OTHER 13.90.7.636.157-GEN Fuel Tank Breather Valve Line 13.90.7.636.157--GEN

( Brand: Other ), ( Manufacturer Part Number: 13.90.7.636.157--GEN ), ( Part Type: Fuel Valve Line Tank Breather )

Review OTHER Bmw Fuel Tank Breather Valve Line Gen fits 2010–2013

The **Gen 2 BMW Fuel Tank Breather Valve Line (Part Number: 13.90.7.636.157)** is a critical component of your vehicle s emissions and fuel system, specifically designed for **2010 2013 BMW models** equipped with the **N52, N54, or N55 inline-6 engines** (commonly found in the **335i, 335d, 535i, 535d, and Z4 sDrive35i**). This high-performance, dual-line breather system ensures proper ventilation of the fuel tank while maintaining precise pressure control to optimize engine efficiency, reduce emissions, and prevent fuel vapor buildup all while adhering to strict **EU5 and U.S. EPA emissions standards**.

Crafted from **high-grade, corrosion-resistant materials**, this breather valve line is engineered to withstand the demanding conditions of modern fuel-injected engines, including exposure to **fuel vapors, moisture, and temperature fluctuations**. The system features a **dual-tube design**, with one line responsible for **venting excess fuel vapors** from the tank to the intake manifold (or charcoal canister, depending on the model) and the other serving as a **pressure relief pathway** to prevent over-pressurization, which could lead to leaks or system failures. The **genuine BMW part** is built to exacting specifications, ensuring a **perfect fit** with the vehicle s original wiring harness and mounting points, eliminating the risk of compatibility issues often found with aftermarket alternatives.

Beyond its functional role, this breather valve line plays a pivotal part in **enhancing engine performance and longevity**. By regulating fuel tank pressure, it prevents **vapor lock** a condition where fuel turns to gas under high heat, disrupting fuel flow and causing stalling or rough idling while also reducing **evaporative emissions** that could trigger **check engine lights (P0440, P0442, or P0455 codes)**. The **genuine OEM component** is also designed to integrate seamlessly with the vehicle s **E-Gas (electronic fuel injection) system**, ensuring accurate sensor readings and optimal fuel delivery. Whether your BMW is used for **daily commuting, spirited driving, or long-distance travel**, this breather valve line operates silently and reliably, contributing to a **smooth, efficient, and emissions-compliant** driving experience.

For **BMW owners seeking genuine replacement parts**, this **13.90.7.636.157 breather valve line** is the ideal choice, offering **superior durability, precise engineering, and full compatibility** with your vehicle s original equipment specifications. Proper installation preferably by a **certified BMW technician** is essential to ensure the system functions correctly, as incorrect routing or sealing can lead to **fuel odor, reduced fuel economy, or even engine misfires**. When sourced from an **authorized BMW dealer or reputable aftermarket supplier**, this part guarantees the same **quality and performance** as the original, helping you maintain your vehicle s **value, reliability, and driving dynamics** for years to come.

### **Pros and Cons of buying a BMW Fuel Tank Breather Valve Line (Part Number: 13.90.7.636.157, Gen 1 for 2010 2013 Models)**

1. **Direct Fitment** This is a genuine or high-quality aftermarket replacement designed specifically for BMW models from 2010 to 2013, ensuring compatibility without modifications.

2. **Prevents Fuel Sloshing & Vapor Buildup** A faulty breather valve line can cause fuel sloshing in the tank, leading to rough idle, stalling, or even fuel pump failure. Replacing it restores proper ventilation, reducing these risks.

3. **Prevents Fuel Leaks & Tank Damage** A clogged or damaged breather line can cause excessive pressure inside the fuel tank, potentially leading to leaks or even tank deformation over time.

4. **Improves Engine Performance & Fuel Efficiency** Proper fuel tank ventilation ensures optimal fuel delivery, reducing engine misfires and improving overall drivability.

5. **Prevents Check Engine Light (CEL) & Codes** A failing breather valve line can trigger OBD-II codes (e.g., P0171, P0174 for lean conditions or P0446 for EVAP system issues). Replacing it may resolve these codes.

6. **Long-Term Reliability** Using a quality part (either OEM or a reputable aftermarket brand) extends the lifespan of the fuel system and prevents more costly repairs down the line.

7. **Easy Installation** The line is typically a simple clip-on or bolted connection, making it a straightforward DIY replacement for those with basic mechanical skills.

1. **Cost** While not excessively expensive, the part itself (along with labor if not DIY) adds to maintenance costs. Prices can vary depending on brand (OEM vs. aftermarket).

2. **Potential Counterfeit Parts** If purchasing from an untrusted seller, there s a risk of receiving a low-quality or fake part that fails prematurely. Always buy from reputable suppliers.

3. **Additional Diagnostics May Be Needed** If the issue is part of a larger EVAP system problem (e.g., faulty canister purge valve or cracked hoses), replacing just the breather line may not fully resolve the problem.

4. **Time-Consuming for DIYers** While not complex, accessing the fuel tank (especially in rear-wheel-drive BMWs) may require removing the rear seat or undercarriage components, depending on the vehicle s configuration.

5. **Environmental Considerations** If the old line is leaking fuel vapors, disposal should be handled properly to avoid environmental contamination.

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### **Conclusion**

The **BMW fuel tank breather valve line (13.90.7.636.157, Gen 1)** is a **critical but often overlooked maintenance item** that plays a key role in preventing fuel system failures, engine performance issues, and potential long-term damage. Replacing it is a **cost-effective preventive measure** that can save money by avoiding more serious problems later.

The **pros far outweigh the cons**, especially if the part is sourced from a trusted supplier and installed correctly. The **main drawbacks** (cost, potential counterfeit parts, and minor installation challenges) are outweighed by the **benefits of improved reliability, fuel efficiency, and engine protection**.

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### **Recommendation**

1. **Source the Part Carefully** Purchase from a **BMW-approved supplier, an authorized dealer, or a well-reviewed aftermarket brand** (e.g., ACDelco, Denso, or Bosch for OEM quality, or reputable third-party brands like Mann or Febi). Avoid unknown sellers on marketplaces.

2. **Verify Compatibility** Double-check that **13.90.7.636.157** is indeed the correct part for your specific **2010 2013 BMW model and engine variant** (e.g., 335i, 535i, X5, etc.). Some Gen 1 models may have slight variations.

3. **Consider Professional Installation** If you re uncomfortable working on the fuel system, have a **trusted mechanic** perform the replacement to ensure proper sealing and connection.

- **Cracks or leaks** in the fuel tank itself.

- **Clogged EVAP canister purge valve** (common failure point).

- **Damaged or kinked hoses** in the EVAP system.

5. **Reset the ECU** After replacement, use an **OBD-II scanner** to clear any stored EVAP-related codes (e.g., P0446) to ensure the system recognizes the new part.

- **No more CELs** related to the EVAP system.

- **Smoother idle and acceleration**.

- **No fuel leaks or strange odors** near the fuel tank area.

**Final Verdict:** **Worth the replacement.** This is a **proactive fix** that prevents minor issues from becoming major (and expensive) problems. If you re experiencing **rough idling, stalling, or EVAP-related codes**, replacing the breather line should be a priority. For preventive maintenance, it s a **smart long-term investment** in your BMW s fuel system health.

Details:

Fuel Tank Breather Valve with Line for 535i 2011 -2012, 2010 -2012, X5 X6 drive X3 640i 2012, Gran Coupe 2013, Active Hybrid 5 2012 Fits 2011 2012 BMW ; 2010 2012 ; 2011 2012 ;2012 ;2013 ;.

part #: 13907636157 prices

• $20.00-$99.99

specifications fueltanksysteme:

• for makes: Bmw
• for years: 2010-2013
• brand: Other
• mpn: 13.90.7.636.157--gen
• part type: Fuel Valve Line Tank Breather

seller fueltanksysteme:

• rating: 99.6%
• # reviews: 22012
• city: Los Angeles, California

payments fueltanksysteme:

• Other
• credit card: Visa
• wallet: Apple-pay

offer fueltanksysteme:

• availability: In Stock
• sold: 0
• started: May 11, 2026
• options: Ship-to-home

returns fueltanksysteme:

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

general fueltanksysteme:

• Car Truck Parts Accessories > Air Fuel Delivery > Fuel Tanks Filler Necks
• condition: New

shipping fueltanksysteme:

• cost: $22.96
• class: Standard
• type: Calculated
• service: FedEx Ground / FedEx Home Delivery
• carrier: FedEx
• transit: 3-7 Days

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