Charging and starting systems Mercedes S-Class (W220)
Charge and launch systems — general information All vehicles covered in this manual have a 12V electrical system. The ground connection is through the negative battery terminal. The battery is in the trunk. The...
Battery — basic information and how to buy a new one See also Section Battery check, care and charging . The installed 12V battery consists of six jars containing positive and negative plates, which are dipped in a...
Checking and charging the battery Low maintenance battery 1. If the annual mileage of the car is low, the density of the electrolyte should be measured every three months to check the battery charge....
Storage of the battery 1. If the car has not been used for more than two months, the battery must be removed and charged. The optimum battery storage temperature is between 0 and +27°C. At...
Charging system — general information and safety measures The vehicle has an alternator. When installing additional electrical equipment, make sure that the generator has enough power to power this equipment. The generator is...
Checking the charging system 1. If you find a malfunction in the charging system, a generator malfunction cannot be the only reason. Perform the following checks: Inspect the drive belt to make sure...
Checking the engine start system Starter elements 1 - Starter; 2 - E / magnetic starter; 3 - Gear with overrunning clutch; 4 - Field windings; 5 - Brushes; 6 - Bearings Starter elements are shown in the...