Custom Fit. Coolant Reservoir Water Expansion Tank suitable for Audi S4 2013-2015 V6 3.0L, for Audi S5 2012-2016 V6 3.0L, for Audi S5 2017 V6 3.0L, for Audi SQ5 2014-2017 V6 3.0L.
OE Number:8K0121405N/8K0121405Q/8K0121405F; It's non-OEM part, but this Coolant Reservoir Water Expansion Tank is design for precise fitting for Audi S5 series and others.
Long Lasting Coolant Radiator Reservoir Tank. Made of fine PP that keeps it durable, reliable and functional accessories for running your vehicle smoothly
Installation. 1. Turn off and cool down the car, remove the bolts and the reservoir; 2. Allow the remaining coolant to flow back into the drain pan; 3. Replace the new reservoir tank and reinstall the coolant hose to the radiator and tighten the clamp; 4. Finally check if function well.