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Reading MED17 ECUs with Alientech KESS V2

Alientech Kess V2 MED17 connected between a laptop and an ECU on the bench
Alientech Kess V2 MED17
Volkswagen / Audi TSI typical application for the MED17 ECU
Typical application: Volkswagen / Audi TSI (MED17 family).

Tool × ECU family

Key points: Alientech Kess V2 MED17

  • Open Alientech Kess V2 MED17 in the vendor list for this exact family — not a neighbour protocol.
  • If OBD is not listed, it is a bench or boot job.
  • Checksum correction must be on before Write. Store a virgin dump first.

This page is about using Alientech KESS V2 on the MED17 family — not about every car in Europe. KESS V2 remains in many benches for older OBD lists (EDC15, EDC16, early EDC17). New cars are on KESS3. Keep KESS V2 for the parc it already covers; do not expect MDG1 or SIMOS18 support.

Catalogue position

ParameterDetail
Family groupMED17
OBD with this toolnot listed — use another tool or skip OBD
Bench with this toolnot listed
Boot with this toolnot listed

Bosch MED17 Tricore petrol.

Practical order

  • Identify SW and HW on the label
  • Open the tool’s vehicle list and select this family, not a neighbour (EDC16 is not EDC17)
  • If OBD is listed and the car still communicates, read first on OBD
  • If OBD is missing or the ECU is silent, go bench then boot

Brick risk on this group

Interrupted writes on MED17 are recovered in boot, not by repeating OBD. Keep a matching original on ecuflashfiles.com or from the read you just took.

Original dumps sold on ecuflashfiles.com are for restore, comparison and workshop use. Stage 1 and delete work belongs on ecufilemarket.com. In some regions DPF off, EGR off, OPF / GPF off, SCR / AdBlue and even Stage 1 may be used only on off-road and competition cars. Confirm the law where the vehicle is registered.

Download original ECU filesStage 1 and deletes

FAQ: Alientech Kess V2 MED17

Does Alientech Kess V2 MED17 work on every car?

No. Coverage is the vendor vehicle list plus the ECU family. If the protocol is missing, change tool or mode — do not force OBD.

OBD, bench or boot — which first?

OBD when listed and the car still communicates. Bench when OBD is grey. Boot when the ECU is silent or the write failed.

Where should I store the original dump?

On the work order and, when you need a matching virgin file, on ecuflashfiles.com by software number.