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#16
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Got the $11.99 Battery Tender from Walmart Automotive Center. Are there contact points under the hood of the 06 E320 CDI, without attaching in the trunk cavity? |
#17
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Not on my 2nd gen 2008 E320 with the OM642. Manual shows going across the battery in the trunk to jump it.
I always thought that the rule was you made the last connection as the - of the dead car to to the chassis and not to the battery. The thought is that is where it will spark and you don’t want to light off any hydrogen that may be coming off the battery. But the manual shows battery to battery. It does say to make the last connection at the E320’s battery, probably due to the fact that it is a sealed battery with a vent tube, so it does not emit hydrogen into the area around the terminals.
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The OM 642/722.9 powered family Still going strong 2014 ML350 Bluetec (wife's DD) 2013 E350 Bluetec (my DD) both my kids cars went to junkyard in 2023 2008 ML320 CDI (Older son’s DD) fatal transmission failure, water soaked/fried rear SAM, numerous other issues, just too far gone to save (165k miles) 2008 E320 Bluetec (Younger son's DD) injector failed open and diluted oil with diesel, spun main bearings (240k miles) 1998 E300DT sold to TimFreeh 1987 300TD sold to vstech |
#18
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Do not use a cheap charger on your MB Diesel!!
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MB approved chargers are made by CTEK which is a Swedish company that manufactures chargers. CTEK makes a lot of different models and you have to make sure and get one rated to handle the large batteries our diesel's have (> 95 Ah). I found this one to be the correct size and this was the best priced new one I could find after going to a bunch of sites (seller also shipped it quickly): CTEK charger suitable in size for our MB diesel batteries: MUS 4.3 This charger comes with two connection method's: clamps and eye rings. For the E320 CDI (or any vehicle with difficult to reach battery in trunk), I recommend hooking up the eye rings to the battery post bolts and snaking the wire out to a convenient place in the trunk. You then just connect the charger to the wall, connect the charger to the connection point (after removing the rubber protective cap), and then set the charger to charge. Warning: do not run the "Reconditioning mode" with the charger connected to a battery and vehicle due to the higher voltage used. The newer diesels have very sensitive electronics and electrical systems! This mode might shorten the life span of electrical system of car. The CTEK unit I purchased is very well made and thought out. I can see why MB approves of these! The newer MB's use quite a bit of energy even when not running and this puts a lot of strain on the batteries. If you leave your newer vehicle for any length of time, using one of these occasionally or leave it on while in storage. Makes a lot of sense. You will be rewarded with a car that is always ready to start and you will get longer battery life. Since I leave my CDI stored in the winter and it is cold here, I think this charger will pay for itself the first year of ownership. -- Chris
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-- Chris '95 E300, 216k miles, Silver Surfer '05 E320 CDI, 138k miles '07 S550 4matic, 69k miles Gone but not forgotten: '76 300D, 350k miles?, SOLD in 1995 '75 240D, 300k miles, SOLD in 1991 Last edited by chronometers; 09-22-2018 at 10:16 PM. |
#19
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Chris,
Thanks for this post and the research you did. For a number of years I have used a Battery Tender Plus, which has always seemed to work well with various diesels. Any reason to believe this is not a good choice? I do notice that the CTEK has a higher current capacity, which of course would be better. Quote:
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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 |
#20
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Quote:
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-- Chris '95 E300, 216k miles, Silver Surfer '05 E320 CDI, 138k miles '07 S550 4matic, 69k miles Gone but not forgotten: '76 300D, 350k miles?, SOLD in 1995 '75 240D, 300k miles, SOLD in 1991 |
#21
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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 |
#22
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Chris is correct, a cheap charger (particularly a no-name / offbrand) is always risky. CTEK makes good chargers. I have a CTEK MUS 4.3 and it works nicely (link).
I also have several Pulse Tech Xtreme Chargers which are chargers / maintainers / desfulators, similar to most of the higher-end CTEK. One thing I like about the Xtreme Charge is that it will desulfate (pulse) during the charge cycle, where the CTEK will not begine to desulfate / pulse until several days after full charge is reached. https://www.amazon.com/Pulsetech-Xtreme-Auto-Charger-Black/dp/B00BPF0Y64 YMMV, etc... |
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