The reduced size of the nearside wing mirror on the W124 model may be attributed to design considerations (opinion).

[Alvinthebeast]

I have had my E200 vehicle for a duration of 27 years. During my investigation on the online platform YouTube, I encountered remarks pertaining to the smaller mirror located on the nearside of the vehicle. This prompted me to recognise that I have been using the nearside wing mirror as a parking assistance tool while manoeuvring the vehicle into my garage. If I observe the area next to the back of the vehicle using the wing mirror, and ensure that the garage door post is not inside my field of vision, it is very likely that I will avoid causing any harm to the outside of the vehicle.
Furthermore, due to the placement of the wing mirror on the nearside, the probability of it colliding with adjacent wing mirrors in congested traffic scenarios or being struck by people when parked in close proximity to the pavement is reduced.
It is worth mentioning that other manufacturers have recently included the installation of retractable wing mirrors, indicating that Mercedes-Benz may have had a higher level of technological advancement than first perceived.

[STAR89colin]

Indeed, that is precisely the case. The driver's side mirror is designed with increased width to enhance visibility of cars passing from the right rear, while the passenger side mirror offers a higher and more square viewpoint to aid in tasks related to the side of the road, such as manoeuvring near curbs.

[Sarah_Jane1980]

Each day is an opportunity for learning. I have often pondered the same topic when examining vintage Mercedes-Benz vehicles.

[jane_doe2023]

The orientation of the VW T4 Transporter differed between the driver's side, which was in a landscape configuration, and the nearside, which was in a portrait configuration.

[David_Smith2003]

One notable aspect that I really like about Mercedes vehicles, particularly older models, is their meticulous attention to detail and thoughtful design considerations.
Similar to the phenomenon seen in the window switch lighting, where it ceases to function when the rear windows are off, or the diminutive shade that descends in the middle of the screen on a w124 model.
Both little and major aspects contribute to the overall situation.

[Thomas_Green78]

The prevalence of larger passenger mirrors on automobiles is more widespread than often perceived. Upon closer examination, one will come to appreciate the substantial number of vehicles equipped with such mirrors. In addition to the aforementioned reasons, it is worth noting that the mirror on the passenger side of the vehicle is often positioned at a distance around four to five times greater than that of the driver's side mirror. Consequently, it is logical for the passenger side mirror to exhibit a larger size. This phenomenon was seen in a significant number of Volkswagen and Audi vehicles manufactured throughout the 1980s and 1990s, as reported during my tenure in sales.

[STAR89colin]

A notable feature seen only in 124 coupés and cabriolets is the presence of a small window inside the passenger door pocket. The conversion for right-hand drive (RHD) cars was not implemented. However, the service book is designed to serve as a visual reminder for the next car service, visible to left-hand drive (LHD) vehicle drivers upon opening the driver's door. I took this photograph of my previous coupé some years ago. Therefore, if you have previously seen this same image, it belongs to me.

[MercedesFan2022]

I recall seeing Wayne Carini, a prominent figure in the classic car community (CCC), as he examined a Mercedes-Benz saloon from the 1980s. During his analysis, Carini elucidated to the audience that the absence of a passenger door mirror in the aforementioned vehicle should not be seen as a defect, since it was an elective feature in the United States. The individual who placed the order for this specific car simply did not choose that particular option.