The passage of time can be harsh on automobiles, often revealing flaws and diminishing their appeal from their initial launch. However, the Mercedes-Benz SL, introduced in 1971 with the R107 generation, defied this trend. Instead, this model matured gracefully, becoming increasingly desirable throughout its remarkable 18-year production run.
Several factors contributed to the R107 SL’s lasting success. Mercedes-Benz engineered this generation to exceptionally high standards. This dedication to quality was typical of Mercedes-Benz manufacturing at the time, and it was also a necessity as the R107 had to surpass the iconic W113 ‘Pagoda’ SL. The new model needed to be superior in every aspect to satisfy Mercedes’ discerning and affluent clientele. This commitment to excellence during development led to its internal nickname: the ‘Panzerwagen’, hinting at its robust and solid construction.
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The ‘Panzerwagen’ moniker reveals much about Mercedes’ design philosophy for the R107 SL. They weren’t aiming to compete directly with the Jaguar E-type or Maserati Ghibli in terms of outright speed and aggressive handling. The Mercedes R107 Sl was conceived as a refined cruiser, designed to transport occupants across vast distances in comfort and then allow them to arrive in sophisticated style. This focus on comfort and cruising also translated into exceptional safety, thanks to its substantial crash structure and the inclusion of a padded four-spoke steering wheel, further enhancing occupant protection.
To propel this heavier and more luxurious roadster, Mercedes utilized V8 engines borrowed from their larger saloon models. The initial offerings were the 350 SL and 350 SL 4.5, with the latter being renamed the 450 SL in 1973. Responding to the fuel crisis of the early 1970s, Mercedes introduced the 280 SL in 1974, featuring a straight-six engine. From this point onwards, a six-cylinder engine remained a constant in the range. The 280 SL was eventually replaced by the 300 SL in 1985, which continued until the end of the R107’s production. Further V8 engine options were available throughout its lifespan, including the 380 SL, 420 SL, 500 SL, culminating in the 560 SL as the ultimate expression of the Mercedes roadster.
Throughout its production, the Mercedes R107 SL benefited from continuous improvements. Anti-lock brakes (ABS) became available as an option from March 1980, and a driver’s airbag was offered from early 1982. Also in early 1980, the previously optional hardtop became standard equipment on all SL models, further enhancing its versatility. Even as the model approached the end of its production run, Mercedes continued to innovate, equipping all versions with a closed-loop catalytic converter in mid-1985, reflecting growing environmental consciousness.
The robust build quality and inherent strength of the Mercedes R107 SL have resulted in a high survival rate from the 237,287 units produced between 1971 and 1989. With a significant number still on the road, the R107 SL presents an appealing combination of classic roadster charm and everyday usability. Their relatively plentiful numbers also contribute to more accessible prices compared to models like the Pagoda SL, which have become increasingly exclusive and expensive.
The Driving Experience of a Mercedes-Benz SL R107
The design philosophy of the Mercedes-Benz R107 SL was heavily influenced by the American concept of a ‘personal luxury car’, which profoundly shaped its driving characteristics.
While launched with potent V8 engines, these powerplants were engineered for refinement rather than raw aggression, especially when compared to the more visceral American muscle cars popular when the SL debuted. Mercedes positioned the SL as a comfortable and luxurious vehicle capable of swift progress when required. It wasn’t intended to be as agile as an Aston Martin DBS or as ferociously fast as a Ferrari Daytona. Instead, the Mercedes R107 SL offered superior practicality for daily driving and all-weather capability.
Remarkably, these inherent qualities have endured. Even early models, now over 50 years old, remain remarkably user-friendly and easy to operate in modern traffic. Most original buyers opted for the four-speed automatic gearbox, even when manual transmissions were available. Consequently, cars equipped with the four- or five-speed manual transmissions are exceptionally rare finds today.
Performance is best described as brisk rather than outright fast. The initial 350 SL achieved 0-60mph in around nine seconds, while the later 500 SL reduced this to approximately seven seconds. The 300 SL, with a 0-60mph time of 8.4 seconds, strikes a compelling balance, offering a pleasing blend of performance and efficiency, particularly for those who can forgo the distinctive V8 rumble.
Regardless of the engine or transmission, the Mercedes R107 SL encourages a relaxed driving style, well within its performance limits. Driven aggressively, the handling is predictable and safe, with the front end exhibiting understeer long before the rear tires lose traction. Therefore, attempting spirited driving is less rewarding than simply enjoying the ample mid-range torque and refined nature of the engines. The exceptional structural integrity of the SL is also apparent, with minimal body flex or vibrations even on rough road surfaces.
There’s a noticeable progression in the driving dynamics of the Mercedes R107 SL throughout its production run. Earlier models feature softer suspension and less direct steering feel, while later iterations offer a more responsive and precise driving experience, although they still prioritize comfort over outright sportiness compared to contemporary BMW models. With the soft top down, the SL is in its element. The generously proportioned seats provide excellent support, and the cabin remains relatively calm even at higher speeds, with minimal wind buffeting. Raising the soft top provides effective weather protection, although it’s not exceptionally quiet. For enhanced sound insulation, the hardtop significantly reduces road and wind noise, creating a more serene cabin environment.
Mercedes-Benz SL R107: Cost and Value in Today’s Market
The Mercedes R107 SL generation exhibits a wider price range than many comparable classic roadsters from the same era. Condition plays a crucial role in valuation. A neglected example requiring extensive restoration will be considerably more expensive to bring up to standard than an SL already in good condition. This disparity in restoration costs keeps the values of less well-maintained cars relatively lower, making seemingly inexpensive examples potentially risky purchases.
At the entry point of the R107 SL market, a running and driving SL 280 can be found for approximately £10,000. While requiring cosmetic and mechanical attention, it offers an accessible entry into R107 SL ownership. The 300 SL, generally considered more desirable, commands a premium of around £3,000 for a car in ‘fair’ (Condition 4) condition. Early 350 SL and 450 SL V8 models are generally priced similarly to the 300 SL across various conditions. Consequently, expect to pay around £25,000 for a well-maintained 300 SL, 350 SL, or 450 SL, and up to £45,000 or more for exceptional, concours-quality examples. A pristine 280 SL can fetch prices in the high £30,000 range.
The 500 SL, the largest engine displacement offered to UK buyers, typically sells for just over £24,000 in ‘good’ (Condition 3) condition according to the Hagerty Price Guide. However, pristine, low-mileage examples can command prices exceeding £50,000. The 560 SL, not originally sold in the UK, are imports from the US or Europe. Their prices tend to align with the 500 SL, but ensure any imported 560 SL has had its headlights converted for UK road legality.
Common Issues and What to Inspect When Buying a Mercedes R107 SL
The Mercedes R107 SL is renowned for its durability and resilience to regular use, but neglect will inevitably take its toll. Bodywork is often the most significant concern and potential expense in R107 SL restoration. A thorough pre-purchase inspection of the body is crucial, as rust can be concealed beneath fresh paint.
Begin your inspection by examining the areas above the headlamps for any signs of bubbling paint or subpar repairs. Carefully inspect the bonnet, boot lid, doors, wheel arches, sills, and floor panels. Pay close attention to the windscreen surround for rust and check the bulkhead area for water accumulation, a common source of corrosion. Bumpers tend to rust from the rear, so reach behind them to check for roughness. If the car includes its hardtop, inspect it thoroughly for damage and corrosion as well.
Inside the cabin, the trim materials are generally robust, but check for wear on fabric seats, as matching original cloth can be challenging. Leather upholstery is more easily restored. Complete soft top replacements are available, and the rear plastic screen can be replaced if cloudy or cracked. Mercedes’ MB-Tex vinyl upholstery is exceptionally durable; significant wear suggests a very hard life.
Verify the functionality of all cabin electrical systems, including the central locking, which operates on a vacuum system prone to leaks. Dampness inside the cabin usually indicates worn hood and window seals or corrosion in the bulkhead.
The engines, whether six-cylinder or V8, are generally very reliable. V8 engines can sometimes suffer from noisy tappets, which may be resolved with an oil change, but more severe wear could necessitate rocker arm replacement. The radiator is a common weak point due to its exposed position, making it susceptible to stone damage. Check for overheating during a test drive and inspect the radiator for leaks.
The Mercedes R107 SL should provide a smooth and quiet driving experience. Squeaks or rattles often indicate worn suspension bushes, which are relatively straightforward for a specialist to replace and will improve both handling and ride comfort. Vague steering feel is frequently caused by a worn steering box, which can be adjusted to reduce play but may eventually require rebuilding. New steering boxes are still available from Mercedes but are expensive. The steering system also includes a damper that wears with age, so consider replacing it concurrently with the steering box.
Choosing the Right Mercedes-Benz SL R107 for Your Needs
Given the extended production run of the Mercedes R107 SL and the diverse range of engines offered, there’s likely an SL to suit a variety of preferences and budgets. Six-cylinder models are generally more affordable to purchase and operate compared to the larger V8 versions. However, consider that the 350 SL or 380 SL can offer comparable fuel economy to the 280 SL or 300 SL in real-world driving. The straight-six engine models often provide slightly more agile handling due to reduced front-end weight, and their engines are generally more responsive at higher RPMs.
Remember that the Mercedes R107 SL is not a sports car in the mold of a Porsche 911. For an excellent all-around entry point to R107 SL ownership, the post-1985 300 SL is often considered the sweet spot. It provides a comfortable cruising experience comparable to many V8 models, combined with good refinement and reasonable fuel consumption for more frequent use.
The 300 SL also benefited from Mercedes’ chassis improvements implemented in later models, including enhanced suspension geometry for improved handling and steering feel, standard low-profile tires, and a front chin spoiler to reduce aerodynamic lift at higher speeds.
For those desiring a V8-powered Mercedes-Benz SL, the 500 SL is the prime choice within the UK market, as 560 SL models are imports. However, a well-maintained 560 SL is still a worthwhile consideration. While the 500 SL is more expensive to acquire, it delivers enhanced performance with negligible fuel consumption penalty compared to the smaller V8 siblings.
Later 500 SL versions produced from mid-1985 onwards gained increased power output at 245bhp, though with slightly reduced torque. Ultimately, condition should be the primary factor when choosing between engine variants and model years.
Further Reading:
New AMG 43 turbo is first four-pot SL since the Fifties
The 190E EVO that Mercedes never made | Rendered with Kyza
The original Mercedes 300SL should have been a failure | Revelations with Jason Cammisa
