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

SL/R129: SL 300-24 valve

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Old May 29, 2018 | 05:53 PM
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R129 300SL
SL 300-24 valve
How do you identify if a SL 300 is a 12 versus 24 valve ?
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Old May 30, 2018 | 09:06 AM
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R129 300SL
Plutoe,

I was looking for help.....not childish sarcasm
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Old May 30, 2018 | 10:54 AM
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'09 S600, (2) R129 300SLs, '03 SL500, '03 SL55
Originally Posted by topchop2
How do you identify if a SL 300 is a 12 versus 24 valve ?
The 12-valve motor is designated "M103" by Mercedes; the 24-valve "M104". The motors appear considerably different, so if you search images on those two terms and compare to your engine you should easily discern which you have.
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Old May 30, 2018 | 11:51 AM
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1995 SL500 - 2017 AMG GLC 43
Originally Posted by topchop2
How do you identify if a SL 300 is a 12 versus 24 valve ?
https://commons.wikimedia.org/wiki/F...104_engine.jpg
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