MAF Sensor for Audi A4: Aluminium Alloy
This maf sensor for the Audi A4 is specified around aluminium 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 supplier who changed material without saying so, or premature wear on the first batch. Both are specification problems, and both are preventable.

Specification
| Product | MAF Sensor |
|---|---|
| Vehicle application | Audi A4 |
| Material / finish | Aluminium Alloy |
| Typical use | Weekend Riding |
| MOQ | 200 pieces per specification |
| Sampling | 10 working days, 3 days per revision |
| Bulk lead time | 25-55 days after approval |
| Compliance | SGS |
| Packing | 100 pieces per inner box, 500 per carton |
Material options
- PVC Coated Fabric — preferred when weight matters more than rigidity
- Forged Aluminium — the cost-effective default for volume programmes
- Cast Iron — used when the finish has to hold a coating
- Polypropylene — chosen where wear resistance comes first
- Nylon 66 — specified where the part sits close to a heat source

Processes available
- injection moulding
- heat treatment
- rubber vulcanisation
- cold forging
- CNC machining
- ultrasonic cleaning
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 weekend riding. Related applications include off-road trails, airport ground fleets, urban courier work, weekend riding, long-distance touring.
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 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 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 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 SGS-compliant build instead of a fresh interpretation.
Tell us the model, the fitment and the quantity and we will hold a production slot for you.







