Is the thermal conductor paste that u put under the EZL (ignition module) to mate it to the frame of the mercedes, is this the same as the household desktop computer CPU cooler paste that we use to stick the CPU fan/heatsink to the cpu to cool it down during operations? If not, where can I get some of this magic paste? I need it asap. Thx u great folks. My benz is giving me trouble again

It's heatsink paste. Maybe not what's under your CPU, but your EZL isn't a CPU. I have used heatsink paste from Radio Shack under both, with excelllent results.

throne7, it's the same thing according to the Parts Department at a local MB dealer. The dealers don't sell it though so you'll have to go the Radio Shack route.

__________________
Fred Hoelzle

Yes it's almost the same and the white liquid used for the CPU is even much better than the original Bosch one.

__________________
Master Computer Engineer, A+, Network+, MCP/MCSA/MCSE 4/2k/2k3 - Messaging, MCTS, MCITP, MCT, Brainbench, ICDL and starting Ph.D

380SE 1984 <------- Totaled by flipping accident
300SE 1988 <------- Sold
Volvo S70 2000 <---- 4 family
Opel Omega 2002 <-- 4 family
560SEC 1989 <------ Sold
560SEL 1990 <------ Sold
560SEL 1991 <------ 4 my mother
560SEL 1989 <------ Sold
600SEL 1992 <------ Current

http://search.ebay.com/_W0QQsassZkhazenzcc

When doing this make certain that the coating on the bottom of the unit itself is not compromised - I think it's supposed to be insulated from ground (the body of the car). Heat sink compound alone is not designed to do this. In the original installation of a unit the paste is held on by a thin layer of high-temp, thermally-conductive plastic; the bottom of the unit itself is coated with something (paint?). When cleaning off the compound from my spare, I went through this coating and I'm thinking about how to repair it.

__________________
86 560SL
With homebrew first gear start!
85 380SL
Daily Driver Project

http://juliepalooza.8m.com/sl/mercedes.htm

Strife, as far as I could determine the thin plastic (looks like Saran Wrap) is there to keep the heat-conducting paste from getting smeared all over the fender liner. I doubt that the plastic has any heat transfer qualities itself. What you're calling paint is actually a thin coating of the white heat-conducting paste.

__________________
Fred Hoelzle

That's alot of money sitting right there.

__________________
It is a truism that almost any sect, cult, or religion will legislate its creed into law if it acquires the political power to do so. Robert A. Heinlein


09 Jetta TDI
1985 300D

Just got the Huco Ignition Control Module replacement part, which came with small tube of white thermal grease. Can someone answer this:

Is the thermal grease applied between the ICM black plastic component and cast iron/heat sink? OR, directly to fender - between fender and ICM?

Where do I apply the grease????

Ragtopper
1982 380SL

Apply the heat sink compound to the device you're mounting on to the car body. Apply a thin, eve, coat. More is NOT better, it is worse as it will not conduct heat so well.

In reply to someone else, the EZL in the 300-24s does not need to be insulated from the car body, it is at ground voltage. It is not like the old power transistors that were at collector voltage and needed to be insulated with mica washers.

Over in the UK we started a thread about repairing these things. We believe the most common failure mode is the output devices but we don't know whether the unit can be invaded and repaired. Does anyone here know?

Does anyone have a broken EZL that they could give to an electronics wizard for appraisal?

Best to all.

RayH

Did you ever find a rebuilder for the EZL unit? I have 1987 560SL with symptoms of faulty EXL... no start condition. Was starting from complete cold, then stalling when reaching operating temp. It would then restart after sitting for hours and completely cold again. I now have a no start condition.... period.

I had that with my 300-24. It was a Bremi rotor arm. Replaced it with the 19 year old original and all was well. Replaced that with a new MB rotor.

I suppose the "no start" could indicate dead EZL but I've never had that. As discussed in PMs, get a spare!!!

R

$29.99 from china. 30 year newer tech. say your old aluminum box for the showcase.

I used a sheet of plastic type film i removed from inside the screen of an old lap top computer cut to fit the rear of the EZL along with heat sink paste from Maplins sorry to say that Maplins is no longer with us in UK And for other members reading this post .Please pick UP another EZL as a spare these EZLs are costing an arm and a leg over in the UK with prices going up every day .