What's VW & Skoda SFD2

SFD2 (UNECE) is the next level of SFD to meet the regulations of UNECE R155 & R156.
SFD (Schutz Fahrzeug Diagnose) is a security feature for Volkswagen Audi Group (VAG) vehicles from 2022 introduced in cars like Octavia mk4 or A8 that protects the car's control units from unauthorized access. From 2024 onwards, cars are protected by SFD2.
SFD2 is designed to protect the car's software, especially for updates performed over the air (OTA). It restricts functions like adaptations, coding, and parametrizations.

The control units protected by SFD include Engine Electronics, Central Electrics, Instrument Cluster, Gateway Electrics, Multimedia Unit and few more.

If you would like to read the detailed information about UNECE R155 & R156, you can do so on the UN website. We have linked the pages below:


What's it's impact on coding of Indian cars like Virtus, Taigun, Kushaq and Slavia

So all features can't be done in the same old price which used to be under 6000 ₹ for cars manufactured in or after April 2024 having virtual cockpit/ digital instrument cluster like:

  • Virtus Topline/ GT
  • Taigun Topline/ GT
  • Slavia Prestige/ Monte Carlo
  • Kushaq Prestige/ Monte Carlo

Below features related to virtual cockpit can't be enabled without unlocking the instrument cluster module but now few are doing but it costs almost 15000-20000 ₹:

✅ 80 kmph speed chime removal
✅ 120 kmph speed chime removal
✅ Tachometer/RPM gauge 
✅ Speedometer top limit from 260 to 280
✅ Refuel quantity
✅ Oil temperature
✅ Eco tips
✅ Tyre angle
✅ Virtual cockpit color to red, blue or any other color of choice

Similarly below features related to lights, horn & window can't be enabled whiteout unlocking the central electrics module which will again cost almost 15000-20000 ₹:

✅ Driver window open by long press of unlock button on remote
✅ Driver window close by single press of lock button on remote & keyless entry button
✅ Enabled car lock/unlock using remote with engine/ignition ON
✅ Horn sound/ acoustic confirmation on lock/ unlock, adjustable on infotainment
✅ Wiper tear drop wipe
✅ Antitheft alarm
✅ Theatre dimming effect on buttons of center console and door pad with headlights
✅ Lane Change clicks/indicators to 5 blink
✅ Front DRL blinking with indicator
✅ ORVM indicator blinking out of sync with other indicators
✅ Tail lights as DRL
✅ Tail lights ON with Boot open
✅ Switch off DRL on handbrake
✅ Ambient light ON all the time
✅ Fog lights flashing with high beam flashing
✅ Engine Start/Stop button pulsation
✅ DRL and tail lights on/off with unlocking/locking the car
✅ Tail lights blinking with indicator

So what features are we left with that can be enabled without costing a bomb:

✅ Improved AC performance for better cooling
✅ Show AC blower speed in AUTO mode
✅ Enhanced throttle response with dynamic mode
✅ Enhanced traction control/ Torque vectoring with strong XDS
✅ Improved steering feel with dynamic mode
✅ AC controls on Infotainment
✅ Performance/ Sports menu on infotainment
✅ Off road menu on infotainment
✅ Engine auto Start/Stop reasons on Infotainment
✅ Changed Boot logo on Infotainment
✅ Canton sound signature for infotainment, better overall music
✅ Dynaaudio sound tuning for woofer (for cars having woofer)
✅ Video in motion (via pendrive)
✅ Change Color/ theme in infotainment


Below additional features can be done for cars manufactured in or after April 2024 having analog instrument cluster like:
  • Virtus highline/ comfortline
  • Taigun highline/ comfortline
  • Slavia Sportline/ Signature/ Classic
  • Kushaq Sportline/ Signature/ Onyx/ Classic

✅ 80 kmph speed chime removal
✅ 120 kmph speed chime removal
✅ Gauge test/ Needle sweep at startup
✅ Refuel quantity on MID
✅ Oil temperature on MID
✅ Lap timer on mid MID
✅ Eco tips on MID
✅ Convenience consumers on MID
✅ Increased illumination of analog dials on MID in evening/night (headlight in off position)


Hope this information helps you
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