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CPC Torque limiter — torque limit

Mercedes Interface New Special Functions Advanced ⏱ 5–10 min 4 steps

The CPC caps the torque output of the ECU: even if a tuner builds a higher torque curve, the CPC holds the output back. This function lets you reach the CPC's built-in limits. Example: W206 C180, factory torque 250 Nm, factory CPC set at 300 Nm, which can be raised to a maximum of 420 Nm — the map has to be written with that ceiling in mind.

Required licences

  • Licenza Mercedes Online

Hardware / cables

  • AVDI
  • Cavo OBDII
⚠ WarningThe CPC has built-in limits: don't expect to go beyond them. The map flashed into the ECU must stay within the CPC's maximum limit.

Procedure

  1. Select the model and go into the "Special Functions" menu.
  2. Select "Torque Limiter" (CPC_NG unit).
  3. Set the values you want, staying within the CPC's maximum limit.
  4. Click "Write" to save.

Reference screenshots

CPC Torque limiter — torque limit — 1
Source: Manuale Mercedes Online, cap. 10 (p.39) · ⏱ estimated time 5–10 min
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