MERCEDES 2124600401 Electric Power Steering Rack Pinion Benz
fits model: W212, E350, E400, Rwd. make: Mercedes. year: 2012–2016.
( Manufacturer Part Number: 2124600401 ), ( Vintage Part: No ), ( Type: Steering Rack ), ( Manufacturer Warranty: 1 Month ), ( Country Of Origin: United States )
Review MERCEDES benz Electric Power Steering Rack And Pinion Oem fits W212 E350 E400 RWD 2012–2016
The **Mercedes-Benz 2124600401 Electric Power Steering Rack (Pinion Assembly) for the W212 E350 and E400 (2012 2016)** is a precision-engineered component designed to deliver the hallmark blend of refinement, responsiveness, and durability that Mercedes-Benz drivers expect from their vehicles. This high-performance steering rack is integral to the **RWD (rear-wheel-drive) models** of the W212 generation, including the E350 (3.5L V6) and E400 (4.0L V8) sedans, ensuring smooth, effortless maneuverability while maintaining the brand s signature driving dynamics. Crafted from robust, corrosion-resistant materials, the rack features a **hydraulically assisted electric power steering (EPS) system**, seamlessly integrating with the vehicle s existing infrastructure to provide precise, low-effort steering feedback even at low speeds or during tight parking maneuvers. The pinion assembly, a critical component of the rack, is engineered with tight tolerances to minimize play and maximize longevity, reducing the risk of premature wear or failure. This part is fully compatible with the **2012 through 2016 model years**, ensuring an exact fit for both the E350 and E400, and is designed to meet Mercedes-Benz s stringent quality standards, including OE-level durability and performance. Whether restoring a classic W212 or replacing a worn-out component, this steering rack delivers the reliability and performance that Mercedes-Benz enthusiasts demand, ensuring a driving experience that remains true to the brand s legacy of engineering excellence.
### **Pros and Cons of Buying a Mercedes-Benz W212 E350/E400 (2012 2016) with Electric Power Steering Rack (Part No. 2124600401)**
#### **Pros**
1. **Reliable Engine Options**
- The **E350** (3.5L V6) and **E400** (4.7L V8) are well-regarded for their smooth power delivery and durability, especially when maintained properly. The V8 offers strong towing capacity and a more engaging driving experience.
2. **Comfortable and Spacious Interior**
- The W212 generation features a well-padded cabin with good sound insulation, making for a quieter ride than earlier models. The rear seats are roomy, and the overall build quality is solid for a mid-size luxury sedan.
3. **Electronic Power Steering (EPS) Advantages**
- The **electric power steering rack (2124600401)** is more efficient than hydraulic systems, reducing fluid leaks and maintenance needs. It also provides variable assist, making parking and low-speed maneuvering easier.
- EPS systems are generally more reliable in the long term, though they can be more expensive to repair if they fail.
4. **Modern Features for the Era**
- Depending on the trim, these models come with **COMAND multimedia systems** (some with navigation), **adaptive cruise control**, **blind-spot monitoring**, and **lane-keeping assist** features that were advanced for their time.
- The **MBUX (Mercedes User Experience) interface** (on later 2016 models) was a step forward in infotainment usability.
5. **Resale Value and Brand Prestige**
- Mercedes-Benz retains strong resale value, and these models are still recognizable as premium vehicles. The brand carries prestige, which can be appealing for buyers who value status.
6. **Potential for Modifications**
- The V8 (E400) is a favorite among tuning enthusiasts due to its high-revving nature and aftermarket support. Upgrades like exhaust systems, cold air intakes, and performance chips are widely available.
7. **Availability of Parts and Mechanics**
- As a mid-to-late model, parts are still relatively accessible, though some specialty items (like OEM EPS components) may become harder to find over time.
---
#### **Cons**
1. **Aging Technology and Infotainment Lag**
- The **COMAND system** (especially pre-2015) is notorious for being slow, glitchy, and difficult to navigate. Later models improved this, but it still lags behind modern touchscreen interfaces.
- The **MBUX system** (2016 ) is a significant upgrade but is still not as smooth or intuitive as competitors like BMW s iDrive or Audi s MMI.
2. **Reliability Concerns with Age**
- **Transmission issues** (especially in the **7G-Tronic automatic**) are common, with reports of rough shifting, delayed engagement, and eventual failure. A **full transmission service or rebuild** may be needed.
- **Suspension wear** (struts, bushings, control arms) is expected in this age range, and neglecting maintenance can lead to handling issues.
- **Electrical gremlins** (e.g., faulty sensors, intermittent power windows, or infotainment freezes) are frequent complaints, often requiring costly diagnostics.
3. **High Maintenance Costs**
- Mercedes-Benz is known for **expensive repairs**, especially for labor. Even routine maintenance (oil changes, brake jobs) can be costly compared to Japanese or European rivals.
- **Electric power steering (EPS) failures** can be particularly expensive to fix, as OEM parts are pricey, and labor-intensive repairs (e.g., rack replacement) add up.
4. **Fuel Efficiency is Mediocre**
- The **E350 (V6)** gets around **18 20 MPG highway**, while the **E400 (V8)** averages **16 18 MPG**. Neither is great for modern fuel economy standards.
- Diesel options (E300D) were more efficient but have their own reliability concerns (DPF, turbo issues).
5. **Comfort Over Sportiness**
- The W212 is **not a performance car** it prioritizes comfort and refinement over sharp handling. The suspension is soft, and the steering feel (while assisted) lacks the precision of competitors like the BMW 5 Series or Audi A6.
- The **RWD models** (which you re considering) are more stable but still not as engaging as AWD or track-focused variants.
6. **Recall and Safety Concerns**
- Some **2012 2016 W212 models** had recalls for **airbag issues**, **brake system defects**, and **fuel pump failures**. Always check the **NHTSA database** before purchasing.
- **Rear visibility** is a known issue some drivers report blind spots in the rearview mirrors, especially with taller drivers.
7. **Depreciation and Market Saturation**
- These models have **depreciated significantly** since their peak, meaning you re paying a premium for a used luxury car that may not hold value well.
- The **used market is flooded** with W212s, making it harder to find a truly low-mileage example without hidden issues.
---
### **Ending Conclusion**
The **Mercedes-Benz W212 E350/E400 (2012 2016) with electric power steering** is a **solid mid-size luxury sedan** that offers **reliable power, comfort, and prestige** but only if **properly maintained**. It excels in **long-distance cruising, towing (V8), and daily driving comfort**, but its **outdated infotainment, high repair costs, and aging reliability** make it a **high-risk purchase for casual buyers**.
If you **prioritize luxury, space, and a smooth ride** while being **willing to budget for maintenance**, this car can be a **great value**. However, if you **value modern tech, fuel efficiency, or lower ownership costs**, you may find better alternatives in **BMW 5 Series, Audi A6, or Lexus GS**.
---
### **Recommendation**
**Buy if:**You **need a reliable, comfortable, and spacious luxury sedan** for daily use.
You **plan to maintain it properly** (regular fluid changes, transmission service, suspension checks).
You **prefer the V8 (E400) for towing or the V6 (E350) for balance between power and efficiency**.
You **find a well-documented example** (service records, no major accidents, EPS system in good condition).
You **don t mind outdated tech** and are okay with potential **high repair costs** down the line.
**Avoid if:**You **expect a modern infotainment system** or **fuel-efficient driving**.
You **can t afford unexpected repairs** (transmission, EPS, electrical issues).
You **prioritize performance or handling** over comfort.
You **find a car with high mileage (>100K miles) or no maintenance history**.
**Best Alternatives to Consider:**- **BMW 530i/540i (F10/F11)** More refined, better tech, but similar reliability concerns.
- **Audi A6 3.0T/4.0** More engaging to drive, better fuel economy (diesel).
- **Lexus GS 350/450h** Extremely reliable, great warranty coverage, but less luxury feel.
- **Volvo S60 T8 (PHEV)** Modern, safe, and efficient, with a more engaging drive.
**Final Verdict:**The **W212 is a decent buy for the right buyer** someone who **values Mercedes luxury over modern convenience and is prepared for potential repairs**. If you **inspect thoroughly, negotiate hard, and commit to maintenance**, it can be a **great long-term vehicle**. Otherwise, **look for newer or more efficient alternatives**.
Details:
part #: 2124600401 prices
- $599.99-$675.00
specifications steragebo:
- for models: W212, E350, E400, Rwd
- for makes: Mercedes
- for years: 2012-2016
- mpn: 2124600401
- vintage part: No
- type: Steering Rack
- manufacturer warranty: 1 Month
- country of origin: United States
seller steragebo:
- # reviews: 8719
- rating: 100.0%
- city: Santa Cruz, California
general steragebo:
- Car Truck Parts Accessories > Steering Suspension > Gearboxes, Rack Pinions
- condition: Used
returns steragebo:
- paid by: Seller
- policy: Returns Accepted
- time: 30 Days
shipping steragebo:
- service: FedEx Ground / FedEx Home Delivery
- transit: 5-9 Days
- carrier: FedEx
- type: Fixed
- cost: $155.00
- class: Standard
offer steragebo:
- sold: 0
- best offers: True
- started: February 22, 2026
- availability: In Stock
- options: Ship-to-home
- quantity: 1
payments steragebo:
- wallet: Paypal
- other
- credit card: Visa
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