Precision Powertrain Components | Uncompromised Performance Legacy
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Product Introduction
The Ultimate Fix for the M57 "Ticking Time Bomb"
Specially designed for BMW E39, E46, E53, E60, and E70 models equipped with the M57 diesel engine. As many European owners know, the OEM plastic swirl flaps are highly prone to breaking under prolonged high temperatures and carbon buildup. If these fragments fall into the engine, the resulting repair costs can be catastrophic.
We offer more than just a simple gasket; we provide a complete, one-stop solution to permanently fix the swirl flap failure. As a direct manufacturer exporting to the US and European markets, specializing in EGR valves, throttle bodies, and coolers, our repair kit provides a definitive fix without the exorbitant cost of replacing the entire OEM intake manifold. It includes all core components needed to restore your engine's safety and performance.
Eliminate Engine Failure Risk: The aluminum alloy swirl flap blanking plates (replaces OE 11612246945) are designed to replace the fragile OEM plastic flaps. By completely sealing off the intake ports, these solid aluminum plates permanently eliminate the risk of plastic fragments breaking off and destroying the engine.
Restore Intake Seal: Includes a complete set of premium gaskets (replaces OE 11617790198 and 11612245439) specifically for the connection between the intake manifold and cylinder head. Replacing these worn-out rubber components effectively resolves rough idling and black smoke issues caused by vacuum leaks.
Direct OEM Fitment: All components are manufactured to exact OEM specifications. Whether you are doing a "swirl flap delete" or a full repair, the parts fit perfectly without any additional modifications.
Upgraded Materials: Crafted from high-temperature resistant aluminum alloy for superior heat dissipation. It requires zero maintenance after installation, providing a permanent fix for this notorious engine flaw.
Cost-Effective Solution: Compared to the exorbitant cost of replacing the entire intake manifold assembly at dealerships, our repair kit achieves a more reliable fix at a fraction of the price.
Specially designed for BMW and Land Rover vehicles equipped with M57 / M57N / M57N2 diesel engines. A top-selling product in the US and European markets. Compatible models include, but are not limited to:
BMW 3 Series (E46, E90/E91/E92/E93): 320d, 330d, 330xd
BMW 5 Series (E39, E60/E61): 525d, 530d, 535d
BMW X5 (E53, E70): 3.0d, 3.0sd
BMW 7 Series (E65, E66): 730d
Land Rover: Select models sharing the same BMW diesel engine (e.g., Freelander TD4)
Technical Parameters
Product Uses
Scenario 1: Restoring Performance & Emergency Repair (The "Eliminate Failure" Scenario)
Symptoms: Check Engine Light (CEL) is illuminated. Diagnostic scanner shows codes such as P1511 (Intake Manifold Air Control Solenoid Circuit Malfunction) or P1501 (Idle Speed Actuator Stuck Closed).
Specific Issues: The driver experiences sluggish acceleration, black smoke from the exhaust, severe rough idling, and even abnormal oil consumption.
Applications: This is typically caused by worn OEM swirl flap shafts leading to loss of control or seizing. Our repair kit provides solid metal blanking plates and gaskets to physically remove the faulty flaps. This permanently eliminates the fault codes, restores smooth airflow, and improves throttle response.
Scenario 2: Engine Rebuild & Preventative Maintenance (The "Preventative" Scenario)
Target Audience: Advanced DIY enthusiasts, professional repair shops, and engine remanufacturing facilities.
Target Vehicles:
BMW E46 & E39 (3/5 Series): Classic diesel models that are now over 15 years old. Excessive play in the swirl flap shafts is a mandatory check and fix for these vehicles.
BMW E60, E90, E70 & E83 (X3): Vehicles equipped with M57N/M57TUD engines. While still in their prime, these high-mileage engines (typically over 150,000 km / 93,000 miles) require attention. Knowledgeable owners proactively replace the plastic flaps with metal blanking plates while replacing the intake gaskets to completely eliminate the risk of catastrophic engine failure.
Applications: When performing intake manifold removal or cleaning carbon deposits from the intake ports, perform a "swirl flap delete" at the same time. A single service completely eliminates the future risk of broken flaps dropping into the cylinders and destroying the engine.
Product Operate Guide
Step 1: Disassemble Components. Carefully remove the surrounding engine components to access the intake manifold.
Step 2: Remove Intake Manifold & Extract Old Parts. Unbolt and detach the intake manifold, then remove the old plastic swirl flaps.
Step 3: Clean the Surface. Thoroughly clean the intake manifold mating surface to ensure a smooth, debris-free area for a perfect seal.
Step 4: Install New Gaskets. Place the new premium gaskets onto the cleaned surface.
Step 5: Install Blanking Plates. Securely mount the new metal blanking plates in place of the old flaps.
Step 6: Reinstall Intake Manifold. Carefully align and bolt the intake manifold back into position, torquing to the manufacturer's specifications.
FAQ
Q1: What is the main purpose of this repair kit? Why do I need it?
A: After long-term use, the OEM swirl flaps in the intake manifold of your BMW or Land Rover diesel vehicle can seize due to carbon buildup or suffer from shaft wear. This can cause plastic fragments or retaining screws to break off and be sucked into the engine cylinders, leading to severe damage such as bent valves, scored cylinders, or even complete engine failure.
Our repair kit provides reinforced blanking plates (Delete Kit) and a complete set of gaskets. By physically removing the defective OEM flap mechanism and installing our blanking plates, you permanently eliminate the risk of engine destruction while restoring intake system sealing to ensure smooth engine performance.
Q2: My Check Engine Light is on with codes P1077 or P1078. Will this kit turn off the light?
A: Most likely, yes. Fault codes P1077 / P1078 typically indicate that the "Intake Manifold Runner Control" is stuck open or closed. This is usually caused by the original flaps seizing from carbon buildup, or a failed vacuum actuator/linkage.
While our kit uses solid metal blanking plates to fix the mechanical issue, installing it usually requires adding a resistor or performing an ECU remap (Stage 1) to bypass the electronic fault codes. Please Note: Our purely mechanical delete kit does not include electronic bypass modules. If your vehicle features electronically controlled flaps, you may need a simple software update to tell the computer that the flaps have been permanently removed.
Q3: Is the material metal? Is it durable?
A: Absolutely. As a professional manufacturer exporting to the US and European markets, we are fully aware of the flaws of plastic components in high-temperature diesel environments. Our kit is constructed from high-strength aluminum alloy/stainless steel (Note: Please adjust based on your actual product). It is highly resistant to heat and corrosion, and requires zero maintenance for life. It will never age or become brittle like the OEM plastic parts.
