Coolant Hose BMW F80 M3 F82 M4 S55 Petrol Turbo Cooling Pipe Line 7848505

BMW F80 M3 F82 M4 S55 Turbo Coolant Hose is an original cooling system component designed for the S55 gasoline engine used in the sporty BMW M3 F80 and M4 F82 models. Designed as part of the factory system, it ensures stable heat dissipation from the turbocharging area and supports the safe operation of the powertrain under high loads. This is a practical solution for users who want to maintain structural consistency and operating parameters in line with the manufacturer's standards.

Specifications and technical data

• SKU: 7848505
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7848505
• Substitutable numbers: 7848505, 11537848505, KD
• Fuel type: Petrol
• Category: Coolant Hoses

Purpose and Function in the Cooling System

The hose belongs to the group of Cooling System Hoses and Pipes and is responsible for directing the coolant in the turbocharger area. In the S55 gasoline engine, which operates under high boost, proper turbo cooling is crucial for maintaining stable exhaust temperatures, protecting bearings, and reducing the risk of overheating auxiliary components.

Thanks to its tailored geometry and appropriate inner diameter, the hose ensures:

• controlled coolant flow in the turbo zone,
• maintenance of proper operating temperature during dynamic driving,
• consistency with the factory BMW cooling system for the S55 unit.

Compatibility with S55 (Gasoline) Unit

The component is designed to work with the S55 gasoline engine, which features an advanced boost system and an extensive cooling system. Using a hose that complies with factory specifications allows for:

• correct routing of the cooling lines in the engine bay,
• proper positioning relative to the turbocharger and other components,
• compatibility with original connectors and system nipples.

This solution is particularly important in cars driven dynamically, where thermal stability directly impacts the durability of the powertrain.

Characteristics of an Original BMW Part

As a BMW product, the turbo coolant hose is manufactured according to the vehicle manufacturer's requirements regarding materials, diameters, and shape. This means maintaining factory flow parameters and proper fit for mounting points and routing in the engine bay, without the need for installation modifications.

An original OEM part also means:

• consistency with service documentation and cooling system diagrams,
• easier future diagnostics (mechanics work with a known, factory solution),
• retention of the design intended for high thermal loads in M3/M4 models.

Condition, Service Application, and Benefits of Installation

The hose is offered as a used original part, which is a sensible compromise between repair cost and maintaining factory specifications. It is suitable for both standard replacement of a worn cooling system section and for repairs after turbocharger failure or system overheating.

In practice, installing such a hose allows for:

• restoring proper coolant circulation in the turbo zone,
• reducing the risk of leaks resulting from ill-fitting aftermarket parts,
• maintaining cooling system operating parameters in line with BMW's design for M3 F80 and M4 F82 models.

Technical Support and Additional Knowledge

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other parts from the same group, such as additional coolant hoses, pipes, or connectors, check the available parts in the BMW Cooling System Hoses and Pipes category.

To better understand how ambient temperature affects cooling efficiency in a turbocharged car, consult our guide: Summer Heat vs. Cooling System: Used Radiators and Fans Guarantee Savings. For drivers interested in the broader context of using original components in repairs, the article on the importance of used original OEM parts for car safety and durability will also be helpful.