While I prefer to use MB garages and their OE parts I was wondering about a battery change using Halfords to get it done quickly before my March service.

Anyone know about them and this battery:

 

While I prefer to use MB garages and their OE parts I was wondering about a battery change using Halfords to get it done quickly before my March service.

Anyone know about them and this battery:

View attachment 13662

I had replaced the car battery on my 2019 W177 as soon as I got it in 2021 - the car would never go into start and stop - noticed that the alternator would produce enough voltage for it to go to 14.8v; although taking a multimeter in the early morning without the car on showed about 11v.

Originally, I thought it was the internal centre console auxiliary battery, but that was fine - until I measured the main starter battery.

I remember going to Costco three years ago, purchased a Bosch S5 A11 - to this day, even without using the car for many weeks - the start stop works instantly. I did perform a battery registration to the SOC a few months later but before the times of using Xentry, the car instantly detected a new state of health itself.

If I recall - most of the car battery brands like Bosch/Varta are manufactured by the same manufacturer, can't remember who. The Yuasa is a great brand too. Was shocked that my MB was an Exide battery that did not last 3 years but there are all sorts of tech running, presumably the later FreshUp updates optimise the battery idling situations of all the infotainment.

I prefer Costco's no quibble returns policy, just send it back whenever there's a problem - unlike ECP, I can only think they would honour the warranty.

It is a pain in the arse to change, not like the typical battery, has all sorts of cabling connected - so can understand taking it to a garage to do. I did follow a Youtube tutorial step by step.

 

I had replaced the car battery on my 2019 W177 as soon as I got it in 2021 - the car would never go into start and stop - noticed that the alternator would produce enough voltage for it to go to 14.8v; although taking a multimeter in the early morning without the car on showed about 11v.

Originally, I thought it was the internal centre console auxiliary battery, but that was fine - until I measured the main starter battery.

I remember going to Costco three years ago, purchased a Bosch S5 A11 - to this day, even without using the car for many weeks - the start stop works instantly. I did perform a battery registration to the SOC a few months later but before the times of using Xentry, the car instantly detected a new state of health itself.

If I recall - most of the car battery brands like Bosch/Varta are manufactured by the same manufacturer, can't remember who. The Yuasa is a great brand too. Was shocked that my MB was an Exide battery that did not last 3 years but there are all sorts of tech running, presumably the later FreshUp updates optimise the battery idling situations of all the infotainment.

I prefer Costco's no quibble returns policy, just send it back whenever there's a problem - unlike ECP, I can only think they would honour the warranty.

It is a pain in the arse to change, not like the typical battery, has all sorts of cabling connected - so can understand taking it to a garage to do. I did follow a Youtube tutorial step by step.

Thank you for this. I watched an YouTube video on changing the battery and whereas I was fairly confident before of changing it myself I’m not sure after seeing it.

 

Thank you for this. I watched an YouTube video on changing the battery and whereas I was fairly confident before of changing it myself I’m not sure after seeing it.

It isn't too bad tbf, it's just not as easy as the older cars which pop in and out without tearing apart a lot of the top. I watched this one a while back.

I had to make some contraption of extensions to get to the 8mm bolt on the side. Just the stuff on the side of the battery is quite messy.

I was checking the WIS, it turns out the Front SAM module will tell you in Xentry if the battery just needs charging or if it requires a new battery.

Apparently, in the removal of the battery documentation (AR54.10-P-0005MFA doc version; 22.07.2020), there is a comment:

Scan QR code on on-board electrical system battery(G1), confirm change of on-board battery (G1) using diagnostic system and fill out test log.

Non-observance will lead to an incorrect or not accurate charging characteristic.
As a result, the on-board electrical system battery (G1) may be damaged.

So it does seem the battery registration is important to make sure the SOH is not overcharging the new battery as it still appears as a old battery to the car (for certain nobody is doing this outside of MB, I did notice originally the start/stop working perfectly without doing this). It's maybe why my now close to 4-year old battery is still working fine

When I did this step months after the replacement, it did not ask me to a scan the data matrix code - although I am using offline Xentry software to begin with

 

As title says. I'm going to swap out my battery tomorrow and need to know if I need to get the car coded or not.? Cheers john

 

@Jpgleds see post #13 onwards in this thread.

 

Think it’s recommended

 

[mod note]
spam bot dealt with.

It depends on the car. Some modern vehicles require battery coding to ensure proper charging and prevent electrical issues, especially if you're changing battery type or capacity. If your car has an IBS (Intelligent Battery Sensor), coding is likely needed. What make and model are you working with?"

This keeps it helpful and invites further discussion. Let me know if you want any tweaks

Your first activity as a new user to the forum is to reply to a 6 year old post.

Also it seems very clearly the reply was generated by ChatGPT (or another AI tool) or the user is a bot.

 

My battery is being replaced as we speak. MB battery with an Amazon price match. Not cheap but still better than nothing price wise.

 

Just a quick update. Getting a new battery is like night and day as far as the S/S is concerned. I know many don’t like it but I generally do as a fuel saving tool. It now comes on from the off. Regardless of how cold it is outside.

 

Just had my starter battery replaced after months of multiple MMe popups of "Starter Battery Critical". Even after charging with a CTEK MXS 5.0 wouldn't get past partially charged in MMe. Alternator checked OK.

 

You'll find it's now like a new car.