190D engine swap - PeachParts Mercedes-Benz Forum

George301 · #1 09-01-2007, 10:09 AM

Hi guys. It seems I should have found some info on this, but I may be using the wrong search terms.

I was looking for information on putting a turbo diesel engine in non-tubo 190D, or even a gas 190 (but I think that would be much more involved?). I would apreciate any insight on this. As i say, I figure there must be some info on this somewhere. Thanks.

George

t walgamuth · #2 09-01-2007, 11:32 AM

Best to find a wrecked car with the same body as yours and the engine you want and switch over everything that is different. This probably includes (I have upgraded 123s but not 190s) the radiator, speedo, driveshaft and rear end. If it is an automatic the tranny probably is different too.

Good luck.

Tom W

#3 09-01-2007, 12:54 PM

I wouldn't worry too much about the rear end or speedo. They are all fairly close together and if you use the 5-speed manual you highway RPMs will be nice and low no matter what.

I agree with t walgamuth though, find a wrecked car. That way there will be no guesswork as to what you need or where everything goes.

Don't forget that some states make it a hassle to convert a car from gas to diesel because of the gassers emissions testing requirements.

t walgamuth · #4 09-01-2007, 02:11 PM

The fuel lines will be different on a gasser too.

Tom W

bdub · #5 09-01-2007, 10:18 PM

anyone know where to get a right side fender for a 87 190d turbo, the one with the slits. thanks

George301 · #6 09-03-2007, 09:48 PM

After fuurther research, I see the gas to diesel swap is not going to work, but I am still curious how common it is to put a turbo engine in a 190D that was not turbo to start with? Are there alot of these out there?

What I have learned thus far, (in case others come across this searching for info on engine swaps or conversions). Seems that with a car that has not aged out (25 years?), you can put an EPA approved engine into it from that model year or newer, but the EPA will not allow you to convert a gas car to a diesel, unless that chassis and year has been approved for a diesel engine by the EPA, if you follow.

More general info here

http://www.epa.gov/compliance/resources/policies/civil/caa/mobile/engswitch.pdf

This is just what I was able to come up with after a little searching, I am sure there are many ins and outs I don't understand.

Thanks for any additional info.
George

#7 09-03-2007, 09:57 PM

Quote:

Originally Posted by George301

Seems that with a car that has not aged out (25 years?), you can put an EPA approved engine into it from that model year or newer, but the EPA will not allow you to convert a gas car to a diesel, unless that chassis and year has been approved for a diesel engine by the EPA, if you follow.

You could still do it. You would just legally be limited to an 84-87 W201

Quote:

The most common engine replacement involves replacing a gasoline engine in a light-duty vehicle with another gasoline engine. Another type of engine switching which commonly occurs, however, involves diesel powered vehicles where the diesel engine is removed and replaced with a gasoline engine. Applying the above policy, such a replacement is legal only if the resulting engine-chassis configuration is equivalent to a certified configuration of the same model year or newer as the chassis. If the vehicle chassis in question has been certified with gasoline, as well as diesel engines(as is common), such a conversion could be done legally.