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Old 12-05-2003, 03:33 AM
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Join Date: Mar 2003
Location: walnut ca.
Posts: 16
pushing 300e

just wondering if anyone could give me information on this car I bouught recently, 92 3ooe 3.0 with 150k this will be my daily driver after I sell both my cars. I am a honda technician working on hondas all day, the mercedes amazes me at just about everything, its solid,handles well and braking is tight. I had a 300e which I bought from my uncle 6 mos ago for a good price which needed a head gasket done, 2 days after I finished ,te car was totalled,my intentions where to sell the car after the headwork was done, but ended up loving it! so decide to buy another one.what parts to replace or what should I look for a car this age from preventing it to shutdown completely in traffic. I know it has a failsafe mode, feel like I cant push this car in traffic! problems found so far visually are,the obvious headgasket, atf cooler lines, steering box,flex disc,leaking rear main,rear shocks,belt tensioner,belt,pulleys,etc. the list goes on!I've ordered the cds online, any information would be appriciated,thanks!
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Old 12-05-2003, 08:07 AM
Join Date: Mar 2000
Location: Gainesville FL
Posts: 6,844
You should read up on EHA current. It represents ALL of the electronic correction to an otherwise hydro/mechanical fuel metering system.

The fail safe/limp home characteristics of this system are the best. When Mooney (sp?) wanted to use a Porsche Carrera motor in one of their planes they went backwards in fuel design and installed a K-jet fuel system instead of the Motronic that the Carrera came with.

The EHA when disconnected leaves the car with a system that runs perfectly warm. Things that will stop you are fuel pump/fuel pump relay, crank sensor, coil, and possibly some defect in the EHA control (it will work fine without it but there are ways it can shut you down - disconnect it when hot and evaluate).

There are another group of things that cause the car to die at idle, but to shut down while driving usually is one of the above.
Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician
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