MERCEDES A2319055000 Start Ignition Switch Module Benz R231

( Manufacturer Part Number: A2319055000 ), ( Part Type: Start Ignition Switch Module ), ( Oe/oem Part Number: A2319055000, 2319055000, A231-905-50-00, 231-905-50-00, Original Genuine, R231, W231, Sl-class, Sl Class, Sl450, Sl550, Sl63 Amg, Sl65 Amg, Sl400, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 ), ( Universal Fitment: No ), ( Country Of Origin: Germany )

Review MERCEDES benz Sl class Start Ignition Switch Module Oem fits SL 2013–2020

The **Mercedes-Benz A2319055000 (R231 SL-Class Start Ignition Switch Module)** is a precision-engineered, high-performance electrical component designed exclusively for the **R231 generation of Mercedes-Benz SL-Class models**, spanning production years from **2013 to 2020**. This critical ignition and start switch module serves as the central interface between the driver, the vehicle s electrical system, and the engine management, ensuring seamless operation of the ignition, starter motor, and various security and convenience functions. Crafted to Mercedes-Benz s exacting standards, this module integrates advanced electronic controls, robust mechanical switches, and anti-theft protection protocols, making it a cornerstone of the SL-Class s refined driving experience.

The **A2319055000** is engineered with a **multi-position rotary switch mechanism**, allowing for precise control over the vehicle s electrical systems, including the **ignition (I), start (S), and accessory (ACC) modes**, as well as the **keyless entry and push-button start functionality** that defines modern Mercedes luxury. Its internal circuitry incorporates **high-reliability contacts and current-interrupting relays**, ensuring smooth engagement of the starter motor while preventing electrical overloads. Additionally, the module is equipped with **anti-theft safeguards**, including **immobilizer compatibility and encrypted signal verification**, which work in tandem with the vehicle s **KESSY (Keyless Entry and Start System)** to authorize engine startup only with the correct key fob or physical key.

Beyond its primary ignition functions, this switch module also plays a pivotal role in **vehicle diagnostics and driver feedback**. It communicates with the **ECU (Engine Control Unit)** and **BCM (Body Control Module)** to relay status signals, such as **low battery voltage warnings, immobilizer faults, or incorrect key programming**, ensuring the driver is always informed of potential issues. The module s **durable, corrosion-resistant construction** featuring high-grade plastics, reinforced metal contacts, and sealed electrical connections guarantees long-term reliability, even in demanding driving conditions or harsh environmental exposures. Whether installed in a **SL 350, SL 550, or SL 63 AMG**, this component upholds the SL-Class s reputation for **exclusive performance and uncompromising engineering**.

For owners and technicians alike, the **A2319055000** represents a **direct replacement part** that maintains factory specifications, ensuring compatibility with all original Mercedes-Benz systems. Its installation requires adherence to **OEM wiring and connector standards**, often necessitating a **professional fitment** to preserve the vehicle s electrical integrity. When functioning optimally, this switch module not only enables effortless engine startup but also contributes to the **smooth, responsive driving dynamics** for which the SL-Class is renowned. Whether restoring a previously damaged ignition system or upgrading an existing installation, this module is an indispensable component for preserving the **authentic Mercedes-Benz experience** in every aspect of operation.

**Pros and Cons of buying a Mercedes-Benz A2319055000 (13-20 R231 SL-Class Start Ignition Switch Module)**

1. **OEM Quality and Reliability** This is an original equipment manufacturer (OEM) part, meaning it meets Mercedes-Benz s strict engineering standards. It is designed to integrate seamlessly with the vehicle s electrical system, reducing the risk of compatibility issues that can occur with aftermarket parts.

2. **Direct Fitment** The part is specifically engineered for the R231 SL-Class models produced between 2013 and 2020. This ensures an exact match in terms of functionality, wiring, and physical dimensions, minimizing installation challenges.

3. **Warranty Coverage** Purchasing from an authorized dealer or a reputable supplier often includes a warranty, providing peace of mind against defects or premature failure. This can be particularly valuable for high-end vehicles where reliability is critical.

4. **Improved Safety and Functionality** The start/ignition switch module plays a crucial role in the vehicle s security system, including keyless entry, push-button start, and immobilizer functionality. A genuine part ensures these features operate as intended, reducing the risk of theft or operational failures.

5. **Long-Term Durability** OEM parts are built to last the lifetime of the vehicle, assuming proper maintenance. This can save money in the long run by avoiding repeated replacements or modifications required with lower-quality alternatives.

6. **Resale Value Preservation** Using OEM parts helps maintain the vehicle s original condition, which can be beneficial if you plan to sell or trade-in the SL-Class in the future. Potential buyers often prefer vehicles that have been serviced with genuine components.

7. **Technical Support and Documentation** OEM parts come with detailed installation guides, wiring diagrams, and access to technical support from Mercedes-Benz or authorized service providers. This can be invaluable for DIY enthusiasts or mechanics unfamiliar with the R231 model.

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1. **High Cost** OEM parts are significantly more expensive than aftermarket alternatives. The price of the A2319055000 module can be several times higher than a comparable aftermarket switch, making it a substantial investment, especially for luxury vehicles where parts costs are already elevated.

2. **Limited Availability and Lead Times** OEM parts may not always be in stock, particularly if the vehicle model is older or if the part is discontinued. This can result in longer wait times for delivery, which may be inconvenient if the vehicle is inoperable or requires urgent repair.

3. **Potential Overkill for Minor Issues** If the issue with the ignition switch is minor (e.g., a loose connection or a failing relay rather than a complete module failure), replacing the entire module with an OEM part may be unnecessary. This could lead to wasted expenditure if a simpler or cheaper fix would have sufficed.

4. **Installation Complexity** While the part is designed for direct fitment, installing it may require specialized tools, electrical knowledge, or access to diagnostic equipment. For those without mechanical experience, professional installation may be necessary, adding to the overall cost.

5. **Environmental and Ethical Concerns** OEM parts often come from manufacturing processes that may have higher environmental impacts compared to some aftermarket alternatives. Additionally, purchasing from unauthorized sources could raise ethical concerns about counterfeit parts or unethical sourcing practices.

6. **Potential for Redundancy** Some newer SL-Class models (post-2020) may have updated software or electrical systems that could interact differently with older OEM parts. While unlikely in this case, it s worth verifying compatibility if the vehicle has undergone recent updates or modifications.

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The Mercedes-Benz A2319055000 start/ignition switch module is a high-quality, reliable OEM component that ensures proper functionality and longevity for the R231 SL-Class. Its advantages in terms of fitment, safety, and warranty coverage make it an ideal choice for owners who prioritize performance, resale value, and peace of mind. However, the significant cost and potential overkill for minor issues are notable drawbacks that may deter some buyers, particularly those on a tight budget or dealing with less critical problems.

For most serious Mercedes-Benz owners, the investment in an OEM part is justified, especially if the vehicle is a high-value asset. If cost is a primary concern, a thorough diagnosis should be performed to confirm that the entire module is indeed faulty before committing to replacement. Additionally, purchasing from an authorized dealer or a trusted supplier ensures authenticity and warranty coverage, mitigating risks associated with counterfeit parts.

- You have confirmed through diagnostics that the start/ignition switch module is the root cause of the issue.

- You value the reliability, safety, and long-term integrity of your SL-Class.

- You are prepared to pay the premium for an authentic, high-quality component.

- You plan to retain or resell the vehicle, as OEM parts help preserve its value.

- The issue is minor (e.g., a wiring problem or a failing relay), and a cheaper repair would suffice.

- You are working with a tight budget and have verified that the module is indeed the problem.

- You are comfortable with aftermarket parts and have researched reputable suppliers with good reviews for compatibility and warranty support.

Ultimately, the decision should be based on a balance between immediate needs, long-term goals, and financial considerations. For the R231 SL-Class, where performance and luxury are paramount, the OEM part remains the strongest recommendation for those who can afford it.

Details:

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part #: a2319055000 prices

• $180.23-$199.20

specifications carlockiio:

• for models: Sl
• for makes: Mercedes
• for years: 2013-2020
• mpn: A2319055000
• part type: Start Ignition Switch Module
• oe/oem part number: A2319055000, 2319055000, A231-905-50-00, 231-905-50-00, Original Genuine, R231, W231, Sl-class, Sl Class, Sl450, Sl550, Sl63 Amg, Sl65 Amg, Sl400, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
• universal fitment: No
• country of origin: Germany

general carlockiio:

• Car Truck Parts Accessories > Exterior Parts Accessories > Exterior Locks Lock Hardware
• condition: Used

shipping carlockiio:

• transit: 4-8 Days
• service: Standard
• class: Standard
• cost: $0.00
• type: Fixed

offer carlockiio:

• options: Ship-to-home
• started: March 20, 2026
• quantity: 1
• sold: 0
• availability: In Stock
• best offers: True

payments carlockiio:

• credit card: Diners-club
• wallet: Google-pay
• other

seller carlockiio:

• # reviews: 3034
• city: North Hollywood, California
• rating: 99.5%

returns carlockiio:

• paid by: Buyer
• policy: Returns Accepted
• time: 30 Days

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