Mercedes-Benz E-Class OEM Options Review — Factory Upgrade Cost

Upgrading Your Mercedes-Benz E-Class with OEM Options

Many Mercedes-Benz E-Class owners seek to enhance their driving experience beyond the factory build. This often involves exploring OEM options, also known as factory option retrofits or dealer option retrofits. These are genuine parts and features designed by Mercedes-Benz that can be added after the initial purchase. This review focuses on a specific OEM option: the activation of the driver's side 'R' button on the W213 E-Class. While the original context for this work comes from South Korea, the principles and considerations apply to owners in the US and UK looking for similar factory upgrades.

Real-World Results and Durability of Factory Upgrades

The primary goal of a factory upgrade like the driver's side 'R' button activation is to add functionality or convenience. In this case, the 'R' button typically controls specific driving modes or settings, offering a more integrated and seamless user experience compared to aftermarket solutions. The before and after results are purely functional; the button becomes active and performs its intended task. Durability is generally excellent, as these are OEM parts designed to withstand the rigors of daily use within the vehicle. Maintenance is minimal, usually involving no more than keeping the button clean. The integration with the car's existing systems ensures a reliable performance that aftermarket solutions might struggle to match.

Is an OEM Options Retrofit Worth It for Your E-Class?

Deciding whether a factory option retrofit is worth the investment depends on your needs and budget. The cost for this specific 'R' button activation in South Korea was approximately ₩100,000 (around $75 USD at the time of the original report), plus the cost of the button itself if it needed replacement. For US and UK owners, expect dealer option retrofit costs to potentially be higher due to labor rates and import considerations. The value proposition lies in achieving factory-level integration and functionality. If the added feature significantly enhances your driving experience or addresses a specific need, then an OEM options installation can be a worthwhile investment. However, if the functionality is minor or can be achieved through less expensive means, it might not be the best choice.

Installation Process:

1. Diagnosis and Part Sourcing: The process begins with confirming compatibility for the specific E-Class model and year. If the physical button needs to be replaced, the correct OEM part is sourced.
2. Software Activation: Using Mercedes-Benz diagnostic tools, the vehicle's software is accessed to enable the functionality of the 'R' button. This often involves coding specific modules within the car's computer system.
3. Physical Installation (if needed): If the button itself was replaced, it's physically installed into the dashboard or center console.
4. Testing: Finally, the activated 'R' button is tested to ensure it correctly controls the intended vehicle functions.