Mercedes W164 OM642 Oil Level Dipstick Dip Stick Tube Hole Line Pipe A6420101666

Mercedes W164 OM642 Oil Level Dipstick Dip Stick Tube Hole Line Pipe is a precision inspection component designed for diesel engines, enabling reliable monitoring of the oil level in the engine. By using this dipstick in the OM642 diesel engine, you can easily ensure safe lubrication and stable operation of the power unit. It is a practical service solution for users who want real control over the oil level, regardless of electronic readings.

Specifications and technical data

• SKU: A6420101666
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6420101666
• Substitutable numbers: A6420101666, A 642 010 16 66
• Fuel type: Diesel
• Category: Oil Drain Plugs, Filler Caps & Dipsticks

Purpose and function in a diesel engine

The engine oil dipstick in models with the OM642 engine plays a key role in the daily operation of a diesel unit. It allows for a quick, manual check of the oil quantity, which is particularly important in diesel engines where stable pressure and the correct amount of lubricant affect the durability of the turbocharger, bearings, and timing system. Using a dedicated dipstick allows for precise oil level control without having to rely solely on electronic systems.

Design and fitment for Mercedes W164

The dipstick has been designed to work with the OM642 engine installed in the Mercedes W164 class, which ensures the correct working length and appropriate level markings. This makes the reading clear, and the user can unambiguously determine whether the oil level is within the safe operating range. The item belongs to the Oil drain and filler plugs and dipsticks group, meaning it is part of the engine oil service system responsible for monitoring and maintaining the lubricant.

Benefits of using an original dipstick

Choosing an original oil dipstick for a Mercedes with a diesel engine translates into a number of practical operational benefits:

• reliable oil level reading thanks to the fitment for a specific power unit,
• easier diagnostics of potential oil consumption issues,
• the ability to perform a quick check after every oil change or top-up,
• reduced risk of driving with an insufficient amount of oil, which affects engine longevity.

Such a solution is particularly useful in vehicles used intensively, where regular oil level checks constitute an element of preventive maintenance and help maintain stable operating conditions for the diesel unit.

Used condition and practical aspects

The offered dipstick comes from the category of used parts, which allows for an economical restoration of full functionality to the oil monitoring system in your Mercedes. For many users, this is a reasonable compromise between cost and functionality – especially in the case of components that do not operate under high mechanical loads and are primarily responsible for service monitoring. During installation, it is recommended to pay attention to the correct guidance of the dipstick in the tube and to perform the measurement according to the manufacturer's procedure (engine warmed up, vehicle on a level surface, waiting the appropriate time after switching off).

Related components and service knowledge

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

For a better understanding of the impact of proper lubrication and operating temperature on the durability of the power unit, it is worth reading the guide on the cooling system and oil coolers – you will find it in the article Engine cooling system – overheating, repair, and used radiators, where the relationship between operating temperature and engine condition is discussed, among other things.

If you want to better utilize the potential of the aftermarket and consciously choose used components, the guide describing the principles of safe purchasing may be helpful – check the material Used parts – your guide to the best offers in an automotive store to effectively plan your car's service.