Lambda sensor Mercedes-Benz S-CLASS (W221) 2005–2013 S 400 Hybrid (221.095, 221.195) M 272.974 0065423918

Part type

Lambda sensor

Also known as

Oxygen sensor, O2 sensor

Manufacturer

Mercedes-Benz

Model

S-CLASS (W221)

Years

2005–2013

Engine

S 400 Hybrid (221.095, 221.195)

Engine code

M 272.974

SKU

4328794

OEM

0065423918

0258010117

Lambda sensor for the Mercedes-Benz S-Class W221 (2005–2013) S 400 Hybrid with the M 272.974 engine. This oxygen sensor monitors exhaust gas composition to optimize fuel injection and emissions control. OEM codes 0065423918 and 0258010117 apply; verify the original unit's codes before ordering to confirm fitment with your specific vehicle configuration.