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Bosch Timing Belt Kit – Comprehensive Overview
The Bosch 1 987 948 023 Timing Belt Set is a high‑performance component designed for precision timing in modern internal combustion engines. This kit includes all essential parts required to replace the engine’s timing belt system, ensuring optimal synchronization between camshaft(s) and crankshaft.
Key Components Included
- Timing Belt (Zahnriemen): A durable, reinforced rubber belt with steel teeth for reliable engagement with pulleys.
- Tensioner (Spannrolle): An automatic or manual tensioner that maintains proper belt tension throughout engine operation.
- Idler Pulleys: High‑strength idlers that guide the belt and reduce wear on critical components.
- Water Pump (optional in some kits): A replacement pump integrated into the kit for added convenience.
- Installation Hardware: All necessary bolts, nuts, washers, and spacers to assemble the system correctly.
Compatibility and Vehicle Coverage
The Bosch 1 987 948 023 kit is engineered for a wide range of engines, particularly those found in Audi A4 B5 (Berline & Avant), Volkswagen, and other European models. It supports both single‑cam and dual‑cam configurations, making it suitable for:
- Audi 1 987 948 023 078198119A – a common timing belt replacement part for various Audi engines.
- Volkswagen/Audi 078198119A – ensuring compatibility across multiple engine families.
- Other European vehicles that use the same belt path and pulley layout, as indicated by the multilingual product listings (e.g., “Kit de distribution”, “Juego de correas de distribución”).
Material Quality and Durability
The belt is constructed from a high‑grade rubber compound reinforced with steel cords. This combination delivers:
- Extended service life – typically rated for up to 60,000–100,000 miles depending on operating conditions.
- Heat resistance – capable of withstanding temperatures above 200 °C without significant degradation.
- Low noise operation – engineered teeth profiles reduce squeal and vibration during engine startup.
Tensioner Technology
The tensioner in this kit is a spring‑loaded or hydraulic unit that automatically adjusts belt tension. Benefits include:
- Consistent timing accuracy – eliminates slack that could lead to misalignment.
- Reduced maintenance – automatic adjustment negates the need for periodic manual checks.
- Enhanced safety – a properly tensioned belt is less likely to slip or break under load.
Installation Procedure Overview
- Preparation: Disconnect battery, remove engine covers, and locate the existing timing belt assembly.
- Removal: Carefully release tensioner, detach idler pulleys, and slide out the old belt. Inspect all components for wear.
- Installation of New Belt: Route the new belt around the camshafts, crankshaft, and idlers according to the manufacturer’s diagram.
- Tensioner Setup: Install the new tensioner, ensuring it is correctly positioned and engaged with the belt.
- Final Checks: Verify that the belt rotates freely, check for proper alignment of all pulleys, and reassemble engine covers.
- Testing: Reconnect battery, start the engine, and listen for any abnormal noises. Confirm timing by checking spark plug positions or using a diagnostic tool.
Benefits of Choosing Bosch
- Reputation for Reliability – Bosch is a globally recognized brand known for high engineering standards.
- Precision Engineering – components are manufactured to tight tolerances, ensuring seamless fitment.
- After‑Sales Support – comprehensive technical documentation and customer service available in multiple languages.
- Environmental Compliance – materials meet EU regulations for recyclability and reduced emissions during production.
Maintenance Tips Post‑Installation
To maximize the lifespan of your new timing belt system:
- Regular Inspection: Check belt tension every 10,000 miles or as recommended by the vehicle manufacturer.
- Oil Quality: Maintain engine oil at the specified viscosity; contaminated oil can accelerate belt wear.
- Avoid Over‑Torqueing: When tightening bolts on pulleys and tensioner, follow torque specifications to prevent damage.
- Monitor Engine Temperature: Excessive heat can degrade rubber components; ensure cooling system is functioning properly.
Conclusion
The Bosch 1 987 948 023 Timing Belt Set delivers a comprehensive, high‑quality solution for engine timing replacement. Its robust construction, wide compatibility range, and ease of installation make it an ideal choice for both professional mechanics and knowledgeable DIY enthusiasts seeking to maintain their vehicle’s performance and reliability.
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 87.40 EUR  164.38 EUR  164.08 EUR |
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| Brand |  Bosch is a brand of power tools and appliances. The company was founded in 1886 and produces a wide range of power tools, appliances, and accessories. Bosch tools are known for their quality and durability, and the company is a leader in innovation and design. |
| Model | Bosch 1 987 948 023 |
| MPN | Bosch 1987948023 |
| ID | 7096532 |
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