My 1988 230E W124 has almost 400,000 kilometers on it. The engine block has been refurbished once and is still in good condition. However, the KE-Jetronic (CIS-E) FI system is no longer in good health.

I examined the cost of rebuilding it and discovered that it is quite expensive, as it has many components, such as fuel regulators, fuel pumps, injectors, distribution unit, fuel pump relay, ECU, and so on.


I've decided to discontinue the use of the CIS-E system. And in my area, LPG is far less expensive than gasoline. I'm thinking about removing the CIS-E and converting the engine to run entirely on LPG.

This necessitates the removal of all gasoline injection components (parts listed above) and the addition of the fuel tank, with the LPG tank installed in lieu of the fuel tank. LPG injectors will be installed in place of fuel injectors.

Has anyone tried it before? Is it worthwhile?

I have no plan to sell this car because it'll be my forever car.