Dip Stick Mercedes W169 W245 Engine Oil Pan Guide Pipe A6400180640

Dip Stick Mercedes W169 W245 Engine Oil Pan Guide Pipe is a precision component of the lubrication system, specifically designed for the power units used in the A-Class and B-Class. The properly selected length and shape of the dipstick allow for a quick, clear, and reliable check of the oil level, which translates into safe engine operation. A used, original component of this class is a sensible choice for drivers looking for a proven service solution instead of random replacements.

Specifications and technical data

• SKU: A6400180640
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6400180640
• Substitutable numbers: A6400180640, A 640 018 06 40
• Category: Hoses, Lines & Pipes

Purpose and function in the lubrication system

The oil dipstick in Mercedes W169 and W245 models is responsible for monitoring the amount of lubricant in the oil pan. A correct oil level reading is crucial for protecting the engine against seizing, overheating, and accelerated wear of mating components.

A properly profiled working tip allows for an unambiguous reading of the minimum and maximum range, and the routing of the dipstick in the engine channel ensures a repeatable position during every check. Thanks to this, the user can quickly assess whether it is necessary to top up the oil or verify potential leaks.

Construction and fitment for Mercedes W169 / W245

The dipstick has been designed with the specific geometry of the power units used in the A-Class (W169) and B-Class (W245) in mind. This includes:

• appropriate working length matched to the depth of the oil pan,
• routing in the engine channel ensuring stable positioning,
• clear oil level markings, facilitating the interpretation of the measurement result.

Such structural fitment ensures that the dipstick operates under predictable conditions, and the oil level reading remains repeatable and consistent with the vehicle manufacturer's specifications.

Benefits of using an original dipstick

Using an original oil dipstick in Mercedes A-Class and B-Class cars brings a number of practical operational benefits:

• Reliable measurement – the correct scale and geometry of the working tip minimize the risk of an incorrect reading.
• Stable seating in the guide – the dipstick does not move accidentally, which limits the possibility of mechanical damage in the channel.
• Compatibility with the factory lubrication system – no need for modifications or length adjustments.
• Diagnostic utility – regular oil level checks make it easier to detect excessive consumption or leaks at an early stage.

For users who perform periodic maintenance themselves, such an element is a convenient and practical tool for ongoing assessment of the engine's condition.

Application in service practice

During service maintenance, the oil dipstick is used both during routine inspections and for more advanced work related to the lubrication system. It is useful, among other things, for:

• verifying the oil level after changing the lubricant,
• checking oil consumption between services,
• assessing potential problems with seals or excessive oil burning.

Maintaining a functional dipstick is especially important in vehicles used intensively or on long routes, where a stable oil level has a direct impact on engine durability.

Condition and origin of the component

The offered oil dipstick is an element from the Lines, hoses and pipes group, sourced from the dismantling of a Mercedes vehicle. A used component of this type allows for an economical replacement of a worn or damaged dipstick while maintaining compliance with factory design assumptions. This solution is particularly beneficial for maintenance repairs where functionality and fitment to a specific model are what count.

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 lines, oil hoses, or pipes guiding working media, check the available parts in the Mercedes lines, hoses and pipes category.

For drivers operating diesel units, a guide on fuel system diagnostics may also be helpful. To better understand the symptoms related to diesel engine operation, it is worth reading the article Diesel injector faults – how to recognize them and the risks of neglecting them, which discusses typical symptoms and possible consequences of service neglect.