Mercedes-Benz E-Class Tail Lights: Specs, Fitment & Common Faults

A genuinely useful finding: some models are fitted with desiccant drying packs to combat condensation, though this is explicitly a workaround rather than a cure — plus a temporary hairdryer fix for driving out trapped damp air.

Illustration for editorial purposes

OEM Part Numbers

Accuracy note: we weren't able to verify a confident Mercedes-Benz E-Class tail lights part number at the time of writing. Please confirm the correct part via a Mercedes-Benz dealer or parts specialist using your VIN.

More Wiring Behind There Than Most People Assume

A tail light unit typically bundles several functions into one housing — brake light, indicator, reversing light and rear fog light — which means a single electrical fault can affect more than one function at once, and a "faulty tail light" can mean several genuinely different things.

Before you buy: tail light design and bulb type vary by trim and facelift status. Always confirm against your VIN before ordering.

What It Does

Beyond basic rear visibility, tail light units on the E-Class typically integrate brake lights, indicators, reversing lights and rear fog lights into a single housing. Higher trims may use LED units with a distinct light signature, which are not interchangeable with standard halogen units even if the physical mounting looks similar.

Mercedes-Benz E-Class Tail Lights reference plate

Fitment & Compatibility

Tail light design changed between generations of the E-Class, and facelifted versions within the same generation often use a revised light signature that isn't interchangeable with pre-facelift units. Always confirm the exact part for your specific model year before ordering. Whether you're sourcing a replacement tail lights for your Mercedes-Benz E-Class from a dealer, specialist, or online marketplace, always check compatibility against your registration or VIN before buying, and confirm you're ordering the correct side — driver's side (RH in the UK) or passenger side (LH in the UK) — since these are not interchangeable.

A Genuinely Useful Finding Worth Knowing

If condensation keeps returning inside a light unit despite clearing temporarily, this is genuinely worth knowing: some models are fitted with desiccant drying packs specifically to help combat this, though this is explicitly a workaround rather than an actual cure for the underlying cause, worth setting expectations accordingly if a specialist suggests this as a fix. A hairdryer blown directly into the unit with the bulb holder removed can also help drive out trapped damp air temporarily, though this too is a genuine circumvention rather than a permanent solution.

A genuinely honest finding worth knowing: these units are deliberately not fully sealed by design, since heat from the lamp increases internal pressure, and a genuinely sealed unit would eventually cause the seal itself to fail — worth knowing some ventilation-related condensation is expected rather than automatically a fault.

It's also genuinely worth knowing that LED lighting doesn't produce as much heat as older halogen or xenon units, meaning condensation can genuinely linger for much longer than it would have on an older car.

Common Faults, DIY Difficulty & Aftermarket Advice

These are the same regardless of make or model — see our full Tail Lights Guide for diagnosing which circuit has failed, how easy this job is to DIY, and aftermarket advice.

More Mercedes-Benz Tail Lights

The same part, covered across other Mercedes-Benz models.