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  #1  
Old 01-20-2000, 09:22 AM
Hunter
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Was traction control or limited slip diff an option on an 89 420SEL? If so how can I tell if I have either one? Thanks...
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  #2  
Old 01-20-2000, 07:26 PM
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I'm fairly certain traction control wasn't available as yet. AS to whether you have a limited slip differnetial, try this: elevate both rear wheels (e-brake off, front wheels chocked), put it in neutral, and spin one rear wheel...does the other go in the same direction? If so, you have a limited-slip diff.

By the way, if you had traction control you'd have a very annoying yellow triangle illuminating on your dash any time you started to have fun...

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[This message has been edited by Michael (edited 01-20-2000).]
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  #3  
Old 01-20-2000, 10:14 PM
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I don't think I have seen the ASR on anything older than 91. The specail diff was in all of the 560's. I don't think that I have seen them in the 420's/

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  #4  
Old 01-21-2000, 09:10 PM
JEYUK
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quote:
Originally posted by Hunter:
Was traction control or limited slip diff an option on an 89 420SEL? If so how can I tell if I have either one? Thanks...


I HAVE EURO 83 500 SE WHICH CERTAINLY HAS LIMITED SLIP DIFF.....SO I PRESUME LATER YEAR 420 MIGHT WELL HAVE.
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  #5  
Old 01-26-2000, 07:36 PM
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I have a 87 420 SEL, and believe limited slip diff (not traction control) was an option on the 420 SEL and standard on the 560 SEL. I haven't seen a used 420 SEL advertised with limited slip...unless the current owners have it and don't know it.
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  #6  
Old 01-26-2000, 08:39 PM
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The only US spec cars in the 80's with limited slip were 560's & 190E 16V's. Limited slip was availible on many(most) euro versions. Most all cars w/limited slip have warning tag to use only special fluid.
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  #7  
Old 11-12-2002, 11:20 AM
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Do ALL 560SEL's have limited slip?

The reason I ask is that my '87 560SEL does not behave as if it has limited slip...what do I mean by this? Well at this time of year in New Jersey, wet leaves are a constant hazard on the road. A few times I've started off from an intersection where one tire was on leaves and one on bare pavement. If I hit the gas too hard, the one on leaves (usually the right) spins like crazy and I pull forward much more slowly than normal.

Could I be without limited slip or could the differential be malfunctioning in some way? How can I tell?

jlc
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  #8  
Old 11-12-2002, 10:43 PM
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Hi Jeff Limited slip and traction control are two different things! Wet leaves are beyond the capabilities of limited slip diff's. Your diff is fine. Drive carefully!
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  #9  
Old 11-12-2002, 11:04 PM
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Just for clarity, I'm sure what Mercedes calls limited slip differential, is what the Ford / GM / Chrylser called posi-traction.
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  #10  
Old 11-13-2002, 11:28 AM
Fimum Fit
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Partial change in subject

Are there any M-B limited slip units or complete limited slip third members which will fit into a W123, specifically an '85 300TD? Back when I had just gotten my driver's license, my dad bought a brand new '57 Mercury with Equa-Lock (and the Lincoln Mexican Road Race 368 motor) and even though that was a wimpy limited-slip compared to GM's Positraction, I have never since been really happy in a rear-driver without some form of limited slip or Detroit Locker rear end. It's absence is the item which irritates me the most about my old diesel.
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  #11  
Old 11-13-2002, 11:13 PM
fahrgewehr
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I have a 90 300SE, and it has limited slip. I never would have thought so, but I had someone drive in the snow while I pushed and both rear wheels were spinning. Am I right here, or was I seeing things?
Mike
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  #12  
Old 11-14-2002, 09:44 AM
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Again! the only US cars(last 20 years) that had limited slip are the 560's & the 190E 2.3 16V. IN europe limited slip was offered on many cars. THE W123 chassis NEVER had limited slip.
Benzmac is correct, ASR didn't happen until 1991.
4-Matic came out here in 1990 & ASD came out in 1991 on lower HP cars & diesels.

With modifications the 16V limited slip WILL fit into a W123 chassis!! I have done several for myself & a friend.
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  #13  
Old 11-14-2002, 10:15 AM
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MBDOC: Can you tell us more

about the nature and extent of the modifications needed to put a 16V 3rd member into a W123? My old rear end is rather clunky after 324500 miles anyway, so I might look in the recycling yards for a 16V unit to replace it if the modifications don't require a lot of machine shop work.

Or did you mean that a 16V differential could be modified to fit a W123 case?
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  #14  
Old 11-14-2002, 06:18 PM
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The limited slip ring gear carrier can be adapted to fit the W123 chassis case!
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