Oil Cooler for Audi A4: Polypropylene
This oil cooler for the Audi A4 is specified around polypropylene, 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 reorders that did not match the approved sample, or premature wear on the first batch. Both are specification problems, and both are preventable.

Specification
| Product | Oil Cooler |
|---|---|
| Vehicle application | Audi A4 |
| Material / finish | Polypropylene |
| Typical use | Rural Transport |
| MOQ | 1,000 pieces per specification |
| Sampling | 10 working days, 5 days per revision |
| Bulk lead time | 25-55 days after approval |
| Compliance | IATF 16949 |
| Packing | 10 pieces per inner box, 1000 per carton |
Material options
- Stainless Steel — selected when the part is exposed to weather and road salt
- Neoprene — selected when the part is exposed to weather and road salt
- PVC Coated Fabric — selected when the part is exposed to weather and road salt
- Semi-Metallic Compound — preferred when weight matters more than rigidity
- Tempered Glass — selected when the part is exposed to weather and road salt

Processes available
- precision stamping
- cold forging
- rubber vulcanisation
- CNC machining
- die casting
- anodising
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 rural transport. Related applications include mining sites, ride-hailing fleets, track days, roadside assistance, construction sites.
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
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 the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the IATF 16949-compliant build instead of a fresh interpretation.
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.
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.
Share a sample or a drawing and we will quote against a written specification, not against a photograph.







