Pretty sure I've posted this before, but:
H&R (and Eibach, and any other aftermarket spring mfr) have a "
one size fits most, sort of" fitment. his results in your Eibach/H&R springs being a guessing game as to what the ride height will be. If you buy them, make SURE they are specified for the wagon AND with SLS. The rear springs are completely different without SLS and for the lighter A/C/W124 chassis.
The factory Sportline springs vary based on engine and optional equipment, which is why there are a dozen different Sportline spring part numbers vs H&R's handful. The Sportline springs are specific to the exact combination of chassis, engine, and optional equipment. There are charts in the EPC (screenshots attached) which specify the spring pad to be used depending on the optional equipment and color code of the spring (red vs blue). T
The typical USA-spec .092 will end up around 70-75 "points" depending on options, which means using the tallest / #30 front spring (for example), with varying pad thickness depending on the color code. See attached screenshot. Rear spring will be mid-70's points, and #28 spring with varying pads. Good news is the #30 front spring is still available new (ignore the Backordered / Currently Unavailable BS shown on RevParts, this just means it has to come out of Germany). Bad news is the rear #28 spring may have gone NLA recently and will be more difficult to locate. Worse news, almost all Sportline rear springs are NLA now, and only a handful of other rear springs are available from MB. But, since we have the specs for these springs, they could be reproduced (same as the E60 springs).
If you use aftermarket springs, you'll end up with trial and error to get the ride height where you want it. As I've stated elsewhere, I don't recommend going much lower than 14.0" from wheel center to fender lip, on a standard 124 (non-E500E), for a street-driven car. The 036 measurements are slightly different due to the fender shape. On any normal-fender 124, I try to set ride height at 14.00-14.25" front & rear, with a full tank of fuel, and new front struts. The front ride height will gradually drop over 3-5 years as new struts slowly lose pressure. Better to set the front higher and let it settle down, vs set it low and end up with it
too low a few years later.
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