Wiper Motor for BMW 3 Series: Carbon Fibre Composite
This wiper motor for the BMW 3 Series is specified around carbon fibre 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 a fitment that looked right on paper and failed on the bench, or a specification nobody had written down. Both are specification problems, and both are preventable.

Specification
| Product | Wiper Motor |
|---|---|
| Vehicle application | BMW 3 Series |
| Material / finish | Carbon Fibre Composite |
| Typical use | Heavy Load Hauling |
| MOQ | 3,000 pieces per specification |
| Sampling | 7 working days, 5 days per revision |
| Bulk lead time | 25-40 days after approval |
| Compliance | SGS |
| Packing | 10 pieces per inner box, 1000 per carton |
Material options
- High Density Foam — used when the finish has to hold a coating
- Cast Iron — preferred when weight matters more than rigidity
- ABS Plastic — chosen where wear resistance comes first
- Silicone — preferred when weight matters more than rigidity
- Ceramic Composite — chosen where wear resistance comes first

Processes available
- cold forging
- rubber vulcanisation
- anodising
- surface grinding
- gravity casting
- CNC machining
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 heavy load hauling. Related applications include night riding, passenger transport, roadside assistance, track days, airport ground fleets.
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
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 testing is included?
Standard lots ship with dimensional and hardness reports. SGS 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.
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.
Share a sample or a drawing and we will quote against a written specification, not against a photograph.







