Audi A4, A5, Q5, RS5 - Radiator Expansion Bottle

Description

High-performance Radiator Expansion Bottle (OEM 8W0121405L) engineered for durability and precision within the high-pressure cooling systems of modern Audi models.

This coolant reservoir is specifically designed for the B9 platform, managing thermal expansion and maintaining the integrity of the pressurized cooling circuit. Featuring a robust, multi-chambered construction that is highly resistant to extreme temperature fluctuations and high operating pressures, it ensures optimal engine cooling and prevents premature component failure. Its high-grade plastic build makes it an ideal solution for cooling system maintenance under demanding South African operating conditions.

Compatible Vehicles

Audi A4 / A4 Quattro (B9 / 2016 – Present)

Audi A5 / A5 Sportback (F5 / 2017 – Present)

Audi Q5 (FY / 2017 – Present)

Audi RS4 / RS5 (B9 Models)

Specifications

OEM Reference No.: 8W0121405L / 8W0-121-405-L

Alternative Part Numbers: 8W0121405G / 8W0121405F

Type: Pressurized Coolant Expansion Tank

Material: High-Grade Heat and Pressure Resistant Composite

Fitting: Direct Replacement for B9 Platform

Fast and reliable delivery available across South Africa.