VW Golf Mk7 Skoda Octavia Seat Leon 5F Bare Engine CJZB 1.2 TSI 86HP WARRANTY

Warranty and technical condition of the part

The engine is sold with a 90-day warranty.

The power unit was tested before removal and is in full working order.

Listing details

The offer applies to a bare engine.

The engine is sold without accessories (e.g. alternator, starter motor, manifolds, injectors, turbocharger, etc.).

VW Golf Mk7 Skoda Octavia Seat Leon 5F Bare Engine CJZB 1.2 TSI 86HP WARRANTY is an original, used engine block from the Volkswagen range, designed for compact petrol powertrains. The bare engine serves as a solid foundation for professional repairs or a complete rebuild of the drivetrain in popular VAG group models.

Specifications and technical data

• SKU: 04E100031C-2
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 04E100031C
• Substitutable numbers: 04E100031C, 04E 100 031 C, 04E100098BX, 04E 100 098 BX
• Fuel type: Petrol
• Number of cylinders: 4
• Part type: Engine Long Block
• Category: Engines
• Engine code: CJZB
• Mileage: 99 000

Application and compatibility

The presented engine block is designed for installation in VAG group vehicles, such as the VW Golf Mk7, Skoda Octavia, and Seat Leon 5F, equipped with the CJZB petrol unit. The four-cylinder design ensures balanced operation and good refinement, which is important for both daily city driving and long-distance travel.

The bare engine is a solution for users and workshops that want to transfer accessories from their existing engine (turbo, injectors, manifolds, auxiliary equipment) to a verified block with a cylinder head. This configuration allows for optimized repair costs while maintaining full control over the selection of additional components.

Construction and technical characteristics

The CJZB engine belongs to the modern TSI family of units, combining turbocharging with direct petrol injection. The four-cylinder layout promotes even load distribution and stable operation across the entire rev range. Thanks to its compact design, the engine fits well into the engine bay of compact models, facilitating installation and subsequent maintenance.

This type of petrol unit is a popular choice for drivers expecting reasonable fuel consumption while maintaining adequate dynamics. The 86 HP version represents a compromise between economy and sufficient performance for daily driving, making it an attractive base for repairing fleet and private vehicles.

Condition, mileage, and workshop suitability

The offered engine comes from the secondary market, which allows for a favorable price-to-repair-potential ratio. The documented mileage of the unit enables the workshop to reliably assess the potential for further operation and plan any necessary service activities before installation. This type of engine is particularly useful in cases of severe damage to the existing unit, such as seizing or a cracked block.

For professional workshops and experienced mechanics, the bare engine provides a convenient starting point for a complete powertrain rebuild: you can use new or verified accessories, select appropriate seals, and perform a check of key components before installation in the vehicle. This solution increases the predictability of the final repair result.

Benefits of using the original CJZB engine

Choosing the original CJZB engine for the VW Golf Mk7, Skoda Octavia, or Seat Leon 5F allows you to maintain the factory operating parameters of the powertrain. Proper fitment to stock mounts, the transmission system, and vehicle electronics reduces the risk of compatibility issues and shortens installation time. This is particularly important in the case of modern TSI designs, where the precision of mechanical and control tuning is crucial for durability.

The CJZB petrol engine performs well in daily use, and using the original engine facilitates stable idling, correct throttle response, and predictable fuel consumption. For workshops, this means fewer complaints and greater customer satisfaction after the repair is completed.

Volkswagen engines – expansion and component selection

If you are planning a comprehensive repair or upgrade of the engine area in your Volkswagen and need other elements from the same group, such as additional engine blocks or cylinder heads, check out the available parts in the Volkswagen Engines category.

Technical knowledge and selection of used units

When choosing a used engine, it is worth knowing the typical problems of modern units and consciously assessing the cost-effectiveness of the repair. Comparative material regarding other brands and designs, such as faulty BMW E90 engines and their impact on operating costs, can be helpful, as it shows how important it is to properly identify the weak points of a given unit before purchasing.

If you want to better plan the entire repair process – from selecting the engine block to accessories and small mounting elements – it is worth reading a guide on One-Stop-Shop purchases, such as comprehensive supply of used car parts from the engine to the smallest clip. This makes it easier to collect all the necessary components in one place and reduce vehicle downtime.