bimerbenzbently

Im wondering how long does your battery last when you park your CLs.

I noticed if i park my car in the garage it will not start after a week of sitting. I have to charge the battery than everything goes back to normal. This dosen't seem normal and I'm curious if this happens to anyone else. This gets annoying since you need to break into the trunk and force it open to access the battery.

if i start the car daily the battery never dies so keeping that in mind there must be something draining my battery or it could be time for a new battery.

any help is appreciated

thanks

TwinTurboTim

Maybe you should test your battery. Probably just getting weak.

bimerbenzbently

will do

thanks

OCKlasse

Do you have a lowering module?

bimerbenzbently

i lowered it via the Mercedes Star program

OCKlasse

Nevermind then. The V2 in particular draws a lot of power.

Rdub

The short answer: buy and deploy a battery trickle charger.

The oem charging systems are NOT designed to bring the battery back to 100%. Further it is wishful thinking that our cars LOADED with electronic do dah's (being a technical term) do/will not draw current when OFF. This does not even take into account further custom electronics, or individual "customized" current draw !!

Blkvip

mine alllllllllmost didn't start after a week or so of sitting, buddy who used to own a CL had same problem. we both run V2 lowering mod's.

bimerbenzbently

what battery are guy guys running? is there a specific one i should get i was thinking to replace my battery just incase plus its already almost 2 years old.
thanks for all the help by the way

Rdub

Unless you have a bad cell (normally statistically rare); with the trickle charger, it would not be unreasonable to expect a minimum of 4 years. Most of mine are diesel so I would normally recommend OEM (specified for greater current draw) . In the gasser case, still oem, but you have a greater latitude.

MagCL

If you have an original MB battery you should get at least 5 years out of it. I would buy a CTEK maintainer, charge it up completely and then disconnect it. If the car won't start again after a week of sitting, then you have something draining the battery. I had the same problem with my CL and it turns out there was something wrong with the heated mirror and it was draining the battery.

Would you be able to share how you lowered the car using star?? I tried once, but failed.

Dr Matt

Buy an Odyessy (not optima) battery when you replace yours. Not cheap, but why would you go cheap on a battery for a. CL.

bimerbenzbently

thanks for the advice

and about the lowering, i actually took it to one of my buddies that owns the Mercedes Star program (he is also a member on this forum) and together we took our time and dropped it. I use the "raise" button when going over speed bumps or whenever its needed since I'm riding pretty low.

I will look into the Odyessy as my next battery, hopefully i can find it in Canada

thanks for the advice

benz_addict

I think it needs to be the AGM battery I know they sell it at crappy tire for $199 if you need more help call me tomorrow !

bimerbenzbently

respect fam

Exotic-metal55

I heard if you lock the doors, power will be reduced while sitting up.. I use a MB bat and can sit for a month, with no issues. I usually drive the car once a week though.

bimerbenzbently

thanks for the tip

just wondering how much do the MB batteries go for and is there a real advantage besides the name brand