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Issues with the Eco Mode on the Peugeot 206

Model: Peugeot 206 MK 1 - Years: 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
Part: Checks and maintenance

Video tutorial

The Eco mode that prevents the Peugeot 206 from starting has become a legendary problem. It is caused by a design flaw in the electrical system.

The eco mode was created to prevent the battery from discharging: the car detects when the battery voltage is too low and disables all non-essential loads (radio, interior lights, air conditioning, central locking) to preserve energy for starting the engine.

The issue is that this mode can activate even with a fully charged battery, immobilising the car. The problem lies with the BSI being overly sensitive to voltage fluctuations, so trivial actions like starting the engine (which causes a physiological drop in voltage) trigger the eco mode, blocking the vehicle.

Heat exacerbates the problem, which is particularly felt in hot countries (especially Latin America).


Posted on 21 April 2026 by ScegliAuto


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by ScegliAuto

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