Vaico V10-3542 Engine Coolant Hose Flange

Engine Coolant Hose Flange for Audi TT

Vaico V10-3542 is an engine coolant hose flange made from plastic and shaped to match the OE-style cooling system connection used on select Audi TT models. With compact dimensions of 96 mm length, 70.5 mm width, and 39.5 mm height, it is built for a direct-fit replacement where the original coolant flange has worn, cracked, or begun to leak.

Compatible with 2003-2006 Audi TT applications listed below, this VAICO cooling system flange supports a clean hose connection and helps restore proper coolant routing. The VAICO product line focuses on OE-style replacement parts for European vehicles, and V10-3542 follows that approach with application-specific sizing and material selection.

Key Features

• Engine coolant hose flange for cooling system service
• Plastic construction for OE-style replacement fitment
• Dimensions: 96 mm length, 70.5 mm width, 39.5 mm height
• Designed for select 2003-2006 Audi TT models
• Cross-reference: OE number 1C0121087E
• Vaico part number V10-3542 for catalog matching and ordering

Detailed Description

Vaico V10-3542 is an engine coolant hose flange used at a cooling system connection point on the Audi TT. The flange’s plastic construction and OE-matched dimensions help it align with the original hose routing and mounting location, making it a practical replacement when the factory flange shows signs of age-related failure. This part cross-references OE number 1C0121087E for the same application. For buyers searching for an Audi TT coolant flange, Audi TT engine coolant hose flange, or V10-3542 replacement flange, this part provides a direct catalog match for the listed vehicles.

What It Helps Address

• Coolant seepage at a cracked or deteriorated flange
• Loose or poor hose connection at the cooling system outlet
• Loss of coolant from a damaged plastic coolant fitting
• Service issues caused by an aging OE coolant hose flange
• Replacement needs for Audi TT cooling system maintenance

Installation Notes and Tips

Verify the OE number 1C0121087E and compare the flange dimensions before installation. Inspect the mating hose, seals, and surrounding cooling system components for wear or contamination, and replace any damaged parts as needed during service. After installation, refill and bleed the cooling system according to the vehicle service procedure to confirm proper coolant flow and leak-free operation. Fits 2003-2006 Audi TT, N/A.

Quality Assurance

Vaico supplies OE-style replacement components for European vehicle applications, and V10-3542 is cataloged for the specified Audi TT fitment. Confirm part number V10-3542 against the vehicle’s original coolant flange and OE reference before ordering.