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🚀 Restore Your Tesla’s Thermal Performance
Is your Tesla displaying the dreaded "Thermal System Service Required" alert? Are you experiencing inconsistent cabin heating or significantly slower Supercharging speeds during winter?
The Octovalve (1506859-00-E) is the "brain" of your Tesla’s heat pump system. A failing valve can lead to inefficient coolant routing, affecting everything from passenger comfort to long-term battery health. Our OEM-grade replacement is engineered to restore your vehicle to factory-fresh efficiency.
🔹 Product Description
The Tesla Model 3/Y Heat Pump Octovalve 1506859-00-E is a key component in the vehicle’s thermal management system. Designed for Model 3 and Model Y equipped with a heat pump, this octovalve regulates coolant flow between the battery, drive unit, and cabin heating system. Proper operation helps maintain stable temperatures in both hot and cold driving conditions.
Designed for Heat Pump Systems: Model 3 and Model Y vehicles equipped with Tesla’s integrated heat pump rely on the octovalve to manage heat exchange. When functioning correctly, it contributes to improved winter efficiency and consistent cabin comfort without unnecessary energy draw.
Peak Efficiency in Any Weather: Stop wasting battery power on inefficient heating. Our Octovalve ensures your Tesla manages heat smarter, extending your range when you need it most
Direct Replacement for 1506859-00-E: Manufactured to match original mounting points and connector locations, this unit corresponds to part number 1506859-00-E. It is intended to replace a faulty or leaking octovalve that may trigger HVAC or thermal system alerts.
Supports Battery Temperature Management: Thermal stability is important for battery longevity and charging performance. A properly functioning octovalve helps maintain appropriate battery temperatures during Supercharging, cold starts, and extended highway driving.
Restores Heating and Cooling Performance: Common symptoms of a failing octovalve include reduced cabin heat, inconsistent climate control, or thermal system warnings. Replacing a malfunctioning unit can restore proper coolant routing and improve HVAC response.
Professional Installation Recommended: Because the octovalve is integrated into the vehicle’s coolant loop, installation requires proper coolant handling and system bleeding procedures. Professional service is recommended to ensure correct fitment and system calibration.
Common Error Codes Fixed:
VCFRONT_a447 (Thermal system performance degraded)
THC_w0135 (Heat pump compressor performance)
VCFRONT_a192 (Coolant flow restricted)
Why Choose This Octovalve?
🛡️ OEM-Spec Precision: Manufactured to the exact 1506859-00-E specifications. Features the correct 4-pin connector and mounting points for a true plug-and-play installation.
❄️ Optimized for Heat Pump Systems: Specifically designed for Model 3/Y vehicles equipped with Tesla’s integrated heat pump. Restores up to 15-20% of winter range lost due to thermal management malfunctions.
🔋 Battery Longevity & Charging: Ensures precise coolant flow to the drive unit and battery pack. This is critical for maintaining optimal battery temperatures during pre-conditioning and high-speed Supercharging.
💎 Durable Construction: Built with reinforced high-temperature polymers to withstand extreme thermal cycles (-30°F to 150°F) and prevent common coolant leaks.
🛠️ Vehicle Compatibility (Fitment Guide)
This part is exclusively for Tesla vehicles equipped with the Integrated Heat Pump System:
Tesla Model 3: 2017-2023
Tesla Model Y: 2017-023
📦 What’s in the Box?
1 x Brand New Octovalve Assembly (Part No. 1506859-00-E)
Note: Gaskets and seals are pre-installed for your convenience.
Frequently Asked Questions (FAQ)
Q: Can I install this myself?
A: While the physical installation is straightforward with standard tools, we highly recommend professional service. Replacing the Octovalve requires a vacuum coolant refill and system bleeding via Tesla Service Mode/Toolbox to avoid air pockets.
Q: Will this clear my "Thermal System" error codes?
A: If your diagnostics point to a coolant flow or valve position error, this replacement is the direct solution. Once installed and calibrated, the error codes should be cleared.
Shipping time depends on the product.
Free shipping on all orders $129+ worldwide!
For all orders under $129, the shipping fee is $5
| Product Type | Handling Time | Shipping time |
| Fast Shipping Products | 0-1 calendar days | 4-12 calendar days |
| Standard Products | 1-2 calendar days | 6-12 calendar days |
| Customized Products | 3-5 calendar days | 10-16 calendar days |
We will make every effort to deliver your package ASAP. However, additional time may be required due to invalid addresses and custom clearance issues. We have many cooperative express companies, such as DHL, FedEx, UPS, and USPS. We will choose the most suitable mode of transportation for you according to your country.
If the product is a customized product and in production, no refund or return without quality problems. After we receive your return, our quality assurance team will check your return. After the inspection is complete, our customer service representative will process your return refund or assist you in placing a replacement order for a replacement.
Damages and Issues:
If your product arrives damaged, or you receive the wrong product, please email us immediately at contact@teslaacessories.com with clear pictures of the damaged or incorrect product. We will review it in 1 business day and upon approval, we will dispatch a brand new replacement. Your 100% satisfaction is important to us.
Return Qualification Requirements:
1). Orders exceeding 1 month do not accept return or exchange of goods.
2). Orders only accept return or exchange of goods within 30 days.
3). No return or exchange on customized products(eg., Yoke Steering Wheel)
Refund instructions:
You will be responsible for paying the freight of the returned goods, as well as the possible customs duties and other expenses. Freight is nonrefundable. If you receive a refund, the return freight will be deducted from your refund.
For an item to be eligible for a return, it must remain in the condition it was received: unused, unworn, tagged, and in its original packaging.
Prior to initiating a return, please reach out to us at contact@teslaacessories.com. You can expect a response from us within 1 business day. Once your return is accepted, we will share detailed instructions for your return process. Please provide us with the tracking number and your order number once the return shipment has been arranged.
Upon receiving and verifying that the returned product adheres to our return conditions, we will commence your refund process within 1 business day using your original payment method. Be advised that all refunds may take up to 2 business days to process once we receive the returned item.Returns sent without prior approval will not be accepted.
Return Fee
Customers are not required to pay for return shipping if a product is returned because it is "broken, missing, or wrong." If the product is returned due to "bought wrong, I don't want it anymore", the customer shall bear the return shipping cost, and the actual shipping cost will be deducted from the refund. In either case, there is no restocking fee for returns.
Non-Returnable Items:
Certain items, such as custom products (special orders or personalized items) and gift cards, cannot be returned. If you have concerns about your specific item, please contact us.
It is essential to ensure accuracy when filling out the return address. Please be aware that we cannot be held responsible for any returns that are lost or misdirected due to incorrect address information.
If due to our reasons, the goods received are damaged or not correct, the consumer is not required to bear the shipping fee for this reason.
Should you have any queries regarding returns and refunds, please don't hesitate to reach out to us at contact@teslaacessories.com.
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