While a failing SOS battery will not prevent your Peugeot 2008 from starting or driving safely, it will trigger consistent error messages and can eventually result in an MOT or local vehicle inspection advisory. This comprehensive guide covers symptoms, part selection, exact locations, and step-by-step instructions to change the emergency cell yourself. Key Warning Signs You Need an SOS Battery Replacement
A genuine Peugeot PSA backup battery (typically part number 1611139780 or 1613566680 , depending on your VIN).
Reconnect the module, put the trim back, and reconnect the main battery. How to Clear the "SOS Battery Fault" Error
Powers the telematics GPS and cellular modules if the main battery is cut off during a crash. Inside or directly behind the telematics control unit. Step-by-Step Replacement Procedure peugeot 2008 sos battery replacement
To isolate the main vehicle battery before handling sensitive electronics. Step-by-Step Replacement Process
: If the light persists, a diagnostic tool (like Lexia/Diagbox) may be required to clear the fault code. Frequently Asked Questions
The Peugeot 2008 is equipped with an emergency call system, known as PEUGEOT Connect SOS & Assistance. This system is designed to automatically contact emergency services in the event of an accident. While a failing SOS battery will not prevent
The SOS battery is not located in the engine bay. It is housed inside the , which is typically located behind the radio, under the dashboard, or behind the glovebox .
: These batteries typically have an "authorised loss" of capacity after 8 years, but many fail after 4–5 years.
Empty the glove box and use your trim tools to unclip the side panels and drop the glovebox housing to gain access to the metallic BTA box. 2. Remove the BTA Module Cover Reconnect the module, put the trim back, and
: A genuine Peugeot OEM lithium-ion or NiMH backup cell (specifically rated for telematics use; match the part number precisely).
If you plan to perform any other maintenance while working on your vehicle, you can check our step-by-step instructions for main 12V car battery replacement or consult your official Peugeot Vehicle Breakdown Guide for strict electrical handling protocols.
Turn on the ignition. Note that it may take a few minutes for the system to run its self-diagnostic routines.