Knock Sensor for Audi Q5: Magnesium Alloy
This knock sensor for the Audi Q5 is specified around magnesium 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 a specification nobody had written down, or a specification nobody had written down. Both are specification problems, and both are preventable.

Specification
| Product | Knock Sensor |
|---|---|
| Vehicle application | Audi Q5 |
| Material / finish | Magnesium Alloy |
| Typical use | Mountain Roads |
| MOQ | 3,000 pieces per specification |
| Sampling | 10 working days, 5 days per revision |
| Bulk lead time | 20-30 days after approval |
| Compliance | IATF 16949 |
| Packing | 10 pieces per inner box, 500 per carton |
Material options
- Semi-Metallic Compound — specified where the part sits close to a heat source
- High Density Foam — specified where the part sits close to a heat source
- Anodised Aluminium — selected when the part is exposed to weather and road salt
- Chromed Steel — used when the finish has to hold a coating
- Titanium Alloy — the cost-effective default for volume programmes

Processes available
- ultrasonic cleaning
- laser cutting
- CNC machining
- sintering
- shot blasting
- gravity casting
Fitment notes
Keep the old part until the new one is on the bench. Comparing them side by side settles questions a photograph never will.
Where it is used
The specification above is the one most often ordered for mountain roads. Related applications include adventure travel, track days, rural transport, food delivery, night riding.
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 is the minimum order quantity?
The standard MOQ is 3000 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.
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.
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.
Send the specification you are working to and we will confirm what we can match, what we would change and why.







