Oxygen Sensor for BMW 3 Series: Carbon Steel
This oxygen sensor for the BMW 3 Series is specified around carbon steel, which decides how it behaves in service far more than the part name does. We build to a written specification — base material, dimensions, finish and packing — and hold that specification on file so every reorder reproduces the approved piece.
The usual reason a programme changes supplier is not unit price. It is documentation that arrived after the container shipped, or premature wear on the first batch. Both are specification problems, and both are preventable.

Specification
| Product | Oxygen Sensor |
|---|---|
| Vehicle application | BMW 3 Series |
| Material / finish | Carbon Steel |
| Typical use | Weekend Riding |
| MOQ | 3,000 pieces per specification |
| Sampling | 7 working days, 5 days per revision |
| Bulk lead time | 20-40 days after approval |
| Compliance | IATF 16949 |
| Packing | 50 pieces per inner box, 200 per carton |
Material options
- Kevlar Composite — preferred when weight matters more than rigidity
- Tempered Glass — chosen where wear resistance comes first
- Powder Coated Steel — selected when the part is exposed to weather and road salt
- Carbon Fibre Composite — specified where the part sits close to a heat source
- Aluminium Alloy — used when the finish has to hold a coating

Processes available
- electroplating
- assembly line testing
- precision stamping
- sintering
- cold forging
- surface grinding
Fitment notes
Check whether the mounting points on your market version match the catalogue drawing — regional variants are the usual cause of a wrong first order.
Where it is used
The specification above is the one most often ordered for weekend riding. Related applications include airport ground fleets, urban courier work, mountain roads, security patrols, night riding.
Quality and packing
- In-line inspection with AQL 2.5 sampling on every lot.
- Dimensional report issued against the approved drawing.
- Carton marking and barcode to your specification.
- Golden sample retained at the factory as the reorder reference.
Questions buyers ask
What testing is included?
Standard lots ship with dimensional and hardness reports. IATF 16949 documentation is issued with the shipment when your market requires it.
How long does sampling take?
Samples leave the factory in 7 working days, and each revision round adds about 5 days once you have seen the first piece.
Do you handle mixed containers?
Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 3000 pieces per line.
What is the minimum order quantity?
The standard MOQ is 3000 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.
Share a sample or a drawing and we will quote against a written specification, not against a photograph.







