1. Automatic Transmissions Products
  2. sku: 23607917546803891
  3. MERCEDES E350

MERCEDES Transmission 400-11535 Benz

fits model: E350. make: Mercedes. year: 2021.

400-11535 Mercedes-benz E350 2021 Transmission 1204465

( Part Type: Transmission ), ( Conditions Options: Rwd ), ( Genuine Oem: Yes ), ( Ipn: 400-11535 ), ( Make: Mercedes-benz ), ( Descriptionpartcondition: This Listing Is Just For One Transmission Only Please Send Us Yo ), ( Manufacturer Warranty: No Warranty )

Review MERCEDES benz Transmission fits E350 2021

The **Mercedes-Benz 400-11535 E350 2021 Transmission** is a high-performance, electronically controlled automatic transmission engineered for the iconic **E-Class sedan**, delivering seamless power delivery and unmatched driving dynamics. Part of Mercedes-Benz s advanced **7G-Tronic Plus** transmission family, this unit is meticulously designed to optimize fuel efficiency, acceleration, and overall driving comfort while maintaining the brand s signature precision and reliability. Built with cutting-edge **dual-clutch technology**, the 400-11535 integrates a sophisticated hydraulic and electronic system that ensures rapid, near-instantaneous gear shifts eliminating the traditional lag associated with conventional automatic transmissions. The transmission features a **7-speed configuration**, allowing for a broad range of optimal engine RPMs across varying speeds, whether cruising on the highway or navigating tight city streets. Its robust construction includes **high-strength steel and aluminum components**, ensuring durability and resistance to wear under demanding conditions, while the **torque converter** is engineered to handle the **E350 s 302 horsepower** (from the **M256 inline-6 engine**) with ease, providing smooth power transfer without compromising performance.

The **400-11535 transmission** incorporates Mercedes-Benz s **MBUX infotainment system integration**, enabling seamless connectivity with the vehicle s advanced driver aids, such as **PRE-SAFE ** and **Active Lane Keeping Assist**, which adjust shift points dynamically to enhance safety and responsiveness. The transmission s **adaptive shift logic** learns driver preferences over time, optimizing gear changes for either sporty engagement or fuel-efficient cruising, all while maintaining the E-Class s legendary refinement. Additionally, the unit is equipped with **Mercedes-Benz s patented Shift-by-Wire technology**, eliminating mechanical linkages in favor of electronic control, which reduces weight, improves reliability, and allows for more precise shift execution. The **oil pump and cooling system** are engineered to maintain optimal lubrication and temperature control, even under prolonged high-load conditions, ensuring longevity and peak performance. Whether used in a **restored classic E-Class** or as a replacement for a worn-out original unit, the **400-11535 transmission** represents the pinnacle of Mercedes-Benz engineering combining sophistication, power, and uncompromising quality to deliver an experience that embodies the brand s legacy of luxury and engineering excellence.

### **Pros and Cons of Buying a 2021 Mercedes-Benz E350 (W213) with the 11535 Transmission (9G-Tronic 9G250)**

#### **Pros**

1. **Smooth and Efficient Transmission**

The 9G-Tronic 9G250 is an advanced 9-speed automatic transmission designed for better fuel efficiency and smoother shifting compared to older Mercedes transmissions. It integrates closely with the engine and hybrid components in the E350 (which uses a mild-hybrid system), improving overall performance.

2. **Hybrid Efficiency Benefits**

The E350 s mild-hybrid system (with a 48V starter-generator) enhances fuel economy, especially in stop-and-go traffic, without the complexity of a full plug-in hybrid. This makes it more efficient than a standard gasoline-only E300.

3. **Strong Engine Performance**

The 3.0L inline-6 engine (M256) produces **306 hp and 302 lb-ft of torque**, providing a good balance of power and efficiency. It s more refined than the older 2.0L turbocharged engines found in some competitors.

4. **Comfortable and Refined Ride**

The W213 chassis is known for its high-quality materials, quiet cabin, and well-tuned suspension. The E350 offers a premium driving experience with minimal road noise and smooth power delivery.

5. **Modern Infotainment and Tech**

The 2021 model comes with **MBUX infotainment (if equipped)**, featuring a large touchscreen, voice control, and advanced driver-assistance systems (ADAS) like lane-keeping assist and adaptive cruise control. Even without MBUX, the standard system is well-integrated.

6. **Reliability Improvements Over Older Models**

Mercedes has made significant strides in transmission and engine reliability since the early 2010s. The 9G-Tronic is less prone to major failures compared to older 7G-Tronic units, though long-term reliability still depends on maintenance.

7. **Good Resale Value**

Mercedes-Benz retains strong resale value, and the E350 (especially with hybrid features) holds its worth better than many competitors.

8. **Versatile Powertrain**

The mild-hybrid system provides a slight boost in efficiency without the drawbacks of a full hybrid, making it a practical choice for daily driving.

---

#### **Cons**

1. **Higher Cost of Ownership**

Mercedes-Benz vehicles, even mid-size sedans like the E350, come with premium pricing. Maintenance, repairs, and parts can be expensive compared to Japanese or European alternatives.

2. **Transmission Reliability Concerns (Early Adoption Risks)**

While the 9G-Tronic is an improvement, some early adopters of 9-speed transmissions (especially in hybrid applications) have reported issues with **clutch wear, delayed shifts, or electrical glitches**. However, these problems are less common in the E350 than in full hybrids like the E350e.

3. **Hybrid System Limitations**

The mild-hybrid system (48V) is not as impactful as a full plug-in hybrid (like the E350e). It provides minor efficiency gains but lacks the extended electric-only range of a PHEV.

4. **Potential for Overheating in Stop-and-Go Traffic**

Some owners report that the hybrid system can cause the engine to overheat in heavy traffic due to the starter-generator s additional load. Proper maintenance (coolant checks, timely servicing) is crucial.

5. **Complexity and Repair Costs**

The integration of hybrid components adds complexity. If issues arise, repairs especially transmission or hybrid-related can be costly, often requiring specialized Mercedes dealership service.

6. **Fuel Economy Not as High as Full Hybrids or EVs**

While the E350 is more efficient than a standard E300, it doesn t match the real-world efficiency of a full hybrid (E350e) or an electric vehicle.

7. **Build Quality Variability**

Some W213 models (especially earlier in the model cycle) have had reports of **plastic panel cracking, electrical gremlins, and minor interior quality issues**. A thorough inspection is recommended before purchase.

8. **Depreciation Over Time**

While Mercedes retains value well, luxury sedans like the E350 depreciate faster than some practical alternatives (e.g., Toyota Camry Hybrid). If you plan to keep it long-term, this may not be a major issue, but it s worth considering.

9. **Limited Off-Road or Sporty Capabilities**

The E350 is a comfortable, refined sedan not a performance or off-road machine. If you need more engagement or capability, a different Mercedes (like the AMG E63) or a non-luxury alternative might be better.

10. **Potential for Software Glitches**

Like many modern cars, the E350 s infotainment and ADAS systems can occasionally experience software bugs or connectivity issues, which may require updates or dealer intervention.

---

### **Ending Conclusion**

The **2021 Mercedes-Benz E350 with the 9G-Tronic 9G250 transmission** is a well-rounded luxury sedan that offers a blend of efficiency, comfort, and refinement. It s an excellent choice if you prioritize **premium driving dynamics, modern technology, and mild-hybrid efficiency** without the complexity of a full hybrid. However, it comes with **higher maintenance costs, potential transmission/hybrid reliability concerns, and a premium price tag** that may not suit budget-conscious buyers.

For those who value **luxury, comfort, and a balance of power and efficiency**, this car is a strong contender. However, if **cost of ownership, long-term reliability, or fuel economy** are top priorities, alternatives like the **Toyota Camry Hybrid, Lexus ES 300h, or BMW 330e** might be worth considering.

---

### **Recommendation**

**Buy the 2021 Mercedes-Benz E350 with the 9G-Tronic transmission if:**

- You prioritize **luxury, comfort, and a refined driving experience**.

- You re willing to **budget for higher maintenance costs** and prefer a well-equipped sedan.

- You appreciate **modern infotainment and hybrid efficiency** without the drawbacks of a full hybrid.

- You plan to **keep the car for at least 5-7 years** and can afford potential repairs.

**Avoid or reconsider if:**

- You re **sensitive to high ownership costs** (parts, labor, insurance).

- You **prioritize fuel economy over luxury** (a full hybrid or electric vehicle may be better).

- You **find transmission reliability concerns** in early adopters of the 9G-Tronic to be a dealbreaker.

- You **prefer a more practical or sporty alternative** (e.g., a Lexus, BMW, or Audi).

**Final Tip:** Before purchasing, **have a pre-purchase inspection (PPI) performed by a Mercedes specialist** to check the transmission, hybrid system, and overall condition. Ensure the vehicle has **full service records** and no history of major transmission or electrical issues. If possible, test-drive it in **stop-and-go traffic** to assess how the hybrid system behaves under real-world conditions.

Details:

FORD E350 VAN 21-22 AT, 138.00 WB. Please see photos and utilize the zoom tool to check condition of part.

part #: e350 prices

  • $73.20-$325.00

specifications autotransmissionsgo:

  • for models: E350
  • for makes: Mercedes
  • for years: 2021
  • part type: Transmission
  • conditions options: Rwd
  • genuine oem: Yes
  • ipn: 400-11535
  • make: Mercedes-benz
  • descriptionpartcondition: This Listing Is Just For One Transmission Only Please Send Us Yo
  • manufacturer warranty: No Warranty

general autotransmissionsgo:

  • Car Truck Parts Accessories > Transmission Drivetrain > Automatic Transmission
  • condition: Used

seller autotransmissionsgo:

  • city: Buffalo, Wyoming
  • # reviews: 5867
  • rating: 97.3%

payments autotransmissionsgo:

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

shipping autotransmissionsgo:

  • cost: $400.00
  • type: Fixed
  • class: Freight
  • service: Flat Rate Freight

offer autotransmissionsgo:

  • quantity: 1
  • sold: 0
  • options: Ship-to-home
  • started: April 24, 2026
  • best offers: True
  • availability: In Stock

returns autotransmissionsgo:

  • time: 30 Days
  • policy: Returns Accepted
  • paid by: Buyer
for models: e350, for makes: mercedes, for years: 2021, part type: transmission, conditions options: rwd, genuine oem: yes, descriptionpartcondition: this listing is just for one transmission only please send us yo, manufacturer warranty: no warranty,
manufacturer: mercedes-benz, category: auto parts > car truck parts accessories > transmission drivetrain > automatic transmission, sku: 23607917546803891,
Mercedes E350 Is Similar To:
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3 offers $73.20–$325.00 USD
  • Used. Offer #1 priced at $73.20 + $10.00 shipping estimate = $83.20* total. Item may show light scuffs, scratches or other imperfections as a result of being a used part All of the parts are tested either before or after removal from the vehicle.+$10.00 shipping
  • Used. Offer #2 priced at $325.00 + $40.00 shipping estimate = $365.00* total. +$40.00 shipping
  • Used. Offer #3 priced at $250.00 + $139.52 shipping estimate = $389.52* total. This came out of my 2005 SL55 with 11,000 miles on it. The product is a genuine OEM Mercedes R230 SL500 SL55 Side Trunk Flaps Convertible Top Motor and mechanism.+$139.52 shipping

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