I just removed the EZL Ignition Module from my 92 300CE and took off the old white paste from the bottom. I then replaced it with a coating of a silicone heat sink paste and replaced the module. I did disconnect the battery ground before doing this job. Actually, it only took a few minutes, removing four connectors and the vac line from the module and 3 nuts on the mounting bolts. Some of the old white paste was dried out a bit, but otherwise all seemed in order. I replaced it all anyway. Seems like anything you can do to avoid having to replace this inordinately expensive part -- $1200 - $2700 ??, is worth doing. (Per a comment from M.B. DOC, sometimes other modules like the coil can cause the Ignition module to fail, if the coil develops high resistance?! I don't know if I will replace the coil now; it is a $92 item from our parts group ... might be worth it?) Ben Carter

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Ben Harrison Carter
1999 Mercedes ML320 87K
1992 Mercedes 300CE 89K
1995 Corvette 29K -- Sold Dec 09
1989 Mercedes 420SEL 99K -- (Sold 4/08)
1968 Mercedes 230S (106K) (Sold 9/06))
1976 Mercedes 450SEL 130K (Just sold - 06)
1961 Mercedes 220Sb (sold years ago)