Mercedes-Benz E-Class Rear Springs: Specs, Fitment & Common Faults
On AIRMATIC cars, there's genuinely no conventional coil spring at the rear at all — an air spring does the job instead.
Illustration for editorial purposes
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Steel Coil or Air Spring — Confirm Which Your Car Has First
Genuinely important to establish before ordering: standard models use a conventional steel rear coil spring, while AIRMATIC-equipped cars replace it entirely with an air spring integrated into the rear shock assembly — there's no separate steel coil to order on an AIRMATIC car. The existence of genuine aftermarket conversion kits (AIRMATIC to complete strut-and-coil-spring assemblies) confirms just how different these two systems really are, rather than one being a stiffer variant of the other.
Mercedes-Benz E-Class Rear Springs: A Part That Fails Quietly, Then Suddenly
A conventional rear spring often sags gradually for months without an obvious symptom beyond a slightly lower ride height, then fails suddenly at the coil's end with an audible clunk. On AIRMATIC cars, a failing air spring more commonly shows up as a dashboard suspension warning and the car settling to a lower ride height overnight as air leaks out.
Mercedes-Benz E-Class Rear Springs: Watch: Replacing It
This video is of an earlier generation of the same model; the job is similar but the spring seats and fixings can differ slightly.
OEM Part Number: confirm via VIN — rear coil springs (aftermarket) KYB RA5967 / Sachs 992386
| Rear coil springs (aftermarket) | KYB RA5967 (lowered, 350 mm); Sachs 992386 (lowered, 349 mm); Suplex 19560 (lowered, 349 mm); Eibach R23278 (standard, 356 mm) |
|---|---|
| Genuine (OE) numbers quoted | None quoted in the catalogue listings — the genuine spring varies by engine, suspension type and body style, so order it against your VIN |
| Standard steel-spring, right | Genuinely a different part number from the left-side spring — confirm side before ordering |
| Standard steel-spring, left | A genuinely different reference from the right-side spring above |
| Higher Ground Clearance Springs (factory option), where fitted | A genuinely different, taller spring from the standard-trim version — a distinct factory option code, not a standard part |
| AIRMATIC, all variants | No standalone coil spring exists — the air spring is integrated into the rear shock assembly; see the Rear Shock Absorber guide for the correct part |
Always replace steel rear springs in pairs — a single new spring paired with an old, sagged one on the other side creates an uneven ride height and handling bias.
Mercedes-Benz E-Class Rear Springs: What It Does
On standard cars, the rear coil spring supports the weight of the car's rear end and absorbs the initial impact of a bump, working alongside the shock absorber rather than replacing its function. On AIRMATIC cars, an air spring performs this role instead, with the added ability to adjust ride height automatically. A sagged or broken steel spring lowers ride height, can affect headlight aim, and in severe cases is an MOT failure item.
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Mercedes-Benz E-Class Rear Springs: Warning Signs, DIY Difficulty & Aftermarket Advice
These are the same regardless of make or model — see our full Rear Springs Guide for symptoms of a failing spring, confirming fitment against your VIN, and OEM vs aftermarket guidance.
More Mercedes-Benz Rear Springs
The same part, covered across other Mercedes-Benz models.