Logan / Sandero / Stepway / Duster / Kwid / Kardian

Technical identity summary

Source variant count: 1 · Status: CURRENT

This page does not treat the same sales name as one vehicle across all years and markets. Rows below remain separated by source region and variant identity.

Logan / Sandero / Stepway / Duster / Kwid / Kardian · Latin America

Where should diagnosis start?

• Separate CVT, D-CVT and e-CVT technically; fluid, clutch, motor-generator and hydraulic architectures differ.

Exact OEM torque, pressure, capacity, pin or calibration values are not inferred from this normalized identity record; a verified service source is required for the exact vehicle application.

System architecture: what does this record indicate?

• On turbo-petrol architecture, load calculation, boost target/actual, lambda/fuel trim, ignition and knock control are compared in the same event window.
• For DCT/DSG, TCU-mechatronics, K1/K2 clutches, actuator/line pressure and input/output speeds are evaluated together.
• CVT belt/chain-pulley architecture is not conflated with e-CVT planetary/motor-generator architecture.

Freeze-frame and live-data package

• Freeze frame: first/last fault time, RPM, load, vehicle speed, system voltage, core temperatures and companion DTCs.
• Live data: calculated load, MAP/boost target-actual, throttle angle, lambda/O2, STFT/LTFT, ignition advance and knock retard.
• Driveline: input/output speeds, commanded/actual ratio, clutch/TCC slip, fluid temperature, actuator/solenoid command and adaptations.

Measurement sequence

1. 1) Match vehicle/generation/market/powertrain/driveline identity to the source record; family name alone is not fitment evidence.
2. 2) Preserve freeze frame and companion DTCs before clearing; make the first-fault condition reproducible.
3. 3) Verify power/ground and network communication under load; do not decide from key-on static measurement alone.
4. 4) Compare commanded air/fuel/pressure with an independent physical result; separate sensor bias from real performance loss.
5. 5) Compare electronic command → hydraulic/actuator response → mechanical slip/ratio result at the same temperature and load.
6. 6) After repair, recreate the same load/temperature and verify DTC state, live-data deviation and user symptom together.

Root-cause discrimination matrix

• On lean/misfire/boost complaints, align fuel trim, lambda, ignition retard and boost deviation on one time base to separate air leak, fuel-delivery and ignition causes.
• For DCT harshness/slip, separate TCU command from clutch slip and actuator/hydraulic response; adaptation result alone does not prove mechanical wear.
• For CVT ratio faults, identify the architecture first; e-CVT motor-generator power split and belt/chain CVT hydraulic-pulley faults do not share the same diagnostic tree.

Connected technical centers

Engine Atlas · Transmission Atlas · DTC Academy · Recall

Market and generation variants

Logan / Sandero / Stepway / Duster / Kwid / Kardian · Latin America · 2005– • current/active