8+ world-first solutions · VAG & Mercedes-Benz

Key, IMMO, cluster & ECU programming. Designed and developed by POLDIAG

PolDiag devices and licences for professional workshops, locksmiths and tuners. Hardware, firmware and software built by Keymaster engineers — often first in the world, continuously updated, backed by direct WhatsApp support.

New
Sale −9%
Bench read
Boot write

1,100.00 € 1,000.00 € · Licence only: 600.00 €

Delphi DCM6.2V · VW, Audi, SEAT, Škoda, VW Crafter MQB, selected MAN TGE · Includes PolDiag OBD Interface + licence

8+

World-first solutions

VAG

& Mercedes-Benz

OBD

& Bench support

WA

WhatsApp group · best support

✦ World first — MQB RH850 JCI/Visteon   ✦ World first — BCM2 Bench True Reading   ✦ World first — BCM2 Locked NEC IMMO 5   ✦ World first — RH850 1330A SRS Tesla / Mazda / Volvo

Solutions

Find your platform

Pick a vehicle group or module type. Every solution lists the hardware it needs, the work mode (OBD, Bench, Boot) and supported vehicles.

New in the shop

Latest products

Shows the 4 newest products automatically (Elementor Pro “Products” widget, ordered by date).

What’s new

Updates & releases

New modules, new vehicles, new features — your licence grows with our development. Follow the changelog or join the WhatsApp group.

04

Aug 2026

New product

PolDiag DCM6.2V Bench — Set & License

Delphi DCM6.2V: bench read through the ECU connector without opening; boot-mode write. IMMO decode, VIN/CS/MAC/Power Class editing, mileage editing.

23

Jun 2026

New set

PolDiag BENCH PCR2.1 SET

Complete package for Continental Simos PCR2.1: PolDiag Programmer, PolDiag OBD Interface and bench power adapter.

11

Feb 2026

New licence

PolDiag BENCH PCR2.1 License

Read/write flash & EEPROM on bench, one-click full cloning, IMMO data decode & edit, OBD unlock/lock.

Jan

2026

Software

PolDiag 1.050 beta (build 1870) — 01.2026

Latest software build available in Downloads, alongside drivers for Windows 10 & 11.

22

Jan 2026

New licence

PolDiag R7F701330 / 1330A License

Read/write secured Renesas R7F701330(A) MCUs in SRS modules — Tesla Model 3 / Y / S, selected Mazda.

06

Oct 2025

New set

BCM2 True Reading Set & License

True memory reading of locked and non-locked BCM2 — no processor erase, no re-flash, no pin lifting.

Stay current

Subscription & support

A Keymaster PolDiag 1-year subscription keeps access to the server database, new releases, software updates and WhatsApp support.

200.00 € / year

Hardware required

One platform. Add licences as you grow.

Licences activate functions on your PolDiag hardware (enter the serial number at checkout). New to PolDiag? Choose a Set — device and licence together.

Mb benz OBD interface

Device 01

PolDiag OBD Interface

Base device for OBD licences — e.g. DCM6.2V Bench, Mercedes ELV/ESL, VAG Old ECU, ELV/Kessy.

In sets

Mb benz programmer

Device 02

PolDiag Programmer

For bench/MCU licences — e.g. PCR2.1 Bench, BCM2 True Reading, Benz IC6/IC177, R7F701330. 

In sets

Accessory

Bench power adapter

MED EDC17 Bench Power Adapter — used for PCR2.1 and MED/EDC17 bench work.

99.00 €

⟳

Service

Subscription

Server database, new releases, updates & WhatsApp support. Some advanced functions require an active VAG subscription.

200 € / yr

LicenceOBD InterfaceProgrammerAdapter / cableActive VAG subscriptionMode
DCM6.2V BenchDelphi DCM6.2V · 600 €✓ Required——For advanced editingBench Boot
PCR2.1 BenchContinental Simos PCR2.1 · 399 €✓ Required✓ RequiredBench power adapter + wire harness (user-made)For clone / data edit / error fixBench
BCM2 True ReadingAudi / VAG BCM2 · 549 €—✓ RequiredPower adapter + RH850 cable (+150 € option)—Bench
Benz IC6 / IC177 MileageMercedes IC6 (HU6) · 549 €—✓ RequiredPower adapter + RH850 (MQB) cable—Bench / in-circuit
R7F701330 / 1330ASRS — Tesla, Mazda · 399 €—✓ RequiredRH850 power adapter + cable (+150 € option)For automatic crash data repairMCU access
Mercedes ELV / ESLFBS3 steering locks · 199 €✓ Required———OBD
VAG Old ECU IMMOEDC15, EDC16, ME7.5, MED9 · 199 €✓ Required———OBD Bench

Based on requirements stated on each product page (— = not listed). Always verify the exact ECU/module version before purchase.

Why Keymaster

Why workshops choose PolDiag

Keymaster is not another generic box. It’s a real tool built by people who understand automotive electronics at engineering level.

World-first solutions

We are regularly the first company in the world to crack new, difficult modules — others follow our lead.

Built by engineers

PolDiag devices and licences are developed entirely in-house — hardware, firmware and software.

Continuous updates

New modules, new vehicles, new features — your licence grows with our development.

WhatsApp support

Special WhatsApp group with direct access to our engineers.

Keymaster is not another Chinese box. It’s a real tool built by people who understand automotive electronics at an engineering level. The BCM2 True Reading was a game-changer for our workshop.
Jan K.
VAG Workshop Owner — Katowice, Poland

Distributors & contact

Talk to sales or find a distributor

Contact us directly or buy through an official distributor. [confirm: worldwide shipping?]

Sales support

WhatsApp

Poland & other regions

Distribution

ATOMIS Marcin Machciński

Ready to upgrade your workshop?

Browse professional programming solutions or ask us which set fits your work.