S-class W202 Mercedes

1993-2000 of release

Repair and car operation



W202 Mercedes
- 1.2. General information
   1.3. Maintenance
   1.4. Keys
   1.5. Doors
   1.6. Seats
   + 1.7. Safety systems
   + 1.8. Salon equipment
   + 1.9. Driving
   1.10. Engine cowl
   1.11. Ventilation block, conditioner
   1.12. Some councils upon car purchase
   1.13. Changed numbers
   1.14. Purchase of the old car
   1.15. Durability of the car
   1.16. About parallelism of bridges of the car and the trailer
   - 1.17. Preparation of the car for winter
      1.17.1. Tires
      1.17.2. Engine
      1.17.3. Oil
      1.17.4. Accumulator
      1.17.5. Ignition system
      1.17.6. Body
      1.17.7. Glasses
      1.17.8. Expendables
+ 2. Maintenance
+ 3. Engines
+ 4. Greasing system
+ 5. Cooling system
+ 6. Heating, ventilation
+ 7. Ignition system
+ 8. Fuel system
+ 9. Transmission
+ 10. Running gear
+ 11. Steering
+ 12. Brake system
+ 13. Body
+ 14. Electric equipment
+ 14.2. Electroschemes








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1.17.4. Accumulator

GENERAL INFORMATION

Struck a frost, and the accumulator which still yesterday was vigorously twisting a starter, refuses to do it flatly. Anything surprising – when you charged it the last time?

If the accumulator is youngish (till 3–4 years), on the threshold of winter it needs to be washed up outside, to clear plugs and completely to charge – if the car was constantly maintained in the city, the charge of the battery is for certain far from the nominal. If the accumulator old and to nominal capacity is not charged, change without thoughts, differently in the winter it for certain will bring you – capacity and so strongly falls with temperature fall, and here also the increased power consumption – a heater, heating of seats, light, yard keepers, a heater of back glass...

By the way, on responses of experts, average duration of "high-grade life" accumulator makes about twelve months, gradual withering further begins. And the peak of sales of starterny batteries, according to sellers, is necessary just for the autumn.

Times when the car owner was rushed off the feet in search of the new accumulator, passed long ago – from a variety of trademarks and models on regiments of shops рябит in eyes. What to choose – a personal record of everyone. Let's note only that in the market now it is possible to allocate two price groups – batteries in cost over $60 (usually to $100), for example, "Bosch", "Steco", "American", "Fiamm", and accumulators at the price of below $60 ("Mutlu", "Inci", "Centra", "SAEM" etc.).

Higher prices of batteries of the first group are defined by more perfect technology of their production. These accumulators, as a rule, belong to category of the unattended. Special types of electrolits and tight execution of such batteries increase a resource of their operation and provide the high starterny currents guaranteeing a provorachivayemost of the engine even at hard frosts. Leading producers without fail use now technology of packing of plates therefore it is possible to avoid short circuit of the battery in case of their destruction.

Cheaper accumulators demand periodic service – checks of density of electrolit and measurement of its level. Let's remind that the electrolit density for the winter period should be not lower 1,29.

Often upon purchase of the new battery try to choose it in capacity more if only got on the place taken away for it. But capacity – not the main thing. Where the starterny current which is provided by the battery is more important. After all even at the accumulator with big capacity this indicator (because of big own resistance) can appear lower, than at the accumulator with smaller capacity. Besides, the battery with bigger capacity needs higher current of the additional charge, which generator of your car will not provide, and the battery in use will be discharged more and more that is pitiable will affect term of its service.

By the way, if buy the battery which is differing from regular, pay attention to an arrangement of its conclusions – accumulators come across to "return polarity" which plugs of a wire of your car can and not reach.