S-Class (W140) 1991-1999: 300 SD, S 350TD, 300 SE 2.8, S280, 300 SE 3.2, 300 SEL 3.2, S320, S320L, 400 SE, S420, 400 SEL, S420L, 500 SE, S500, 500 SEL, S500L, 600 SE, S600, 600 SEL, S600L, 500 SEC, 600 SEC

'96 S420 spark plug gap??

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Old 11-29-2003, 09:10 PM
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1996 S 420
'96 S420 spark plug gap??

What's the proper plug gap for a '96 S420 W140?? Thanks.
Old 12-01-2003, 04:33 PM
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CLK, ML320, 400E, 400SE
Sura...

Assuming you have the same engine (140 Chassis) V8-(119)

The spark gap is 0.8 mm (0.031 in) and the torque is 20-30Nm for flat seat gasket plugs or 10 - 20Nm for tapered plugs.

I recommend Bosch Super ... for plug brand and type.

Be sure lightly coat the threads of the plug with anti seize and the tops with Dialectic grease.

Russell

Last edited by rsmcmahon; 12-01-2003 at 04:48 PM.

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