Rein EPT0236 Engine Coolant Reservoir

OE-Style Coolant Reservoir for Smart Fortwo

Rein EPT0236 is an engine coolant reservoir for select 2005-2016 Smart Fortwo models. It is built as an OE-quality expansion tank using virgin plastic to help resist cracking from repeated heat cycles and maintain long-term durability.

With a natural plastic finish, twist-on cap design, and direct-fit form, this reservoir is made for Smart Fortwo cooling system service where the original tank has become brittle, split, or leaking.

Key Features

• Engine coolant reservoir / expansion tank
• Fits 2005-2016 Smart Fortwo, N/A
• Plastic construction in natural color
• Twist-on cap type
• Cap not included
• Mounting hardware not included
• Mounting brackets not included
• Rein part number EPT0236

Detailed Description

Rein EPT0236 is engineered as an OE-quality replacement coolant reservoir for the Smart Fortwo cooling system. The tank is molded from virgin plastic rather than regrind material, which helps improve resistance to heat-cycle stress and supports a longer service life. For owners searching for a Smart Fortwo coolant expansion tank, Smart Fortwo engine coolant reservoir, or Rein EPT0236 replacement tank, this part provides the correct style and fitment for the listed vehicles.

This part cross-references 4505010003 for the same application.

Common Cooling System Issues

• Cracked or split coolant reservoir
• Coolant loss from tank seepage or leaks
• Discolored, brittle, or heat-damaged expansion tank
• Low coolant warnings caused by reservoir failure
• Service replacement after a damaged OE tank

Installation Notes and Tips

Verify the existing reservoir matches the twist-on cap style and the listed Smart Fortwo application before installation. Transfer any reusable components as needed, since the cap is not included and mounting hardware is not included. Inspect hoses, clamps, and nearby cooling system parts for wear before filling and bleeding the system.

Quality Assurance

Rein Automotive positions this reservoir as an OE-quality replacement built to match or exceed original material standards for fit, form, and durability.