The 1990 Mercedes-Benz 300-Class, part of the W124 E-Class generation, represented the marque's commitment to engineering excellence and luxury. Available as a sedan (300E, 300D), coupe (300CE), and convertible (300 Cabriolet), it spanned model years from 1986 to 1995. Its popularity stemmed from its legendary build quality, refined ride, and sophisticated design. Original pricing ranged from the mid-$40,000s upwards, making it a premium offering.
The Good
The 1990 300-Class offers a blend of robust performance and exceptional build quality. Its comfortable, quiet interior appeals to practical buyers, while its timeless design and the prestige of the Mercedes-Benz badge resonate emotionally. Reliability is a hallmark, promising enduring value.
The Bad
Potential buyers should be aware of common issues like aging rubber components (hoses, seals), potential head gasket leaks, and the need for diligent maintenance. Electrical system quirks and rust, particularly on older examples, can also arise, demanding thorough inspection.
1990 Mercedes-Benz 300-Class: Quick Overview
- Engine Options: The primary engine for the 1990 300-Class was the M103 inline-six. Common variants included:
- 3.0L (2960cc) SOHC 12-valve inline-6 petrol (300E, 300CE)
- 3.0L (2996cc) SOHC 12-valve inline-6 diesel (300D - typically found in later W124 models, but 1990 saw the W124 sedan introduced, and diesel variants would follow for this generation)
- For 1990, the US market 300E and 300CE predominantly featured the 3.0L petrol engine. - Horsepower:
- 300E/CE (M103): Approximately 180-190 horsepower, depending on specific market tuning. - Fuel Economy:
- For the 300E/CE, expect figures around 16-18 MPG city and 20-23 MPG highway. Diesel variants would offer significantly better fuel economy. - 0-60 Times:
- Around 8.5 to 9.5 seconds for the 300E/CE models. - Towing Capacity:
- Mercedes-Benz vehicles of this era were not typically advertised with specific towing capacities for passenger cars, as they were not designed as primary towing vehicles. - Trim-Level Features (General for the W124 E-Class in 1990):
- Standard Features: Power windows, power locks, power mirrors, automatic climate control, anti-lock brakes (ABS), driver and passenger airbags (becoming more standard), cruise control, tilt/telescoping steering wheel, high-quality interior materials (leatherette or optional leather), AM/FM stereo with cassette player, power antenna, and a comprehensive toolkit.
- Optional Features: Sunroof (manual or power), heated seats, leather upholstery, upgraded sound system, alloy wheels, limited-slip differential (on some performance-oriented models), and metallic paint.
1990 Mercedes-Benz 300-Class Specifications
Vehicle Information
| Year | 1990 |
| Make | Mercedes-Benz |
| Model | 300-Class |
| Trim | - |
| Style | 2-Door Coupe |
| Type | Coupe |
| Category | Subcompact Car |
Manufacturing Details
| Made In | Germany |
| Manufacturing City | SINDELFINGEN |
Dimensions
| Doors | 2-Door |
| Curb Weight | 3505 pounds |
| Gross Vehicle Weight Rating | - |
| Overall Height | 54.90 inches |
| Overall Length | 183.90 inches |
| Overall Width | 68.50 inches |
| Wheelbase Length | 106.90 inches |
| Standard Seating | 4 |
Engine & Performance
| Engine | 3L I6 |
| Engine Size | 3L |
| Engine Cylinders | 6 |
| 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) | $55,700 |
| Invoice Price | - |
| Delivery Charges | - |
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What Problems Does the 1990 Mercedes-Benz 300-Class Have?
The 1990 Mercedes-Benz 300-Class, while generally robust, does have some commonly reported issues that owners should be aware of. One prevalent concern is the degradation of rubber components over time due to age and heat. This includes vacuum lines, fuel hoses, coolant hoses, and suspension bushings. Leaks from these areas can lead to various drivability issues and, in the case of fuel hoses, pose a fire risk. The head gasket on the M103 inline-six engine can also be a point of failure, often indicated by coolant loss or milky oil. Another area to watch is the electrical system; while generally reliable, components like the blower motor resistor, window regulators, and central locking system can develop faults. The infamous biodegrading wiring harness, a problem that affected Mercedes-Benz vehicles across several model years in the late 80s and early 90s, is also a concern, though its severity can vary. Water ingress into the fuse box or ECU can cause significant electrical gremlins. Rust is another factor, particularly in areas exposed to road salt and moisture, often affecting the wheel arches, rocker panels, and undercarriage. While specific recalls for the 1990 model year might be limited, ongoing maintenance and addressing these common wear items are crucial for long-term reliability. For instance, keeping up with cooling system maintenance, including regular flushing and replacement of components, can prevent premature head gasket failure. Early intervention on any oil or coolant leaks is also highly recommended. There were no widespread, model-year-specific major recalls that fundamentally compromised the design for the 1990 300-Class itself, but owners should always check for any outstanding recalls related to safety components or emissions.
How long will the 1990 Mercedes-Benz 300-Class last?
With proper and consistent maintenance, the 1990 Mercedes-Benz 300-Class is renowned for its exceptional longevity. It's not uncommon to find these vehicles with well over 200,000 miles, and many have surpassed 300,000 miles. Owners who diligently follow the recommended service intervals, use high-quality fluids, and address minor issues promptly can expect decades of reliable service. The core mechanical components, including the engine and transmission, are built to last. However, long-term durability is directly tied to maintenance. Neglect of the cooling system, transmission fluid changes, and basic tune-ups can lead to premature wear and costly repairs, highlighting its weaknesses over time if not cared for.
What Technology & Safety Features are Included?
The 1990 Mercedes-Benz 300-Class offered a sophisticated suite of technology for its era, prioritizing driver and passenger comfort and safety. Standard technology included power-adjustable windows, power door locks, a power antenna for the AM/FM/cassette stereo system, and a comprehensive analog instrument cluster displaying speed, RPM, fuel level, and coolant temperature. Climate control was typically automatic, allowing for precise temperature regulation. For safety, the 1990 model year saw standard dual front airbags and an Anti-lock Braking System (ABS), which was a significant advancement. The car's body structure was designed with crumple zones and a reinforced passenger cabin, contributing to its strong safety credentials.
Optional features enhanced the luxury and convenience. These could include heated front seats, leather upholstery, a power sunroof, and an upgraded sound system with more speakers. Some higher-trim models might have offered features like cruise control with speed-hold functions. Driver-assistance features were minimal by today's standards, focusing on ABS for braking assistance and the inherent stability of the chassis.
Crash-test ratings for the W124 E-Class generation were generally excellent for its time. While specific NHTSA or IIHS ratings for the 1990 model might not be as extensively documented as modern vehicles, the W124 platform was recognized for its structural integrity and occupant protection. The platform consistently performed well in European safety tests, which heavily influenced Mercedes-Benz's global design philosophy. The car's solid construction and thoughtful engineering contributed to a perception of exceptional safety, a key selling point for Mercedes-Benz.
Optional features enhanced the luxury and convenience. These could include heated front seats, leather upholstery, a power sunroof, and an upgraded sound system with more speakers. Some higher-trim models might have offered features like cruise control with speed-hold functions. Driver-assistance features were minimal by today's standards, focusing on ABS for braking assistance and the inherent stability of the chassis.
Crash-test ratings for the W124 E-Class generation were generally excellent for its time. While specific NHTSA or IIHS ratings for the 1990 model might not be as extensively documented as modern vehicles, the W124 platform was recognized for its structural integrity and occupant protection. The platform consistently performed well in European safety tests, which heavily influenced Mercedes-Benz's global design philosophy. The car's solid construction and thoughtful engineering contributed to a perception of exceptional safety, a key selling point for Mercedes-Benz.
What Colors Options are Available?
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In the meantime, feel free to explore the other sections for more content.
1990 Mercedes-Benz 300-Class Prices and Market Value
When new, a 1990 Mercedes-Benz 300-Class sedan carried a Manufacturer's Suggested Retail Price (MSRP) typically starting in the mid-$40,000s, with coupes and convertibles commanding higher prices. These vehicles were premium offerings, reflecting their luxury and engineering.
Today, the used market prices for the 1990 300-Class vary significantly, generally ranging from $3,000 to $10,000 for average examples. Pristine, low-mileage, and well-maintained examples, especially coupes and convertibles, can fetch upwards of $15,000 or more.
Depreciation was steep in the initial years, as is typical for luxury vehicles. However, after the initial decline, the W124 E-Class, including the 300-Class, has proven to be remarkably resilient in value, especially compared to its contemporaries. Factors affecting resale value include overall condition, mileage, service history, originality, and the presence of desirable optional features. Well-documented maintenance and a rust-free body are paramount for higher valuations.
Today, the used market prices for the 1990 300-Class vary significantly, generally ranging from $3,000 to $10,000 for average examples. Pristine, low-mileage, and well-maintained examples, especially coupes and convertibles, can fetch upwards of $15,000 or more.
Depreciation was steep in the initial years, as is typical for luxury vehicles. However, after the initial decline, the W124 E-Class, including the 300-Class, has proven to be remarkably resilient in value, especially compared to its contemporaries. Factors affecting resale value include overall condition, mileage, service history, originality, and the presence of desirable optional features. Well-documented maintenance and a rust-free body are paramount for higher valuations.
1990 Mercedes-Benz 300-Class Cost of Ownership
Owning a 1990 Mercedes-Benz 300-Class involves costs that are generally higher than for mainstream vehicles. Insurance premiums can be moderate to high, depending on coverage and location. Fuel economy is respectable for its class, particularly with the diesel variants, but the gasoline engines are not exceptionally frugal. Maintenance and repair costs are the primary consideration; Mercedes-Benz parts and specialized labor are typically more expensive. While basic maintenance can be managed, complex repairs or replacing aged components can be costly. Overall, it is more costly to own than a comparable Japanese or domestic car of the same era, demanding a commitment to its upkeep.
1990 Mercedes-Benz 300-Class Fuel Efficiency
Fuel Type
Gasoline
Fuel Capacity
18.50 gallons
City Mileage
15 miles/gallon
Highway Mileage
21 miles/gallon
1990 Mercedes-Benz 300-Class Safety Rating
NHTSA
IIHS
1990 Mercedes-Benz 300-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
1990 Mercedes-Benz 300-Class Insurance
Insurance for a 1990 Mercedes-Benz 300-Class is moderately priced, reflecting its status as a Coupe with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 1990 Mercedes-Benz 300-Class Compare to Other Coupe?
In 1990, the Mercedes-Benz 300-Class competed with a range of luxury sedans, each offering a distinct blend of attributes. Key rivals included the BMW 5 Series (e.g., 525i, 535i), the Lexus LS 400 (though new for 1990 and positioned slightly higher), and the Audi 100/200.
Performance: The 300-Class offered a smooth, composed ride and adequate power from its inline-six engines. BMW typically provided a sportier driving dynamic with more responsive handling. The LS 400, with its V8, offered significantly more power and refinement.
Features: Mercedes-Benz excelled in build quality and a sense of solidity. Standard features like ABS and airbags were competitive. BMW offered a more driver-focused cockpit and often more engaging optional technology. The LS 400 set a new benchmark for luxury features and quietness.
Reliability: The 300-Class is legendary for its durability when properly maintained, though modern buyers must contend with aging components. BMWs of this era could also be reliable but often required more specialized maintenance. The early Lexus LS 400 quickly established a reputation for exceptional reliability, often surpassing European rivals.
Price: The 300-Class was priced competitively within the German luxury segment, generally below the most potent BMWs and the premium-priced LS 400.
Alternatives:
- BMW 5 Series (E34): For a more engaging driving experience, the E34 5 Series is a strong alternative. It offers similar build quality and luxury but with a sportier feel.
- Lexus LS 400: If ultimate refinement, quietness, and cutting-edge technology (for its time) are paramount, and budget allows for potentially higher purchase and repair costs, the LS 400 is an excellent choice. Its reliability is a major draw.
- Audi 100/200 (C3/C4): These offered a comfortable ride and Quattro all-wheel drive on some models, providing a different flavor of German luxury, though perhaps not the same level of perceived prestige as Mercedes-Benz or BMW.
Performance: The 300-Class offered a smooth, composed ride and adequate power from its inline-six engines. BMW typically provided a sportier driving dynamic with more responsive handling. The LS 400, with its V8, offered significantly more power and refinement.
Features: Mercedes-Benz excelled in build quality and a sense of solidity. Standard features like ABS and airbags were competitive. BMW offered a more driver-focused cockpit and often more engaging optional technology. The LS 400 set a new benchmark for luxury features and quietness.
Reliability: The 300-Class is legendary for its durability when properly maintained, though modern buyers must contend with aging components. BMWs of this era could also be reliable but often required more specialized maintenance. The early Lexus LS 400 quickly established a reputation for exceptional reliability, often surpassing European rivals.
Price: The 300-Class was priced competitively within the German luxury segment, generally below the most potent BMWs and the premium-priced LS 400.
Alternatives:
- BMW 5 Series (E34): For a more engaging driving experience, the E34 5 Series is a strong alternative. It offers similar build quality and luxury but with a sportier feel.
- Lexus LS 400: If ultimate refinement, quietness, and cutting-edge technology (for its time) are paramount, and budget allows for potentially higher purchase and repair costs, the LS 400 is an excellent choice. Its reliability is a major draw.
- Audi 100/200 (C3/C4): These offered a comfortable ride and Quattro all-wheel drive on some models, providing a different flavor of German luxury, though perhaps not the same level of perceived prestige as Mercedes-Benz or BMW.
Final Verdict: Is the 1990 Mercedes-Benz 300-Class a Good Coupe?
The 1990 Mercedes-Benz 300-Class is an ideal choice for buyers seeking a classic, well-built luxury vehicle that offers timeless style and enduring comfort. It's particularly suited for those who appreciate the engineering prowess of the era and are willing to invest in its upkeep. This car is worth buying if you prioritize build quality and a comfortable ride over cutting-edge performance or technology.
It is best purchased used. Focus on finding a well-maintained example with a comprehensive service history. Sedans (300E) offer the best value and practicality, while coupes (300CE) appeal more to enthusiasts. Avoid cars with significant rust or evidence of neglected maintenance, as repairs can be substantial. For those seeking a robust, stylish classic that can still serve as a reliable daily driver with diligent care, the 300-Class remains a compelling option.
It is best purchased used. Focus on finding a well-maintained example with a comprehensive service history. Sedans (300E) offer the best value and practicality, while coupes (300CE) appeal more to enthusiasts. Avoid cars with significant rust or evidence of neglected maintenance, as repairs can be substantial. For those seeking a robust, stylish classic that can still serve as a reliable daily driver with diligent care, the 300-Class remains a compelling option.
Eugene S
Eugene is an automotive enthusiast with over 15 years of experience in the used car market. As a writer at VINCheck.info, he brings deep industry insight and a passion for cars, helping readers make smart, informed decisions. Eugene has written hundreds of used car reviews and is known for breaking down complex automotive topics into clear, actionable advice. Over the years, he has driven and worked on a wide range of vehicles—starting with tuning street cars in his early days and eventually focusing on performance upgrades and reliability improvements. Today, he specializes in evaluating used vehicles through the lens of real-world ownership and enthusiast needs. A longtime fan of Porsche, Eugene especially appreciates vehicles that blend durability with driving enjoyment.