Mercedes-Benz A-Class W168 Automatic Transmission Gearbox Left Oil Cooler Hose

Mercedes-Benz A-Class W168 Automatic Transmission Gearbox Left Oil Cooler Hose is an original component of the transmission lubrication and cooling system, designed for use with an automatic transmission. It ensures stable oil flow to the cooler, supporting safe operating temperatures for the gearbox and proper drivetrain performance. This is a practical service solution for users looking to restore correct oil circulation in the transmission without unnecessary modifications.

Specifications and technical data

• SKU: A1683700696
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1683700696
• Substitutable numbers: A1683700696, A 168 370 06 96, BG
• Location on the vehicle: Left
• Gearbox type: Automatic
• Category: Automatic Transmission

Purpose and function in the drivetrain

The oil cooler hose is a component of the transmission oil cooling system in the Mercedes A-Class W168 model with an automatic transmission. It is responsible for transporting oil between the gearbox and the cooler, which helps maintain a stable operating temperature and reduces the risk of transmission overheating during city and highway driving.

Precise fitment for the specific body model and transmission type facilitates installation and allows for maintaining the factory routing of hoses in the engine bay, without the need for adapters or system modifications.

Vehicle placement and fitment

The component is designed for installation on the left side of the vehicle, in accordance with the factory hose routing in the Mercedes A-Class W168. Proper placement is important for:

• correct connection to the automatic transmission and cooler ports,
• maintaining appropriate hose bending radii,
• avoiding interference with other components in the engine bay.

Thanks to a design consistent with the manufacturer's original specifications, the hose works with factory brackets and mounts, which simplifies service and reduces the time required for replacement.

Technical characteristics and benefits

The Mercedes-Benz A-Class W168 Automatic Transmission Gearbox Left Oil Cooler Hose has been designed for stable operation of the drivetrain system. The appropriate internal diameter and hose construction support proper oil flow, which translates into:

• maintaining correct pressure in the automatic transmission oil circuit,
• efficient heat dissipation to the cooler,
• reducing the risk of transmission performance loss under load.

Using a component consistent with the manufacturer's design helps maintain factory transmission operating parameters, which is particularly important during city operation, frequent starts, and gear shifts.

Condition, origin, and service application

The offered hose is an original used Mercedes part, sourced from disassembly, intended for service applications in vehicles equipped with an automatic transmission. Choosing an original component from the secondary market allows for maintaining compliance with factory specifications while optimizing repair costs.

The component is suitable both for replacing a damaged or leaking hose and for comprehensive maintenance of the transmission oil cooling system, e.g., after transmission overheating or during planned preventive replacement of critical components.

Comprehensive transmission system service

If you are planning a comprehensive repair or upgrade of the drivetrain area in your Mercedes and need other components from the same group, such as oil lines, housings, or complete transmissions, check out the available parts in the Mercedes Automatic Transmissions category.

When planning service work, it is also worth familiarizing yourself with issues related to transmission operation and replacement – you can find practical tips on the cost-effectiveness of purchasing original used components compared to remanufacturing in the article Manual transmission failures in cars – why is an original used part a more sensible choice than remanufacturing?.