For owners of classic Mercedes-Benz models, fuel-system cleanliness is directly tied to engine performance and
fuel-pump service life. The fuel tank screen, often called a pre-filter, is the first line of defense at the
fuel-pump intake, capturing rust, sediment and other coarse debris before fuel reaches the main filter. The part
is designed to reduce the risk of clogging and premature pump wear in older vehicles.
What the fuel tank screen does
Mounted at the fuel-pump inlet inside the tank, the screen intercepts larger contaminants that can accumulate in
the fuel system of classic vehicles. By keeping coarse particles away from the main fuel filter, it supports
stable fuel delivery and helps protect the pump from abrasion and blockage.
The component is a maintenance item for classic Mercedes-Benz fuel systems, where sediment and rust in the tank
can increase over time. Its role is especially important in vehicles that see intermittent use or have older
fuel-system components.
Technical specifications and fitment
The screen is intended for the fuel-pump intake on a range of classic Mercedes-Benz models. It is listed with
OEM number A2014700406 / 2014700406 and is manufactured to OEM specifications.
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Parameter
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Details
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OEM number
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A2014700406 / 2014700406
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Product type
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Fuel tank pre-filter screen
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Primary function
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Intercepts coarse contaminants and protects the fuel pump
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Origin
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Manufactured in the European Union
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Compatible models
The part is listed for the following classic Mercedes-Benz series, covering models from the early 1970s through
the mid-1990s.
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R107 SL-Class (1971–1989)
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C107 SLC-Class (1971–1981)
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W113 S-Class (1972–1980)
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W123 / S123 / C123 (1976–1985)
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W124 (1984–1997)
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W201 (1982–1993)
Fitment spans the R107, C107, W113, W123/S123/C123, W124 and W201 families. Owners should verify the OEM number
and fuel-pump configuration before installation.
Installation and maintenance guidance
The screen sits at the fuel-pump intake inside the tank and remains immersed in fuel during operation. Over
time, it can become coated with gum or debris. If the vehicle shows insufficient fuel delivery, abnormal
fuel-pump noise or an unstable idle, the screen should be inspected.
Replacement should be carried out with the fuel level low and with attention to the sealing ring. A damaged or
improperly seated seal can create a fuel-leak risk.
Frequently Asked Questions
Does replacing this screen require removing the entire fuel tank?
In most classic models, the screen can be reached through an access port at the bottom or side of the
fuel tank, so removing the entire tank is generally not required. Fuel should be drained and fire
precautions taken before work begins.
How can a driver tell whether the fuel tank screen needs replacement?
If the vehicle experiences power interruption during acceleration or the fuel pump emits an abnormal
whine, a heavily clogged screen may be increasing fuel-delivery resistance. The pre-filter should be
checked when the main fuel filter is replaced.
Can this screen be cleaned and reused?
Some screen materials may allow simple cleaning, but the high cleanliness requirements of classic fuel
systems and the risk of age-related structural damage make replacement the safer course. This helps
prevent fine particles from reaching the high-pressure fuel pump and causing irreversible damage.
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