W212 battery

[b21playa]

Hi all

Car sometimes struggles to start and tested battery and has low charge and soh.

Battery has been changed before at some point and is non agm, is this correct? It’s a 2010 e350 cdi

Thanks

 

[MrGreedy]

Probably this post will help you. Gives some AGM info related to your car.
These batteries are across a few w212s, and also SL350s.

Use partsouq.com plus your VIN to double check Merc part number fitted at build.

Post in thread 'SL350 - Best main battery ?'

Dec 31, 2020

I've just spent a good while researching this a week ago. My choices settled on the Bosch S5 or Varta Silver.
I'd go with Bosch S5 in this instance. I think as said it's the same manufacturer essentially as Varta.
The Bosch comes with a 5 year guarantee vs. Varta Silver's 4 years. Price is virtually identical.

I've recently bought a new battery for my E350 (2011 vintage, on the original battery). Like you, I was surprised by the factory fit AGM, but one of the benefits of AGM is it takes discharging better with less damage, and due to lockdowns the car is getting less regular use, so I...

• MrGreedy

• 

 

[b21playa]

Thank you, will check it out

 

[b21playa]

Part number fitted is A 000 982 21 08 which says 80ah 740aH which from a Google looks like an agm

As I was taking battery out I noticed oil on the turbo housing, not sure where that is coming from

 

[MrGreedy]

Part number fitted is A 000 982 21 08 which says 80ah 740aH which from a Google looks like an agm

Same number as my W212 battery

w212 E350 CDI 265bhp - Battery advice | Electronics and Audio

 

[MrGreedy]

As I was taking battery out I noticed oil on the turbo housing, not sure where that is coming from

Start another thread in the engine section with a couple of decent photos buddy, and we can have a look

 

[MrGreedy]

To be clear, I think these are the batteries for your car.

 

[b21playa]

Same number as my W212 battery

w212 E350 CDI 265bhp - Battery advice | Electronics and Audio

What did you go for in the end? I’ve just taken mine out to charge up properly

 

[MrGreedy]

I went with the Varta F21, as the rumour is that Varta make the Merc batteries for the W212, and they tend to last 10 years if used regularly/looked after.
Whether they are exactly the same as those supplied to Merc vs sold aftermarket, who knows.
Merc batteries come with a 2 year warranty.

But, the Varta silver 'only' come with a 4 year warranty.
The Bosch S5 series come with a 5 year warranty.

The prices for these can be quite up and down over the months, and the various batteries seem to compete with each other on price, so sometimes one battery can be much cheaper one month, then swap round the next.
The screenshot I listed with prices was for Tayna batteries, who are usually competitive.