Diesel shopping tips, please
... If wanting to drive a 35 year old rwd diesel car in the winter is sense

I'm looking at getting an older diesel wagon, has to be a station wagon. EDIT: probably 80's om617 with the turbo era cars.
Living in Maine they're all pretty rusty, but there are some southern cars for sale from time to time.
Since I've always wanted one of these cars, but know little about them, what are some things I should be looking for when I inspect the car and take it for a drive?
Last edited by chrisgt; Sep 25, 2015 at 10:42 AM.

The w124 chassis came in a wagon, and was one of the best cars MB ever built.
Check to see that everything works - AC, all the gizmos, etc, feel for rust under the rocker panels and the rear fender and wheel well - that's where it always pops first.
You will absolutely have to use fuel additive because those older diesels were not designed for ultra low sulphur diesel, and it is the fuel that is solely responsible for lubricating the fuel pump.
Anything to look for with the transmission? I'm not much of an auto trans guy, and they're basically full of blag magic that either works or gets swapped with a 5 speed. Which is easy in my subaru world, but as I understand, not an option here.

You can check the trans oil when you test drive by feeding narrow hose down the dipstick/filler tube and checking to see if the oil is black. If it's black it hasn't been serviced in a long time, and the transmission may be compromised.




The w124 chassis came in a wagon, and was one of the best cars MB ever built.
Check to see that everything works - AC, all the gizmos, etc, feel for rust under the rocker panels and the rear fender and wheel well - that's where it always pops first.
You will absolutely have to use fuel additive because those older diesels were not designed for ultra low sulphur diesel, and it is the fuel that is solely responsible for lubricating the fuel pump.
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I recently went on a search for a used car for my daughter (sub $3000) and after viewing numerous rusted hulks that shouldn't be on the road, I extended my search to the suburbs of DC (about 2 hours from us). My rationale is that the area has plenty of money. Owners of such cars typically park their cars in garages, use dealer service and can afford to maintain them properly. When many of these residents are looking to buy a car, they are not likely looking at used cars.
In the end, I found my daughter a 2004 Volvo S60 2.5T with 160k for $2100. Dealer serviced, rust, dent and scratch free, heated garage, new tires and a recent $2800 service (shocks, struts, tie rods, brakes, etc). The car is in great condition for the year and price. It was a 2 hour drive to pick it up and I got to indulge in some Sea Food while in Annapolis.
No mater what you decide on, consider looking in way outside your area. I can't offer much in the way of advice on which diesel MB to select.
Good luck.
OJ
I recently went on a search for a used car for my daughter (sub $3000) and after viewing numerous rusted hulks that shouldn't be on the road, I extended my search to the suburbs of DC (about 2 hours from us). My rationale is that the area has plenty of money. Owners of such cars typically park their cars in garages, use dealer service and can afford to maintain them properly. When many of these residents are looking to buy a car, they are not likely looking at used cars.
In the end, I found my daughter a 2004 Volvo S60 2.5T with 160k for $2100. Dealer serviced, rust, dent and scratch free, heated garage, new tires and a recent $2800 service (shocks, struts, tie rods, brakes, etc). The car is in great condition for the year and price. It was a 2 hour drive to pick it up and I got to indulge in some Sea Food while in Annapolis.
No mater what you decide on, consider looking in way outside your area. I can't offer much in the way of advice on which diesel MB to select.
Good luck.
OJ
Interesting story. Your a good Dad. John.
I've heard really good things about the om617, and really not so good things about the om603 and its cousins.
Is there anything specific I should ask about in terms of maintenance? Any tools in specific I should bring with me, or any spare parts I should buy before I take on a road trip in a 31 year old car I know nothing about... I can turn a wrench, my friend has a smartphone. So as long as we're prepared with the proper tools/parts and nothing catestrophic happens.... I've done dumber roadtrips, but in cars I'm familiar with.
He also said it has a torn CV boot, so I'd probably just get one of those glue over the top deals to drive it home so I don't have to worry about ruining the CV axle.
Finally, the AC compressor was recently replaced and the system recharged, but the pump whines. He said apparently that's because it wasn't installed correctly? Not really too worried on this one.
Mostly wondering if vacuum leak is the cause of the trans shifting hard, or if there's a bigger issue there.

Also he said it recently started running bad over about 50 and that the hand primer on the lift pump did nothing. So he's replacing the lift pump. If that doesn't fix it, I'm not buying the car. If that repairs the running issue I'll be picking it up next weekend.



