Description
UMAX PRO 8K0-121-405E Coolant Bottle – Audi Coolant Expansion Tank
The UMAX PRO 8K0-121-405E Coolant Bottle is an automotive coolant expansion tank designed for selected Audi engine cooling systems. It serves as a coolant reservoir, helping accommodate changes in coolant volume as the engine heats up and cools down.
Designed for cooling system maintenance and replacement, this expansion tank corresponds to Audi OE reference 8K0121405E. It features a heat shield for the corresponding OE application and helps maintain proper coolant storage and cooling system operation when correctly installed.
Key Product Features
- Brand: UMAX PRO
- Part Number: 8K0-121-405E
- Product Name: Coolant Bottle
- Product Type: Coolant Expansion Tank / Coolant Reservoir
- Product Category: Engine Cooling System
- OE Reference: Audi 8K0121405E
- Design: Coolant reservoir with heat shield for the corresponding OE application
- Vehicle Application: Selected Audi A4, A4 Allroad, A5 and Q5 models
- Function: Coolant storage and expansion management
- Installation: Professional installation recommended
Product Benefits
- Provides a reservoir for engine coolant.
- Helps accommodate coolant expansion and contraction during temperature changes.
- Designed for compatible Audi engine cooling systems.
- Heat shield helps protect the reservoir in applications requiring additional heat protection.
- Suitable for coolant reservoir replacement and cooling system maintenance.
- Helps maintain proper cooling system operation when correctly fitted.
Vehicle Compatibility
OE reference 8K0121405E is associated with selected Audi applications, including:
- Audi A4 B8
- Audi A4 Allroad B8
- Audi A5 and A5 Sportback
- Audi Q5 8R
This reference is particularly associated with certain V6 engine configurations, including selected 2.7 TDI and 3.0 TDI applications. It is not suitable for every engine variant.
Before purchasing the UMAX PRO 8K0-121-405E Coolant Bottle, compare the OE reference with your existing component and verify compatibility using your vehicle identification number (VIN).
Why Choose UMAX PRO 8K0-121-405E Coolant Bottle?
Choose the UMAX PRO 8K0-121-405E Coolant Bottle as a replacement option for a compatible Audi cooling system. Correct part selection and professional installation help maintain proper coolant reservoir operation and support effective engine cooling.
Installation Advice: Professional installation is recommended. Inspect coolant hoses, connections, the expansion tank cap and coolant level sensor during replacement. Follow the vehicle manufacturer’s recommended coolant type and filling procedure.
Important: Confirm that your specific UMAX PRO product matches the OE reference and required heat-shield configuration before ordering. Check whether the cap and coolant level sensor are included in the product package.
