Expansion Valve for Audi A4: PU Leather
This expansion valve for the Audi A4 is specified around pu leather, 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 a fitment that looked right on paper and failed on the bench. Both are specification problems, and both are preventable.

Specification
| Product | Expansion Valve |
|---|---|
| Vehicle application | Audi A4 |
| Material / finish | PU Leather |
| Typical use | Night Riding |
| MOQ | 200 pieces per specification |
| Sampling | 10 working days, 5 days per revision |
| Bulk lead time | 25-55 days after approval |
| Compliance | SGS |
| Packing | 10 pieces per inner box, 1000 per carton |
Material options
- Neoprene — selected when the part is exposed to weather and road salt
- Reinforced Nylon — specified where the part sits close to a heat source
- EPDM Rubber — selected when the part is exposed to weather and road salt
- Bronze — preferred when weight matters more than rigidity
- Zinc Plated Steel — used when the finish has to hold a coating

Processes available
- electroplating
- rubber vulcanisation
- surface grinding
- die casting
- anodising
- gravity casting
Fitment notes
Confirm the fitment against the VIN or the frame number before ordering; two model years often share a name and not a part.
Where it is used
The specification above is the one most often ordered for night riding. Related applications include rural transport, passenger transport, weekend riding, construction sites, airport ground fleets.
Quality and packing
- In-line inspection with AQL 4.0 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
Do you handle mixed containers?
Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 200 pieces per line.
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.
How long does sampling take?
Samples leave the factory in 10 working days, and each revision round adds about 5 days once you have seen the first piece.
What is the minimum order quantity?
The standard MOQ is 200 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.
Tell us the model, the fitment and the quantity and we will hold a production slot for you.







