(Part number: 920968180470 or similar depending on production year). : T-20 and T-25 bits.
"Stay Safe on the Road: A Step-by-Step Guide to Replacing the SOS Battery in Your Peugeot 2008"
Replacing an SOS module battery can be significantly more expensive than a standard battery due to labor and specialized parts:
The SOS battery is a dedicated backup power source that ensures the system remains functional even if the vehicle's main 12V battery is damaged or disconnected during an accident. According to the owner's manual, if the indicator light for the system flashes or remains fixed red, it often points to a problem with this backup battery.
The SOS battery is a small, rectangular plastic-wrapped pack connected by a thin wire harness. It is usually held in place by a single screw or a slide-in plastic clip. 4. Swap the Battery peugeot 2008 sos battery replacement
An "Emergency call system failure" or "SOS fault" message appears on the dashboard. The system is unresponsive when the button is pressed.
Replacing the SOS (Emergency Call) backup battery in a Peugeot 2008
: Replacing this battery is considered a "heavy" task, often requiring the removal of dashboard panels or the instrument display. Replacement Procedure
If your Peugeot 2008 has the Start-Stop system (engine cuts out at red lights), it uses an AGM (Absorbent Glass Mat) or EFB battery. You cannot replace this with a standard lead-acid battery. The car's charging system will overcharge a standard battery, leading to failure. According to the owner's manual, if the indicator
This battery ensures that if a severe accident destroys the main car battery, the emergency system can still make a call to emergency services. Symptoms of a Failed SOS Battery
: Upon starting your vehicle, the overhead SOS button flashes orange or red for exactly 3 minutes before turning off or staying solid.
: A solid or flashing orange SOS light typically indicates that the telematic unit's backup battery is no longer holding a sufficient charge.
: Remove the trim below the dashboard display or the display unit itself to reach the BTA module. Slide the old battery out gently.
Once everything is reconnected, turn the ignition on. In many cases, the Peugeot system will run a self-diagnostic check, recognize the new voltage from the backup battery, and clear the warning light automatically within a few minutes of driving.
: On newer models, this may indicate the 10-year SOS service subscription has expired. Battery Location & Access
Undo the single small screw or plastic tab securing this door. Slide the old battery out gently.