BMW 1 3 X1 SERIES E81 E84 E87 E90 Double Pipe Matrix Heater Radiator 64116947068

BMW 1 3 X1 SERIES E81 E84 E87 E90 Double Pipe Matrix Heater Radiator is an original cabin heating system component, designed specifically for BMW architecture. Thanks to its double pipe design and precise geometry, it provides a professional service solution when replacing a worn heat exchanger, ensuring stable performance of the air conditioning and heating system. As an original BMW part, it guarantees compatibility with factory equipment and vehicle installation.

Specifications and technical data

• SKU: rhd-6947068
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 64116947068
• Substitutable numbers: 64116947068
• Category: Other Air Conditioning & Heating

Purpose and function in the BMW heating system

The BMW 1 3 X1 SERIES E81 E84 E87 E90 Double Pipe Matrix Heater Radiator is responsible for efficient heat exchange between the coolant and the air directed into the vehicle interior. In BMW 1, 3, and X1 series models of the E81, E84, E87, and E90 generations, its proper operation translates into:

• efficient cabin heating in low outdoor temperatures,
• even distribution of warm air in the ventilation ducts,
• stable cooperation with the air conditioning system and automatic airflow control,
• maintaining the correct operating temperature in the coolant circuit.

Thanks to a design tailored to the E81, E84, E87, and E90 platforms, the heater integrates with the factory HVAC module housing without the need for installation modifications.

Construction and fitment for the 1, 3, and X1 series

The double pipe system in this heater radiator has been developed with the specific coolant flow path of BMW's compact bodies in mind. Properly shaped connectors and the exchanger body allow for:

• correct connection to factory coolant hoses,
• maintaining system tightness with proper installation,
• maintaining proper medium flow across the entire engine load range.

As an original BMW component, the radiator is optimized for flow, hydraulic resistance, and heat exchange surface area, which helps maintain heating parameters at the level intended by the vehicle manufacturer.

Characteristics of the used component

The offered heater is a second-hand part sourced from dismantling, which allows for an economical repair of the heating system while maintaining the original BMW specification. This type of component is particularly beneficial in the case of:

• maintenance repairs in older 1, 3, and X1 series vehicles,
• restoring the efficiency of the HVAC system after leaks or exchanger clogging,
• services where compliance with the factory vehicle design is a priority.

Using an original second-hand heater reduces the risk of fitment issues typical of aftermarket replacements with universal geometry.

Installation and maintenance tips

Replacing the heater radiator in a BMW E81, E84, E87, E90 series requires access to the ventilation module inside the cabin, therefore it is recommended to carry out the work in a workshop environment. To achieve stable system operation, it is worth:

• verifying the condition of coolant hoses and clamps before installation,
• thoroughly bleeding the cooling system after installation,
• checking the tightness of connections at various engine operating temperatures.

A properly installed heater radiator restores full cabin heating functionality, which is important for both driving comfort and safety (defogging windows, visibility).

System expansion and selection of other components

If you are planning a comprehensive repair or upgrade of the heating and air conditioning zone in your BMW and need other elements from the same group, such as additional exchangers, fluid hoses, or ventilation module housing elements, check the available parts in the Other BMW category.

For a comparison of technical solutions used in sports designs of other brands, including differences in cooling systems, brakes, and chassis, it is worth reading the structural analysis in the article Audi RS vs other models – what is hidden under the hood and chassis?, which helps to better understand the manufacturers' approach to designing key vehicle systems.