VinFast VF e34 EV High Voltage A/C Electric Compressor | BENLING EM34A1-L4002X

Cross Reference Part Numbers

1. Manufacturer Model Code: BENLING EM34A1-L4002X
2. VinFast Exclusive OEM Factory PN: PWT30111101
3. No interchangeable supersession OEM codes; single dedicated part number for VF e34 platform
4. Aftermarket Remarks: No universal generic substitutes available; must adopt Benling EM34A1-L4002X to avoid communication mismatch faults

Exact Vehicle Fitment (Model sorted first)

1. VinFast VF e34 All Trim Levels Compact Pure Electric SUV Full production cycle 2021 – Present
    
   All market versions including Vietnam domestic, Southeast Asia export models

Remarks: Special high-voltage electric compressor for VF e34 only; incompatible with VF5/VF6/VF7/VF8/VF9 and other VinFast EV models with different high-voltage architecture, CAN protocol and mounting structure.

Technical Specifications

1. Brand: BENLING (Professional EV high-voltage compressor manufacturer)

   1. Model: EM34A1-L4002X
   2. VinFast OEM Part No.: PWT30111101
   3. Compression Structure: High-efficiency scroll electric compression structure, displacement 34cc
   4. Working Voltage: Vehicle 400V high voltage DC battery system, 12V auxiliary control power supply
   5. Built-in Configuration: Integrated intelligent drive inverter + CAN bus communication control board
   6. Matching Refrigerant: R1234yf low global warming potential eco refrigerant
   7. Special Lubricant: EV exclusive POE refrigeration oil (cannot mix with fuel vehicle PAG oil)
   8. Operating Temperature Range: -30℃ ~ +135℃
   9. Factory Inspection Standard: 100% high voltage insulation withstand test, refrigerant airtight leak test, vehicle communication matching calibration, low noise & energy efficiency detection
   10. Quality Certification: IATF16949 automotive OEM production standard, EV high voltage safety UL certification

   Core Functions

   1. Convert 400V high-voltage electric energy into compression power, compress low-pressure gaseous R1234yf refrigerant into high-temperature high-pressure gas to realize vehicle refrigeration cycle
   2. Built-in intelligent frequency conversion inverter adjusts compressor real-time rotating speed via CAN bus according to cabin temperature demand, energy-saving operation to reduce EV battery power consumption and extend cruising range
   3. Independent refrigeration operation without relying on drive motor operation; stable cold air output under static charging, urban low-speed idle and high-speed driving conditions
   4. Dual auxiliary function: Cabin air conditioning cooling + high-voltage power battery auxiliary heat dissipation and temperature control
   5. Multi-layer built-in protection logic including overvoltage, undervoltage, overheat, liquid hammer lock rotor, effectively prevent high-voltage circuit short circuit and compressor burnout failure

   Common Malfunctions Resolved

   • No cold air output when vehicle driving or charging, vehicle high-voltage system starts normally without obvious power failure alarm
   • Intermittent AC automatic shutdown, climate control central screen pops up air conditioning system fault warning code
   • Abnormal buzzing vibration noise of compressor during startup, serious locked rotor failure unable to work
   • Insufficient cooling capacity, slow cabin temperature drop under high ambient temperature summer environment
   • Compressor communication failure triggers vehicle high-voltage system fault alarm code
   • Refrigerant leakage from compressor shell or pipeline connection port resulting in complete loss of cooling function

   Product Advantages

   1. Authentic BENLING factory OEM dedicated compressor, fully matched VinFast VF e34 vehicle high-voltage communication protocol, no coding mismatch or AC failure after replacement
   2. One-piece integrated inverter design, no separate replacement of drive board required, greatly shorten vehicle maintenance overhaul working hours
   3. Optimized low-power scroll compression structure, lower energy consumption than generic aftermarket compressors, effectively protect vehicle cruising range
   4. 1:1 fully matched original mounting lugs, high-voltage plug and refrigerant pipeline interface, zero modification required during installation
   5. Strict high-voltage insulation production process, effectively avoid electric leakage safety risks during long-term vehicle operation
   6. Single exclusive OEM number dedicated to VF e34 model, simplify warehouse spare parts matching and customer parts lookup efficiency

   Package Includes

   1 × BENLING High Voltage Electric A/C Compressor EM34A1-L4002X (Matching VinFast OEM PWT30111101)

    

   Pre-installed high/low pressure refrigerant port special sealing O-rings, factory pre-filled EV dedicated POE refrigeration oil inside compressor body

   Installation Guidance

   1. Critical Safety Operation: Complete high-voltage battery power discharge and isolation operation in accordance with VinFast official maintenance specifications, wear professional high-voltage insulating protective gloves and protective clothing
   2. Fully recover R1234yf refrigerant inside the whole vehicle AC circuit through refrigerant recovery machine
   3. Remove front bumper and lower radiator guard plate to expose compressor assembly position
   4. Disconnect high-voltage HV plug first, then separate refrigerant pipeline joints and compressor fixing bolts in sequence
   5. Install new Benling compressor, lock all pipeline joints and high-voltage connectors according to factory specified torque standard
   6. Use vacuum pump to evacuate AC system for no less than 90 minutes to thoroughly remove internal pipeline moisture
   7. Refill specified capacity R1234yf refrigerant and matched volume EV POE refrigeration oil according to VinFast service maintenance manual parameters
   8. Reactivate vehicle high-voltage power supply system, use VinFast special diagnostic instrument to clear AC and high-voltage related fault codes, complete compressor communication matching calibration
   9. Test cooling effect under static charging, idle and driving conditions respectively, inspect all pipeline connection positions for refrigerant leakage

   Warehouse SKU

   VINFAST-EV-AC-COMP-BENLING-EM34A1-L4002X-PWT30111101-VFE34