CLA180 Battery replacement and PCM reset

[King180]

Hi Guys, I was planning to replace the Starter Battery and I know some requires the PCM to be reset so Alternator doesn’t overcharge. Is there any chance anyone can confirm if 2018 cla180 follows that trend? The manual provides option to DIY and not necessarily dealer/garage but doesn’t talk about PCM reset though. Any help greatly appreciated.

 

[King180]

@Wighty please any help with this?

 

[Wighty]

@Wighty please any help with this?

Sorry buddy , I don’t understand this new tech , my cars are both 2009

 

[alexanderfoti]

It can be reset but does not NEED to be. Its not used for charge managment like on the BMW's more for cumulative discharge monitoring.

EG How much have I taken out of the battery vs been put in, if its a big negative number, it stops the stop/start system kicking in etc.

 

[King180]

Sorry buddy , I don’t understand this new tech , my cars are both 2009

thank legend! the manual actually suggests DIY. them depleted batteries throws silly engine checks.

 

[King180]

It can be reset but does not NEED to be. Its not used for charge managment like on the BMW's more for cumulative discharge monitoring.

EG How much have I taken out of the battery vs been put in, if its a big negative number, it stops the stop/start system kicking in etc.

cheers! my little ocd wanted to do by books.