Mercedes ML W163 Dunlop Spare Wheel Steel Tyre R18 155/90 A1634011102

Mercedes ML W163 Dunlop Spare Wheel Steel Tyre R18 155/90 is a practical, factory-original emergency solution designed for Mercedes SUV models from the W163 series. The R18 steel construction with a 155/90 profile tyre provides reliable support in emergency situations when the primary wheel is damaged. It is a functional piece of equipment that enhances vehicle safety and allows you to continue driving to your destination or a service center.

Specifications and technical data

• SKU: A1634011102
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2044000302
• Substitutable numbers: A1634011102, A 163 401 11 02
• Number of holes: 5
• Category: Other Wheel & Tyre Parts

Technical characteristics of the spare wheel

The presented spare wheel is an R18 steel rim with a narrow "space saver" 155/90 tyre, designed as a temporary solution. The five-hole mounting pattern allows for stable seating of the rim on the hub, in accordance with the standards used in Mercedes W163 vehicles. This type of wheel is optimized for weight and dimensions to fit easily into the factory trunk compartment while maintaining appropriate rigidity and durability.

Purpose and function in the vehicle

The Mercedes ML W163 Dunlop Spare Wheel Steel Tyre R18 155/90 serves as an emergency component intended for short-term use after a puncture or damage to the main tyre. The narrow tyre reduces the space required in the trunk, and the steel rim is resistant to typical operational loads. This type of solution allows for:

• safe exit from a highway or expressway after a tyre failure,
• driving to a workshop or tyre service without the need for towing,
• maintaining vehicle mobility on the road, even with a fully loaded cabin.

Due to its design, this type of wheel should be used in accordance with the manufacturer's recommendations – as a temporary solution, with speed and distance limitations.

Benefits of using an original Mercedes spare wheel

Selecting a spare wheel dedicated to the W163 series ensures proper mounting geometry and compatibility with the braking system and suspension. Proper rim fitment reduces the risk of vibrations, uneven bearing load, or improper contact with the hub. In practice, this means:

• easier installation in roadside conditions,
• correct vehicle handling after installing the spare wheel,
• compliance with Mercedes' factory design specifications.

The steel rim is also less sensitive to localized mechanical damage than many alloy wheels, which is significant when used in an emergency on poor road surfaces.

Condition and origin of the item

The spare wheel comes from dismantling and is offered as a used original Mercedes component. Such parts are popular among users who expect factory fitment and predictable behavior while driving, while simultaneously optimizing costs compared to new parts. A used spare wheel will work well both as a supplement to missing equipment and as a replacement for a damaged or corroded space-saver wheel.

Selection and compatibility in practice

When choosing a spare wheel for a Mercedes W163, it is crucial to pay attention to the rim type, size, and the number of mounting holes. The five-hole pattern used in this model is characteristic of many Mercedes designs, however, it is always worth verifying compatibility with the specific vehicle version. A properly selected spare wheel:

• does not interfere with brake calipers and discs,
• provides adequate clearance and does not rub against suspension components,
• fits the factory trunk compartment intended for a space-saver wheel.

If you are planning a comprehensive repair or upgrade of the running gear in your Mercedes and need other items from the same group, such as additional spare wheels, steel rims, or emergency wheels, check the available parts in the Other Mercedes category.

Technical support and additional knowledge

For drivers interested in comparing technical solutions used in different brands and sports versions, including running gear and braking systems, an article describing design differences in sports models may be helpful. More information can be found in the material: Audi RS vs other models – what is hidden under the hood and chassis?.

Summary

Mercedes ML W163 Dunlop Spare Wheel Steel Tyre R18 155/90 is a functional, original emergency solution designed for a safe drive after the primary wheel is damaged. The steel rim, matched size, and five-hole mounting pattern ensure compatibility with the vehicle's construction, and the used nature of the product allows for cost reduction while maintaining the factory standard of fitment. It is a practical choice for users who want to have a reliable and proven space-saver wheel in their Mercedes W163.