DSG 6 DQ250 (02E) TCUs

Common problems

  • Gearbox won't change gear
  • Irratic change of gears
  • Several faults on sensors
  • Several faults with solenoid valves

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DSG 6 DQ250 (02E) TCU repairs

DSG is short for Direkt Schalt Getriebe or Direct Shift Gear. It is in fact a robotic manual gearbox. The 02E is a 6-stage transverse transmission with a nominal torque of 250 Nm equipped with a wet clutch. The DSG 6 is used in various mid-range vehicles of the VAG group. How would you notice any problems with a DSG gear box? The gear indicator on the instrument cluster will flash, the DSG gear box might not change gear properly or at all. The car will probably not drive smoothly and will shock when pulling away. TCU is short for Transmission Control Unit also called TCM or automatic gearbox control device. DSG stands for Direkt Schalt Getriebe, the 6 for the number of gears, the letters DQ for transverse transmission placement and the number 250 for the nominal torque. The control device of this DSG transmission is called 'Mechatronic'.                                                                                                                         


Technicians in the workshop will be able to verify the faults by making a test drive. The fault will also be able to be verified by reading the OBD diagnostic trouble codes.   Often heard faults are the DSG not or not properly shifting and several types of defects in the magnetic valves or sensors.  

DSG 6 common problems & fault codes

  • 18226 P1818 Pressure Control Valve 2 N216 Electric Error
  • 18222 P1814 Pressure Control Valve 1 (N215), Open / Short to Ground
  • 18223 P1815 Pressure Control Solenoid 1 (N215), Short to B+
  • 18227 P1819 Pressure Control Solenoid 2 (N216), Open / Short to Ground
  • 18228 P1820 Pressure Control Solenoid 2 (N216), Short to B+
  • 18231 P1823 Pressure Control Solenoid 3 (N217), electrical malfunction
  • 18232 P1824 Pressure Control Solenoid 3 (N217), Open / Short to Ground
  • 18233 P1825 Pressure Control Solenoid 3 (N217), Short to B+
  • 18236 P1828 Pressure Control Solenoid 4 (N218), electrical malfunction
  • 18237 P1829 Pressure Control Solenoid 4 (N218), Open / Short to Ground
  • 18238 P1830 Pressure Control Valve 4 (N218), Short to Plus
  • 18241 P1833 Pressure Control Solenoid 5 (N233), electrical malfunction
  • 18242 P1834 Pressure Control Solenoid 5 (N233) Open / Short to Ground
  • 18243 P1835 Pressure Control Solenoid 5 (N233) Short to B+
  • 18246 P1838 Pressure Control Solenoid 6 (N371), electrical malfunction
  • 18247 P1839 Pressure Control Solenoid 6 (N371) Open / Short to Ground
  • 18248 P1840 Pressure Control Solenoid 6 (N371) Short to B+
  • 19143 P2711 Unexpected / Implausible Mechanical Gear Disengagement, Intermit-tent
  • 17134 P0750 Control Valve 1/Solenoid Valve N88 Function Disturbance
  • 17137 P0753 Control Valve 1/Solenoid Valve N88 Electric Error
  • 17114 P0730 Gearshift-/ Transmission Surveillance Wrong Gear Transmission Ratio
  • 18165 P1757 Power Supply, Interruption
  • 17111 P0272 Rounds Count Signal From Engine ECU, No Signal
  • 17090 P0706 F125 Drive Position Sensor Signal Implausible
  • 17106 P0722 Gearbox Speed Sensor G195 No Signal
  • 18201 P1793 Gearbox Speed Sensor 2 G196 No Signal

Vibrations and temperature changes can influence the bonds and magnetic valves on the printed circuit board.

Result on different parts

A faulty DSG 6 TCU (Mechatronic) can cause the vehicle to not change gear or drive properly. In addition, error codes can be caused in various other control devices.  If a DSG 6 TCU faults, the gear box will not or not properly shift gears. It will not be possible to drive the car normally.
Remanufacture solution. The DSG 6 TCU will be tested upon entry. During this test, it will be verified if the fault reported by the customer can be reproduced. If the fault is observed, the TCU will continue in the remanufacture process. At the end of the process the TCU will be tested to verify that all faults have been rectified and it operates as it should be.

Information for the mechanic

The manufacturer's instructions must be adhered to when removing the unit. The long sensor arm is very prone to damage. A specially developed transport packaging is available for the transmission. Please contact our customer service to arrange shipment.

When installing the TCU, always follow the manufacturer's instructions. ACtronics will send a code card with instructions to get the TCU set up in the car after the remanufacture. Always follow the instructions on this code card. Clear any error codes present and perform a basic adjustment of the DSG 6.