1987 Mercedes 300D - Turbo Diesel

Vehicle Description

1987 Mercedes-Benz 300D (W124) – Classic Diesel, Well Maintained

If you’re looking for a piece of Mercedes-Benz history that blends durability, engineering excellence, and everyday drivability, this 1987 Mercedes-Benz 300D (W124 chassis) is worth your attention. This is the legendary OM603 inline-six diesel ... a car built for longevity, known for running half a million miles or more when maintained properly.

This particular 300D has been in good hands and received consistent care, with extensive mechanical work done in recent years to keep it strong and reliable. It’s not a show car ... it has cosmetic flaws and a few convenience items that need attention ... but it runs and drives well, and represents a solid example of a classic Mercedes diesel sedan.

Mechanical Condition

Engine: OM603 3.0L inline-six diesel, starts reliably, idles smoothly, and pulls strongly. The head gasket has been replaced, along with major cooling system components (water pump, thermostat, radiator hoses, and expansion tank). Fuel filters and vacuum lines have been serviced to ensure proper fueling and cold starts. Glow plugs and relay were replaced in 2019.
Transmission: Automatic transmission replaced in 2024, a major expense and peace of mind for the next owner.
Driveline: Driveshaft support bearing, flex discs, and center support were renewed, along with a rear differential service.
Suspension & Steering: Front ball joints, tie rods, idler arm, and steering damper replaced; multiple alignments performed after service. Car tracks straight and feels tight.
Brakes: Front rotors, pads, and sensors replaced. Brake master cylinder replaced, system flushed, and fresh fluid added. Braking is confident and balanced.
Mounts & Belts: Engine mounts, transmission mount, accessory drive belts, pulleys, and tensioners all replaced.

Known Issues / Disclosures

I believe in full transparency:

Air Conditioning does not work.
Rear driver’s side window is inoperative (other windows serviced but one still needs work).
Drivers door key hole is not functioning.
Stereo aftermarket unit is currently not working.
Radio antenna is bent.
Cosmetic condition: Paint shows age, interior has wear, and the car overall could use cosmetic TLC to match its mechanical strength.
trunk seal needs repair, leaks
odometer not functioning. listed mileage is not accurate.

Recent Major Work

To give you confidence, here’s a quick highlight of the investment made in this car (all within the last decade, many items more recent):

Head gasket replacement with timing components
Water pump, thermostat, radiator hoses, coolant flush
Glow plugs and relay
Driveshaft flex discs, center support, bearing
Suspension/steering overhaul (ball joints, tie rods, idler arm, damper)
Brake master cylinder, front rotors/pads/sensors, full brake fluid flush
Engine/trans mounts, accessory belts & pulleys
Transmission replaced (2024)

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If you know Mercedes diesels, you know why these W124 cars are sought after. They are comfortable highway cruisers, bulletproof commuters, and long-distance road trip machines. This car has had the major mechanical investments already made — the expensive jobs are behind you. What it needs now is a new owner who will appreciate it, keep up with routine maintenance, and either enjoy it as-is or give it some cosmetic love.

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This is a running, driving, well-maintained example of the classic Mercedes 300D diesel. It’s not perfect, but it’s solid, well cared for, and has thousands of dollars of recent work to ensure its future.

If you’re looking for a reliable daily driver with character, a classic diesel commuter, or a project to restore and enjoy for years to come, this 300D is an excellent candidate.

Clean title, ready to drive.
Car is located in North Carolina. Buyer responsible for pickup or shipping arrangements.

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