Xhorse BCM2 Solder Free Adapter V2 Review

I’ve used the Xhorse BCM2 Encrypted Solder-Free Adapter on several BCM2 jobs. It’s a practical bench setup for encrypted BCM2 read/write work on Volkswagen, Audi, Porsche, and Lamborghini, and it works with both Multi-PROG and VVDI Key Tool Plus.

 

Who Should Buy It?

Good fit for:

• Technicians regularly working on VAG BCM2 modules.
• Locksmiths who need BCM2 bench read/write capability.
• Workshops that prefer solder-free connections.

 

Not the best fit for:

• Shops that only see BCM2 occasionally.
• Beginners with no BCM2 bench experience.
• Technicians who don’t need BCM2 read/write work.

Real Workshop Notes

The Connection

The connection is pretty simple once you have the right BCM2 version. The adapter locks onto the required points and stays in place well.

The kit has two adapter boards and two cables for different BCM2 versions. I like the setup because there’s no soldering involved.

Reading

I usually do a Read ID first. If the CPU is recognized correctly, I move on to D Flash and P Flash.

D Flash is relatively quick. P Flash takes longer, but the actual reading process was stable in my testing.

 

One Thing to Expect

The BCM2 needs to be unlocked again for each operation. It doesn’t stay unlocked after the first decryption.

That adds some time, especially if you’re doing several operations. I wouldn’t permanently unlock it just for convenience because that means erasing the data.

 

Overall

Once the correct adapter and protocol are selected, the workflow is straightforward. Writing follows basically the same approach as reading.

What I Liked

1. Stable fit: The adapter stays firmly on the BCM2 connection points.
2. Solder-free: No direct soldering to the board.
3. Two setups: Covers different BCM2 versions.
4. Read ID: Useful for checking the connection before a full read.
5. MultiPROG&Key Tool Plus: Good flexibility if you already use either platform.

 

What Could Be Better

1. Repeated unlocking: Adds extra time between operations.
2. P Flash speed: Larger data takes noticeably longer to read.
3. Correct identification is important: The BCM2 version, CPU, and protocol all need to match.
4. Some bench experience helps: It’s not completely plug-and-play for someone new to BCM2 work.

 

Would I Buy It Again?

Yes. After using it on multiple BCM2 jobs, I’m comfortable keeping it in the bench setup. The BCM2Solder-Free Adapteris stable, solder-free, and easy to work with once the correct configuration is identified. The repeated unlock step is the main thing to account for, but it hasn’t been enough to put me off using it.

 

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Xhorse New vs Old Audi BCM2 Solder Free Adapter

 New Gen2 Xhorse XDNPA2GL Audi BCM2 Encrypted Solder Free Adapter is available on vvdishop.com. What’s the difference between Gen1 and Gen2 Audi BCM2 adapter?

Check the comparison below:

Item	Xhorse Gen1 Audi BCM2 Adapter	Xhorse Gen2 Audi BCM2 Adapter
Car List	2013-2019 A4L,  A5, Q5 2013-2019 A6L,  A7, A8	2013-2019 A4L,  A5, Q5 2013-2019 A6L,  A7, A8, Lamborghini, VW Touareg and more
BCM2 Versions	0510, 0521, 0551, 0572, 0582, 0633, 0461, 0650, 0711, 0824, 0825, 0827	all BCM2 versions (03XX/ 04XX/ 05XX/ 06XX/ 07XX/ 08XX)
Compatible devices	VVDI Key Tool Plus , Multi Prog and VVDI2 + VVDI Prog	VVDI Key Tool Plus, Multi Prog
Full data	–	Yes, full Dflash + Pflash. Supports BCM2 cloning (with the same hardware version)
Get BCM2 Immo data without original key ID	Yes	Yes
Compatible with 754J key	Yes	Yes
Package List	1 x XDN62 BCM2 Adapter 1 x XDN63 BCM-1 Adapter 1 x XDN64 BCM-2 Adapter 1 x XDN65 BCM-A1 Cable 1 x XDN66 BCM-A2 Cable 1 x XDN67 BCM2-PROG Cable	1pc x BCM2-A Solder-free Adapter 1pc x BCM2-B Solder-free Adapter 1pc x Adapter Cable for VVDI Key Tool Plus 1pc x Adapter Cable for MULTI-PROG

In sum:

The Gen2 adapter works with vvdi key tool plus and multi prog only.

The Gen2 Audi BCM2 adapter is the updated version of Gen1. It is an improved version that supports reading all BCM2 versions, regardless of hardware version. It also supports cloning BCM2s with the same hardware version. It can read full Dflash and Pflash data. Gen1 adapter cannot do BCM2 cloning.

 

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Xhorse Multi Prog Read Audi BCM2 with Solder Free Adapter

 Here we’re taking about how to read VW/Audi BCM2 module with Xhorse Multi-Prog Programmer without soldering. The Audi BCM2 Solder Free Adapter &VVDI2 will also be required.

 

Open Multi-Prog software,

Device >> Selected BCM2 model: LOCK_BCM2-2(ADAPTER)(AUDI->AUDI) >> OK >> Details >> General info/ Connection diagram

Here we can get the adapter info and connection guide.

 

Connect Solder Free Adapter, BCM2 module and MultiProg programmer.

Power the adapter.

Connect to VVDI2.

Read DATA1 and save the data file.

Open VVDI2 software,

VW >> Key learn >> Fifth immobilizer system >> Step1: Show BCM2 information >> Load DATA1 file >> Confirm vehicle info

It will show this BCM2 supports continuing Step2.

Go back to Multi-Prog.

Read and save DATA2 file.

Continue with Step2: Get BCM2 immo data >> Load DATA2 file

VVDI2 will calculate the immo data of the module.

Click OK to save the immo data. The file can be used in dealer key generation and key learning.

We also need to save the service data that must be written back to BCM2 with Multi-Prog. Otherwise, the module cannot function properly.

Switch to SERVICE-DATA/FILE in Multi-Prog,

Open file >> Load service data file >> Write

Chip writing success.

 

After installing the BCM2 module, it will work normally.

Done.

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Worth Buying Xhorse Audi BCM2 Solder Free Adapter?

 To program VW Audi 5^th IMMO keys like A4, A5, Q5, A6L, A8L, Touareg, Xhorse BCM2 Solder Free Adapter would help a lot. Users can easily select the corresponding method on VVDI Key Tool Plus to work with it.

There are mainly 2 types of car models in programming Audi 5^th keys:

• Models that no need sync data.

This type of models only need to get immo data for key adding & all keys lost. The representative models are A4, A5, Q5.

 

Ways to get immo data:

1. For vehicles before 2012, can use VVDI to read by OBD directly; Or use VVDI PROG + VVDI2 to read & decode D-FLASH, P-FLASH from BCM. This type of non-encrypted BCM can be used for BCM clone & maintenance with VVDI PROG.
2. For vehicles after 2012, Audi BCM2 Solder-Free Adapter is necessary to read immo data. After that, users will be able to convert data via VVDI2 or VVDI Key Tool Plus for key match.

Note: Data read by Xhorse BCM2 Adapter is only used for key programming, no support BCM clone maintenance.

 

Suppose that you don’t have the Audi BCM2 Adapter when all keys lost, you may have to pay an additional cost $170-$500 for data calculation via OBD. With the adapter, all these are free.

• Models that need sync data.

This type of models need to get immo data & synchronous data simultaneously. The representative models are A6, A8, Touareg.

 

For key adding situation, either VVDI2 or VVDI Key Tool Plus can get immo data by OBD regardless of years. Users can get synchronous data from a working key without having to read BCM. It’s very relatively simple.

 

For all keys lost situation, certain CVT gearbox of vehicles before 2012 support to read BCM data via VVDI PROG. Then users can follow steps on VVDI2 or Key Tool Plus Pad to online calculate synchronous data.

(*Few cars are workable in this way, it requires experienced locksmith to read directional lock and engine data, short circuit communication line. It’s not recommended to do without experience.)

 

As for vehicles after 2012, those BCM are generally locked. At this time, the Audi BCM2 Solder-Free Adapter can help to read out data. After that, users should convert immo data via VVDI2 or VVDI Key Tool Plus. If it allows to read directional lock and engine data again, which means it supports to get synchronous data for all key lost programming. If not, users should find third-party calculation.

 

Price Difference

1. Xhorse Solder Free Adapter is a one-time deal, only cost $121 to support many Audi models.
2. Without adapters, users may have to pay $500 and more for data calculation.
3. Calculation cost with data read by Xhorse adapter will be much lower than simply read by OBD.

 

Conclusion

It’s recommended to have Xhorse BCM2 Solder Free Adapter for locksmiths who usually program VW/Audi 5^th immobilizer system keys. The adapter not only greatly save cost, but also earn more for next time job. It will pay for itself once using it.

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