Cabin Filter for BMW 3 Series: Kevlar Composite
This cabin filter for the BMW 3 Series is specified around kevlar composite, 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 packing that arrived crushed at the port, or documentation that arrived after the container shipped. Both are specification problems, and both are preventable.
Specification
| Product | Cabin Filter |
|---|---|
| Vehicle application | BMW 3 Series |
| Material / finish | Kevlar Composite |
| Typical use | Heavy Load Hauling |
| MOQ | 1,000 pieces per specification |
| Sampling | 14 working days, 3 days per revision |
| Bulk lead time | 25-55 days after approval |
| Compliance | RoHS |
| Packing | 20 pieces per inner box, 1000 per carton |
Material options
- ABS Plastic — preferred when weight matters more than rigidity
- Stainless Steel — chosen where wear resistance comes first
- Anodised Aluminium — preferred when weight matters more than rigidity
- PVC Coated Fabric — used when the finish has to hold a coating
- Chromed Steel — specified where the part sits close to a heat source
Processes available
- anodising
- gravity casting
- CNC machining
- die casting
- injection moulding
- precision stamping
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 heavy load hauling. Related applications include track days, adventure travel, mining sites, mountain roads, passenger transport.
Quality and packing
- In-line inspection with AQL 1.5 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
How long does sampling take?
Samples leave the factory in 14 working days, and each revision round adds about 3 days once you have seen the first piece.
How is packing specified?
Individual packing, inner box quantity and carton marking are confirmed at quotation stage so the cartons arrive ready for your warehouse.
What happens if a lot fails inspection?
The lot is re-inspected against the golden sample, and replacement pieces ship on the next available booking at our cost.
Can you match an existing sample?
Send a sample and we will reverse-engineer the specification, then produce a counter sample for approval before any bulk starts.
Send the specification you are working to and we will confirm what we can match, what we would change and why.
