BMW E38 Suction Pipe Evaporator Compressor 8378651

BMW E38 Evaporator Compressor Suction Pipe is a specialized component of the air conditioning system, designed to work with the compressor and evaporator in the 7 Series E38 models. It is responsible for the efficient suction of refrigerant in the circuit, which translates to stable compressor operation and predictable air conditioning performance in a BMW car.

Specifications and technical data

• SKU: 8378651
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8378651
• Substitutable numbers: 8378651, 64538378651
• Tire profile: 65535
• Category: A/C Compressors & Clutches

Purpose and Function in the Air Conditioning System

The BMW E38 Evaporator Compressor Suction Pipe is a low-pressure component of the air conditioning system, connecting the evaporator to the compressor. Its function is to ensure proper flow of refrigerant in its gaseous phase, so that the compressor operates under stable conditions and maintains correct pressure parameters.

A correctly selected suction pipe is crucial for:

• maintaining even compressor load across the entire operating range of the system,
• limiting pressure drops between the evaporator and the compressor,
• preserving the air conditioning system's seal over a long period of operation.

Category: BMW Air Conditioning Compressors and Clutches

This component belongs to the Air Conditioning Compressors and Clutches category, meaning it is directly related to the operation of the compressor and its accessories. Replacement of the suction pipe is recommended, among other things, during:

• air conditioning compressor service or replacement,
• detection of leaks in the suction circuit,
• upgrades or repairs to the system after compressor failure.

If you are looking for other components in the BMW Air Conditioning Compressors and Clutches category, check out our offer: BMW Air Conditioning Compressors and Clutches.

Characteristics of the Used Component

The offered suction pipe is from a dismantled vehicle and is intended for reinstallation after verification by a mechanic. A used component allows for:

• reduced air conditioning system repair costs while maintaining original geometry and fit,
• preservation of factory routing of lines in the engine bay,
• easier installation due to compatibility with original mounting points.

Before installation, standard service procedures are recommended: leak testing, replacement of seals at connection points, and a pressure test of the entire system.

Integration with Other Components

The Evaporator Compressor Suction Pipe for BMW E38 works in conjunction with the evaporator, compressor, and other low-pressure lines. A correctly selected component:

• minimizes the risk of vibrations and stresses in the air conditioning system,
• facilitates maintaining proper refrigerant charge by preserving the correct system volume,
• supports stable evaporator temperature, which contributes to thermal comfort inside the vehicle.

Used Components vs. Service Economy

Choosing used air conditioning system components, such as suction pipes or compressors, is often a sensible compromise between cost and functionality. For more on a practical approach to purchasing used premium parts, including air conditioning compressors, see the article: Used Mercedes Parts – Original Components from Dismantling vs. Repair Profitability.