Mercedes-Benz W123 and R107 DIY

I developed the following digram for the 1975 R107 Mercedes-Benz 450SL so I would have a complete guide should anything go wrong after th...

If you own an R107 (convertible) and need either a new fuel tank filler neck grommet (seal) or a fuel filler door vacuum lock, they have bee...

With the introduction of automotive plastics in the 1970's, time is now and will continue to take its toll on these parts.  A part tha...

Final check to insure a smooth idle... The Fuel Pressure Relief Valve. It's simple, quick and just might make all the difference in the ...

A well running W123 diesel should be very smooth. Over the years I have been told "they all rattle and vibrate, they always have, even ...

If you have come this far, you either own a W123 diesel or are interested in acquiring one. In either case, there is no need to settle for ...

As our cars age, components will begin to fail and fail unexpectedly.  While driving my 1981 240D several weeks back, I lost the assistanc...