Module and infotainment faults
Attaches to INSIGNIA-A at chassis level · Electrical · carried by 6 variants across 2 chassis
Overview
Module and infotainment faults is a common fault recorded against INSIGNIA-A at chassis level, typically from 110–200k km. It shows up as warning lights that come and go, an infotainment screen that freezes or reboots, and occasional electric-window or central-locking failures. Where it's documented, the repair runs €150–€900 (battery at the cheap end, module replacement and coding at the dear end, costs dated 2026-07), and it can be partly checked before you buy. 6 variants across 2 chassis in this database inherit it.
What happens
Symptom. Warning lights that come and go, an infotainment screen that freezes or reboots, and occasional electric-window or central-locking failures.
Cause. These carry a lot of electronic modules for their price and the wiring and connectors age. A weak battery is the most common root cause, since low voltage upsets several modules at once, though genuine module failures happen.
How to check it
OBD scan
Scan every module rather than just the engine, work the infotainment for a few minutes, and check whether the battery has been replaced.
Mandatory. A seller who refuses a scan has answered the question.
Every variant that carries this
| Variant | Chassis | Body | Years | Risk | Good buy | Cost as % of good buy |
|---|---|---|---|---|---|---|
| 2.0 CDTI A20DTH | A | hatchback | 2008–2017 | R3 | €1,750 | 30% |
| 2.0 CDTI A20DTH | A Sports Tourer | wagon | 2009–2017 | R3 | €1,850 | 28% |
| 1.8 A18XER | A | hatchback | 2008–2015 | R2 | €1,450 | 36% |
| 1.8 A18XER | A Sports Tourer | wagon | 2009–2015 | R2 | €1,500 | 35% |
| 2.0 Turbo A20NHT | A | hatchback | 2008–2015 | R3 | €2,100 | 25% |
| 2.0 Turbo A20NHT | A Sports Tourer | wagon | 2009–2015 | R3 | €2,250 | 23% |
The last column is the point. The same repair is an inconvenience on one variant and a reason to scrap the car on another. A failure costing a quarter of the vehicle's value changes the purchase decision regardless of how rare it is.