LSD?
I saw one for sale on ebay for a later model W124 (for a rediculous amount of $), and I'd like to track down a LSD at the local salvage yard for mine.. but usually the brakes are stuck on and I can't spin the wheels to check them. Are there any id numbers to look for anywhere on the car that indicate it came with a LSD?... by any chance are all of these cars equipped with them? I'm new to mercedes cars...
The LSD functionality is encased fully inside of the differential and the 190e differential is not compatible with the W124.
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On the same note, both times I bought 16 valve 190e LSD's, I must of went trhough at least eight of them, as the clutch's had worn down so badly that the diff was no longer a LSD, so chances are good if you did buy one, it would be worn down and need rebuilding.
Also, you can throw out the idea of retro fitting a ASD, its cost prohibitive.
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ASD is not that simple to retro fit to non ASD equipted vehicles. There are wheel sensors, a control module and the hydraulic system itself.
I don't know of anyone who has retro fitted a ASD to a non ASD equipted vehicle.
If you already have a ASD then your good to go, assuming of course the clutch's are not worn out turning it into a open diff (common problem)
In everyday use on typical roads, such a situation is very unlikely, and so a normal differential suffices. For more demanding use, such as driving in mud, off-road, or for high performance vehicles, such a state of affairs is undesirable, and the LSD can be employed to deal with it.
By limiting the velocity difference between a pair of driven wheels, useful torque can be transmitted as long as there is some friction available on at least one of the wheels.



