Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Diesel Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #16  
Old 07-25-2017, 08:14 AM
Registered User
 
Join Date: Sep 2006
Location: Middle TN
Posts: 4,154
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.

Reply With Quote
  #17  
Old 11-15-2017, 06:56 AM
Registered User
 
Join Date: Jul 2004
Location: Barrington, RI
Posts: 5,874
Could tell it's getting weak. Measured 575 CCA. Replaced....ready for New England winter.
__________________
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
Reply With Quote
  #18  
Old 11-15-2017, 09:29 AM
Graham's Avatar
Registered User
 
Join Date: Nov 2004
Location: Ontario, Canada
Posts: 4,393
Quote:
Originally Posted by torsionbar View Post
Batteries last exceptionally long in the W210 due to its location. Getting 10 years out of a w210 battery is not rare or unusual at all.
Funnily, that has not been my experience with our 98 E320 which has not been driven much in winter. It has had more batteries in the 17 years we have had it than any of our old cars. Even my winter driven 85 300D that has 430k km on it. It will at least "try" to start

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:
Fully charge battery according to SAE J537 and cool to -18°C (0°F) for 24 hours. While at subfreezing temperature, apply a discharge current equal to the specified CCA. (500 CCA battery discharges at 500A.) To pass, the voltage must stay above 7.2V (1.2V/cell) for 30 seconds.
CCA using DIN method seems more useful for computer controlled cars.

Quote:
Fully charge battery according to SAE J537 and cool to -18°C (0°F) for 24 hours. While at subfreezing temperature, apply a discharge current equal to the specified CCA. (500 CCA battery discharges at 500A.) To pass, the voltage must stay above 9V for 30s and 6V for 150s.
Hand held CCA testers are apparently not too accurate. More here
BU-902a: How to Measure CCA – Battery University

Don't know if this is true on the W210 diesels. Maybe the electronics are different?

__________________
Graham
85 300D,72 350SL, 98 E320, Outback 2.5
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 09:53 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page