Mercedes Benz S W220 Left Gearbox Oil Cooler Pipe Line Hose Diesel A6131801030

Mercedes Benz S W220 Left Gearbox Oil Cooler Pipe Line Hose Diesel is an original drivetrain component, designed specifically for diesel engine models. As part of the Oil coolers and hoses group, it is responsible for the stable discharge of oil from the gearbox to the cooler, which helps maintain the proper operating temperature. This used OEM component is a sensible choice when servicing the automatic transmission in a W220 generation S-Class Mercedes.

Specifications and technical data

• SKU: A6131801030
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6131801030
• Substitutable numbers: A6131801030, A 613 180 10 30, BG
• Location on the vehicle: Left
• Fuel type: Diesel
• Category: Oil Coolers & Lines

Purpose and function in the oil cooling system

This left gearbox oil cooler pipe is dedicated to Mercedes cars with a Diesel engine, in the S-Class W220 body style. It is responsible for transporting transmission oil between the gearbox and the oil cooler, which allows for maintaining stable transmission operating parameters during city and highway driving.

A correctly selected pipe in this location is crucial for:

• maintaining the proper oil temperature in the gearbox,
• reducing the risk of transmission overheating,
• maintaining smooth gear shifting in diesel engines,
• extending the service life of internal gearbox components.

Construction and fitment for the Mercedes S W220

The pipe has been designed as a component mounted on the left side of the vehicle, with geometry adapted to the factory routing in the Mercedes S-Class W220. This ensures the correct oil flow path and collision-free routing relative to other components in the engine bay and chassis.

Its original Mercedes origin means compatibility with factory mounting points and the operating parameters of the gearbox oil cooling system. This is particularly important in the case of diesel units, where the thermal loads on the transmission are higher than in many gasoline versions.

Benefits of using an original oil cooler pipe

Using a dedicated pipe in the gearbox oil cooling system of a Mercedes S W220 brings measurable operational benefits:

• Stable gearbox operation – proper oil flow through the cooler helps maintain consistent gear shifting parameters.
• Better transmission protection – limiting oil overheating reduces the risk of accelerated wear of discs, valves, and seals.
• Consistency with factory design – an original element from the Oil coolers and hoses group allows for maintaining the characteristics designed by the manufacturer.
• Reasonable service costs – a used OEM component is a compromise between quality and budget when performing repairs on diesel-engined cars.

Operation, installation, and use in diesel engine cars

The pipe is intended for operation in a system supplied with transmission oil in cars with a diesel unit. Proper positioning on the left side of the vehicle and matching the factory connectors facilitates installation in workshop conditions. During replacement, it is recommended to check the tightness of the entire oil cooling circuit and the condition of the cooler itself.

In vehicles with a diesel engine, such as the Mercedes S W220, the gearbox oil cooling system is of particular importance when driving under load, towing, or during long-distance highway driving. A functional oil cooler pipe helps maintain predictable transmission behavior and reduces the risk of costly repairs in the future.

More solutions from the oil cooling category and technical advice

If you are planning a comprehensive repair or upgrade of the drivetrain and oil cooling area in your Mercedes and need other elements from the same group, such as hoses, oil coolers, or additional installation sections, check the available parts in the Mercedes Oil coolers and hoses category.

To better understand the importance of a functional cooling system in a car, also in the context of gearbox and transmission oil operation, it is worth reading the guide on our blog: Summer heat vs. cooling system: used coolers and fans as a guarantee of savings.