Starter Motor for BMW 3 Series: Sintered Metal
This starter motor for the BMW 3 Series is specified around sintered metal, 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 supplier who changed material without saying so, or warranty claims traced back to a single lot. Both are specification problems, and both are preventable.

Specification
| Product | Starter Motor |
|---|---|
| Vehicle application | BMW 3 Series |
| Material / finish | Sintered Metal |
| Typical use | Delivery Fleets |
| MOQ | 200 pieces per specification |
| Sampling | 14 working days, 3 days per revision |
| Bulk lead time | 25-30 days after approval |
| Compliance | RoHS |
| Packing | 20 pieces per inner box, 500 per carton |
Material options
- Ceramic Composite — selected when the part is exposed to weather and road salt
- Neoprene — used when the finish has to hold a coating
- High Density Foam — preferred when weight matters more than rigidity
- Tempered Glass — the cost-effective default for volume programmes
- Anodised Aluminium — selected when the part is exposed to weather and road salt

Processes available
- CNC machining
- gravity casting
- electroplating
- precision stamping
- powder coating
- heat treatment
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 delivery fleets. Related applications include delivery fleets, daily commuting, roadside assistance, airport ground fleets, heavy load hauling.
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.
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.
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.
Can the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the RoHS-compliant build instead of a fresh interpretation.
Send the part number, the annual volume and the target market, and we will come back with a specification and a sampling plan.







