Corteco 21653060 Suspension Self-Leveling Unit

Corteco Suspension Self-Leveling Unit for Mercedes-Benz

The Corteco 21653060 suspension self-leveling unit is a direct-fit replacement for select Mercedes-Benz models that use self-leveling rear suspension components. With a listed weight of 1.34 kg, this part supports OE-style suspension function for vehicles such as the Mercedes-Benz E320, S500, and SL500.

Key Features

• Corteco suspension self-leveling unit, part number 21653060
• OE-style replacement for Mercedes-Benz self-leveling suspension applications
• Fits a wide range of Mercedes-Benz E-Class, S-Class, SL-Class, C-Class, and CLK-Class models
• Cross-references Febi-Bilstein 03277 and Quality-Built 11001 for the same application
• Listed weight: 1.34 kg

Detailed Description

This Corteco suspension self-leveling unit is built for Mercedes-Benz vehicles equipped with self-leveling rear suspension hardware. It is listed for applications including 1994-2003 Mercedes-Benz E320, 1994-2001 Mercedes-Benz SL500, 1994-2000 Mercedes-Benz C280, 1994-2000 Mercedes-Benz S600, 1998-2002 Mercedes-Benz E430, and 1997-2002 Mercedes-Benz CLK320. The part number 21653060 also appears in interchange listings tied to OE references such as 1243200115 and 1403280215.

Compatible With Mercedes-Benz models across the 1986-2003 range, this unit is used where the suspension system needs to maintain ride height and rear suspension control under load. It is also listed for 1994-1997 Mercedes-Benz S320, Rear Axle, and 1995-1997 Mercedes-Benz SL320, Rear Axle, so fitment should be matched carefully to the vehicle’s suspension configuration.

What This Part Helps Address

• Rear ride height that no longer stays level under load
• Sagging suspension on Mercedes-Benz self-leveling applications
• Uneven rear stance caused by worn suspension control components
• Loss of proper suspension response in OE-leveling systems
• Replacement needs for aging Mercedes-Benz hydraulic or leveling-related hardware

Installation Notes and Tips

Verify the OE number and vehicle suspension configuration before ordering, especially on models with rear axle notes or multiple OE references. Confirm the exact application against the existing part number on the vehicle, including Mercedes-Benz E320, S500, and SL500 fitments. Professional installation is recommended for self-leveling suspension components because system setup and inspection are important after replacement.

Quality Assurance

Corteco is an established aftermarket brand supplying replacement suspension components for European vehicles. This part is listed with multiple interchange references, including Febi-Bilstein 03277 and Quality-Built 11001, which helps confirm application matching for the correct Mercedes-Benz self-leveling suspension setup.