This 1984 Mercedes-Benz 300TD Turbo is powered by 3.0-liter turbocharged diesel inline-five paired with a 4-speed automatic transmission. The car was sold new in Illinois and reportedly remained with its original owner for 34 years, 31 of which were spent in Washington State. The seller acquired it approximately four months ago, and work since then has included the installation of new glow plugs, a glow plug controller, fuel and air filters, lower control arms, tie rod ends, an oil change, an alignment, and more. This S123 is offered with the original owner’s manuals, two Mercedes factory-cut keys, an accident-free Carfax report and a clean Oregon title in the owner’s name.

The exterior is finished in Silver Blue Metallic (930) and older paintwork is noted on the passenger front fender and rear liftgate. Clear coat damage is exhibited throughout, notably on the roof and hood, and dents are present on the left side of the liftgate and passenger front fender. Close-ups of the finish are included in the photo gallery below. New brackets have been installed to address loose rubber trim on the front bumper. The seller notes cracking can be seen in the exterior window brushes.

A walk-around of the exterior can be viewed above. Factory 14” alloy wheels wear three Michelin MXV4 tires wearing 2007 date codes and one new Michelin tire that was installed after a nail puncture. The lower control arms and all four tie-rod ends were recently replaced, and an alignment performed at the same time. The self-leveling rear suspension system is said to function, and the adjuster arm has been replaced within the last two months.

The interior is trimmed in blue MB Tex with matching carpet and Zebrano wood accents. The dash and its wood inserts show cracks and warpage, and wear is also noted on the driver’s seat bottom, which has been patched with matching vinyl. The seller also notes warpage of the roof trim over the cargo area and stains on portions the carpet. Factory features include power windows, vacuum locks, and a mechanically operated sunroof. Cruise control and air conditioning are equipped but do not work.

The odometer shows approximately 115k miles, around 2,750 of which have been added by the seller. The factory Becker Grand Prix radio is retained and is said to function along with the power antenna. The instrument cluster illumination does not work, and an older aftermarket alarm system is not operational. A video showing more details of the interior can be viewed here.

The 3.0-liter turbocharged OM617 inline-five produced 125 horsepower when new and is mated to a 722.3 4-speed automatic transmission. New glow plugs and a new glow plug controller were installed by second-generation Mercedes specialist Omega Motors, and other work completed since the seller’s purchase included changing the oil and transmission fluid, as well as the following:

New fuel and air filters

Power steering fluid change with new filter

Coolant flush

New heater hoses, upper and lower radiator hoses and clamps

Four new drive belts

New thermostat

One new factory cut key (two keys included with car)

New transmission vacuum shift levers

New transmission shift lever grommets

A video of the engine running can be viewed above. The seller describes leakage of a drop or two of oil overnight, and the hood insulation pad is missing.

Several photos of the underbody are included in the gallery below.

The Carfax does not list any accidents or other damage, though a mileage inconsistency is noted in 2006.