SL-Class (R129) 1990-2002: SL 280, SL 300, SL 320, SL 500, SL 600, SL 60 AMG

SL/R129: cylinder firing order

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Old Oct 27, 2014 | 08:26 PM
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lector's Avatar
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From: Panama city FL
1997 sl500 83 Elcamino 05 Caddie
cylinder firing order

Ok folks 1st silly Q. 97 500sl r129
I figure after sitting so long it's time for a real tune up.
BoshF8dc4 plug, Yes ?
I have the firing order @ 15426378 is this right?
What is the cylinder order?
I was told not to use Plat. Plugs Is this a rule of thumb or a good reason?

Never mind I found the answers.

Last edited by lector; Oct 28, 2014 at 05:25 PM.
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Old Oct 29, 2014 | 01:21 PM
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From: Saint Augustine, FL
1998 SL500
This will help:



The engine was designed (combustion chamber shape, swirl paths, etc.) to use conventional plugs. It is quite likely modern single platinum fine wire plugs would work as well, however they are not what the engineers had in mind...
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Old Oct 29, 2014 | 05:29 PM
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From: Panama city FL
1997 sl500 83 Elcamino 05 Caddie
Thank you very much. It strangely resembles my S/B ford
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