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TDI 101 Got a simple/basic TDI question? Are you a newbie (new to the forums). Feel free to post your question here.

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Old September 11th, 2019, 08:08   #16
Mongler98
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Join Date: Mar 2011
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in b4 massive debate thread that gets derailed
Ahhhhhhhhhhh
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Old September 11th, 2019, 09:57   #17
Dannyboy
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Fuel Economy: All good on the motion lotion
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Originally Posted by scooperhsd View Post
You want AMP HRs in a TDI because


1- Glowplug power draw
2. Starter draw (especially when it has to turn more because of cold).
Starter draw is not measured in AH because that's what CCA stands for, Cold Cranking Amps or CA ie maximum power in short burst such as cranking. Amp hour is constant draw the battery can take before you start damaging it.

I will agree with you on dont go off CCA alone but your statement is incorrect in saying go off AH alone.
You have your wires crossed.
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Old September 11th, 2019, 10:03   #18
Mongler98
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You can start a tdi or any engine for that matter with a set of capacitors even in the cold. That's what those instant jump packs are. There are basically no amp hours on them, maybe a few minutes but it will start my ahu mk3 no issues even at -10*F
Cold cranking amps go hand in had with mass power storage.
When in dought, go back to the owners manual and service for the car.
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Old September 11th, 2019, 12:24   #19
BobnOH
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As to the original question, batteries have always been rated by year, you can make anything cheaper. Some resellers can up the warranty period, as a sales tool. I see Honda is giving 9 years on a regular 4 or 5 year battery. Don't think I've ever seen a 2 year battery, but Interstate does sell a lot reconditioned.
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Old September 11th, 2019, 14:47   #20
scooperhsd
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Originally Posted by Mongler98 View Post
You can start a tdi or any engine for that matter with a set of capacitors even in the cold. That's what those instant jump packs are. There are basically no amp hours on them, maybe a few minutes but it will start my ahu mk3 no issues even at -10*F
Cold cranking amps go hand in had with mass power storage.
When in dought, go back to the owners manual and service for the car.



That should be DOUBT not dought , and the manual on my 2000 NB is exactly where that Group 48 72 Amp Hour battery came from . It so happens that the 2015's also use that same battery (at least MY 2015 Golf TDI does). The gasser versions only specify a Group 47 (which may have the CCA, but not the Amp Hours).
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Now 5 speed manual and onto 500,000 miles + !
2015 Golf TDI SE DSG
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