Good looking car there. I like the simplicity of the 5 speed and Naturally Aspirated 602 engine.

Have you tried using the Mercedes Electronic Parts Catalog (EPC)? By entering the VIN#, you should be able to determine what the correct factory parts were for the original installation.

My guess for the spray under the bonnet is that you have a leaking power steering pump. (Just a guess). Will there be any sort of recognition for a correct guess?

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'93 190E/D 2.5 Turbodiesel 5-speed (daily driver)
'87 190D 2.5 Turbo rustbucket - parts car
'84 Dodge Rampage diesel - Land Speed Record Holder
'13 Ram 2500 Diesel
'05 Toyota 4Runner