.ww1100 {width: 1100px;margin-right: auto; margin-left: auto;} .ww1100 img{width: 100%; } @media screen and (max-width: 1090px){ .ww1100 {width: 100%;} .ww1100 img{width: 100%;} }   We specialize in delivering top-tier aftermarket parts for Germany’s most prestigious automotive brands – VW, BMW, Mercedes-Benz, Audi, and Porsche. Our newly upgraded expansion tank series is designed with precision, using advanced materials and engineering techniques that surpass the standards set by original manufacturers (OEM). This makes TiBAO the preferred choice for global B2B wholesalers seeking reliable, high-performance components. TiBAO Expansion Tank Product List: Click Here Product Enhancement Our journey begins with thorough testing and analysis of original parts to identify areas for improvement. Leveraging these insights, we enhance the design of our expansion tanks to boost performance and reliability. In the prototype phase, each tank undergoes a series of high-stress tests, including: High and low-temperature testing to ensure durability across a range of operating conditions High-temperature pulse testing to verify stability under fluctuating temperatures Air-tightness testing and pulse testing to ensure optimal pressure handling Once these tests are passed, we move forward with small-batch production to maintain high standards and consistency. Quality Inspection TiBAO’s production process includes meticulous quality control to ensure each expansion tank meets our exacting standards. Our injection molding workshop conducts various inspections, including: Assembly and dimensional testing for precise fit and function Sensor height sensing tests to ensure compatibility with vehicle systems Air-tightness and burst pressure sampling during and after the welding process Once welded, each product is taken to a specialized testing workshop for comprehensive air-tightness inspections and sensor installation checks. High Qualification Rate Thanks to our rigorous testing and quality assurance protocols throughout both R&D and production, TiBAO expansion tanks boast a qualification rate exceeding 99%. This commitment to quality means our global partners can rely on us to supply products that consistently meet their needs. Enhanced Pressure Tolerance The original factory design of expansion tanks was susceptible to failure at pressures as low as 600 kPa. In contrast, TiBAO’s upgraded expansion tanks are engineered to handle significantly higher pressures: TiBAO Standard: Tested to withstand 800 kPa without any signs of cracking. Enhanced Durability: Capable of handling pressures between 1000 and 1300 kPa, providing increased reliability under extreme conditions. This improvement in pressure tolerance means our tanks are less prone to cracking, resulting in greater longevity and fewer replacements for end-users. Increased Wall Thickness Our design upgrade includes a reinforced wall thickness, as shown in the comparison image. This added thickness boosts the tank’s structural integrity, allowing it to perform reliably even under higher stress conditions. By optimizing material distribution and enhancing thickness, TiBAO expansion tanks can withstand the high demands of modern automotive cooling systems without compromising on safety or durability. Why the Material Change? During vehicle installation, precise alignment between the plug and sensor is crucial. In cases where alignment isn’t perfect, the PA conductive rod was prone to breaking. This vulnerability could lead to potential part failures, resulting in inconvenience and additional costs for vehicle owners. By switching to PP, a material with superior durability, we have minimized the risk of breakage, ensuring our parts can withstand the demands of real-world installations. Benefits of Polypropylene (PP) Improved Toughness: PP is known for its impact resistance, which makes it ideal for components subject to stress during installation. Enhanced Durability: With PP, our parts are less likely to break, extending their lifespan and providing a more reliable experience for our customers. Key Benefits of the Technology Upgrade High-Quality Weld Seams: The upgraded servo-driven welding machine allows us to achieve consistent flat dimensions in the weld seam, which was difficult to maintain with pneumatic systems. This improvement ensures that our parts have high-quality, durable welds, reducing the chance of failure under pressure. Stable Intake Pressure: By maintaining uniformity in weld size, we reduce the impact of external factors such as air pressure fluctuations, leading to more stable intake pressure in the parts. This enhancement directly contributes to the reliability of the vehicle's performance. Why This Matters In manufacturing, even small inconsistencies can lead to big issues in part performance. The TiBAO design ensures that each part we produce is highly reliable, durable, and capable of withstanding varying conditions without compromising quality. With this technology upgrade, we continue to set higher standards in the aftermarket parts industry, reinforcing our reputation for precision and excellence. TiBAO Product Functional Upgrade: Pre-Assembled Water Level Sensors for Expansion Tanks In our continuous effort to enhance functionality and ease of installation, TiBAO is proud to offer expansion tanks that come pre-assembled with external water level sensors. For expansion tanks originally designed to work with an external sensor, we ensure that our products maintain full compatibility by including this essential component. Why Pre-Assembled Sensors? While some manufacturers may omit the water level sensor unless specifically requested, we include it by default. This commitment enhances the product's reliability, minimizes installation issues, and provides our customers with a seamless experience. The sensor itself costs only around $1–$2, yet it plays a critical role in monitoring water levels and ensuring optimal performance. At TiBAO, we believe in offering complete solutions rather than just components. Our pre-assembled sensors are a testament to our focus on quality and customer convenience, saving you time and eliminating the hassle of sourcing additional parts. Ensuring Top Quality: Testing Procedures for TiBAO Expansion Tanks 1. Salt Spray Testing Our salt spray testing machine evaluates the corrosion resistance of the expansion tank’s materials. This test simulates harsh environmental conditions—salt, humidity, and constant exposure to corroding elements—to measure the durability and longevity of the tank under these challenging conditions. This ensures that TiBAO’s expansion tanks withstand not only time but also elements like salty road conditions or coastal environments. 2. Vibration Testing To replicate the stresses experienced on the road, our expansion tanks undergo vibration testing. This test simulates various road conditions to check the tank’s structural integrity and endurance under prolonged vibrations, ensuring they remain intact without developing cracks or leaks. This test is essential for maintaining reliability in real-world driving conditions. 3. High and Low Temperature Testing Chamber Expansion tanks are often exposed to temperature extremes, from the heat generated by the engine to freezing outdoor temperatures. Our high and low temperature testing chamber subjects tanks to both hot and cold cycles, assessing how the materials hold up under such stress. By understanding how materials expand, contract, or resist degradation, we ensure that the tanks remain fully functional regardless of the environment. 4. Alternating High and Low Temperature Testing Chambers To further challenge durability, TiBAO employs alternating high and low temperature testing. This process cycles between extreme hot and cold conditions, forcing materials to expand and contract repeatedly, just as they would during rapid environmental changes. This test verifies that the expansion tanks maintain integrity under rapid temperature fluctuations without warping or cracking. 5. High-Temperature Pulse Testing Machines The high-temperature pulse test subjects the tank to intense, short bursts of high temperatures. This test mimics sudden, high-heat pulses from engines under high-stress conditions, verifying that the expansion tank can handle the thermal shocks without failure. This test is crucial for ensuring the tank’s resilience in extreme, high-performance settings. 6. Spring Lifespan Testing Machines Expansion tanks incorporate various components, including springs, which must remain functional over time. Our spring lifespan testing machine evaluates these springs’ durability, ensuring they maintain their elasticity and resilience through thousands of compression and release cycles. This extends the tank’s overall functionality and reliability. Ensuring Unmatched Quality with Advanced Inspection Equipment Airtightness Detectors Airtightness is crucial for components like expansion tanks, which must retain fluids and gases without leaks under various pressures. Our airtightness detectors measure each product’s capacity to maintain a leak-proof seal under pressure, ensuring that no air escapes from the internal chambers. This inspection guarantees that TiBAO’s products maintain optimal functionality, preventing any loss of performance or efficiency due to leaks. Burst Testing Machines Our burst testing machines push products to their limits, simulating the intense pressures they might encounter in real-world situations. By increasing the internal pressure until the component reaches its maximum threshold, we confirm that TiBAO products can withstand extreme conditions without compromising safety or structural integrity. This test is essential for ensuring each part’s robustness and durability, providing customers with the confidence that our products can handle demanding conditions.  

We understand the needs of B2B wholesalers across the globe, especially when it comes to sourcing reliable and durable automotive parts. Our upgraded expansion tank for Audi A4 and Q5 models is designed to not only meet but exceed industry expectations. With material enhancements, improved design, and durability, this product is perfect for wholesalers seeking to provide long-lasting, high-quality parts to their customers.Click below link to check more products' information about expansion tank for Audi A4, Q5Audi Expansion tankKey Advantages for Global B2B Wholesalers:1. Enhanced Material for Reduced ReturnsThe TiBAO expansion tank has undergone a significant material upgrade, shifting from PA (polyamide) to PP (polypropylene). This change provides several benefits for wholesalers:Reduced Risk of Breakage: PP offers greater flexibility and toughness compared to PA, making it much less prone to breaking during installation and use. This means fewer customer complaints and product returns, enhancing your brand reputation in the market.Lower Maintenance Costs for Customers: By offering a more durable product, your customers will experience fewer maintenance issues, making TiBAO parts a trusted choice for repeat business.2. Optimized for Global Market ConditionsAutomotive parts must be robust to withstand diverse global conditions. Whether in extreme heat, cold, or varying road quality, TiBAO’s expansion tank is built to perform. This durability makes it ideal for B2B wholesalers serving markets with varying climates and driving conditions. The improved resilience of the polypropylene material ensures that the expansion tank will last longer, even under harsh operating environments.3. Perfect Fit for Audi A4 and Q5 ModelsOur expansion tank is engineered for precision, fitting Audi A4 and Q5 models seamlessly. As a B2B wholesaler, offering a product that is easy to install and fits perfectly means fewer installation errors, faster service times, and increased customer satisfaction. The ability to offer a product that fits precisely is a major selling point for auto parts distributors and installers alike.4. Competitive Edge in the AftermarketThe global aftermarket for automotive parts is highly competitive. Offering a product that is engineered with upgraded materials, proven durability, and exact fitment will give your business a distinct advantage. The improved longevity and reduced failure rates of TiBAO’s expansion tank can help your business stand out in a crowded marketplace, attracting long-term customers and larger orders from wholesalers and installers.5. Increased Profit Margins Through ReliabilityBy investing in high-quality, durable parts like TiBAO’s expansion tank, your business can achieve higher profit margins. With fewer warranty claims, less customer dissatisfaction, and the ability to market a premium product, wholesalers can increase their bottom line. Reduced returns and fewer replacements mean greater cost efficiency for your operations.6. Built on Over Two Decades of Industry ExperienceTiBAO has been a trusted name in the aftermarket automotive parts industry for over two decades. We’ve established a reputation for supplying reliable parts to B2B wholesalers worldwide. Our expansion tank is a continuation of our commitment to quality and innovation, ensuring your business is partnering with a brand that understands the demands of the global market.Why TiBAO is the Best Choice for Your B2B NeedsFor global B2B wholesalers, sourcing reliable, durable, and high-performance automotive parts is essential to building a strong brand and maintaining customer loyalty. TiBAO’s expansion tank for Audi A4 and Q5 models offers superior performance, fewer returns, and a better fit, making it the perfect choice for your inventory. With a proven track record, TiBAO is ready to support your business with premium parts that deliver both quality and value.

  Quick & Smooth Installation Design The TiBAO Oil Cooler Complete is designed with ease of installation in mind, ensuring a hassle-free experience for maintenance technicians. Its thoughtful construction allows for quick assembly, reducing downtime during repairs and enhancing overall service efficiency. This makes it a go-to solution for aftermarket professionals and workshops looking for high-quality yet easy-to-install parts. You can see the compact and sturdy structure of the oil cooler, which acts as a "heat sink" for the engine, ensuring optimal cooling for the oil. By preventing oil from overheating, the cooler plays a crucial role in maintaining engine health, prolonging the engine's lifespan, and ensuring smoother performance even under intense operating conditions. The diagram provided highlights key components such as the oil filter, gasket set, housing, and temperature/pressure sensors, all of which are meticulously engineered for long-lasting durability and peak performance. Each part works together to ensure effective heat dissipation and reliable engine operation. This product is ideal for B2B wholesalers looking to provide their customers with superior-quality, easy-to-install parts, catering to brands like Mercedes, Audi, BMW, VW, and Porsche.   Internal Structure The internal structure of the TiBAO Oil Cooler Complete is where its advanced engineering truly shines. Inside the unit, a network of oil flow pipes and cooling medium channels work in tandem to create the core functionality of the oil cooling system. These precisely designed passages allow engine oil to flow efficiently while being cooled by the surrounding medium, ensuring that the oil temperature remains within optimal operating ranges. This intricate system of pipes is designed not only to maximize cooling efficiency but also to prevent any potential issues related to engine overheating. When the oil is adequately cooled, it maintains its viscosity and lubrication properties, essential for protecting critical engine components. Without proper cooling, the engine runs the risk of severe damage due to high temperatures, but TiBAO's oil cooler eliminates these risks by providing consistent and reliable cooling. The attention to detail in the design of these pipes and channels reflects TiBAO’s commitment to excellence, making this oil cooler an indispensable component for wholesalers looking to supply their clients with parts that ensure long-lasting engine performance. Each cooler is tested to meet strict industry standards, ensuring that it performs reliably under all driving conditions. This high-performance oil cooler, specifically engineered for Mercedes, Audi, BMW, VW, and Porsche vehicles, provides an additional layer of protection to engines, helping to increase durability and longevity—an important consideration for B2B wholesalers targeting professional repair shops and aftermarket businesses. Core Performance Benefits: Heat Dissipation: The multi-channel structure provides efficient thermal exchange, ensuring that engine oil is effectively cooled even during prolonged engine operation. Sealing Performance: The cooler undergoes rigorous temperature expansion tests to ensure leak-proof operation, maintaining optimal performance under fluctuating thermal conditions. Integrated Oil Filter Housing: This oil cooler comes equipped with a built-in oil filter housing, further streamlining the installation process and enhancing engine protection. Reliable Flow & Pressure: The reinforced valves maintain steady oil flow under high pressure, ensuring that cooling performance is consistently maintained.

Introducing TiBAO’s Upgraded Expansion Tank for BMW 17 13 7 787 039: A Durable Solution for Global B2B WholesalersAs a trusted partner for aftermarket parts wholesalers, TiBAO is proud to present our Upgraded Expansion Tank (OE: 17 13 7 787 039), engineered specifically for BMW E46, E83, and E53 models. Designed to meet the demands of global markets, this expansion tank offers superior durability and performance, addressing the common issues faced by the original factory design. With enhanced features that increase pressure resistance and reduce cracking, TiBAO’s expansion tank is an ideal choice for B2B wholesalers looking to offer reliable, high-quality aftermarket parts to their customers.Key Features and Upgrades1. Reinforced DurabilityThe original factory design had a wall thickness of 2.68mm, which led to vulnerability under high pressures. We have significantly improved this by increasing the wall thickness to 3.59mm, enabling the tank to handle much higher pressures. This design upgrade helps the tank withstand up to 1000-1300 kPa—a substantial improvement over the factory design.2. Enhanced Resistance to CrackingStandard expansion tanks often fail under pressure as low as 600 kPa, but TiBAO’s tank is rigorously tested to endure pressures up to 800 kPa without any signs of cracking. Our advanced materials and engineering ensure that even at higher pressure thresholds, our tanks maintain their structural integrity, giving drivers peace of mind on the road.3. Significantly Improved Pressure HandlingThanks to the increased wall thickness and robust construction, our upgraded expansion tank can now handle significantly higher pressures, ranging from 1000 to 1300 kPa. This extended capacity ensures superior durability and a longer service life, even in extreme conditions.Why Choose TiBAO’s Expansion Tank?Higher Resistance: Our product addresses the original design weaknesses, making it more resistant to cracking and high-pressure failures.Improved Reliability: With enhanced durability and pressure resistance, TiBAO's expansion tank offers better performance and longer-lasting service.Perfect Fit for BMW Models: Designed specifically for BMW E46, E83, and E53 models, our expansion tank ensures a seamless fit and superior performance.Upgrade your BMW with confidence—choose TiBAO’s reinforced expansion tank, and experience improved reliability, safety, and peace of mind for years to come.

TiBAO continues to set the standard in the aftermarket automotive parts industry with our high-quality window regulator, precisely engineered to match the original equipment specifications for Volkswagen models. Designed to meet the rigorous demands of both installers and end-users, this product offers superior performance, durability, and reliability for automotive wholesalers.Product Overview:The TiBAO Window Regulator (OE: 6Q4 839 462) is a direct-fit replacement part compatible with several key Volkswagen models, including:Volkswagen POLO (9N_, 9A_) (2001–2009)DERBY IV Saloon (9A4, 9A2, 9N2, 9A6)POLO IV Saloon (9A4, 9A2, 9N2, 9A6) from 2002 to present.Technical Features and Benefits:OEM-Specific Fitment: This window regulator has been developed to adhere to the precise dimensions and tolerances of the original equipment (OE) part, ensuring a flawless fit without the need for additional modifications. This results in smoother installation processes and greater efficiency in the workshop.High-Strength Construction: Crafted from premium-grade materials, the TiBAO window regulator ensures enhanced structural integrity and wear resistance. The regulator’s components, including its pulley system and cable, are engineered to maintain optimal tensile strength, which minimizes mechanical failures during operation.Corrosion-Resistant Coating: To ensure longevity, the regulator is treated with a specialized anti-corrosion coating. This feature protects it from moisture and environmental degradation, extending its service life, even in harsh climates.Optimized Window Operation: The regulator's gear and linkage systems are designed for smooth, consistent movement. The motorized variants, if included, are precisely calibrated to deliver efficient and reliable power to the window mechanism, ensuring quick response and stability across all operating conditions.Advanced Engineering for Noise Reduction: TiBAO’s window regulator incorporates noise-dampening technology, which reduces operational noise and vibration, enhancing overall vehicle comfort.Why TiBAO is the Ideal Partner for Automotive Wholesalers:Global Supply Chain Excellence: TiBAO has established a robust logistics and supply chain network, ensuring fast delivery and reliable stock availability for wholesalers worldwide. Our partnerships in key markets across the Middle East, Africa, and Asia allow us to meet the demands of a competitive market.Certified Quality Assurance: TiBAO’s window regulators undergo rigorous quality control and testing protocols to meet or exceed OE performance standards. This ensures that our parts provide long-lasting functionality, significantly reducing returns or warranty claims for our wholesale partners.Profit-Driven Margins: TiBAO’s competitive pricing structure allows wholesalers to maintain favorable margins while offering their clients high-quality products that reduce vehicle downtime and improve customer satisfaction.Specialization in Aftermarket Parts: With over 20 years of experience in the aftermarket industry, TiBAO delivers parts that are trusted by distributors and installers alike. Our range of products, including this window regulator, is built to meet the growing demands of modern vehicle owners and repair facilities.Application:This window regulator (OE: 6Q4 839 462) is specifically tailored for use in the following Volkswagen models:POLO (9N_, 9A_), a widely popular compact model produced between 2001 and 2009.DERBY IV Saloon (9A4, 9A2, 9N2, 9A6), known for its reliability and efficiency.POLO IV Saloon, extending compatibility for vehicles from 2002 to present, providing a wide application range for wholesalers.Conclusion:For B2B wholesalers looking to expand their portfolio with reliable, precision-engineered window regulators, the TiBAO Window Regulator (OE: 6Q4 839 462) offers unparalleled value. With its OEM-specific fitment, robust construction, and advanced features, this product meets the needs of today’s demanding automotive repair market. Partner with TiBAO to ensure your clients receive the highest standards of quality and performance.

When it comes to ensuring the smooth operation of your vehicle’s cooling system, the quality of the water pump plays a crucial role. TiBAO's water pump with OE number 030 121 004 A is designed to provide both reliability and efficiency, making it the ultimate cost-effective strategy for your business. Compatible with VW Golf, SEAT Cordoba (6K1, 6K2), and Cordoba Sedan (6K1, 6K2), this water pump offers long-lasting performance tailored to your customers' needs.OE number: 030 121 004 ACar Models: VW Golf, SEAT Cordoba (6K1, 6K2), Cordoba Sedan (6K1, 6K2)Key Features:Precise OE Fitment: This water pump is designed to meet or exceed the original specifications, ensuring an exact fit for the VW and SEAT models listed.Durable Materials: Manufactured from high-quality materials to resist wear and corrosion, enhancing the pump's lifespan.Efficient Cooling Performance: This water pump maintains optimal engine temperatures, preventing overheating and engine failure.Easy Installation: Engineered for seamless installation to minimize downtime for your customers.Common Water Pump Problems and SolutionsLeakage: Water pumps can develop leaks due to worn-out seals, leading to coolant loss and overheating.Solution: TiBAO’s water pumps feature reinforced seals and gaskets, ensuring a tight fit and preventing leaks.Noisy Operation: A failing bearing can cause loud noises or grinding sounds.Solution: Our water pump includes a high-quality bearing to reduce friction and ensure silent operation.Overheating: A malfunctioning pump may not circulate coolant properly, causing the engine to overheat.Solution: TiBAO’s water pump provides efficient coolant flow, keeping the engine temperature in check and preventing overheating.Water Pump Replacement: When and Why It’s NecessaryReplacing a water pump is a critical maintenance task that should never be overlooked. Water pumps wear out over time, especially in older vehicles or under harsh driving conditions. Here are some key reasons why timely replacement of a water pump is crucial:Coolant Leakage: Over time, the seals and gaskets within the pump can degrade, leading to coolant leakage. This not only reduces the efficiency of the cooling system but also risks overheating the engine.Overheating: A failing water pump may no longer effectively circulate coolant throughout the engine. Overheating can lead to severe engine damage, such as cracked cylinder heads or a blown gasket.Noisy Operation: As the water pump’s bearing starts to wear out, drivers may notice a grinding or whining sound coming from the engine bay. This noise signals that the pump’s components are deteriorating and need immediate attention.Rust and Corrosion: Over time, rust and corrosion may build up inside the water pump, limiting its ability to function correctly and leading to premature failure.Steps for Replacing a Water PumpDrain the Coolant: Safely drain the coolant from the vehicle’s cooling system to prevent any spillage.Remove Belts and Pulleys: Take off the serpentine or timing belts connected to the water pump. Make sure to note the placement of each component for reassembly.Disconnect the Water Pump: Loosen and remove the bolts holding the water pump in place. Carefully detach the pump from the engine, ensuring all gaskets and seals are properly removed.Install the New TiBAO Water Pump: Place the new water pump with OE 030 121 004 A into position, making sure it aligns perfectly with the engine. Install the new gaskets and tighten the bolts securely.Reassemble Components: Replace the belts and pulleys and make sure they are properly tensioned to avoid slippage or strain on the new pump.Refill Coolant and Test: Refill the cooling system with fresh coolant, and run the engine to ensure the new water pump is operating efficiently without leaks.By replacing the water pump at the right time, vehicle owners can avoid costly engine damage and maintain peak performance. TiBAO's water pump (OE 030 121 004 A) is engineered for long-lasting durability, ensuring that your customers experience fewer breakdowns and reduced maintenance costs. Keep your inventory stocked with TiBAO’s premium water pumps to provide reliable solutions for VW Golf and SEAT Cordoba owners globally.