This 1989 Mercedes-Benz 420SEL shows Illinois registration from new and 68k miles on the odometer. The car was reportedly a one-owner example prior to the seller's acquisition. Finished in Pearl Grey Metallic (122) over Blue Leather (262), power is provided by a 4.2-liter V8 mated to a four-speed automatic transmission driving the rear wheels. Equipment includes power-adjustable front seats with memory, a power sliding sunroof, automatic climate control, cruise control, headlamp washers, and a refurbished Becker Grand Prix head unit. Recent service includes all new drive belts, new tires, new battery, two new Bosch fuel pumps, an AC recharge, new air filter, differential oil flush, new spark plugs, new guide rod bearings, and an oil change. This 1989 420SEL is now offered for sale in Illinois by the current owner with the original manufacturer’s literature, partial service records, spare tire and tool kit, a clean Carfax report and a clean Illinois title.

This long-wheelbase sedan is finished in Pearl Grey Metallic (122) with contrasting lower body cladding separated by a thin chrome beltline which continues to the front and rear bumpers. Exterior features include a power tilt/slide sunroof, an automatic antenna, headlamp wipers, a heated rear window and a power passenger-side mirror. The seller notes some rock chips commensurate with mileage and a full paint corrrection was performed in preparation for the sale. 

15” Gullideckel wheels are fitted with a set of new Continental Control Contact A/S tires measuring 205/65. A full-size spare can be found mounted below the trunk floor along with the original tool kit and factory jack. Four-wheel anti-lock disc brakes are standard equipment with ABS. The car recently received a new passenger front brake caliper.

The cabin is trimmed in Blue Leather (262) and features matching blue carpets, floor mats, and a dashcap. Zebrano wood trim accents the center console, dashboard and door panels. The wood trim has been previously replaced around the shifter. Both front seats are fully power operated and feature two-position memory for both driver and passenger. Additional interior equipment includes automatic climate control, cruise control, power windows, and an original Becker radio which has been recently refurbished by Becker. The AC was recharged in preparation for the sale. 

The leather-wrapped steering wheel frames analog instrumentation including a 160-mph speedometer, a 7k-rpm tachometer, an analog clock and gauges for fuel level, economy, coolant temperature and oil pressure. A digital outside temperature sensor can be seen mounted centrally along the row of warning lights. The six-digit odometer currently shows just over 68k miles from new.

This W126 is powered by a 4.2-liter V8 engine which is factory rated for 201 horsepower and 228 lb-ft of torque. Power is sent to the rear wheels through a four-speed automatic transmission. In preparation for the sale, the seller has installed two new Bosch fuel pumps, new air filter, a new battery, new tires, an AC recharge, differential oil flush, all new drive belts, and performed an oil & fliter change. Service records are included in the sale. March 29, 2025 update: new spark plugs have also been installed along with new guide rod bearings. 

This 420SEL was purchased by its first owner in Illinois where it has remained since new. The Carfax report shows no accident or damage reports. This W126 is now offered for sale by the current owner with the original manufacturer’s literature, partial service records, a clean Carfax report and a clean Illinois title.

The seller has included the following video: