oscargav, a new ignition control module (EZL) from your local MB dealer will cost around $2,500. When I needed one for our daughter's 1991 300CE the MBUSA parts system showed they were backordered. The Parts Department supervisor realized the 300SL (104 engine) uses the same ignition control module, and one was available.

I tried unsuccessfully for many months to locate a used ignition control module from various salvage yards. Perhaps you will have more success. Be sure the heat-conducting paste is on the back of any ignition control module you install to prevent premature failure. Also, it's important to maintain the ignition system components (distributor cap, distributor rotor, spark plugs and ignition wires) to prevent premature failure of the ignition control module.

Before going to the trouble and expense of buying a new/used ignition control module it would be best to try a borrowed one to confirm that is the problem. Our local MB dealer diagnosed that the one in our daughter's car had failed. Not sure if the average indie has the diagnostic equipment or knowledge to do the same.

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Fred Hoelzle