.
• The vehicle’s SWFL or coding version mismatch causes functional deficiencies.

Solution

Here’s taking FEM module as an example.

When the SWFL, CANFD coding and key position info are missing, we can resolve these issues using BIM TOOL or BIMTool Pro.

1. Connecting Tools

Connect VVDI BIM TOOL, then open software, select

Fxx/Gxx Program/Code >> Auto detect >> Connect car

2. Calculating Programming Files

Vehicle programming >> 40-FEM[FEM_BODY] >> Calculate Programming File

Detected programming file which calculated success for this vehicle.

Press YES to load the calculated programming file directly.

Press NO to calculate the programming file again.

Calculate programming file require 1-5 minutes.

Click YES.

Noted the “Target istufen lev” should be the same as the “Shipment date”.

3. Programming

The gray area indicates the module’s current version information.

The orange area indicates the calculated programmable version information.

Click “Programming” to proceed.

Note: After programming is completed, read the vehicle’s DTCs and clear them.

4. Key Learning

After clearing the DTCs, process “FEM/BDC Key Learn >> Get Key Info”.

You can see the coding and key position info have been restored.

https://www.vvdishop.com/service/bmw-cas-fem-coding-lost-vvdi-bim-tool-pro-solution.html

 Xhorse Multi Prog programmer read and write VAG EDC17C46 ECU successfully.

Bench mode.

Read INT eeprom ok,

Read INT flash ok,

Write INT eeprom ok,

Write INT flash ok.

 Some users asked what the Xhorse Multi Prog OBD cable in the package is used for.

The OBD cable connects multi-prog with vehicle via OBD connector to read ECU by OBD.

Multi-prog supports some ECU reading/writing via OBD.

No specific ECU list is available.

Just check multi-prog software, see if there is OBD mode option.

If yes, connect multi prog with vehicle via OBD cable.

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 User feedback:

It is a Toyota Yaris 2015 with Valeo id46 immobox. Immo box is behind the glovebox. 2 screws easy to take out.
Not typical 8A chip.  8A you can do those through OBD – even in Europe. ID46 cannot be done via OBD.
Read st95160 eeprom data.
Make transponder to turn on car with Xhorse VVDI KET TOOL PLUS PAD.
Generate Toyota XM38 smart key under Yaris 2012 ID46 option.

Then program XM38 key with key tool plus. Make key from dump. 95160 under immo/yaris.

Adjusted some of the settings and everything worked. Both Keyless and remote.

 New XHORSE XKB520EN second generation wired remote is available on vvdishop.com. What’s the difference between first and second-generation vvdi wired remote?

Here is the clue.

Major differences:

• Gen2 wired remote has a red PCB while Gen1 is green.
• Gen2 remote supports wireless programming
• Gen2 remote has a lower power consumption
• Gen2 remote has enhanced Anti-static protection

Check in detail:

Gen2 XKB520EN wired remote front and back.

Supports both wired and wireless generation.

Gen2 remote has a lower power consumption.

Standby current Gen1 vs Gen2 remote

Working current Gen1 vs Gen2 remote

Contact 4.0kV main board discharge test.

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 Xhorse Multi Prog read Land Rover 2016-2019 encrypted KVM 9S12XEQ384 with XDNP16 KVM solder free adapter successfully.

Connect XDNP16 KVM adapter with multi prog via DB25 connector.

In Multi-prog software, select Land rover->RFA Secured 9S12XEQ384 (Adapter)

Read D-flash

Read eeprom D-flash successfully.

Read P-flash

Read P-flash in 1min 33s.

Save p-flash.

Note: If you have chip crack failure error when reading KVM with the XDNP16 KVM adapter,  clean the 1st and 3rd leg on the Oscillator and adjusting the Pogo pins inwards usually solves the cracking issues. 

 If you have a Tire Pressure Monitor malfunction DTC error after programming BMW 4D/8A motorcycle keys with VVDI Key Tool Plus or VVDI2, here is the working solution.

The problem can be solved by VVDI BIM Tool or VVDI BIMTool Pro programmer.

Connect BIMTool pro with laptop and motorcycle.

Run VVDI BMW software.

Go to “Program/Code” function.
Auto detect and connect Car to retrieve vehicle information.

Select Vehicle Programming.
Make sure “target istufen lev” is the same as the “Shipment date”.

If there is no shipment date available, choose the latest one.

Click on “FEM” and press “Calculate programming file”, press Yes to confirm

The calculation is completed.

Gray areas indicate the current module version information.

Orange areas indicate the programmable version information.

Click Programming to proceed.
Auto input VIN code.
Programming finished.

No DTC display on BMW motorcycle dashboard.

Done.

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 If you had error code 5 when cutting key with Xhorse Dolphin XP005L key cutting machine (error images shown below), here is the possible solution.

Solution:

Remove those 3 screws set from probe base.

Check the small wire and clean up iron filings.

 It is a Volvo XC-90 2021. We need to add a spare key to it using Xhorse VVDI Key Tool Plus. We need to read CEM data first and program key.

Step 1: Read CEM data
Remove CEM module.   Find chip 0N78S. Read this chip data.

Connect Xhorse Volvo CEM XDNP52 (MPC5748G) solde free adapter with CEM module and key tool plus.

Select IMMO Programming->Volvo->XC90->2015 onwards-> Smart key system
Read the CEM Data->Adapter method
Read and back up CEM data.

Step 2: Program Key
Select Add smart key
Load the CEM module data we read in step 1 to obtain 10-digit pin code

Turn Start knob to the right once then release.

Place original key into sensoring area (cup holder)

If programming failed, change the key in the sensoring area for different positions.

Program 1st key successfully.

Repeat the same step to program next key.

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 If you failed to turn on Xhorse VVDI Key Tool Max Pro, here is the solution.

Replace this diode on key tool max pro main board, or send back to replace. After replacing this diode, it should be fine.