BMW 1 Series E82/E88 Upgraded Billet Aluminum DCT Transmission Pan – Fits 135i & 1M (N54 / N55 Engines) | Enhanced Cooling, Strength & Reliability Upgrade

The BAVMODS® Billet Aluminum DCT Transmission Pan is the definitive upgrade for your BMW E82/E88 135i and 1M. Designed for precision, performance, and durability, it replaces the fragile OEM plastic pan that’s notorious for warping and leaking under high heat — especially in tuned or track-driven cars.

Machined from a solid block of billet aluminum, this upgraded pan provides significantly improved thermal efficiency, ensuring your DCT transmission maintains consistent operating temperatures even under extended load. The rigid construction prevents deformation, while the finely machined sealing surface eliminates the risk of fluid seepage — a common failure point on the stock composite design.

The result? Sharper shifting, smoother operation, and greater long-term reliability, whether you’re daily driving or running laps at the circuit. Every pan is designed for an exact OEM bolt pattern, ensuring seamless installation using the factory filter, gasket, and hardware.

The E82/E88 135i and 1M are already legends for their power-to-weight balance and raw driving feel — this upgrade simply brings the transmission system up to the same level of performance and engineering precision.

Key Features & Benefits

• CNC-Machined Billet Aluminum Construction – Maximizes rigidity and prevents heat-induced warping common to OEM pans.
• Superior Cooling Performance – Deep fins and optimized fluid channels promote efficient heat transfer to reduce DCT fluid temps.
• Enhanced Fluid Stability – Keeps your DCT fluid within ideal temperature and pressure ranges for consistent performance.
• Long-Term Leak Prevention – Perfectly machined sealing surface maintains a secure, reusable seal.
• OEM+ Compatibility – Uses factory mounting hardware and filter for a simple, bolt-on installation.
• Built for Performance – Proven under track conditions, tuned setups, and spirited driving environments.

Performance You Can Feel

Drivers report smoother gear engagement, faster response, and lower transmission temperatures during spirited or extended driving sessions. The increased mass and cooling surface of the billet design help extend the life of both DCT fluid and clutch components — meaning less maintenance and more confidence behind the wheel.

Why It Matters

Your DCT is one of the most advanced components in your car — but also one of the most temperature-sensitive. The stock plastic pan simply wasn’t built for years of high-heat cycles or the demands of modern performance driving. The BAVMODS® Billet Aluminum DCT Pan solves that permanently, giving you both form and function in one upgrade — a cleaner underbody look, cooler fluid temps, and long-term protection for your gearbox.

FITMENT: BMW 1 Series – E82 / E88 (2008–2013)

• 135i (N54 / N55 3.0L Twin-Turbo)

• 1M Coupe (N54 3.0L Twin-Turbo)

• Compatible with all E8X DCT Transmission models

Please refer to the “Fitment” section in the product description for compatibility details.