VW Volkswagen Touran Webasto Auxiliary Heater Exhaust Silencer Muffler 9001800D

Visual condition of the part

The product shows signs of use visible in the photos.

VW Volkswagen Touran Webasto Auxiliary Heater Exhaust Silencer Muffler is an original auxiliary heating system component designed to work with factory-fitted Webasto parking heaters in Volkswagen models. Thanks to its precise fitment to the vehicle's installation, it ensures stable exhaust gas discharge from the heater unit, which translates into safe and predictable operation of the entire system. This is a practical solution for workshops and users who want to restore the full functionality of the factory heating system in their car.

Specifications and technical data

• SKU: 9001800D
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 9001800D
• Substitutable numbers: 9001800D, 900 1800 D, 1K0815065AG, 1K0 815 065 AG
• Category: Additional Blower & Fan Parts

Purpose and function in the Webasto system

The presented VW Volkswagen Touran Webasto Auxiliary Heater Exhaust Silencer Muffler is responsible for discharging exhaust gases from the heater module outside the vehicle body and reducing the noise generated during the operation of the parking heater. A properly selected component of this type:

• stabilizes the acoustics of the parking heater operation,
• reduces the transmission of vibrations to the body,
• supports safe exhaust discharge outside the passenger zone,
• maintains the design-compliant routing of the Webasto installation under the vehicle.

By maintaining the factory geometry and pipe diameter, the auxiliary heating system retains the exhaust flow parameters intended by the manufacturer, which promotes stable ignition and smooth operation of the unit.

Original origin and fitment

The element comes from the Volkswagen line, which means compliance with factory manufacturing and assembly standards. An original part from this group:

• fits factory brackets and mounts in the chassis,
• maintains the correct routing relative to other lines and shields,
• minimizes the risk of collision with other exhaust system or suspension components.

For workshops, this means predictable installation time and no need for modifications, and for the user – maintaining a design consistent with the vehicle manufacturer's specifications.

Performance and assembly characteristics

As a used Webasto system component, the product is an economical solution for parking heater repairs, especially in vehicles used intensively or with higher mileage. The exhaust silencer in such an application:

• allows for restoring the continuity of the exhaust system after damage or corrosion of the previous element,
• reduces the risk of exhaust gases entering the area around the cabin floor,
• ensures stable mounting of the heater unit in the position intended by the manufacturer.

Selecting parts according to the OEM number or interchangeable numbers allows for precise matching to the specific vehicle configuration and parking heater version, which is particularly important when working with Webasto installations in the Volkswagen group.

A safe choice for used parts

In the case of elements such as the Webasto exhaust silencer, using a used part is often a rational compromise between repair costs and maintaining the original system specifications. When selecting components of this type, it is worth being guided by:

• compliance with the OEM part number,
• belonging to the same parking heater system family,
• consistency with factory mounts in the chassis.

If you want to better understand the differences between refurbishment and installing original dismantled parts and apply this to service practice, read the article: Refurbished or original used – which part to choose for repairs?.

Support with selection and repair expansion

If you are planning a comprehensive repair or upgrade of the parking heater area in your Volkswagen and need other elements from the same group, such as exhaust pipes, additional pipe sections, or mounting elements, check the available parts in the category Other parts for Volkswagen blowers and fans.

When purchasing components from the secondary market, a practical guide describing how to safely verify part compatibility by numbers and categories may be helpful – you can find it here: Safe purchase of used car parts online – a step-by-step guide.