Service Information: Battery Maintenance - SI54.10-P-0024A
Model all (4xWD, CAR, smart)
In order to guarantee a maximum service of batteries and to avoid consequential damage, the batteries should be cared for as per the specification.
| Use case/charge specification | Non-operational time not more than 6 weeks | Non-operational time max. 12 weeks | Non-operational time > 12 weeks (vehicles in storage/stock) | Vehicles in showrooms |
|---|---|---|---|---|
| 12 V battery | 12 V starter battery connected Before non-operational time and then every 4 weeks: Charging with charger (ignition off) Charging: Observe WS54.00-P-0037B . Charging current at end < 5 A |
12 V starter battery connected For vehicles with networking technology > Star 2.3 (as of model 213) Battery disconnect switch opened via the multimedia system (see operator's manual "rest mode")1 Before non-operational time and then every 12 weeks: Charging with charger (ignition off) Charging: Observe WS54.00-P-0037B . Charging current at end < 5 A |
12 V battery disconnected from on-board electrical system2 Exception: Electric vehicles and hybrid vehicles (code ME05 and code ME06), model 118, 177 and model 247. Do not disconnect the 12 V battery on these vehicles. These dealership vehicles must be processed after a "maximum of 12 weeks". Charge before non-operational time and then every 6 months with connected 12 V battery: Charging with charger (ignition off) Charging: Observe WS54.00-P-0037B . Charging current at end < 5 A |
12 volt charger permanently connected |
| 48 V battery | No external charging 48 V starter battery is internally supported by the 12 V on-board electrical system. | No external charging 48 V battery is internally supported by the 12 V onboard electrical system. | No external charging | No external charging 48 V battery is internally supported by the 12 V onboard electrical system. |
| High-voltage battery (for plug-in hybrid or electric vehicles) | Before non-operational time: If the charge level (SOC) of the high-voltage battery is < 30 %, the high-voltage battery must be charged to an SOC value of approx. 50 %. | Before non-operational time: If the charge level (SOC) of the high-voltage battery is < 30 %, the high-voltage battery must be charged to an SOC value of approx. 50 %. | Before non-operational time and then every 6 months: If the charge level (SOC) of the high-voltage battery is < 30 %, the high-voltage battery must be charged to an SOC value of approx. 50 %. | Before non-operational time and every 2 months: If the charge level (SOC) of the high-voltage battery is < 30 %, the high-voltage battery must be charged to an SOC value of approx. 50 %. |
1
Exceptions:
2
NOTE:
The non-operational time must be deducted from ASSYST manually because the service computer cannot operate without voltage. In the case of new vehicles, make sure that transport mode is activated, i.e. until the delivery inspection immediately prior to handover to the customer. Transport mode can be reactivated (after service in the showroom) up to 350 km. Before activation, the vehicle with connected 12 volt battery must be charged. Exceptions hereto are vehicles of model 453. Here, activation is no longer possible. |
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| 000 588 00 81 00 Charger | WS54.00-P-0037B |