Fuel Tank Interior Cap W/ Base 2136302503 For Mercedes E Class W213 2016-2023

Fuel Tank Interior Cap with Base for Mercedes

This replacement inner fuel tank cap and base assembly seals the fuel filler neck, cross-referencing to part number 2136302503.

Overview

This replacement fuel tank interior cap with base secures the evaporative emissions system to prevent fuel vapor leaks. Built to match precise factory dimensions, this fuel tank interior cap with base ensures a tight seal to prevent check engine lights related to pressure loss. It is designed for vehicle owners and repair shops performing emission system maintenance.

Built For Performance

• Durable polymer construction resists deterioration from modern fuel additives
• High-quality rubber gasket provides a reliable, airtight seal
• Integrated retaining leash prevents loss during refueling stops
• Direct replacement base design for a simple, trouble-free installation

Fits These Machines

• for Mercedes E Class W213

On-The-Job Use

• Replacing damaged or worn fuel caps causing pressure loss codes
• Restoring the evaporative emissions seal on luxury passenger cars
• Replacing broken fuel cap retaining tethers during routine service

Specs At A Glance

Good To Know

Q: Can a loose fuel cap cause a check engine light? A: Yes, an improper seal allows fuel vapors to escape, which triggers onboard diagnostic warning lights.

Q: Does this assembly include both the cap and the mounting base? A: Yes, it comes complete with the inner cap, base, and retaining leash for a full replacement.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.