5Q1816738B AC Hose for VW Golf Seat Leon

5Q1816738B AC Hose for VW Golf Seat Leon

Product Overview

The 5Q1816738B Air Conditioning Hose is a precision-engineered HVAC refrigerant line designed for VW Golf and SEAT Leon platforms. It serves as a critical conduit within the vehicle’s air conditioning system, ensuring stable refrigerant transfer for consistent cabin cooling performance under varying operating conditions.

Material & Structural Description

• Multi-Layer Composite Hose Construction: Built with an inner refrigerant-resistant rubber layer, reinforced textile/metal braiding, and an outer protective rubber shell to balance flexibility and pressure resistance.
• High-Grade Elastomer Materials: Uses automotive-grade synthetic rubber compounds designed to resist R134a/R1234yf refrigerants, compressor oil, and long-term thermal aging.
• Reinforced Pressure-Carrying Structure: Integrated reinforcement layers enhance burst resistance and maintain dimensional stability under high-pressure cycling within the HVAC system.
• Precision-Molded Metal Fittings: Aluminum or steel end fittings are engineered for accurate interface alignment, ensuring secure sealing and minimizing vibration-induced stress.
• Thermal & Abrasion Protection Design: Outer layer formulated to resist engine-bay heat exposure, road debris impact, and friction wear over long service life.

Manufacturing Process Capabilities

• Automated Vulcanization Process: Rubber layers are formed under controlled temperature and pressure conditions to ensure consistent elasticity, bonding strength, and structural integrity.
• Precision Crimping & Assembly Technology: End fittings are attached using high-accuracy hydraulic crimping equipment, ensuring uniform sealing force and long-term joint reliability.
• Leak Testing & Pressure Validation: Each hose assembly undergoes helium or high-pressure air leak detection to guarantee zero refrigerant leakage risk.
• Dimensional & Tolerance Control: CNC-assisted tooling and inline inspection systems ensure tight dimensional tolerances for OEM-level installation compatibility.
• Batch Traceability & Quality Control System: Each production batch is tracked through material lot coding and process records, ensuring consistent quality and full traceability.

Quality Assurance & Trading Terms

• Strict QC & Warranty: Every hose undergoes 100% high-pressure testing to ensure zero leaks and is backed by a 50,000 km mileage warranty.
• Manufacturing Standard: Produced strictly according to OEM specifications for precise fitment and easy installation.
• Order Details (MOQ): Minimum Order Quantity is 100 PCS, with a production lead time of 45 - 60 days.
• Global Service: We offer full OEM/ODM support (custom branding/drawings) and currently export to over 30 countries worldwide.

Why Partner With Us?

• Factory Direct: Competitive pricing with consistent quality control.
• Reliability: Premium materials (Steel braiding + Oil-resistant rubber) ensure the hose lasts longer than generic alternatives.
• Experience: Extensive experience in serving global markets with a focus on European vehicle applications.

FAQ:
1. Q: How about your Quality Controlling System?

A: Each step of our production process have the quality checking workers. They will check the products one by one before going to next production step. And before package, our QC workers will choose 15% of the cargo to check the quality again to make sure the cargo is with good quality. If the 15% products have around 1% with defects, we will recheck all pieces of the cargo. And our quality warranty is 2 years. If any quality issues feedback from our customers, we will fully take charge of it.

2. Q: How long is your delivery term?
A: Our standard product delivery term is normally 30 days.A new product development is 60days including the mass production. Under normal circumstances there are standing stock for regular types.You can email us to learn more details.

3. Q: How many years is your company in auto parts business field?
A: Our Company started since 2005,there is about 19 years history forus in auto parts business field.

4. Q:Are you trading company or factory?
A: We are factory with trading company.

5. Q:What's the MOQ for each item?
A: Our business way is spot sales,if the items we have stock,there is no limitation for MOQ to be manufactured based on your order.

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