Leaf Spring for Audi A4: Titanium Alloy
This leaf spring for the Audi A4 is specified around titanium alloy, 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 lead time that slipped twice before bulk started, or warranty claims traced back to a single lot. Both are specification problems, and both are preventable.

Specification
| Product | Leaf Spring |
|---|---|
| Vehicle application | Audi A4 |
| Material / finish | Titanium Alloy |
| Typical use | Food Delivery |
| MOQ | 200 pieces per specification |
| Sampling | 10 working days, 3 days per revision |
| Bulk lead time | 25-30 days after approval |
| Compliance | E-mark |
| Packing | 10 pieces per inner box, 1000 per carton |
Material options
- Magnesium Alloy — chosen where wear resistance comes first
- High Density Foam — used when the finish has to hold a coating
- ABS Plastic — preferred when weight matters more than rigidity
- Titanium Alloy — the cost-effective default for volume programmes
- Zinc Plated Steel — preferred when weight matters more than rigidity

Processes available
- CNC machining
- die casting
- ultrasonic cleaning
- anodising
- electroplating
- surface grinding
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 food delivery. Related applications include weekend riding, passenger transport, urban courier work, wet weather riding, rural transport.
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
Can the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the E-mark-compliant build instead of a fresh interpretation.
What testing is included?
Standard lots ship with dimensional and hardness reports. E-mark documentation is issued with the shipment when your market requires it.
How long does sampling take?
Samples leave the factory in 10 working days, and each revision round adds about 3 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.
Send the specification you are working to and we will confirm what we can match, what we would change and why.







