Car needs a boost every few days . Need help
Thread Starter
Super Member
Joined: Oct 2015
Posts: 784
Likes: 29
From: NYC
2004 CLK 500
Car needs a boost every few days . Need help
Hello Everyone . since we are quarantined I haven't driven my car lately . usually I can keep parked for a week start it up and its fine but when I tried to drive it 2 weeks ago it was dead . I got a boost and it started right away . I took it for a 2 hour ride and parked it for a few days . When I got back again it was dead . I boosted it and i drove it for an hour . I pulled over and turned the car off but left the radio on for like 10 min .(I usually have no issue leaving it for half an hour) . I got to turn it on and it died . Took it to auto zone and had them test the battery and alternator . The test showed it was charging 100% which means the alternator is charging and battery came up as good battery . I asked the guy from auto zone if it could be the battery and needs to be replaced. Since its from 2013 ( its an interstate mega tron which says has a 6 year warranty . He said if it was one of there batteries and it showed up as good battery on a test they wouldn't even replace it under warranty . I checked all the aftermarket electronics and nothing is shorted all grounds are tight . Any idea what to check next ?
Junior Member
Joined: Sep 2018
Posts: 44
Likes: 3
From: New Jersey
2006 CLK500 cabriolet
Is the battery serviceable? In other words, does it have caps that you can pry open carefully with a screwdriver to check the water level?
If so, check the level. If water is needed, make sure you use DISTILLED WATER.
I think most people don't even think about battery maintenance, perhaps I'm wrong. I check my battery water level about 5x/year.
Under no circumstances should you ever put tap water into your battery.
If so, check the level. If water is needed, make sure you use DISTILLED WATER.
I think most people don't even think about battery maintenance, perhaps I'm wrong. I check my battery water level about 5x/year.
Under no circumstances should you ever put tap water into your battery.
Thread Starter
Super Member
Joined: Oct 2015
Posts: 784
Likes: 29
From: NYC
2004 CLK 500
The link shows the top of the battery . It's not serviceable . When autozone tested the battery they had me turn off the car . Do I need a different machine to test the battery with ?
https://www.consumerreports.org/prod...6436/overview/
https://www.consumerreports.org/prod...6436/overview/
Last edited by irokdastar; May 6, 2020 at 11:06 PM.
Member
Joined: Oct 2015
Posts: 213
Likes: 22
From: Ghana, West Africa
1985(W126)500SE, 1994(W124)E420 1991(R129)500SL and The Mothership 2009 CLK550
A battery disconnect switch will isolate the battery and eliminate any parasitic drain which may take some time and money to narrow down and solve.
https://www.ebay.com/itm/Lot-2-Car-B...sAAOSwmcJdl-fR
I have one of these on each vehicle I use, and simply turning the dial reconnects power whenever I need to drive the vehicle after a long period of dormancy.
If you prefer not to disconnect the car's electrical power, one of these trickle chargers can be connected to the battery in the car, so that the battery never runs down as long as the trickle charger is plugged in.
https://www.ebay.com/itm/Car-Battery...wAAOSw0w9d3OG0
The above two temporary fixes will ensure your car fires right up whenever you need to drive it after a period of hibernation, until you are ready to have the wiring scrutinized.
https://www.ebay.com/itm/Lot-2-Car-B...sAAOSwmcJdl-fR
I have one of these on each vehicle I use, and simply turning the dial reconnects power whenever I need to drive the vehicle after a long period of dormancy.
If you prefer not to disconnect the car's electrical power, one of these trickle chargers can be connected to the battery in the car, so that the battery never runs down as long as the trickle charger is plugged in.
https://www.ebay.com/itm/Car-Battery...wAAOSw0w9d3OG0
The above two temporary fixes will ensure your car fires right up whenever you need to drive it after a period of hibernation, until you are ready to have the wiring scrutinized.
