BMW Z4 E89 35i / 35is Upgraded Billet Aluminum DCT Transmission Pan – N54 / N55 3.0L Twin-Turbo | Improved Cooling, Strength & OEM+ Reliability Upgrade

Bring durability and precision engineering to your roadster with the BAVMODS® Billet Aluminum DCT Transmission Pan, purpose-built for the BMW Z4 E89 35i and 35is.

The factory plastic DCT transmission pan found on these models is a known weak point. Over time, constant heat cycles, spirited driving, and age cause the OEM composite pan to flex, distort, and eventually leak. That leads to DCT fluid loss, higher operating temperatures, and inconsistent shifting — issues no enthusiast should have to deal with.

The BAVMODS® Billet Aluminum Upgrade solves this problem permanently. Milled from solid aluminum for unmatched rigidity and precision, it improves both structural strength and heat dissipation, keeping your DCT fluid at a stable temperature even during aggressive driving or hot weather conditions.

This pan ensures long-term reliability, leak-free performance, and the smooth, crisp shifting the Z4’s dual-clutch transmission was designed to deliver. It’s a true OEM+ enhancement that complements the car’s balance of luxury and sport.

Key Features & Benefits

• Billet Aluminum Construction – Significantly stronger and more heat-resistant than the OEM plastic pan.
• Enhanced Cooling Performance – Helps maintain stable transmission fluid temps under spirited or track use.
• Improved Sealing Integrity – Perfectly machined surface eliminates leaks and maintains pressure balance.
• OEM+ Fitment – Uses factory bolts, gasket, and filter for a precise bolt-on installation.
• Consistent Fluid Flow – Promotes proper pressure and lubrication throughout the DCT system.
• Refined Finish – Clean, understated look designed to match BMW’s OEM quality.
• Built for Longevity – Tested under demanding heat and torque conditions for long-term reliability.
• Performance You Can Feel

Expect crisper shifts, smoother transitions, and cooler DCT temperatures across all driving conditions.

Whether you’re enjoying a spirited mountain drive or top-down cruising on the highway, the BAVMODS® Billet DCT Pan gives you more consistent shift response and long-term protection against fluid degradation and heat damage.

Every drive feels tighter, more connected, and more confidence-inspiring — exactly how a BMW roadster should.

Why It Matters

The E89 Z4 strikes a rare balance between elegance and performance — but the stock plastic DCT pan compromises that over time. The BAVMODS® Billet Aluminum Transmission Pan restores integrity to one of your car’s most critical systems, improving reliability and cooling without sacrificing OEM fit and finish.

Built for enthusiasts who expect more from their BMW, this upgrade offers peace of mind and measurable performance benefits — a perfect match for the Z4’s dual nature of luxury and sport.

FITMENT

BMW Z Series – E89 (2009–2016)

• Z4 35i – N54 / N55 3.0L Twin-Turbo (DCT models)

• Z4 35is – N54 3.0L Twin-Turbo (DCT models)

• Compatible with RWD configurations only

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