Saleofcar.com :Mercedes-Benz

Mercedes-Benz 400-Series 420sel (1990)
for sale

Price: US $2,500.00

Description:

I am selling my 1990 420sel in good condition inside and out. Approximately 118, 000 miles. This car is my daily driver so mileage will increase somewhat.
Original engine was replaced about 18 months ago after timing chain slipped and bent the a couple of valves. The engine was replaced with one from an 420sel with similar mileage. At the time of installation, the timing chain and guides looked fine but have not taken off the valve covers recently to check if the chain needs replacement.
Other items replaced within the last year include new water pump, starter, both front brake calipers, idle control valve. New wires, spark plugs, battery and O2 sensor within the last 12 months.
Runs well and the interior is in great shape for it's age. Rear bumper could use some touch up but overall the exterior is great for the age. No rust. The previous owner must have fixed the front seat belts at some point so the leather around the anchors is not great as can be seen in one of the pictures. The wood veneer by the gearshift has cracking but is not terrible.
In the interest of full transparency, here the issues with the car:
The window regulators for both rear windows decided to snap recently so those need to be replaced. The motors are fine just the plastic regulators.
The engine recently developed a rattling noise which is likely valve lifters on the right bank. I have not taken the valve covers off to take a look. The car drives fine but the noise is very noticeable.
Antenna goes half way up but retracts without any issues.
I have misplaced one of the keys so only have one key.
Sunroof functions without any issues.
Overall rides smooth and the transmission shifts cleanly.
Heating works great but looks like the A/C may need a recharge as it is not cooling adequately over the past few days.
Tires have about 20K miles on them.

_{update: 2016-06-10}