4-Pin 357919754 VW Waterproof 3.5mm Temperature Sensor Connector – AC Assembly Harness
Direct-fit replacement for Volkswagen OEM part number 357919754, a 4-pin waterproof 3.5mm pitch connector used for temperature sensor and AC assembly harness connections on VW Group vehicles. The 357 prefix identifies this as a VW Passat (B3/B4) platform part, though the connector is used across multiple VW Group platforms.
Key Specifications
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OEM Part Number: 357919754
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Pin Count: 4
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Gender: Female socket (with wire)
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Terminal Pitch: 3.5mm
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Wire Gauge: 18 AWG (0.5 mm²)
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Wire Length: 5.5 inches (140 mm)
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Waterproof Rating: IP68
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Housing Material: PA66 glass-filled nylon
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Terminal Material: Copper alloy, tin-plated
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Current Rating: Up to 10A per pin
VW Part Number Decoded – 357919754
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357 – Vehicle platform code (VW Passat B3/B4)
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919 – VW commodity code for temperature sensors and related harness
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754 – Specific connector variant
Compatible VW Applications
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VW Passat (B3/B4, 1988–1997): Coolant temperature sensor and AC assembly harness
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VW Golf (MK2/MK3): Shared platform temperature sensor wiring
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VW Jetta (MK2/MK3): Engine temperature sensor harness
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VW Vento: AC assembly and temperature sensor connectors
Fault Codes Linked to 357919754 Connector Failure
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P0116–P0118 – Engine Coolant Temperature (ECT) sensor circuit faults
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P0530–P0532 – AC Refrigerant Pressure Sensor circuit (if used for AC assembly)
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VCDS fault: 00537 – Coolant Temperature Sensor (G62) implausible signal
Frequently Asked Questions
Q: What diagnostic tool is needed for VW fault codes?
A: Use VCDS (Ross-Tech) for VW-specific fault codes and live data. Standard OBD2 scanners may not access all VW-specific modules.
Q: What crimping tool is needed for 3.5mm terminals?
A: Use a ratchet crimper rated for 18 AWG (0.5 mm²) – Engineer PA-09 or equivalent precision ratchet crimper.
Package Contents
1 × 4-Pin Female Connector (357919754) with 18 AWG wire and terminal insert
