Meghan Hodges
The 1985 Mercedes 300D Turbodiesel is a classic car with a dedicated following. With its OM617 turbodiesel engine, it has achieved legendary reliability and longevity, and some have been known to last for over 500,000 miles. However, the question of how polluting this car is remains. In this article, we will explore the environmental impact of the 1985 Mercedes 300D Turbodiesel and compare it to other cars of its time. We will also discuss the steps that Mercedes has taken to improve the car's efficiency and reduce its emissions.
| Characteristics | Values |
|---|---|
| Year | 1985 |
| Manufacturer | Mercedes-Benz |
| Model | 300D |
| Engine | OM617 Turbodiesel inline-five |
| Horsepower | 123 |
| Torque | 184 lb-ft |
| Transmission | 722.3 four-speed automatic |
| Mileage | Often exceeded 100,000 miles; some reached 300,000-500,000+ miles |
| Maintenance | Prone to carbon buildup and clogged fuel injectors |
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What You'll Learn
The OM617 engine's horsepower and pound-feet
The OM617 engine is a straight-5 diesel automobile engine from Mercedes-Benz that was used in the 1970s and 1980s. It was sold in vehicles from 1974 to 1991, with the last model year for the W123a being 1985. The engine is known for its reliability, with engines often reaching over 1,000,000 km without being rebuilt. It is also popular for its ability to use alternative fuels such as straight or waste vegetable oil and biodiesel.
The OM617 engine has undergone several modifications throughout its production run. The original power output was 80 PS (59 kW; 79 hp), which was later increased to 88 PS (65 kW; 87 hp). The turbocharged version of the engine, known as the OM617A, debuted in 1976 and produced 190 PS (140 kW; 187 hp). Further modifications and upgrades were made to the engine over the years, with power output eventually reaching 125 horsepower and 181 pound-feet in the late 1980s.
The OM617 engine has a capacity of 3.0 liters and features a cast-iron cylinder block and a cast-iron 10-valve cylinder head. The turbocharged version of the engine includes modifications such as oil jets to cool the underside of the pistons, stronger connecting rods, and a stronger nitride-hardened crankshaft. The turbocharger improves the engine's thermal efficiency, resulting in a lower fuel consumption rate.
The OM617 engine has a strong following among car enthusiasts, with many praising its reliability and performance. Some owners have reported issues with noisy operation, strong vibrations, and frequent lubricant leaks, particularly through the crankshaft rear oil seal. Despite this, the OM617 engine is considered a popular choice for those seeking a powerful and reliable diesel engine.
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The car's longevity and reliability
The 1985 Mercedes 300SD Turbo Diesel is renowned for its longevity and reliability. Even with high mileage, these cars are known to keep running strong. One owner of a 1985 model with over 238,000 miles (or 382,000+ kilometres) reported that all five cylinders were functioning perfectly and that the car had never broken down while driving. Another owner of a 1982 model with almost 300,000 miles attested to its durability.
The 1985 Mercedes 300SD Turbo Diesel's reliability is further evidenced by the many accounts of owners who have driven these cars for extended periods without experiencing breakdowns. One owner shared that their car had been running well for 9.5 years, while another mentioned that their friend drove one every day and loved it.
Maintenance is an important factor in ensuring the longevity of these vehicles. While some owners have reported that their cars required significant work due to neglect, the cars continued to run despite the lack of proper care. For example, one owner inherited a car with clogged fuel injectors and carbon buildup on the piston heads, but after addressing these issues, the car continued to run smoothly.
The drivetrain of the 1985 Mercedes 300SD Turbo Diesel is particularly praised for its durability, with some owners considering it bulletproof. The availability of parts is also a positive aspect of ownership, as they are described as plentiful and inexpensive. However, it's worth noting that the vacuum systems in these older cars can be problematic, and rust is a common issue, especially in vehicles outside of California.
Despite some challenges with maintenance and aesthetics, the 1985 Mercedes 300SD Turbo Diesel has proven its longevity and reliability. With proper care and attention to key systems, these cars can provide their owners with many years and miles of enjoyable driving experiences.
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The cost of importing to the US
The cost of importing a car to the US varies depending on factors such as the type of vehicle, its age, the method of transportation, and the port of arrival.
When importing a car, it is recommended to provide the original overseas title along with a bill of sale. The original title will be stamped upon import approval by US customs. Without this, only an electronic record of the import entry will be available, which may pose challenges for registration with your local DMV. DMV requirements vary by state, but typically the DMV will require the original foreign title, the original import documentation stamped by US customs, and the bill of sale.
The cost of importing a car to the US by ship starts at $2,750 per car for a shared container. This price does not include vehicle collection, destination fees, import duties, and cargo damage protection. Air freight is a faster option, delivering in 3-10 days, but it is significantly more expensive, starting at $13,750 for shipping to major US airports.
Other costs to consider when importing a car to the US include import duties, customs bonds, and expenses related to licensing and registration. US-made vehicles may qualify for free trade, but foreign-made vehicles are dutiable. A customs entry bond is required for every imported vehicle, with options for a Single-Entry Bond for one-time imports or a Continuous Bond for multiple imports within 12 months.
It is important to note that importing an older vehicle may require additional work to meet safety standards for American roads, which can increase the overall cost of importing the vehicle.
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The car's fuel efficiency
The 1985 Mercedes 300D Turbo Diesel is a car with impressive fuel efficiency. Owners of this model expected their vehicles to reach 300,000 miles, a stark contrast to most cars of the same period, which were not expected to surpass the 100,000-mile mark.
The 1985 Mercedes 300D Turbo Diesel's fuel efficiency is a testament to its engineering and design, making it a reliable and enduring vehicle even decades after its release. This fuel efficiency has contributed to the car's longevity, with many still on the road today, and some even exceeding 500,000 miles.
Despite the car's impressive fuel efficiency, it may not be a desirable purchase for used-car shoppers today, especially in regions like Colorado, where AWD vehicles are preferred. However, for those seeking a durable and fuel-efficient car, the 1985 Mercedes 300D Turbo Diesel remains a viable option, showcasing its lasting appeal even in the modern automotive market.
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The car's luxury features
The 1985 Mercedes Turbo Diesel is a classic car with a dedicated following. While it may not have been a luxury car when it first hit the roads, it has earned a reputation for its reliability and longevity, with some owners expecting their cars to reach 300,000 miles.
The interior of the 1985 Mercedes Turbo Diesel is also notable. The MB-Tex upholstery has proven to be long-lasting, with some original interiors still in excellent condition. The car also offered a unique air cleaner, a safety dashboard, and an airbag for the driver, enhancing its luxury and safety credentials.
The W123 model was the first Mercedes to offer a factory-built station wagon, known as the T-model, providing buyers with an option other than the standard sedan. The W123 300 TD turbodiesel was one of the first turbodiesel cars on the European market, showcasing Mercedes' innovation at the time.
While the car has its drawbacks, such as the need for fuel injector maintenance and carbon buildup removal, its luxury features, and legendary reliability have ensured its place in automotive history.
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