All Things Mk5 > How to Guides / Troubleshooting
Battery drain still happening... Completely stumped :( **UPDATE**
Craigh1983:
Hey guys,
Sick of going on about this now to be fair...
Had a problem with my battery draining all of a sudden. I bought a new battery and car electrics went mental and in the end it kinda fixed itself (the electrical problem that is). However battery was still draining. Took it to Eddie off this forum and he tested every fuse in the car multiple times and said there is nothing running that shouldn't be. Everything is going to sleep as it should.
Drove home and battery died a week later. Went and changed the battery for a good Bosch one just incase the battery was faulty. I've had it in for a week... didn't drive my car yesterday so I thought id check on it this morning and it was completely dead again. I've had the alternator checked and is working fine and is chargning the battery. The battery doesn't die over night... it seems to be when I haven't driven it for a couple of days. it is dying to the point that it is completely flat.
I really don't know what else to do. Something is draning the battery very very quickly. The canbus and things like that seem to be all fine. Another forum member said it could be a faulty boot or door switch but if intermitent could be hard to find. There are no lights staying on when I lock the car. Checked the glove compartment light and that is turning off including the boot light.
Any other thoughts??? Really really stuck for what else to do :(
Craigh
Teutonic_Tamer:
What is the full spec of your batteries?
Craigh1983:
--- Quote from: Teutonic_Tamer on April 08, 2014, 08:27:47 am ---What is the full spec of your batteries?
--- End quote ---
Previous New one I bought was...
Exide Excell Battery 075 3 Year Guarantee
Exide Excell Batteries are high quality and high performance batteries for everyday applications. They are normally recommended for standard cars, with standard electronic systems. For higher drain systems we recommend using Exide Premium batteries.
•Amp Hours: (Ah): 60Ah•Cold Cranking Amp: (CCA): 610CCA•Length: 242mm•Width: 175mm•Height: 175mm
The one I have in now is...
Bosch S5 Battery 027 5 Year Guarantee
•Amp Hours: (Ah): 63Ah•Cold Cranking Amp: (CCA): 610
Teutonic_Tamer:
--- Quote from: Craigh1983 on April 08, 2014, 08:33:10 am ---
--- Quote from: Teutonic_Tamer on April 08, 2014, 08:27:47 am ---What is the full spec of your batteries?
--- End quote ---
Previous New one I bought was...
Exide Excell Battery 075 3 Year Guarantee
Exide Excell Batteries are high quality and high performance batteries for everyday applications. They are normally recommended for standard cars, with standard electronic systems. For higher drain systems we recommend using Exide Premium batteries.
•Amp Hours: (Ah): 60Ah•Cold Cranking Amp: (CCA): 610CCA•Length: 242mm•Width: 175mm•Height: 175mm
--- End quote ---
Holy crap Batman - Exide batteries are truly shyte. :sick:
And 075 60Ah is well below standard specification!
--- Quote from: Craigh1983 on April 08, 2014, 08:33:10 am ---The one I have in now is...
Bosch S5 Battery 027 5 Year Guarantee
•Amp Hours: (Ah): 63Ah•Cold Cranking Amp: (CCA): 610
--- End quote ---
027 is also well under spcification.
The correct OEM spec is 72Ah, CCA 380A DIN, 640A EN/SAE. This equates to a UK battery ref 096. The Mk5 is VERY picky about having the correct spec battery.
Craigh1983:
Would the 027 cause that much battery drain though?
Navigation
[0] Message Index
[#] Next page
Go to full version