BMW E82 135i MTC Motorsport Oil Catch Tank Double Baffled Billet

BMW E82 135i MTC Motorsport Oil Catch Tank Double Baffled Billet is a specialized oil catch tank designed for crankcase ventilation systems in performance-oriented BMW engines. Thanks to its precise, billet-machined construction and dual-baffle system, this component allows for more stable engine operation and reduces contaminants in the intake system. This solution is aimed at users looking for proven track-ready components and a conscious upgrade of their ventilation system.

Specifications and technical data

• SKU: E82 135i MTC
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: E82 135i MTC
• Substitutable numbers: E82 135i MTC, MTC Motorsport, BG
• Location on the vehicle: Rear
• Category: Hoses, Lines & Pipes

Purpose and function in the ventilation system

The presented oil catch tank has been designed for use in the rear section of the vehicle, where it can be integrated into the crankcase ventilation circuit. Its task is to separate oil mist from the gases discharged from the engine before they reach the intake system again. This limits carbon deposit buildup, improves the cleanliness of the intake channels, and helps maintain stable engine performance under heavy loads.

The dual internal baffle system promotes more effective precipitation of oil particles from the flowing medium, which is particularly important in modified cars and those used in track conditions. The billet construction ensures a rigid, deformation-resistant housing, which facilitates maintaining the tightness of the entire system.

Billet construction and double-baffled configuration

The tank housing, manufactured using billet technology, means precise milling from solid material, which translates into stable geometry, dimensional repeatability, and good resistance to thermal and mechanical loads. This type of solution is widely used in motorsport, where parameter repeatability and ease of maintenance are paramount.

The internal dual-baffle layout creates an extended gas flow path, increasing contact time with the separating surfaces. As a result, the oil mist has more points to condense on before falling to the bottom of the tank. Such a configuration helps reduce the amount of oil returning to the intake, which is beneficial for both system cleanliness and performance consistency.

Integration with the Lines, hoses and pipes system

This component works in close cooperation with the Lines, hoses and pipes system, responsible for transporting gases from the crankcase to further sections of the installation. Proper installation requires matching diameters and routing the hoses in a way that minimizes kinks and unnecessary flow resistance. Proper integration with the existing installation allows for maintaining a balance between effective oil separation and free crankcase ventilation.

This type of solution is particularly useful in cars where the ventilation system operates under increased load, e.g., after software modifications or changes to engine peripherals. Organized hose routing and stable tank mounting promote trouble-free operation in the long term.

Product characteristics and application in BMW

The presented component is intended for use in BMW vehicles where the priority is to maintain the cleanest possible intake system while ensuring efficient engine ventilation. The use of an oil catch tank is particularly justified in vehicles driven dynamically, where frequent high RPMs and high thermal loads promote more intense oil vapor formation.

The product comes from the motorsport segment, which means it has been designed to work under increased load conditions. The user gains the ability to manage the ventilation system more consciously, and thus better control the amount of oil entering the intake.

Condition, fitment, and installation aspects

The offered tank is a used item, which in practice means that before installation, it is worth verifying the condition of the working surfaces, threads, and connection ports. This type of component, after proper preparation and installation, can continue to perform its function in a predictable and repeatable manner, provided that tightness is maintained and the hoses are routed correctly.

When planning the installation, it is important to consider the placement in the rear part of the vehicle to ensure sufficient service space for periodic tank emptying. Proper hose routing and the selection of mounting brackets reduce the risk of vibrations and leaks during long-term use.

If you are planning a comprehensive repair or upgrade of the ventilation system area and related hoses in your BMW and need other components from the same group, such as flexible hoses, rigid pipes, or additional installation sections, check out the available parts in the BMW Lines, hoses and pipes category.

For users who want to further verify component compatibility with a specific vehicle configuration based on OEM numbers, a guide describing practical methods for checking compatibility may be helpful – detailed tips can be found in the article Buying parts online without risk – 5 proven ways to verify component compatibility using OEM numbers and paint codes.