Audi A4 B7 Oxygen Sensor
Replacement oxygen sensor — fitment, symptoms & live UK prices.
Fits Audi A4 B7 — check your reg/VIN to confirm
From £14.95 · 6 live listings on eBay
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Audi A4 B7 2.0 TFSI Petrol Exhaust Oxygen Lambda Probe Sensor 06D906265
£14.95View ›
Lambda O2 Oxygen Sensor For Audi A3 A4 A6 A8 TT VW 1.6 1.8 T 2.0 2.4 Golf MK4
£18.99View ›
Post Cat Rear Lambda Oxygen O2 Sensor Fits Audi A1 A3 A4 A5 A6 A8 Q7 0258010036
£18.99View ›
FOR VW GOLF BORA MK4 AUDI A4 A6 A8 TT SEAT O2 OXYGEN SENSOR LAMBDA SENSOR FRONT
£20.99View ›
LAMBDA OXYGEN SENSOR FRONT FOR AUDI A3 (8L1) A4 (B6) A6 (C5) A8 TT Q7 021906262B
£26.39View ›
LAMBDA OXYGEN SENSOR 5 WIRE FOR AUDI A3 (8L1) A4 (B6) (B7) A6 (C5) TT 1.8 PETROL
£38.95View ›
Will it fit my Audi A4 B7?
Pre-cat (upstream) and post-cat (downstream) sensors are different parts — check which one your fault code points to, and how many your engine has.
Tip: filter by your reg on eBay's compatibility check, or match the part number stamped on your old unit.
Signs your Audi A4 B7 oxygen sensor needs replacing
- Engine warning light (O2/lambda code)
- Poor fuel economy
- Rough idle or hesitation
- Failed emissions/MOT
Fitting it yourself
Usually a single plug and a thread into the exhaust — quick if it's not seized. Penetrating oil helps on an old sensor.
See Oxygen Sensor prices on eBayMore Audi A4 B7 parts
HeadlightAudi A4 B7ExhaustAudi A4 B7Window RegulatorAudi A4 B7Engine MountAudi A4 B7EGR ValveAudi A4 B7Starter MotorAudi A4 B7
Live pricesFrom £14.95
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