Mercedes-Benz E-Class A207 OM642 Engine Dipstick Oil Guide Tube A6420105514

Mercedes-Benz E-Class A207 OM642 Engine Dipstick Oil Guide Tube is a precision component of the lubrication system, classified under the Hoses, lines and pipes group, designed for OM642 diesel engines in Mercedes vehicles. It enables convenient, controlled, and repeatable oil level verification, which is crucial for the durability of the power unit. The used OEM component ensures factory fitment and compatibility with the original oil system.

Specifications and technical data

• SKU: A6420105514
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6420105514
• Substitutable numbers: A6420105514, A 642 010 55 14, EM
• Category: Hoses, Lines & Pipes

Purpose and function of the OM642 oil dipstick guide tube

The oil dipstick guide tube in the OM642 engine is responsible for guiding and properly seating the dipstick in the oil channel. This ensures that the oil level reading is stable, repeatable, and resistant to interference caused by engine vibrations. This component works with the lubrication system, which operates under significant thermal and mechanical loads in OM642 engines, making proper oil level monitoring particularly important.

As a part of the Hoses, lines and pipes group, the guide tube contributes to the flow path of the working medium (engine oil) and ensures tightness in the dipstick guidance area. Its proper design and internal diameter reduce the risk of oil aeration and improper sediment buildup in the measurement channel.

Benefits of using an original guide tube in the Mercedes OM642

Using an original oil dipstick guide tube in the OM642 engine translates into a number of practical operational benefits:

• factory fitment to the engine block and accessories, without the need for modifications,
• stable dipstick guidance, which facilitates quick and clear oil level readings,
• maintaining tightness in the measurement channel area, reducing the risk of leaks,
• maintaining compliance with the lubrication system design specified by the manufacturer.

For OM642 units that often operate in demanding conditions (high mileage, towing loads, highway driving), proper oil level monitoring is one of the key elements of preventive maintenance. A functional oil dipstick guide tube facilitates maintaining the correct service regime and reduces the risk of the engine running with an insufficient level of lubricant.

Assembly and operational characteristics

The OM642 oil dipstick guide tube has been designed as a component that works with the factory Mercedes lubrication system, which facilitates installation in the location provided by the manufacturer. The used component allows for economical repair or replacement of a missing part while maintaining the original geometry and mounting points. This allows for the restoration of full oil level monitoring functionality without interfering with the engine construction.

In workshop practice, the guide tube is replaced, among other things, after mechanical damage, disassembly of accessories, or in situations where the original element has been lost. Using an original solution from the Hoses, lines and pipes group minimizes the risk of improper dipstick guidance, which could result in incorrect oil level readings and unnecessary service interventions.

Application in Mercedes service and diagnostics

The oil dipstick guide tube in the OM642 engine is an important element both in daily operation and during service procedures. A properly functioning oil level measurement system supports:

• regular oil level checks between service intervals,
• verification of oil consumption in higher-mileage engines,
• diagnostics of potential lubrication system leaks,
• checks after oil and filter changes.

For workshops specializing in Mercedes service, the use of original components in the lubrication system area is important from the point of view of service procedure repeatability and reducing complaints related to incorrect oil level readings.

System expansion – other elements from the same group

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 flexible oil lines, technical hoses, or rigid pipes guiding the working medium, check out the available parts in the Mercedes Hoses, lines and pipes category.

Additional information and technical knowledge

If you are interested in a broader context of using dismantled components in the automotive industry, including tuning and modernization projects, it is worth familiarizing yourself with practical tips regarding the selection and installation of such subassemblies. Useful information can be found in the article Emotions and design – visual and mechanical tuning of a Seat using dismantled components, which discusses how to consciously use used OEM elements in advanced projects.