Mercedes W204 Petrol OM156 Dipstick Oil Level Measuring Tube A1560100666

Mercedes W204 Petrol OM156 Dipstick Oil Level Measuring Tube is a precision component of the lubrication system, designed for engines from the OM156 family. It is responsible for accurate oil level monitoring, which has a direct impact on the safety of the power unit and the stable operation of the petrol engine. Thanks to the use of the original Mercedes design, this component ensures secure dipstick guidance and repeatable oil level readings.

Specifications and technical data

• SKU: rhd-A1560100666
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1560100666
• Substitutable numbers: A1560101772, A 156 010 17 72, A1560100666, A 156 010 06 66
• Fuel type: Petrol
• Category: Oil Drain Plugs, Filler Caps & Dipsticks

Purpose and function in the OM156 petrol engine

The described measuring tube is part of the Oil drain and filler plugs and dipsticks group, responsible for the maintenance and monitoring of the lubrication system. In the OM156 petrol engine, it acts as a guide for the dipstick, enabling:

• stable insertion of the dipstick into the oil pan,
• repeatable oil level readings during every service check,
• reduced risk of contamination and mechanical damage to the dipstick itself.

Thanks to its dedicated fitment for the OM156 unit, the geometry of the tube is consistent with the manufacturer's factory specifications, which translates into measurement reliability and correct interpretation of the MIN/MAX ranges on the dipstick.

Benefits of using the original dipstick tube

Using the original measuring tube in a Mercedes W204 with a petrol engine provides a number of practical operational benefits:

• Precise oil level reading – the correct length and shape of the guide minimize measurement errors resulting from improper dipstick immersion.
• Safe service handling – a rigid, well-fitted guide facilitates quick oil level checks, even during frequent inspections in workshop conditions.
• Consistency with the factory lubrication system – maintaining the original flow path and oil level supports engine durability, especially in petrol units operating at higher RPMs.
• Reduced risk of leaks – a properly seated dipstick tube reduces the chance of oil vapors escaping into unwanted areas of the engine bay.

Characteristics of the used component

The offered dipstick tube is a used component, sourced from dismantling. This type of part, provided it maintains structural integrity and is free from deformation, retains full functionality in terms of guiding the dipstick and maintaining correct measurement geometry. In practice, this means the possibility of an economical replacement of a damaged or corroded tube while maintaining operating parameters consistent with the factory solution.

Choosing a used OEM component is particularly beneficial for older Mercedes W204 models, where both technical compatibility and reasonable vehicle maintenance costs are important.

Integration with lubrication and cooling system maintenance

Correct oil level measurement is closely linked to engine operating temperature and the efficiency of the cooling system. An oil level that is too low at high temperatures can accelerate engine wear, which is why regular checks using a functional dipstick tube have a preventive significance. In the context of engine protection, it is worth reading the material discussing the impact of operating temperature on unit durability – this is described in detail in the article Engine cooling system – overheating, repair and used radiators.

Service expansion within the Mercedes oil system

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other components from the same group, such as oil drain plugs, oil filler caps, or additional dipsticks, check the available parts in the Mercedes oil drain and filler plugs and dipsticks category.

Summary

Mercedes W204 Petrol OM156 Dipstick Oil Level Measuring Tube is a technically matched lubrication system component that enables reliable oil quantity monitoring in the power unit. A used, original component allows for the restoration of proper engine serviceability while maintaining a favorable cost-to-functionality ratio. It is a practical solution for users and workshops that prioritize compliance with the factory design and stable operating conditions of the petrol engine.