Intake manifolds

OE quality that professionals rely on - for reliable performance.

The intake manifold module, also known as the intake manifold bridge, is a central component in the engine's air supply system. It distributes the combustion air cleaned by the air filter evenly to the individual cylinders, ensuring a stable and controlled air supply. This precise air distribution is crucial for efficient and clean combustion and has a significant influence on engine performance, fuel consumption and exhaust emissions.

To ensure reliable operation, the intake manifold module consists of a complex system of tubular ducts and integrated functional components. Modern intake manifold modules often have swirl flaps that adapt the air flow to different load and speed ranges and enable optimum turbulence of the intake air. In addition, sensors, actuators for throttle valve control and integrated cooling water ducts can be included to ensure constant temperature control and precise measured values for engine management.

Another important aspect is the interaction with exhaust gas recirculation (EGR). This returns some of the low-oxygen exhaust gases back into the combustion chamber in order to regulate the combustion process and reduce nitrogen oxide emissions. The intake manifold module thus forms a central connection point between the intake air, throttle valve and EGR system and makes a decisive contribution to low-emission, consumption-optimized and long-lasting engine function.

Benefits

Complete and ready to install: Including installation material and pre-assembled gaskets - reduces complaints and saves workshop time.
Technology leader in injection molding: In-house worldwide production with plastic injection molding systems and winner of the ENGEL Award for plastics technology.
Tested technology from Germany: We test for tightness, temperature resistance, material service life and accuracy of fit on over 45 of our own test benches.
Quality that counts: It is usually only necessary to replace the intake manifold module once or twice in a vehicle's lifetime - if it is replaced, then only with our OEM quality.
Avoid consequential damage: Complete replacement instead of just gasket replacement prevents leaks, material breakage and repeat visits to the workshop.
Broad vehicle coverage: Our range covers more than 1,000 European vehicle models.
High availability: Our 98 percent delivery reliability ensures smooth day-to-day business.
Efficiency in the parts business: Our complete solution with just one article number ensures fast and uncomplicated ordering and order processes.

Replacing the intake manifold module

Recognize causes, avoid engine damage

A defective intake manifold module impairs the engine's air supply and has a direct effect on engine running, performance and fuel consumption. Timely replacement helps to avoid consequential damage and high repair costs.

Typical symptoms of a defective intake manifold module:

Uneven engine running and loss of power due to incorrect air flow
Increased fuel consumption due to an incorrect air/fuel mixture
Engine indicator light active, triggered by sensor errors, flap faults or leaks
Hissing or whistling noises due to loss of vacuum in the intake system

Frequent causes:

Coked or defective swirl flaps that no longer control the air flow correctly
Soot deposits from exhaust gas recirculation (EGR), which lead to blockages in the intake manifold
Faulty servomotors or sensors that impair the air flow
Leaking or porous gaskets that allow false air into the intake tract
Cracks or material fatigue in the plastic housing due to heat, vibrations or thermal stress

Possible consequences if ignored:

A defective intake manifold module can lead to uncontrolled combustion, increased emissions, overloading of actuators and sensors as well as damage to valves and pistons due to misfiring. In the worst case, there is a risk of serious engine damage or failure to pass the emissions test.