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Mercedes Benz CLK430 Intake Manifold Gasket

How to Know If There's Bad News for Your Mercedes Benz CLK430 Intake Manifold Gasket

Also referred to as IMG, the intake manifold gasket is made of rubber and is secured beneath the intake manifold to provide a tight seal. It needs to do so because the intake manifold is responsible for supplying a mixture of fuel and air to the combustion chamber. Anything that gets in the mix will cause a lot of havoc. The intake manifold gasket keeps that fuel from leaking from the intake manifold and prevents additional air from being sucked into the engine. All vehicles, like the Mercedes Benz CLK430, are prone to intake manifold gasket problems. These are just some of the frequent signs of those problems.


The most well-known symptom of a bad intake manifold gasket is leaking. An intake manifold gasket with leaks has openings on it that will allow water, coolant, or a mixture of both to leak from the engine. This will result in a messy puddle of water and coolant on the ground. This is certainly bad news for your car because frequent loss of water and coolant will make the vehicle overheat, risking other car parts as well.

Rough Idling

A normal and healthy engine has an optimum fuel to air ratio that is specific to every model. If an intake manifold gasket fails, it can disrupt this balance and allow too much fuel or air to reach the combustion chamber. Because of this, the levels of fuel and air in the engine will continue to fluctuate as the car eventually idles and dies. An engine that is idling roughly will cause the vehicle to shake, vibrate, and shudder. However, this will be lessened if the vehicle is on the move.


Since the intake manifold is an avenue for fuel and air, any crack or looseness will draw air into the engine through that small breach. This resonates through a whistling sound. However, if the crack or leak is large, a sucking noise comparable to a vacuum will be heard as the engine pulls in more air. Any noise will be accompanied by leaks or idling.

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  • How to Keep Your Mercedes Benz CLK430 Intake Manifold Gasket From Getting Busted

    An intake manifold's purpose is to direct the mixture of air and fuel to each of your car's cylinders, where it is ignited to produce acceleration. It also features several internal chambers where the radiator's coolant can travel to cool the engine. Because fuel and coolant flow through the intake manifold, it needs to have gaskets to prevent these fluids from mixing with each other. Regrettably, the gaskets break down. When this occurs, the engine performance will be severely impaired. Fortunately, replacing it is relatively easy. Before more damage can occur in your engine, try to do these simple steps so you can save more time and money.

    Check the manifold for leaks.

    Liquids leaking from the manifold can form a puddle under your engine. This is a frequent scene with a busted gasket that cannot contain pressure anymore. If the leak persists, you will lose coolant, water, and even fuel. Because of this, the engine will overheat and be inefficient. Therefore, it's good to practice checking for leaks. Locate the leak and change the gasket at once.

    Seal the intake manifold.

    Keeping a tight seal on the intake manifold helps prevent leaks and cracks. This extends the service span of thermostat, and also does a good thing for your thermostat gasket. A small amount of gasket sealer around the gasket will strengthen the gasket. Therefore, it will be able to last much longer. To start, clean the surface of the intake manifold of any debris before applying the seal. The surface must be completely clean and smooth to ensure that the seal won't have any openings.

    Inspect the intake manifold during radiator draining.

    The best time to inspect the engine cooling system is when you are draining the radiator. Once the fluids have been drained, you will be able to have a clear look on the manifolds. Without the murky coolant to cloud your inspection, you may notice some cracks along the gasket, if it hasn't broken up already. Just scratch off the remaining gasket residue from the intake manifold and install a new gasket.