BMW Z4 Series E85 Roadster 2.0i N46 Manual 6 Speed Gearbox GS6-17BG WARRANTY

Listing details

The differential is sold with a 90-day warranty! It was tested before removal and is in full working order.

BMW Z4 Series E85 Roadster 2.0i N46 Manual 6 Speed Gearbox GS6-17BG WARRANTY is an original manual transmission from the Manual gearboxes range, designed for the N46 petrol engine in the BMW Z4 E85 2.0i model. This is a solution for users who expect precise mechanism operation, the preservation of factory gear-shifting characteristics, and high compatibility with the drivetrain.

Specifications and technical data

• SKU: 7629518-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7629518
• Substitutable numbers: 23007629518, 7629518, 23007570574, 7570574, 23007564149, 7564149, 23007575050, 7575050, 23007545051, 7545051, 23007565906, 7565906, 23007559139, 7559139
• Fuel type: Petrol
• Gearbox type: Manual
• Category: Manual Transmission

Purpose and technical specifications

The presented gearbox belongs to the BMW Manual gearboxes group and has been designed to work with the N46 petrol engine in the Z4 E85 2.0i model. The manual construction ensures a direct, mechanical connection to the drivetrain, which translates into clear feedback during gear changes and predictable vehicle behavior in various driving conditions.

The manual transmission type allows for full control over gear selection, which is particularly valued in sports-oriented cars such as the BMW Z4. The use of the dedicated GS6-17BG gearbox enables the maintenance of the correct torque characteristics and optimal engine RPM across the entire operating range.

Benefits of using an original BMW gearbox

Using an original gearbox in the BMW Z4 E85 2.0i N46 allows you to maintain the integrity of the entire drivetrain. The appropriate gear ratios, matched to the specific petrol engine, contribute to:

• stable acceleration across the full RPM range,
• predictable vehicle behavior at higher speeds,
• effective utilization of the power and torque of the N46 unit,
• comfortable, repeatable operation of the gear shifter.

By maintaining the factory configuration of the drivetrain, you can reduce the risk of improper interaction with other components, such as the clutch or half-shafts, which in practice translates into a more predictable installation and operation process.

Application in the BMW Z4 E85 2.0i N46 drivetrain

The manual GS6-17BG gearbox is designed to work with a petrol engine, meaning its characteristics have been adapted to the specifics of the N46 unit – the RPM range, power delivery, and typical load. Such matching is important for both driving dynamics and the durability of the entire system.

In practice, this translates into:

• consistent operation with the factory engine control system,
• appropriately selected gear ratios for city and highway driving,
• the ability to maintain the vehicle's original performance parameters.

Condition, origin, and installation aspects

The offered gearbox is a used item, sourced from a dismantled BMW vehicle. Such components are chosen by users who want to reduce repair costs while maintaining the original design and fitment for a specific model. In the case of manual transmissions, it is crucial to correctly select the variant for the engine version and body type – using a gearbox dedicated to the BMW Z4 E85 2.0i N46 facilitates this process.

Before installation, a standard workshop procedure is recommended, including checking seals, the level and quality of transmission oil, and mating components (clutch, slave cylinder, mounting bushings). This approach helps minimize the risk of additional service downtime after replacement.

Technical support and selecting a used gearbox

When choosing a used transmission, it is worth paying attention to compatibility with the specific engine version, fuel type, and gearbox type. For users who want to better understand the differences between manual and automatic gearboxes, as well as the cost-effectiveness of purchasing dismantled parts, the following article will be helpful: Used gearbox – when is it worth it and what you need to remember.

If you are planning a comprehensive repair or upgrade of the drivetrain area in your BMW and need other components from the same group, such as housings, selector mechanisms, or mounting elements, check the available parts in the BMW Manual gearboxes category.