Turbo Diesel Inline-6: 1986 Mercedes-Benz 300SDL W126


Most of the aging Mercedes-Benz 80s/90s oil burners driving around the streets of SoCal have the inline-4 or inline-5 engines; particularly of note is the 3.0 liter OM617 found in the W123 platform with the 300D badge on the back. However, a 6-cylinder version of that same engine called the OM603 was not as reliable as the OM617 but did provide more power (143 horses) and torque (195 ft-lbs) with the aid of a small turbocharger. Today’s example looks cheap, and it seems like a good deal if it isn’t rusty. Find this 1986 Mercedes-Benz 300SDL W126 offered for $1995 in Las Vegas, NV via farcebonk dieselplace.

From the seller:
1986 Mercedes 300SDL turbo diesel
$1,995
Listed a day ago in Las Vegas, NV
Details
Condition
Used – Fair
Well maintained classic Mercedes. 6 cylinder diesel with turbo charger (original). My daily driver. Leaving town so selling.Engine is strong, and fast, cruises beautifully @80+ mph w regular drives to San Diego and back. Car runs well but has slow PS & oil leak. (I have new gaskets). Car will need attention by a handy person/mechanic to keep going another 200k.
Driver Seat Cover and stereo head unit NOT included – need to add your own.
I have HUGE box of expensive hard to find spare parts incl, spare oil pan, gaskets, filters, etc. Recently Replaced starter, battery, tires, brakes M/S, AC compressor, injectors, engine mounts, shocks, etc. Has tow hitch, keyless entry. Sad to sell as this is a tank and feel safe driving.
Car is not pristine as some rust starting on sunroof corner and rear trunk, and some age wear/tears on seats, but overall impressive. AC worked until condenser leaked, have NEW condenser in box for free as part of deal. And NEW in box backup radiator.
Cash only, no trades, if ad up it is avail. Contact me ONLY if scheduling to see. In North Vegas. This is priced to sell. Viewable from Apr 10 ->


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It was the 350sdl that had the reputation for catastrophic head gasket failures so maybe this one is a safe bet. Speaking from experience, the W126 is a great chassis and parts are cheap but noobs should choose the OM617 engine.