Xhorse VVDI MB BGA Tool — Professional Mercedes Benz Key Programmer
Xhorse VVDI MB BGA Tool is a modern Mercedes Benz key programmer that allows you to quickly and safely program new keys without the need for desoldering/resoldering chips. The device supports password reading, preparing new keys via IR interface, working with EIS, ESL, ECU, gearbox modules, and other control units.
When you purchase the VVDI BGA Tool from our store, you get 1 year of unlimited free tokens for key programming and operations.
Key Advantages of VVDI MB BGA Tool
- All Keys Lost support for many Mercedes models (W166, W212, W204, and more).
- Password calculation tool — calculate password via OBD (BGA Key, NEC Key, V051, V057).
- EIS/ELV renewal and write — read and write EIS, repair ESL.
- Gateway EEPROM read/write — read and write EEPROM and Flash memory.
- ECU/Gearbox renew tool — reset and adapt ECU, gearbox, ISM modules.
- Unlock ELV function — unlock electronic steering locks.
- Supports NEC V051/V057 keys and OBD EIS cable adapters.
- Frequent online software updates.
Features and Specifications
Software and Languages
- Latest software version: V5.1.6 (firmware V5.1.6 required).
- Multi-language support: English, Polish, Spanish, Chinese.
- Free updates, token system for password calculation.
Hardware Integration
- Compatible with Condor and Dolphin key cutting machines.
- Get up to 2 free tokens per day when paired with specific models.
Xhorse VVDI MB Tool Functions
Key Operations
- Read, write, and identify keys.
- Supports IR key file preparation tool for creating V11, V41, V51 version keys.
- Renew and reprogram used keys.
Password & Security
- Online and offline password calculation (including All Keys Lost).
- CAN and K-Line protocol support.
- Fast calculation speed.
Vehicle Module Operations
- EIS tools — read and write ignition switch modules.
- ESL tools — check and repair steering lock systems.
- Gateway EEPROM read/write — work with W204, W207, W212, and others.
- ECU/Gearbox renew tool — reset and adapt control units.
Supported Models and Keys
Mercedes Models:
W164, W166, W169, W197, W203, W204, W207, W210, W212, W215, W218, W220, W221, W230, W246, W463, W639, W906, and more.
Key Types:
- NEC 2001–2005
- NEC 2006–2010
- BGA 2011+
- V03, V05, V06, V07, V08, V09, V59, V61
With the Xhorse VVDI MB BGA Tool, you get a universal device for professional Mercedes Benz service, including all keys lost programming, module read/write, and integration with modern key cutting machines.
Important:
This function is available only on certain BMW engines and is NOT applicable to other vehicle brands.
The information below applies only to stock engines with factory ECU software and a standard exhaust system.
What This Parameter Actually Represents
This is NOT a direct measurement of fuel octane and is NOT a direct octane reading calculated by the ECU.
The value is an adaptation factor ranging from 0 to 1, where:
- 0 = no correction
- 1 = maximum correction
According to BMW’s internal definition:
Faktor adaptierte Kraftstoffqualität (0 = ROZ98 / 1.0 = ROZ91)
- 0 corresponds to 98 ROZ
- 1.0 corresponds to 91 ROZ
ROZ is the German equivalent of RON (Research Octane Number).
The device converts this multiplier into a more intuitive octane value for user convenience.
⚠️ The device does not measure anything itself.
It only displays the data provided by the engine control unit (ECU).
How the ECU Evaluates Fuel Quality
Each ECU has different calibration sensitivity:
- Sensitivity to the adaptation factor
- Sensitivity of the knock control system
Fuel quality is evaluated subjectively by the ECU, primarily based on:
- Knock ignition timing corrections
- Overall engine noise levels
BMW G-Series & LCI F-Series (B-Engines)
B38 / N63 / S63 / N74
These engines are highly sensitive to octane adaptation.
- During warm-up and cruising, the displayed octane may frequently drop to 95 or lower.
- This does NOT automatically indicate poor fuel quality.
- Under load, the value should increase.
⚠️ If the value continues to decrease under load, this may indicate a problem.
B46 / B48 / B58
These engines have low sensitivity.
- During cruising, octane will typically display maximum values even with mediocre fuel.
- Under load, the value will decrease if fuel quality is truly poor.
S58
Octane correction is virtually inactive.
- It will typically always show 98.
- If it drops below 98, fuel quality is genuinely very poor.
BMW F-Series (Pre-LCI) with N/S Engines
Most pre-LCI F-series ECUs do not calculate octane adaptation.
Do not expect this parameter to function.
S55
- Octane parameter not used by the system
- Display not supported
- However, display of the last 5 refueling quality events is supported
S63
- Octane parameter not used
- Display not supported
- Refueling quality display not supported
BMW E-Series
Octane parameter not available. Display not supported.
Important Notes About Tuned Vehicles
With modified hardware or custom tuning, behavior may vary significantly. Always consult your tuner regarding expected operation.
Key principles:
- If octane drops under load, it means fuel quality is worse than expected under those conditions.
- This does NOT automatically mean the fuel itself is bad.
Examples:
- If a tuner increases ignition timing and boost pressure, even good fuel may cause knock corrections, and the ECU may interpret it as poor fuel.
- Thin-walled or poorly mounted exhaust systems may create parasitic noise, which the ECU may interpret as engine knock, causing negative correction.
- Conversely, if knock sensitivity is reduced or octane correction is disabled in tuning, readings may appear ideal while actual engine safety is compromised.
