1952 Mercedes-Benz Tire Fitment Guide

1952 Mercedes-Benz vehicles use six sizes across three model lines: the 170 uses 550-16, 175R15, and 640-15; the 220 uses 175R15 and 640-15; and the 300 uses 205R15, 710-15, 185R15, and 670-15. The 170 is the outlier because it appears with both 16-inch and 15-inch fitments, while the 220 and 300 stay on 15-inch tires. Rim width recommendations vary by size and by product, from 3.25-4.00 inches on some 550-16 applications up to 5.50-6.00 inches on certain 205R15 offerings.

That means year and make alone are not enough for a correct selection on a 1952 Mercedes-Benz. A 170 owner should verify whether the car currently carries 15-inch or 16-inch wheels, and a 300 owner should decide among its model-specific bias-ply and radial sizes rather than assuming any 15-inch tire in the catalog is interchangeable. Once the model and wheel diameter are confirmed, the next step is narrowing the choice by construction type and the sidewall appearance you want.

A 640-15 tire on a 1952 Mercedes-Benz is a numeric bias-ply size. The 6.40 figure is the nominal section width in inches, and the 15 is the wheel diameter in inches. Within this year and make, 640-15 appears on the 170 and 220. Products in that size are bias-ply only, with whitewall treatments ranging from narrow to wide depending on the brand and series.

That code matters because it identifies both the construction era and the wheel it belongs on. A buyer looking at a 640-15 should expect a traditional bias-ply tire and should match it to a 15-inch wheel, not a 16-inch setup from another version of the 170. It is also worth checking the individual tire's recommended rim width before final selection, since some 640-15 products are suited to 4.00-4.50-inch rims while others are intended for 4.50-5.00-inch rims.

A 175R15 tire on a 1952 Mercedes-Benz is an older Euro-metric radial size. The 175 is the section width in millimeters, the R indicates radial construction, and the 15 is the wheel diameter in inches. In this model year, 175R15 is used on the Mercedes-Benz 170 and 220. It serves as a radial alternative to the 15-inch numeric bias-ply fitment used on those cars.

That makes 175R15 especially relevant for owners who want to keep the correct 15-inch wheel diameter while moving away from a traditional crossply feel. The code does not mean it belongs on every 1952 Mercedes-Benz, though, because the 300 uses different sizes and the 170 can also appear with a 16-inch fitment. If your car is a 170 or 220 on 15-inch wheels, 175R15 is the metric radial size to evaluate against the bias-ply 640-15 choice.

For a 1952 Mercedes-Benz 170 or 220 on 15-inch wheels, the choice between 640-15 and 175R15 is mainly a choice between bias-ply and radial construction. The 640-15 is the traditional numeric bias-ply size, while 175R15 is the radial alternative in a period-style Euro-metric format. Both belong to the same pair of model lines, but they represent different driving character and restoration priorities rather than a simple wide-versus-narrow comparison.

Owners aiming for an authentic early-1950s presentation often favor the 640-15 because it preserves the original-style construction and supports period-correct whitewall options. Owners who plan to drive their 170 or 220 more regularly often start with 175R15 because radial construction changes the on-road feel in a way many modern drivers prefer. The key is to confirm that the car is on the proper 15-inch wheel and to decide whether authenticity or a radial driving experience is more important for your use.

1952 Mercedes-Benz tires are available in several sidewall treatments depending on size: blackwall, wide whitewall, narrow whitewall, and even redline on certain 185R15 radial products. The 550-16 size offers blackwall and wide whitewall, 640-15 offers narrow and wide whitewall, 205R15 appears in blackwall and wide whitewall, 710-15 in blackwall and wide whitewall, 185R15 in redline, narrow whitewall, and blackwall, and 670-15 in blackwall and wide whitewall.

For a 1952 Mercedes-Benz, sidewall choice has as much to do with presentation as fitment. Blackwalls usually deliver the most restrained look and often suit European sedan styling well, while whitewalls create a more formal, export-market luxury appearance. Redline is a specialty look available only in one 300 radial size and is more of a styling choice than a factory-authentic default for an early-1950s Mercedes sedan. If originality matters, match the sidewall style to your car's market history and restoration goal.

Several brands cover 1952 Mercedes-Benz tire sizes, depending on the size in question. The 550-16 size is offered by Excelsior, Avon, BFGoodrich, and Firestone; 640-15 by BFGoodrich and Firestone; 205R15 by Phoenix and Avon; 710-15 by BFGoodrich and Firestone; 185R15 by Coker Classic and Michelin; and 670-15 by Firestone, US Royal, Coker Classic, and Universal Vintage Tire. No single brand spans every size used across the full 170, 220, and 300 lineup.

That brand spread matters because your available choices narrow quickly once you identify the exact model and size. A 300 owner, for example, can compare both American-style bias-ply brands and European-style radial offerings, while a 170 owner on 550-16 has a different set of period-oriented options. It is usually more helpful to start with the correct size and construction for your car, then compare brands within that size by sidewall style, speed rating where applicable, and rim-width compatibility.

Rim width requirements on 1952 Mercedes-Benz tires vary by size and, in some cases, by product within the same size. The listed ranges include 3.25-4.00 inches for 550-16, 4.00-4.50 or 4.50-5.00 inches for 640-15, 5.50-6.00 inches for 205R15, 5.00-5.50 inches for 710-15, about 4.5-6.5 inches for 185R15 depending on the tire, and 4.50-5.00 or 5.00-6.00 inches for 670-15 depending on brand and construction.

Those ranges show why wheel confirmation matters before ordering, especially on cars that may have been restored, modified, or converted to a different period-correct size over the years. The safest approach is to measure the actual wheel and match it against the specific tire you are considering, not just the year and model. A tire that fits the right diameter wheel can still be a poor match if the wheel falls outside the product's approved width range.

Tube status on 1952 Mercedes-Benz tires depends on the exact product and size. The 185R15 Michelin radial products are explicitly marked TL, meaning tubeless, while many of the bias-ply sizes and some other listings do not carry a tube marking in the size description. That makes tube requirements a product-specific check rather than a year-wide rule. A 1952 Mercedes-Benz owner should treat tube use as something to confirm with the chosen tire and wheel combination.

That is especially important on older wheels, where rim design and condition can matter just as much as the tire itself. Some vintage wheels were originally intended for tube-type service, and others may have been restored in ways that affect whether a tubeless tire is practical. Before mounting a new set, verify the sidewall marking on the specific tire and make sure the wheel condition, valve hardware, and intended setup all agree with that construction.

A stored 1952 Mercedes-Benz should be kept in a cool, dry, dark environment away from direct sunlight, heaters, welders, compressors, and other ozone-producing equipment. Clean tires and proper inflation help preserve sidewalls during long periods of inactivity. Bias-ply tires are more prone to temporary flat-spotting when parked for extended stretches, while any vintage-style tire can suffer cosmetic aging if exposed to heat and ultraviolet light for months at a time.

If the car will sit for a season, roll it periodically or use stands in a way that supports the vehicle safely without stressing the suspension. Avoid parking on damp soil or surfaces that trap moisture around the tread. A collector Mercedes that lives indoors and is moved occasionally will usually keep its tires looking and behaving better than one that spends long periods motionless in a bright or damp garage.

Tires on a 1952 Mercedes-Benz should be judged more by age and condition than by mileage, because collector cars often accumulate very few miles while the rubber continues to age. A good rule is to inspect them closely once they reach the five- to seven-year range and to treat about ten years as the point where replacement deserves serious consideration regardless of tread depth. The DOT date code on the tire sidewall is the quickest way to establish age.

That age-based approach matters because a lightly driven 170, 220, or 300 can still be riding on old rubber that looks usable at a glance. Sidewall cracking, hardening, loss of flexibility, and long-term air retention issues often tell a more important story than tread wear on vintage cars. If the date code shows the tires are aging out, replacement is usually the prudent move even if the car has mostly lived in storage.

Tires on a 1952 Mercedes-Benz should be inspected before every drive, and again more carefully before any extended outing. Look for cracking, cuts, bulges, uneven tread wear, and signs that the tire is losing pressure between uses. A low-use collector car can develop age-related issues slowly and then reveal them suddenly when asked to run at speed for a longer distance.

The inspection should include the valve stems and, where tube-type service is being used, the condition of the tube-related hardware as well. It is also smart to check the spare, because many vintage cars carry a spare that is older than the mounted set and has not been evaluated in years. Catching a sidewall issue or pressure problem in the garage is far easier than discovering it after the car is loaded for a tour.

A 1952 Mercedes-Benz 170 would originally have been associated with bias-ply construction, because radial adoption was still emerging in this era and crossply fitments remained standard across much of the market. Within the sizes used on the 170 here, the original-style choices are the numeric bias-ply sizes 550-16 and 640-15, while 175R15 represents a radial alternative on a 15-inch wheel. The correct original fitment can still vary by body style, market, and wheel setup.

For a restoration, the most accurate path is to confirm the exact model variant and wheel diameter already on the car, then compare that against factory literature or Mercedes marque-club resources. That is especially useful with the 170 because it appears with both 16-inch and 15-inch fitments in this year. If the car is being judged for authenticity, the construction type and sidewall appearance will matter at least as much as the nominal size.

Correct tire fitment matters on a shown 1952 Mercedes-Benz because judges and knowledgeable enthusiasts often notice size, construction, and sidewall treatment immediately. A bias-ply tire in the proper numeric size generally supports a more authentic early-1950s presentation, while a modern radial can stand out if the car is being evaluated for originality. Sidewall details matter too, since blackwalls, narrow whitewalls, and wide whitewalls create very different visual impressions.

That does not mean every show requires the same answer. Some events reward usability and sympathetic restoration, while strict concours standards may place more emphasis on original-style construction and era-correct appearance. The smart approach is to match the tire to the level of authenticity your event expects, then confirm those standards with the relevant Mercedes-Benz club or judging guide. Tires are one of the fastest ways to make a restored car look exactly right or obviously off-period.

On the 1952 Mercedes-Benz 300, both 185R15 and 205R15 are radial 15-inch sizes, but they differ in section width, sidewall offerings, speed ratings, and approved rim ranges. The 185R15 options include Coker Classic and Michelin products with redline, narrow whitewall, and blackwall styles, with H-rated versions to 130 mph and V-rated versions to 149 mph; listed rim-width ranges run roughly from 4.5 to 6.5 inches depending on the tire. The 205R15 options include Phoenix and Avon products in wide whitewall and blackwall, with the Avon example carrying a V rating to 149 mph and a listed 5.50-6.00-inch rim range on the Phoenix tire.

That means the decision is not simply about choosing a radial for the 300; it is also about which visual treatment and wheel width you are trying to accommodate. An owner who wants the broadest sidewall-style selection may start with 185R15, while someone comparing a blackwall European-style radial to a wide-whitewall radial might look closely at 205R15. Since both are model-specific 300 fitments, the wheel already on the car should guide the choice before appearance or speed rating does.

1952 Mercedes-Benz tires can be suitable for highway use when they are the correct size, in sound condition, and operated within the capability of their construction and speed rating. The radial sizes shown here include products with H and V ratings, which correspond to 130 mph and 149 mph, while many bias-ply products do not list a modern speed letter in the size description. On an early-1950s Mercedes, the car's own braking, steering, suspension, and age-related mechanical condition are often more important real-world limits than the tire alone.

For normal touring speeds, a well-maintained set on a properly sorted 170, 220, or 300 is the practical benchmark. The important point is not to treat a speed symbol as permission to drive an older car at modern high-speed expectations without considering the rest of the vehicle. Tire age, inflation, alignment, and the condition of the chassis all matter before any longer highway run. If the car will be used regularly, many owners start by deciding whether a radial or bias-ply setup best matches their comfort level.

Inflation pressure on 1952 Mercedes-Benz tires should be set by the specific tire and the vehicle's original recommendations, not copied from another size in the same year. Several products list rated load-and-pressure figures, including 550-16 examples up to 840 pounds at 32 psi and 992 pounds, 640-15 examples up to 1190 pounds at 32 psi, 205R15 at 1609 pounds at 34 psi, 710-15 at 1550 pounds at 32 psi, 185R15 at 1355 pounds at 35 psi, and 670-15 examples ranging from 1450 pounds at 32 psi to 1550 pounds at 32 psi depending on product.

Those figures describe the tire's rated capacity, not a universal vehicle setting for every 1952 Mercedes-Benz. The right approach is to begin with the factory recommendation for your exact model and then make sure the chosen reproduction or radial tire's allowable pressure range is compatible with that use. A 170 on 550-16 should not inherit the pressure logic of a 300 on 205R15, and a bias-ply setup should not automatically be inflated like a radial simply because both fit a 15-inch wheel.

Before taking a 1952 Mercedes-Benz on a longer drive, inspect every tire for cracking, cuts, bulges, uneven wear, and correct cold inflation. Check that the valve stems are sound, that the spare is usable, and that any tube-type setup is holding air consistently. On a collector car, a tire can look presentable at a glance but still be too old or too brittle for a confident road trip.

Tires are only one part of the pre-drive routine on a car of this age, so they should be checked alongside brakes, steering play, wheel fasteners, fluid levels, and the general readiness of the chassis. A Mercedes-Benz 170, 220, or 300 that has spent much of its life in storage may need extra attention even if it was fine on a short local drive. Give yourself time for a careful inspection before departure rather than assuming low mileage equals road-readiness.