The 1989 Mercedes-Benz SL-Class, part of the R107 generation that spanned from 1971 to 1989, is a timeless German luxury convertible. Known for its impeccable build quality and refined driving experience, this iconic model cemented its status as a symbol of automotive excellence. Key trims included the 300SL, 420SL, and 560SL, with original prices reflecting its premium positioning. Its enduring popularity stems from its blend of performance, comfort, and sophisticated design that still captivates enthusiasts today.
The Good
The 1989 SL-Class boasts a robust V8 engine delivering smooth, potent performance. Its legendary Mercedes-Benz reliability ensures peace of mind, while the plush interior offers exceptional comfort for long journeys. The timeless design appeals to the heart, while its enduring build quality and potential for value retention resonate with practical buyers.
The Bad
Potential buyers should be vigilant for rust, particularly around wheel arches, sills, and the convertible top frame. Electrical gremlins can also surface, and the automatic transmission may require attention. Engine and suspension components, though durable, can be costly to repair if neglected, emphasizing the need for thorough pre-purchase inspections.
1989 Mercedes-Benz SL-Class: Quick Overview
- Engine Options: The 1989 Mercedes-Benz SL-Class was primarily offered with V8 engines, though a 6-cylinder was available in earlier years of the R107 generation. For 1989, the US market typically saw:
- 300SL (in some markets): 3.0L Inline-6 (less common for the final year of R107 generation in the US, more prevalent in Europe)
- 420SL: 4.2L V8
- 560SL: 5.6L V8
- Horsepower: Horsepower figures varied by engine and market, but generally ranged from approximately 150-180 hp for the 6-cylinder to 220-230 hp for the V8 engines. The 560SL was the most powerful.
- Fuel Economy: Expect fuel economy to be in the single digits for city driving and low to mid-teens for highway driving, given the larger displacement V8 engines. These were not designed with efficiency as a primary concern.
- 0-60 Times: 0-60 mph times for the V8 models typically ranged from around 7 to 8.5 seconds, offering respectable acceleration for the era.
- Towing Capacity: Towing capacity is generally not applicable or recommended for the SL-Class, as it is a luxury grand tourer designed for passenger comfort and performance, not utility.
- Trim-Level Features:
- 300SL (where applicable): Often featured a slightly less powerful engine but still offered premium amenities.
- 420SL: A balanced option with good performance and luxury features.
- 560SL: The top-tier model, offering the most potent engine, enhanced luxury appointments, and often more standard equipment such as upgraded wheels, leather upholstery, and climate control.
- Common Standard Features across trims included: Power windows, power seats, cruise control, air conditioning, a high-quality stereo system, power steering, anti-lock brakes (ABS), and a removable hardtop for coupe-like security. Options might have included heated seats and upgraded audio systems.
1989 Mercedes-Benz SL-Class Specifications
Vehicle Information
| Year | 1989 |
| Make | Mercedes-Benz |
| Model | SL-Class |
| Trim | - |
| Style | - |
| Type | Convertible |
| Category | Compact Car |
Manufacturing Details
| Made In | Germany |
| Manufacturing City | SINDELFINGEN |
Dimensions
| Doors | 2-Door |
| Curb Weight | 1680.56 kg |
| Gross Vehicle Weight Rating | - |
| Overall Height | 129.79 cm |
| Overall Length | 457.96 cm |
| Overall Width | 179.07 cm |
| Wheelbase Length | 245.62 cm |
| Standard Seating | 2 |
Engine & Performance
| Engine | 5.6-L V-8 SOHC 16V |
| Engine Size | 5.6L |
| Engine Cylinders | 8 |
| Transmission | 4-Speed Automatic |
| Transmission Type | Automatic |
| Transmission Speeds | 4-Speed |
| Drivetrain | Rear-Wheel Drive |
Additional Features
| Anti-Brake System | 4-Wheel ABS |
| Steering Type | Recirculating |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | $64,230 USD |
| Invoice Price | - |
| Delivery Charges | - |
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What Problems Does the 1989 Mercedes-Benz SL-Class Have?
The 1989 Mercedes-Benz SL-Class, being part of the R107 generation, is generally known for its robust engineering and long-term durability. However, like any vehicle of this age, certain issues are more commonly reported. One significant area of concern is rust. Thorough inspections for corrosion are essential, particularly in the lower body panels, wheel arches, rocker panels, and around the convertible top frame. Water ingress into the cabin can also be an issue if seals are degraded, leading to potential electrical problems and mold growth.
Electrically, older Mercedes-Benz vehicles can experience issues with wiring harness degradation, particularly the plastic insulation becoming brittle over time. This can lead to intermittent problems with various systems, including the fuel injection, lighting, and power accessories. The climate control system, particularly the vacuum-operated actuators, can also fail, leading to erratic temperature control or blower fan issues. The automatic transmission, while generally reliable, can develop leaks or shift harshly if not properly maintained.
For the 1989 model year specifically, as it was the final year of the R107 generation, most of the common R107 issues would still be relevant. There were no widespread, model-year specific recalls that significantly plague the 1989 SL-Class that differ from the general R107 platform's known characteristics. Owners who have maintained their vehicles diligently often report exceptional long-term reliability, with major components like the engine and transmission lasting hundreds of thousands of miles. However, neglect and lack of regular maintenance will invariably lead to more significant and costly repairs. Sourcing parts for some less common trim-specific or electrical components might require specialized suppliers.
Electrically, older Mercedes-Benz vehicles can experience issues with wiring harness degradation, particularly the plastic insulation becoming brittle over time. This can lead to intermittent problems with various systems, including the fuel injection, lighting, and power accessories. The climate control system, particularly the vacuum-operated actuators, can also fail, leading to erratic temperature control or blower fan issues. The automatic transmission, while generally reliable, can develop leaks or shift harshly if not properly maintained.
For the 1989 model year specifically, as it was the final year of the R107 generation, most of the common R107 issues would still be relevant. There were no widespread, model-year specific recalls that significantly plague the 1989 SL-Class that differ from the general R107 platform's known characteristics. Owners who have maintained their vehicles diligently often report exceptional long-term reliability, with major components like the engine and transmission lasting hundreds of thousands of miles. However, neglect and lack of regular maintenance will invariably lead to more significant and costly repairs. Sourcing parts for some less common trim-specific or electrical components might require specialized suppliers.
How long will the 1989 Mercedes-Benz SL-Class last?
With diligent maintenance and care, a 1989 Mercedes-Benz SL-Class can easily surpass 200,000 miles, with many examples exceeding 300,000 miles. These vehicles were built to last and designed for the autobahn, meaning they hold up well to extended use. The long-term durability is a testament to their robust engineering, particularly the engines and transmissions. Weaknesses that emerge over time are typically related to age and wear, such as rubber seals, suspension bushings, and potential electrical component fatigue. However, these are often manageable with consistent preventative maintenance and prompt attention to minor issues. The key to longevity is a commitment to regular servicing and addressing any signs of rust early on.
What Technology & Safety Features are Included?
The 1989 Mercedes-Benz SL-Class, while a luxury vehicle for its time, features technology and safety systems that reflect the automotive standards of the late 1980s. Built-in technology primarily focused on comfort and convenience. Standard entertainment features included a quality AM/FM stereo radio, often with a cassette player, offering decent sound for its era. Power amenities were abundant, such as power windows, power seats with memory functions for the driver, and power mirrors.
Driver-assistance features were somewhat nascent but present. Cruise control was a common inclusion, aiding in comfortable long-distance driving. Power steering made maneuvering effortless, and the car's suspension was tuned for a compliant and stable ride. The braking system typically featured anti-lock brakes (ABS) as standard, a significant safety advancement at the time, providing enhanced control during emergency stops.
Safety was a strong suit for Mercedes-Benz in this period. Beyond ABS, the SL-Class featured a reinforced passenger cell, crumple zones designed to absorb impact energy, and often driver and passenger airbags (though airbags were not universally standard on all trims or markets in 1989 and might have been optional). The car also had robust door beams and a strong structural integrity, contributing to its excellent safety record.
Optional features could have included a more advanced sound system, heated seats, and perhaps even a limited-slip differential for enhanced traction. While official crash-test ratings from organizations like the NHTSA or IIHS from this specific era are not as readily available or standardized as modern tests, the R107 SL-Class was renowned for its build quality and safety engineering, generally performing well in its contemporary evaluations. Its substantial weight and solid construction were key contributors to occupant protection.
Driver-assistance features were somewhat nascent but present. Cruise control was a common inclusion, aiding in comfortable long-distance driving. Power steering made maneuvering effortless, and the car's suspension was tuned for a compliant and stable ride. The braking system typically featured anti-lock brakes (ABS) as standard, a significant safety advancement at the time, providing enhanced control during emergency stops.
Safety was a strong suit for Mercedes-Benz in this period. Beyond ABS, the SL-Class featured a reinforced passenger cell, crumple zones designed to absorb impact energy, and often driver and passenger airbags (though airbags were not universally standard on all trims or markets in 1989 and might have been optional). The car also had robust door beams and a strong structural integrity, contributing to its excellent safety record.
Optional features could have included a more advanced sound system, heated seats, and perhaps even a limited-slip differential for enhanced traction. While official crash-test ratings from organizations like the NHTSA or IIHS from this specific era are not as readily available or standardized as modern tests, the R107 SL-Class was renowned for its build quality and safety engineering, generally performing well in its contemporary evaluations. Its substantial weight and solid construction were key contributors to occupant protection.
What Colors Options are Available?
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In the meantime, feel free to explore the other sections for more content.
In the meantime, feel free to explore the other sections for more content.
1989 Mercedes-Benz SL-Class Prices and Market Value
When new in 1989, the Mercedes-Benz SL-Class was a significant investment, with prices typically ranging from around $60,000 for the 420SL to upwards of $70,000+ for the 560SL, depending on options and market. These were premium luxury cars. In the current used market, the 1989 SL-Class has seen its value stabilize and even appreciate in recent years, particularly for well-maintained examples. Well-kept 560SL models can command prices from $15,000 to $30,000 or more, while the 420SL might range from $10,000 to $20,000. Depreciation has largely run its course; these cars are now considered classic investments. Resale value is heavily influenced by condition, mileage, originality, service history, and the presence of the desirable hardtop.
1989 Mercedes-Benz SL-Class Cost of Ownership
Owning a 1989 Mercedes-Benz SL-Class is generally considered costly rather than economical. Insurance premiums can be moderate to high, especially for collector car policies, depending on your driving record and coverage. Fuel consumption is relatively poor due to the V8 engines, averaging around 10-15 MPG. Maintenance costs are higher than average, requiring specialized mechanics familiar with German luxury cars. Repair parts, while available, can be expensive. Routine services and potential repairs for aged components will add up, making this a luxury purchase with significant ongoing financial commitment.
1989 Mercedes-Benz SL-Class Fuel Efficiency
Fuel Type
Gasoline
Fuel Capacity
85.17 liters
City Mileage
5.95 km/l
Highway Mileage
7.23 km/l
1989 Mercedes-Benz SL-Class Warranty
Basic
Original warranty
0 months / No data
Estimated remaining
Expired
Powertrain
Original warranty
0 months / No data
Estimated remaining
Expired
Rust
Original warranty
0 months / No data
Estimated remaining
Expired
1989 Mercedes-Benz SL-Class Insurance
Insurance for a 1989 Mercedes-Benz SL-Class is moderately priced, reflecting its status as a Convertible with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 1989 Mercedes-Benz SL-Class Compare to Other Convertible?
In 1989, the Mercedes-Benz SL-Class competed in a high-end luxury convertible segment against formidable rivals. Performance-wise, its V8 engines offered smooth, powerful acceleration, but perhaps lacked the outright sportiness of some competitors. Key rivals included the Jaguar XJ-S, which offered a more classically sporting feel and distinct British luxury, and the BMW 8 Series (though the 8 Series debuted a bit later and was positioned slightly higher in performance and price).
In terms of features, the SL-Class was a benchmark for luxury and build quality. It offered advanced safety features for its time, like ABS, and a comfortable, well-appointed interior. The Jaguar XJ-S also provided opulent interiors, though its styling was more polarizing, and its long-term reliability was historically a point of concern compared to Mercedes-Benz. The 8 Series would offer more cutting-edge technology and performance for its era.
Reliability is where the Mercedes-Benz SL-Class often shines brightest against its contemporaries. The R107 generation is renowned for its robust construction and durability, often outlasting its rivals in long-term ownership if properly maintained. While the Jaguar could be a mechanical headache, and BMWs of that era had their own unique electrical quirks, the Mercedes was often the more dependable choice.
Price-wise, the SL-Class was positioned at the upper end of the luxury market, often comparable to or slightly above comparable Jaguar models, and significantly less than the initial pricing of the later BMW 8 Series.
Similar or Better Alternatives:
In terms of features, the SL-Class was a benchmark for luxury and build quality. It offered advanced safety features for its time, like ABS, and a comfortable, well-appointed interior. The Jaguar XJ-S also provided opulent interiors, though its styling was more polarizing, and its long-term reliability was historically a point of concern compared to Mercedes-Benz. The 8 Series would offer more cutting-edge technology and performance for its era.
Reliability is where the Mercedes-Benz SL-Class often shines brightest against its contemporaries. The R107 generation is renowned for its robust construction and durability, often outlasting its rivals in long-term ownership if properly maintained. While the Jaguar could be a mechanical headache, and BMWs of that era had their own unique electrical quirks, the Mercedes was often the more dependable choice.
Price-wise, the SL-Class was positioned at the upper end of the luxury market, often comparable to or slightly above comparable Jaguar models, and significantly less than the initial pricing of the later BMW 8 Series.
Similar or Better Alternatives:
- Jaguar XJ-S: For those prioritizing classic British styling and a more engaging driving experience, the XJ-S is a compelling alternative, though potentially with higher maintenance costs.
- Porsche 944/968: If a more driver-focused, sports car experience is desired, these Porsches offer superior handling, though with less outright luxury and a different aesthetic.
- Later Model Mercedes-Benz SL (e.g., R129): The successor to the R107, the R129 SL (starting in 1989/1990), offered more modern technology, safety, and performance, but also came at a higher price point.
Final Verdict: Is the 1989 Mercedes-Benz SL-Class a Good Convertible?
The 1989 Mercedes-Benz SL-Class is ideal for the discerning buyer who appreciates timeless design, exceptional build quality, and a comfortable, luxurious grand touring experience. It's perfect for those who value a reliable classic that can be driven regularly without the constant anxiety of major mechanical failures, provided it's well-maintained. It's definitely worth buying as a used vehicle, offering excellent value for a bygone era of automotive craftsmanship. Prospective buyers should focus on well-preserved examples, ideally with comprehensive service records. The 560SL trim often represents the pinnacle of performance and luxury for this model year, making it a desirable choice for collectors and enthusiasts seeking a stylish and enduring convertible.
Cathleen V
Cathleen is an exceptional freelance writer covering hot topics in the automotive world from a gearhead's perspective. Her articles delve into various aspects of automotive technology and history, offering readers detailed insights into engine performance, reliability, and maintenance. Through her engaging and informative writing, Cathleen provides valuable information to automotive enthusiasts and consumers alike, helping them make informed decisions about vehicle maintenance and purchases.