Genuine BMW E91 E92 E93 Lambda Oxygen O2 Sensor 11787558073

BMW 11787558073 for bank 2 cylinders 4-6 - 910mm length
BMW 117 875 5 80 73

E82 128i, E90 E92 E91 E93 325i, 325xi, 328i, 328i xDrive, 330i, 523i 530i
E60 N52 N53
Regulating lambda probe
pre cat
pre-cat
get cross reference


Upstream or front oxygen sensors are responsible for measuring the exhaust as it comes out of the engine. This information is used by your BMW's DME to adjust fuel trim. Failed oxygen sensors can cause a check engine light as well as performance issues.

Oxygen Sensor
Your vehicle's oxygen sensor works with your engine control unit to optimize your engine's performance. The oxygen sensor is measure the proportion of oxygen in the exhaust sends input back to the engine control unit so it can modify the vehicle's air fuel ratio based off of it's current conditions. In doing so your Oxygen Sensor is a major part of your vehicle engine management and fuel consumption.

Oxygen Sensor Failure Symptoms
Reduced fuel mileage
Failed emissions testing
A check engine light
Poor drive-ability

Bosch part number 17099 17 099 . OEM replacement for BMW # 11787558073 and 11787537984.
0258017099 Bosch

MAGNA STEYR 755807302
LSU-4.9
LS 17099

Used - but perfect condition

€25