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#16
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There is a guy on cumminsforum that Ron's his house on batteries and swears that having a maintenance charge that balances the charge between cells greatly extends their life.
Not all chargers have that option. Apparently CTEK chargers do. |
#17
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Could tell it's getting weak. Measured 575 CCA. Replaced....ready for New England winter.
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14 E250 Bluetec "Sinclair", Palladium Silver on Black, 153k miles 06 E320 CDI "Rutherford", Black on Tan, 171k mi, Stage 1 tune, tuned TCU 91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion 19 Honda CR-V EX 61k mi Fourteen other MB's owned and sold 1961 Very Tolerant Wife |
#18
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Quote:
Reason for the E320 battery problem is that if the starter pulls the system voltage much below 10V, the computer prevents the car from even trying to start. Car become completely dead. You can check the voltage during normal starting using the Climate Control display. Sometimes recharging the battery will allow the battery life to be extended for a while. But before long, it will happen again. Turn key and nothing happens - and this not even in winter! CCA (SAE method) is not the greatest measure given the above low voltage problem. 7.2 volts - not good enough on the gas W210! Quote:
Quote:
BU-902a: How to Measure CCA – Battery University Don't know if this is true on the W210 diesels. Maybe the electronics are different?
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Graham 85 300D,72 350SL, 98 E320, Outback 2.5 |
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