I need straight, realistic advice. The 2.6 engine in my 1993 190E
Sportline is shot--at least two bearings burned.
I'm going to keep the car--even at 110,000 miles, it's near perfect in
every other respect, and there's nothing else I like as much. Also, it
has a new auto transmission with less than 20,000 miles on it.
There are four options for replacing the engine:
1. Let the dealer do it with a new long block from Metric Motors--4
year, 50,000 mile warranty. Cost--at least $8,000.00. (Dealer will do
a short block, but says the cost will most likely be about the same, and
only 1 year warranty.)
2. Buy the long block and do it myself. Long block, with shipping,
about $5200.00. Plus whatever other parts I need--engine mounts,
gaskets, etc. 4 year, 50,000 mile warranty on long block.
3. Buy a short block and do it myself. Assuming head is OK, about
$3100.00 plus other parts and machine work on head, etc. (Warranty on
short block is 1 year, unlimited mileage.)
4. Buy used engine and do it myself. Cost--much cheaper, but many
I have very good mechanical aptitude, and am systematic and painstaking
in my work--but I haven't done any major automotive repairs since I
rebuilt an air-cooled VW 25 years ago. (Did a good job, and VW engine
was still running great five years later when sold. But obviously a
huge difference between that and a Mercedes engine.)
I've got all the basic metric hand tools, but that's about it. I'll
have to buy/rent everything else. I'll fortunately have the time to do
the work essentially uninterrupted--I figure at least two weeks. Sound
Should I even consider doing any the work myself? If so, which approach
would make the most sense?