Citroën Relay III Heater Matrix Radiator 2.2 Diesel DW12RUD 168310100

Citroën Relay III Heater Matrix Radiator 2.2 Diesel DW12RUD is a component from the Heat exchangers group, responsible for the efficient transfer of thermal energy in the cabin heating system. By being matched to the 2.2 Diesel engine unit, it ensures stable operating conditions for the cooling system and thermal comfort inside the vehicle. This used OEM part is a sensible choice for drivers looking for a technically verified solution at an attractive price.

Specifications and technical data

• SKU: 168310100
• Mark: Citroën
• Condition: Used
• OEM Part Number: 168310100
• Substitutable numbers: 168310100, 168 310 100
• Fuel type: Diesel
• Part type: Heater Core
• Category: Heater Cores

Purpose and function in the heating system

The heater matrix in the Citroën Relay III is responsible for heat exchange between the coolant and the air directed into the cabin. In practice, this means that the efficiency of the interior heating, quick windshield defrosting, and the stable operation of the entire cooling system of the diesel engine depend on its performance. This component works with the fluid circuit in the Diesel engine, which requires resistance to higher thermal loads typical for diesel units.

Benefits of using an original heat exchanger

Using an original heat exchanger in the Citroën Relay III allows for maintaining factory fluid and air flow parameters, which translates into predictable heating system behavior. The OEM design ensures:

• proper fitment to the heater housing and cooling system hoses,
• stable heat exchange under typical diesel engine operating loads,
• compatibility with factory airflow control and temperature regulation.

Thanks to this, the installation process is straightforward, without the need for system modifications or the use of adapters.

Performance characteristics in a Diesel engine

In a vehicle with a 2.2 Diesel engine, the heater operates under conditions of elevated temperature and prolonged load, especially in commercial applications. A properly selected heat exchanger:

• maintains a stable fluid temperature in the cabin circuit,
• reduces the risk of local overheating in the system,
• supports uniform heating of the cargo and passenger space.

This is particularly important in vehicles operated in urban and mixed driving modes, where frequent starts and stops require the heating system to function efficiently.

Condition, origin, and service application

The offered heater matrix is a used component, sourced from dismantling, which allows combining the functionality of an OEM part with a cost-effective repair. This type of component is particularly useful in situations where a quick replacement of a damaged heater is necessary, and the priority is to maintain the original system design. Choosing a used heat exchanger is effective both for routine repairs and for comprehensive servicing of the heating system in fleet vehicles.

Support in selection and repair time optimization

When selecting a heater for the Citroën Relay III, it is crucial to match it to the specific diesel engine version and cooling system configuration. The availability of used OEM components allows for reducing vehicle downtime in the workshop and lowering service costs. If you want to learn how the presence of used parts in stock affects the pace of repairs, it is worth reading the article on the impact of used OEM parts availability on vehicle repair time.

If you are planning a comprehensive repair or modernization of the cooling and heating area in your Citroën and need other elements from the same group, such as additional heaters, auxiliary radiators, or other exchangers, check the available parts in the Citroën Heat exchangers category.