Car Expansion Tank Cap Radiator Cover For BMW 3 Series Replacement Auto Accessories

Does the expansion tank cap need to be replaced regularly?

If the cap is intact, it can be reused, but the cap is designed to release pressure when the pressure inside the expansion tank rises too much, so if the cap is not opened, the expansion tank will crack and leak. But the expansion tank itself may deteriorate over time, or the pressure on the cap cannot be continuously controlled, causing the weak part of the expansion tank to crack sometimes. So, I think it's time to replace it when you think it's best to replace it while checking the condition of the cap gasket.

Fitment:

For BMW 3 Series E30 325i (02/1989 - 12/1992) 

For BMW 3 Series E36 (11/1989 - 08/2000)

For BMW 3 Series E46 330ci (04/1997 - 08/2006) 

*Please check the manufacturer's part number (usually stamped on the plastic or body) before ordering.*

Package Included:
1x Radiator Expansion Tank Cap


Features:
1. Improve the radiator pressure and cooling performance.
2. Silicone rubber for good sealing.
3. Perfectly match the old water tank cap and easy to replace.

Specifications:
Condition:New
Type:Radiator Expansion Tank Cap
Material: Plastic+Rubber
Pressure Rating：2.0 Bar
Item Weight: 0.06kg
Color:black
Fitment Type: Direct Replacement