Mercedes W639 Diesel Dipstick Oil Pipe Engine Guide Tube A6510107622

Mercedes W639 Diesel Dipstick Oil Pipe Engine Guide Tube is a precision lubrication system component, designed specifically for diesel engines. It is responsible for stable dipstick guidance and convenient access for oil level checks, which has a direct impact on the safe operation of the power unit. This used, original component ensures factory-fit and reliable performance with the diesel engine.

Specifications and technical data

• SKU: A6510107622
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6510107622
• Substitutable numbers: A6510107622, A 651 010 76 22
• Fuel type: Diesel
• Category: Oil Drain Plugs, Filler Caps & Dipsticks

Purpose and function in a diesel engine

The oil dipstick guide tube in a Mercedes W639 with a diesel engine is responsible for the correct positioning of the dipstick in the oil pan and a tight passage through the engine block. This ensures that oil level readings are repeatable, and maintenance is quick and predictable. This element is particularly important in diesel units, where stable lubrication affects the durability of the turbocharger, bearings, and timing system.

Benefits of using an original guide tube

Using an original oil dipstick guide tube in a Mercedes W639 allows for maintaining the factory dipstick guidance geometry and proper mounting rigidity. In practice, this means:

• easy access for checking the oil level in the engine bay,
• correct seating of the dipstick without the risk of jamming,
• reduced risk of leaks at the point of passage through the block,
• compatibility with diesel engine accessories in the given model.

For workshops and fleet users, this is a practical service solution that facilitates regular inspections and oil condition diagnostics.

Component condition and service application

The offered oil dipstick guide tube comes from the Oil drain and filler plugs and dipsticks category, which means it is part of the same group of components responsible for engine oil maintenance. A used OEM element is a good choice for post-accident repairs, replacing a damaged tube (e.g., after breaking or deformation), and when completing missing parts in a diesel engine.

Replacing the tube is a typical service operation performed during:

• mechanical damage resulting from a collision or improper disassembly,
• corrosion or wear of the mounts,
• problems with the correct seating of the oil dipstick.

Technical support and part selection

For the correct selection of an oil dipstick guide tube for a specific version of the Mercedes W639 with a diesel engine, it is crucial to compare OEM data and interchangeable numbers in the technical specification. This allows avoiding assembly problems and guarantees that the element will work with the existing lubrication system. In case of doubt, it is worth verifying compatibility by part number or the vehicle's VIN.

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 oil drain plugs, filler caps, or dipsticks, check the available parts in the Mercedes oil drain and filler plugs and dipsticks category.

Engine operation and service knowledge

Correct oil level reading is one of the basic conditions for the trouble-free operation of a diesel engine. An incorrect amount of oil – both too low and too high – can lead to overheating, a drop in lubrication pressure, or oil foaming. Therefore, a functional dipstick guide tube, tight plugs, and regular oil condition checks are an important element of service prevention.

To better understand how the lubrication and cooling system affects the lifespan of the power unit, it is worth reading the guide: Engine cooling system – overheating, repair, and used radiators. Additionally, when purchasing used oil system components online, a practical guide may be helpful: Safe purchase of used car parts online – a step-by-step guide.