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

SL/R129: timing chains

Old 10-25-2007, 02:13 AM
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1986 ,300sdl, 2002 500ml, 1991 500sl and a 1957 190sl
timing chains

helo everyone
i have a 199 500sl that has 126000 kilomters on it. i have changed the oil every 3000 miles sense 1992 when i bought the car. anyone know if the cam chain followers should be changed now along with the chains. all is well but i worry the followers might get brittlewith age
thankyou for your help
Old 10-25-2007, 05:21 PM
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2003 SL55
Hi,

I have a 1991 500SL with 202K miles on it and had my timing chain break at about 155K.

Fortunately, I had just started the car and heard a strange noise so I immediately shut it off and had it towed in to my mechanic. He said I was lucky I was not driving it at the time as serious damage could have occured.

Also, if I remember correctly, I think MB states somewhere in their literature for the SL that the chain should be replaced before 150K...
Old 10-25-2007, 09:59 PM
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Originally Posted by EsEl
Hi,

I have a 1991 500SL with 202K miles on it and had my timing chain break at about 155K.

Fortunately, I had just started the car and heard a strange noise so I immediately shut it off and had it towed in to my mechanic. He said I was lucky I was not driving it at the time as serious damage could have occured.

Also, if I remember correctly, I think MB states somewhere in their literature for the SL that the chain should be replaced before 150K...
Is the SL500 motor an interference engine?
Old 10-26-2007, 10:31 AM
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1997 SL500, 1994 Impala SS on steroids, 2007 MV Agusta Brutale 910R
Originally Posted by AMGSport
Is the SL500 motor an interference engine?
My mechanic says so, and I have no reason to doubt him, but I dont know for a fact.
Old 06-29-2014, 01:26 PM
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SL 550
When to replace timing chain ???

I've searched the whole forum, but can't find a definite way to tell when to replace the timing chain, except for "regularly scheduled maintenance". Some say a clanking sound like this:
develops, only one says theirs broke. Can I wait until it starts sounding different ??? Have 128K miles, running fine...

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