The H&R 52724 is a set of progressive-rate sport lowering springs for the W210 generation of the Mercedes-Benz E-Class, covering the E420, E430, and E55 AMG in non-4WD form. The springs are made from 54SiCr6 spring steel, shot-peened, and produced in Germany. They lower the car about 1.3 inches in front and 1.25 inches at the rear, which tightens the fender gap and lowers the center of gravity for less body roll. Compared with a cheap set of generic springs, the German-built steel and progressive rate suit a daily driver that sees occasional track days. Searchers often look for W210 E55 sport springs, 1996-2002 E430 lowering springs, and non-4WD H&R springs.
Fitment is the detail to get right. Ride height depends on the factory rubber shim perches, which vary in thickness from 8 to 23mm, and on whether the car has a factory sport suspension, so the final drop may differ from the stated figure. Installation is best left to a shop with spring compressors and an alignment rack, since professional installation is recommended and a suspension alignment will be needed after installation. Owners on user forums also commonly report that the front can sit too low with the wrong spring pads, so plan on checking pad size and ride height after the first install.
No. This part is listed for non-4WD W210 cars only, so confirm your drivetrain before ordering.
The manufacturer's stated figures assume a typical setup. Factory shim perches vary from 8 to 23mm, and ride height can change with optional equipment or a factory sport suspension, so confirm with the manufacturer for your specific car.
This is a moderate-to-advanced job. You will need spring compressors, a way to safely support the car and suspension, and typically a wheel alignment afterward. Owners on user forums report that the stock shim perches must be considered, since the correct pad size can change how low the front sits. One owner on a forum ran standard W210 pads all around and cut half a coil in the rear, then needed a taller pad for the front because it was too low. Check tire and fender clearance after installation, and if you plan to trim coils, confirm the change with the manufacturer first.
