Description
If you own a 2022+ Golf MK8 R, GTI, S3 8Y, Cupra Leon / Formentor, or similar MQB Evo Platform vehicle with the DSG DQ381 transmission, you will have discovered a frustrating limitation! Your transmission cannot be tuned...
Racingline UK's Mechatronic board upgrade address the problem properly, right at the transmission level.
By replacing the locked '401' bootloader factory control board with Racinglines original but unlocked Bosch version, you will open up flashing capability over OBD and the PDM tool, giving the DSG gearbox tuning-friendly '301' bootloader!
At last this allows full, proper Racingline TCU calibration capability to ensure correct clutch pressure control to match increased torque along with a raft of enhanced performance features.
Every Replacement board includes Racinglines advanced Dynamic TCU gearbox tuning in the price.
Compatability:
VWG MQB Evo DQ381 'G2' Models from 2022+
Confirmed applications.
DQ 381/380 DSG GEARBOX (7 speed) from 2022 - 2025
VWR040301
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VW Golf 8 GTI
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VW Golf 8 GTI Clubsport
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VW Golf 8 R
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VW Arteon 2.0 TSI EA888.4
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VW T-Roc R 2.0 TSI
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VW Tiguan II 2.0 TSI 245ps
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VW Jetta / GLI 7
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Audi S3 8Y
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Audi A3 2.0 TSI 8Y
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Audi TTS 2.0 TFSI 8S 320ps (EA888.4)
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Audi TT 45 TFSI 8S 245ps (EA888.4)
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Audi SQ2
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Cupra Leon IV FW
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Cupra Formentor
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Cupra Ateca
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SEAT Tarraco
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Skoda Octavia IV NX
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Skoda Superb III B8 3V
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Skoda Kodiaq vRS
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> PLEASE SEE INSTALL INFORMATION <
Typical installation takes 3-4 hours with proper equipment and technical knowledge.
This is not an installation that should be approached by anyone other than a RacingLine Software dealer with a qualified technician familiar with changing Mechatronics boards, carried out in a suitable workshop environment.
Home/amateur installation is not recommended and may affect warranty if fitting is not carried out in line with VWG procedures.
We recommend the below being changed during the install.
- N10554002 (x9) - TCU Control Board Bolts
- OGC927377 - Multi-Plug Gasket
- OBH325147 - Multi-Plug Clip
- OGC325201L - TCU Cover with Seal
- N91032702 (x4) TC Cover Bolts
- G055529A2 (x7) DSG Oil
- OGC325183D - DSG Oil Filter
- N91084501 - DSG Oil Filter Seal
- N0438092 - DSG Fill Plug Seal Ring
- N90965401 - Drain Bolt with Seal Ring


