VW Transporter T5 Oil Filler Neck Cap Pipe Cover 1.9 TDI 038115301A

VW Transporter T5 Oil Filler Neck Cap Pipe Cover 1.9 TDI is an original component from the Oil filters group, designed to tightly seal the oil filler opening in 1.9 TDI diesel engines. It ensures a stable seal for the engine cover, limits evaporation and oil leaks, and thus supports the proper operation of the lubrication system.

Specifications and technical data

• SKU: 038115301A
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 038115301A
• Substitutable numbers: 038115301A, 038 115 301 A
• Part type: Oil Filter
• Category: Oil Filters

Purpose and technical function

The oil filler cap in Volkswagen T5 models with the 1.9 TDI engine is responsible for maintaining the correct pressure and tightness in the upper part of the lubrication system. A properly selected component minimizes the risk of engine compartment contamination with oil and also limits the ingress of impurities into the engine unit during operation. The original Volkswagen solution guarantees a perfect fit to the thread and seat in the valve cover, which translates into trouble-free installation and predictable behavior during daily engine operation.

Construction and fit to the lubrication system

The design of the cap is engineered for resistance to oil operating temperatures and variable working conditions in the engine compartment. The materials used are selected to maintain dimensional stability, seal flexibility, and resistance to contact with engine oil over a long period of use. Thanks to its factory origin, the component retains the correct gasket profile and shape of the working part, which facilitates tightening and unscrewing during service maintenance without the need for excessive force. This is particularly important during regular oil changes when the cap is frequently removed.

Benefits of using an original oil cap

Choosing an original oil filler cap for the Volkswagen T5 1.9 TDI allows you to maintain consistency with the factory lubrication system specification. In practice, this means:

• secure tightness of the connection in the engine cover,
• reduced risk of leaks and contamination in the engine compartment,
• proper cooperation with the thread and seat in the cylinder head,
• easy installation and removal during oil service. The component from the Oil filters group is an essential addition to the entire lubrication system – a tight cap supports stable oil operating conditions, which is significant for the durability of the engine unit.

Condition and service application

The offered cap is a used item, which allows for an economical replacement of a worn or damaged cap while maintaining the manufacturer's original specification. This is a practical solution in situations where the existing cap has a damaged gasket, housing cracks, or signs of excessive thread wear. Before installation, it is recommended to perform a standard inspection of the seat in the valve cover and the contact surface to ensure proper seating and tightness after tightening.

Related lubrication and cooling system components

A functional oil filler cap is just one of the elements affecting engine condition. It is worth monitoring the oil level, oil filter, and the overall tightness of the lubrication system in parallel. For a better understanding of the impact of operating temperature and lubrication on engine lifespan, an article describing the relationship between overheating and engine durability may be helpful – check the material: Engine cooling system – overheating, repair, and used radiators. If you are planning a comprehensive repair or upgrade of the engine area in your Volkswagen and need other components from the same group, such as oil filter cartridges, filter housings, or seals related to the lubrication system, check the available parts in the Volkswagen Oil filters category.