OTHER 13.90.7.636.146-MOT Fuel Tank Breather Valve Line 13.90.7.636.146--MOT Mot

( Brand: Other ), ( Manufacturer Part Number: 13.90.7.636.146--MOT ), ( Part Type: Fuel Valve Line Tank Breather )

Review OTHER Bmw Fuel Tank Breather Valve Line Mot fits 2012–2018

The **MOT-approved BMW Fuel Tank Breather Valve Line (Part Number: 13.90.7.636.146)** is a precision-engineered component designed to maintain optimal pressure regulation within the fuel system of BMW vehicles manufactured between **2012 and 2018**. This critical part plays a vital role in ensuring efficient fuel delivery, preventing vapor lock, and reducing emissions by allowing controlled airflow into and out of the fuel tank while the engine operates. Crafted from high-quality materials, the breather valve line is built to withstand the demands of modern automotive systems, featuring a durable, flexible hose construction that resists kinking, cracking, or degradation from exposure to fuel vapors, heat, and engine compartment conditions. Its seamless integration with the fuel tank s ventilation system helps prevent dangerous pressure buildup, which can lead to fuel leaks, reduced engine performance, or even MOT failure due to evaporative emissions exceeding legal limits. The line is engineered to fit seamlessly with BMW s fuel tank breather assembly, ensuring a secure and leak-proof connection at both ends, typically secured with robust clamps or snap-fit couplings. Whether installed in high-performance BMW models or everyday driving vehicles, this component guarantees reliable operation, contributing to smoother engine performance, extended fuel system longevity, and compliance with emissions regulations. For owners seeking a direct replacement that matches OEM specifications, this breather valve line is an essential upgrade or maintenance solution, ensuring peace of mind during MOT inspections and daily driving.

### **Pros and Cons of buying a BMW Fuel Tank Breather Valve Line (Part Number: 13.90.7.636.146, MOT Approved, Fits 2012 2018 Models)**

1. **Direct Fitment for BMW Models (2012 2018)** This part is specifically designed for BMW vehicles within the specified range, ensuring compatibility without modifications.

2. **MOT Approved** The part meets UK MOT standards, meaning it complies with emissions and safety regulations, reducing the risk of failing an MOT inspection.

3. **OEM Quality (or High-Quality Aftermarket)** Depending on the brand, this part may be manufactured to BMW s original equipment standards, ensuring durability and proper function.

4. **Prevents Fuel Tank Issues** A faulty breather valve can cause fuel tank pressure problems, leading to leaks, fuel starvation, or even fuel line cracks. Replacing it proactively can prevent costly repairs.

5. **Easy Installation** As a direct-fit part, it should integrate smoothly with the existing system, reducing installation time and complexity.

6. **Improves Engine Performance** A properly functioning breather valve ensures correct fuel vapor management, which can help maintain optimal engine performance and fuel efficiency.

7. **Warranty Coverage (If Purchased from a Reputable Seller)** Some suppliers offer warranties, providing peace of mind against defects.

1. **Potential Counterfeit Risk** If purchased from an untrusted seller (e.g., unverified online marketplaces), there s a risk of receiving a low-quality or fake part that fails prematurely.

2. **Price Variability** While generally affordable, prices can fluctuate based on brand, seller, and demand. Some aftermarket parts may be cheaper but lack longevity.

3. **Installation Challenges (If DIY)** If the vehicle has been modified or the breather line is corroded, installation might require additional effort or professional help.

4. **Mixed Quality Among Brands** Not all aftermarket parts are equal; some may wear out faster than OEM components, leading to repeated replacements.

5. **Limited Availability in Physical Stores** This part may not be stocked in local auto parts stores, requiring online purchase, which could introduce shipping or authenticity concerns.

6. **Possible Overkill for Minor Issues** If the breather valve is only slightly degraded, replacing it might be unnecessary unless symptoms (e.g., fuel leaks, rough idling) persist.

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### **Conclusion**

The **13.90.7.636.146 BMW fuel tank breather valve line (MOT-approved)** is a practical and necessary replacement for vehicles in the 2012 2018 range experiencing breather-related issues. Its **direct fitment, MOT compliance, and potential performance benefits** make it a sound investment for preventing fuel system failures. However, **buying from a reputable supplier** (e.g., official BMW dealers, trusted online retailers like Amazon, or specialized auto parts stores) is critical to avoid counterfeit or subpar parts.

If the vehicle has **no existing breather problems**, the replacement may not be urgent unless recommended by a mechanic. In cases of **active symptoms (fuel leaks, check engine lights, poor performance)**, prioritizing this part is advisable to avoid more severe damage.

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### **Recommendation**

1. **Verify the Part s Authenticity** Purchase from a seller with a strong return policy and positive reviews (e.g., BMW Approved Parts, Genuine Parts Company, or well-known aftermarket brands like Mann Filter, Bosch, or Dorman).

2. **Check for Symptoms** Only replace if experiencing issues like fuel odors, engine hesitation, or MOT failures related to the breather system.

3. **Consider Professional Installation** If unsure about DIY, have a mechanic install it to ensure proper sealing and function.

4. **Compare Prices** While quality is paramount, compare prices across trusted retailers to get the best value without compromising on part integrity.

5. **Keep a Backup** If the vehicle is frequently driven, consider keeping a spare or ordering a replacement in advance to avoid downtime.

**Final Verdict:** This part is **worth buying for reliability and MOT compliance**, but **source it carefully** to ensure longevity and avoid counterfeit risks. If the vehicle is running fine, the replacement may not be immediately necessary unless advised by a professional.

Details:

Fuel Tank Breather Valve with Line for Z4 2012 -2016, X1 2012 -2015, X4 2015-2018 Fits 2012 2016 BMW ; 2012 2015 ;2015-2018 ;.

part #: 13907636146 prices

• $20.00-$99.99

specifications fueltanksysteme:

• for makes: Bmw
• for years: 2012-2018
• brand: Other
• mpn: 13.90.7.636.146--mot
• part type: Fuel Valve Line Tank Breather

shipping fueltanksysteme:

• service: FedEx Ground / FedEx Home Delivery
• carrier: FedEx
• type: Calculated
• class: Standard
• cost: $22.96
• transit: 4-8 Days

payments fueltanksysteme:

• wallet: Google-pay
• Other
• credit card: Mastercard

seller fueltanksysteme:

• # reviews: 21990
• rating: 99.6%
• city: Los Angeles, California

general fueltanksysteme:

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

offer fueltanksysteme:

• sold: 0
• availability: In Stock
• quantity: 8
• options: Ship-to-home
• started: May 8, 2026

returns fueltanksysteme:

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

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