Genuine OEM 2309973282 - Suspension Self-Leveling Unit Hose

Product Overview

This Genuine OEM 2309973282 suspension self-leveling unit hose is engineered to factory specifications for Mercedes-Benz SL-Class roadsters from 2003 to 2006. The self-leveling suspension system maintains consistent ride height and handling balance across varying load conditions, and this hose carries pressurized fluid to the leveling actuators. Designed for R230 SL500, SL55 AMG, SL600, and SL65 AMG models, this component ensures proper system function and vehicle stability. Genuine OEM parts carry the factory warranty and fitment guarantee that Mercedes-Benz technicians rely on.

Symptoms of a Failing Suspension Self-Leveling Unit Hose

• Vehicle sagging or sitting lower on one or more corners, especially when parked overnight
• Uneven ride height that does not self-correct within seconds of starting the engine
• Visible fluid leaks beneath the vehicle near suspension components
• Hissing or air-release sounds from the suspension system during operation
• Warning lights or suspension-related messages on the instrument cluster
• Reduced handling response or excessive body roll during cornering

Cross Reference Numbers

This Genuine OEM 2309973282 is equivalent to or replaces the following part numbers: 230-997-32-82, 2309973282.

Vehicle Compatibility

This part fits the popular models below. For Fitment Confidence, please use the vehicle selector tool above to verify exact compatibility for your vehicle.

• Mercedes-Benz SL500 Roadster 5.0 V8 Gas (R230): 2003–2006
• Mercedes-Benz SL55 AMG Roadster 5.5 V8 Gas (R230): 2003–2006
• Mercedes-Benz SL600 Roadster 5.5 V12 Gas (R230): 2004–2006
• Mercedes-Benz SL65 AMG Roadster 6.0 V12 Gas (R230): 2005–2006

This may also fit other applications. Please use the vehicle selector tool to verify fitment.

Often Replaced Together

For a complete self-leveling suspension service, many owners replace the following at the same time:

• Self-leveling unit accumulator (stores pressurized gas to maintain ride height)
• Suspension fluid (hydraulic fluid for the self-leveling circuit)
• Additional self-leveling hoses on the opposite side or at other suspension points
• Self-leveling pump or compressor (if system pressure is low or unit cycles excessively)

Why Shop at eEuroparts.com?

• Proven Expertise: Over 25 years of experience with European vehicles means we know your car inside and out.
• Fitment Confidence: Our accurate cataloging ensures you get the right part the first time, backed by our fitment guarantee.
• Fast, Reliable Shipping: Most in-stock orders ship the same or next business day from our U.S.-based warehouse.
• Transparent Pricing: Competitive prices with no hidden fees or surprise charges.
• Exclusive Kits That Fit™: Complete repair solutions with no guesswork.
• Established Trust: Serving the European car community since 2000.

Frequently Asked Questions

How do I know if my Mercedes-Benz R230 SL-Class self-leveling suspension hose needs replacement?

The most common sign is a vehicle that sits noticeably lower on one corner when parked and does not rise to normal ride height within a few seconds of engine start. You may also notice fluid leaking from beneath the suspension, a hissing sound as the system pressurizes, or a suspension warning message on the dashboard. If the hose has cracked or separated, fluid loss will prevent the system from maintaining pressure.

What is the self-leveling suspension system and why does it matter?

Mercedes-Benz SL-Class roadsters use a hydropneumatic self-leveling system to maintain consistent ride height regardless of passenger load or cargo. The system uses pressurized fluid delivered through hoses to actuators at each wheel. A failing hose allows fluid to escape, causing the vehicle to sag and reducing suspension performance and handling stability.

Can I replace just one hose, or do I need to replace multiple hoses at once?

While you can replace a single failed hose, many technicians recommend inspecting all self-leveling hoses during service. If one hose has failed due to age or heat damage, others may be approaching failure. Replacing hoses in pairs or sets ensures balanced system performance and reduces the likelihood of a repeat repair within a short time.

Is this a Genuine Mercedes-Benz part?

Yes. This is a Genuine OEM part manufactured to Mercedes-Benz factory specifications. It carries the same warranty and fitment assurance as parts sold through Mercedes-Benz dealerships, ensuring compatibility with your R230 SL-Class and proper system operation.

How long does it take to replace a self-leveling unit hose?

Replacement time varies depending on which hose is being replaced and the technician's familiarity with the suspension layout. Most hoses can be accessed from beneath the vehicle with standard tools including a floor jack, jack stands, and basic wrenches. Consult your service manual for exact access points and any suspension components that may need temporary removal.

What tools and equipment do I need to replace this hose?

You will need a floor jack, jack stands, a socket set, wrenches, and possibly a hose removal tool to disconnect the old hose from the suspension actuators and the main suspension unit. You may also need a fluid catch pan to contain any remaining hydraulic fluid. Have shop towels ready, as the self-leveling fluid can stain surfaces. Refer to your service manual for exact tool specifications and proper suspension support procedures.

Order Genuine OEM 2309973282 today. In-stock orders ship same or next business day from our U.S. warehouse, and our fitment team is one call away if you need help confirming the right part for your Mercedes-Benz SL-Class.

Note: All information on this page and in the FAQ is for general reference only. Verify fitment and consult a professional as needed. eEuroparts.com is not responsible for incorrect part selection or installation.