i went to the wrecking yards yesterday, i came across a fairly nice 420SEL. i pulled many parts. the two things that caught my eye were the EZL and the fuel pump relay, the two best things i thought would be good to have in the car as a spare. well i wanted to test the EZL just to make sure it worked and was ok. i installed it and right off the car had more power and ran smoother. so much for a spare, i wanted to keep this one in, this car has the R16 and i have it set for optimum fuel since all i use is chevron 92. i havent yet had a chance to compare the part numbers, but the one from the 420 looked newer and was made by Bosch, whereas the other was seimens. has any one ever seen this before? or have any comments they would like to share?

Hey Carson356, I just bought a 500 sel euro (it's my first mercedes) and it needs shock pretty badly, as it has a kind of bouncy ride. I have no idea what the original engineered ride is supposed to be like, but I generally prefer a stiff sports car like feel. I'm wondering if the stock shocks will fill the bill or if I should go for something else? Any advice?

go with bilstein sports or hd.

tom w

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

i agree, i have the heavy duty bilsteins, much better ride in my opinion

Indeed, the HD's are the way to go. They don't make sports for the 126 chassis unfortunetly.. I'd also Strongly recomend you install a set of H&R's..best bang for the buck as far as 126 mods go. The H&R's coupled w/ HD transforms the handling ability of these cars.

As for EZL's, the later ones are made by Siemens, the earlier by Bosch if I'm not mistaken. Funny your car runs stronger w/ the 420 EZL as the argument has been made that the Euro EZL's are more aggressive then their US counterparts. I'd be curious as to your inital advance (0-2500RPM) is..

Jonathan

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Jonathan Hodgman
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i havent messed with the r16 since i set it for optimum fuel, when i go back to work, i will see what the initial timing is at.

The only dumb question is one not asked: what is a EZL?

EZL= Engine computer..the one located on the drivers side inner fender well

Jonathan

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Blue Ridge Mercedes
Jonathan Hodgman
http://www.blueridgemb.com/
Enthusiast Service, Restoration & Tuning.
Follow Us on Facebook!
Located in the Atlanta area
Specializing in all pre and post merger AMG's including Hammers and DOHC M117 engines.
Mercedes Repair Atlanta

here is a picture of one

I never figured out what the acronym "EZL" stands for, but they are also called Ignition control module.

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Paul S.

2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".

Hey Ray,

Do you own your own shop in the San Diego area?

I'd like to pop in one day if I happen to be in the area.

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Paul S.

2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".

it is something like (E) electronic (Z) timing (L) not sure, what the L value is,

i don't own the shop, i just work there. i am off for a while with a hand injury

How has this turned out? Did you leave the 420's EZL in? I've been doing a little reading on this and it seems that the 420 EZL has a little more advance than the 560's EZL - although what I read was a static comparison at two rpm/loads. Who knows what goes on in the internal mappings. I've been wondering what a 420 EZL would do in a 560...

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

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

it has been in there since i started this thread, and is still working fine. car runs great