Lambda sensor Mercedes-Benz GL-CLASS (X164) 2006+ GL 420 CDI 4-matic (164.828) OM 629.912 A0051531828

Part type

Lambda sensor

Also known as

Oxygen sensor, O2 sensor

Manufacturer

Mercedes-Benz

Model

GL-CLASS (X164)

Years

2006–present

Engine

GL 420 CDI 4-matic (164.828)

Engine code

OM 629.912

SKU

C9FB28D6

OEM

A0051531828

0648B43300030

This exhaust gas temperature sensor monitors emission-control parameters on the GL 420 CDI 4-matic engine, protecting drivetrain components by tracking exhaust temperature. OEM codes A0051531828 and 0648B43300030 apply to this Mercedes GL-CLASS (X164) unit. The sensor shows visible wear and soiling; verify OEM compatibility with your original part before ordering, as fitment may vary across GL-CLASS diesel variants.