Cabin Filter for Audi A4: Cast Iron
This cabin filter for the Audi A4 is specified around cast iron, 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 premature wear on the first batch, or a fitment that looked right on paper and failed on the bench. Both are specification problems, and both are preventable.
Specification
| Product | Cabin Filter |
|---|---|
| Vehicle application | Audi A4 |
| Material / finish | Cast Iron |
| Typical use | Heavy Load Hauling |
| MOQ | 1,000 pieces per specification |
| Sampling | 14 working days, 5 days per revision |
| Bulk lead time | 15-30 days after approval |
| Compliance | RoHS |
| Packing | 100 pieces per inner box, 500 per carton |
Material options
- Kevlar Composite — the cost-effective default for volume programmes
- Titanium Alloy — the cost-effective default for volume programmes
- Zinc Plated Steel — chosen where wear resistance comes first
- Neoprene — the cost-effective default for volume programmes
- Aluminium Alloy — used when the finish has to hold a coating
Processes available
- CNC machining
- heat treatment
- robot welding
- ultrasonic cleaning
- shot blasting
- die casting
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 weekend riding, food delivery, mining sites, heavy load hauling, farm use.
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
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.
How long does sampling take?
Samples leave the factory in 14 working days, and each revision round adds about 5 days once you have seen the first piece.
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.
Do you handle mixed containers?
Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 1000 pieces per line.
Share a sample or a drawing and we will quote against a written specification, not against a photograph.
