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acramstr
acramstr, ASE Master Tech
Category: Acura
Satisfied Customers: 5260
Experience:  ASE master tech ,CA smog, ASE L1
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I have a Acura MDX from 2007 and the battery keep draining.

Customer Question

I have a Acura MDX from 2007 and the battery keep draining. I had a mechanic out and he pulled every single fuse but his little machine still showed him that something was slowly draining the battery. It is fine in the week when I drive to work everyday but on Mondays (after it hasn't run for the weekend) the battery is completely dead. The battery is about 1 year old
JA: How old is the battery? Have you checked the battery gauge on the dash?
Customer: 1 year old.
JA: What is the model of your '07 Acura?
Customer: Yes I have checked
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: MDX
JA: Anything else you think the mechanic should know?
Customer: Yea I'm hoping
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Acura Mechanic about your situation and then connect you two.
Submitted: 5 months ago.
Category: Acura
Expert:  acramstr replied 5 months ago.

These can be tricky to find draws in. Mostly because the system does not fully shut down for about 20-30 min after the car is shut off. So sometimes you can pull all the fuses and not find the draw. However there are 2 common things that cause draws in this model. first the compressor relay sticks on and drains the battery. In fact if it has not been changed I would just change it now as they are very common p[problem in hot weather, the other problem is the HFL (bluetooth) Unit in the back of the console they short and drain the battery as well . Since the battery takes 2 days to drain this is the most logical failure. try this pull the back off the console and unplug the HFL unit and remove the a/c relay let the car sit 30 min and recheck for a draw to see if it goes away. Here are some links to the parts Im talking about.

https://dl.dropboxusercontent.com/u/89860259/relay%20%20%282%29.jpg

Expert:  acramstr replied 5 months ago.

all the links dodnt work here are the others

https://dl.dropboxusercontent.com/u/89860259/SHOT0934.jpg

https://dl.dropboxusercontent.com/u/89860259/SHOT0933.jpg

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