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

SL/R129: The Engines, DOHC? SOHC?

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Old Aug 24, 2005 | 12:18 PM
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The Engines, DOHC? SOHC?

Hey guys,

I've always known that Mercedes V8s are all SOHC, but how about the R129s? Cause there was one site whereby this guy put in an R129 engine into his 124 and claims that it's DOHC. Is it? Only you R129 people can confirm on this. I'm a 190E owner.. thought an engine like that would do great on my car!

Thanks!
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Old Aug 24, 2005 | 12:27 PM
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things with and without wheels
I owned a 190 about 10 years ago and i do remember that sport models came with twin cams
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Old Aug 24, 2005 | 01:45 PM
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it is a dohc................im 90% positive.
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Old Aug 24, 2005 | 01:47 PM
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100% positive,


Road and Track, Mercedes benz SL,SLK,CLK portfolio 1990-2003

DOHC 4valv/cil. V8

MArk
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Old Aug 24, 2005 | 02:36 PM
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I am pretty sure that from 1999 and up, the SL500 had/has SOHC engines. Something to do with lower costs, better emissions and better fuel efficiency I suppose.
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Old Aug 24, 2005 | 04:24 PM
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'03 CL500,& '18 GLS63. Gone: '83 500SEC,'99 500SL,'07GL450
PCVIEWER is correct. My 1999 SL500 has a SOHC engine along w/2 spark plugs and 2 coils per cylinder.

Last edited by reddog; Aug 24, 2005 at 04:27 PM.
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Old Aug 24, 2005 | 05:15 PM
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right, 90-97 was dohc with 315hp. 98-02 was s.o. with 302hp. so every one is right
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Old Aug 24, 2005 | 06:31 PM
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2 SL with every Brabus mods available & Class A competition sound system
Originally Posted by RedMongoosE
right, 90-97 was dohc with 315hp. 98-02 was s.o. with 302hp. so every one is right
Sorry........everybody is right but you wrong RedMogoose..........90-92 dohc with 322hp........
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Old Aug 24, 2005 | 07:03 PM
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you knew what i ment!!!! haha


Mark
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Old Aug 24, 2005 | 09:34 PM
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Hey Thanks guys for clearing that up.... Always thought the DOHC engines are way better than SOHC engines so if ever change my car engine would know from which model to look for. Too bad Mercedes don't make anymore DOHC engines cause already BMW and Audi is coming out with DOHC engines for their sports models with horsepower per litreand very high RPMs. Mercedes? Bi turbos and Kompressor.... come on!! Always preferred NA. But still am a Mercedes person!
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Old Aug 26, 2005 | 11:58 AM
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From: So. Cal.
SL500 2001 Formula 1 Edition;
MB says it is SOHC

Check out this website, it shows lots of useful info:


http://www.mbusa.com/brand/container...34567&menu=7_6

including that at least for 2001, it was SOHC. You can check out the other years on there too.
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Old Aug 27, 2005 | 11:47 PM
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Hey thanks for the site. Helps! Looks like their DOHC 5litre engines had better power compared to their SOHCs. Should have kept on using them tho. Too bad not anymore.
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