1K0260839 1K0260839A 56D298008 A/C Compressor Control Valve for VW Scirocco and Passat: Diagnosis and OE Fitment Guide

QUICK ANSWER

A confirmed A/C compressor regulator-valve or N280 control fault should be confirmed through physical inspection and the workshop checks appropriate to this component before a replacement part is ordered. The same symptom can have more than one cause, so compare the installed component, all OE references, connections and vehicle information.

WHAT THIS PART DOES

The A/C Compressor Control Valve regulates the specified variable-displacement compressor so refrigerant pressure and cooling output can be controlled. Its role does not prove that it is the cause of a customer complaint; diagnosis must connect the observed fault to this component.

SYMPTOM SNAPSHOT

• Cooling output is inconsistent after refrigerant charge, leak and electrical checks
• Compressor control pressure does not follow the commanded state
• A regulator-valve fault is recorded for a compatible Sanden compressor
• The valve, connector or sealing interface is damaged during inspection

These symptoms are diagnostic clues, not a guarantee that this part has failed.

DIAGNOSIS BEFORE ORDERING

1. Identify the compressor manufacturer and model before ordering because the regulator valve is not universal
2. Check refrigerant charge, leaks, compressor wiring, control signal and stored HVAC faults
3. Distinguish the regulator valve from the compressor, clutch, expansion valve and refrigerant line
4. Compare valve geometry, connector, O-rings, compressor family and every OE suffix
5. Recover refrigerant and follow the approved HVAC service procedure before removal
6. After installation, evacuate, recharge and verify pressure, cooling output and leak-free operation

OEM REFERENCE

• 1K0260839
• 1K0260839A
• 56D298008

Every verified OE reference from the product record is retained. Revision letters and alternate numbers must not be discarded during comparison.

OE-SPECIFIC BUYING CHECK

• Volkswagen technical service information identifies 1K0260839 as the N280 refrigerant regulating valve used with specified Sanden A/C compressors.
• The valve is compressor-specific and is not compatible with every compressor family; confirm the installed Sanden unit before ordering.
• Diagnose refrigerant charge, leaks, wiring, control signal and compressor compatibility before replacing the regulator valve.

VEHICLE APPLICATION REFERENCES

• VOLKSWAGEN Scirocco
• VOLKSWAGEN Passat

Model names are reference points only. Production date, engine, market specification and connector changes can affect compatibility.

WHEN REPLACEMENT IS JUSTIFIED

Replacement is reasonable when inspection or workshop testing confirms damage or a functional failure that matches the role of this component. If the evidence conflicts with the product function, continue diagnosis instead of replacing the part.

RELATED PARTS TO INSPECT

• Sanden compressor, clutch and compressor wiring
• Refrigerant charge, leak points and expansion valve
• HVAC control module, pressure readings and service equipment

VIN CHECK

Confirm fitment using OE number and VIN before ordering.

For fitment questions, share the OEM part number, VIN number, or vehicle information with our team before ordering.

CHECK THE PART AND OE DETAILS

Review 1K0260839 / 1K0260839A / 56D298008 product images and fitment details.

WORKSHOP AND BULK ORDERS

Repair shops and distributors can send an OE list, quantities and vehicle information for fitment review and bulk-order support.