hujirong

I have a 2013 R350 BlueTec and I think it's time to replace the battery, right?
Where do you buy a new battery?
Thanks
Jirong

chassis

Yes, 10 years old is past the time to replace the battery.

I buy them from the dealer. The price is competitive with retail auto parts stores, and you are (nearly) guaranteed to get the right one.

ChrisHimself

check the stamped date code, if its older than 5yrs you should but with the luck I've had just wait til you get a long start when the engine is hot

hujirong

That's what I was thinking. Now I buy oil and filters from dealer and other parts from FCP Euro. Will call dealer today to find out the price.

hujirong

I bought new in 2013 so it's 10 years now. It still works ok. The only problem is if sits for weeks then I'd better trickle charge it. Yesterday SRS lights was on and off, and OBD2 port lost the power too. Maybe my wife drove many short distances on and off drained a bit of the battery.
We always store it in the garage, now it's just over 100k, maybe that's why it last long. The build quality of the car is excellent. The only problems was from the diesel parts now under the extended warranty. The air suspension still works, only the air cable was a bit cracked at the bended end, fixed myself. I have BMW and Audi at this age, have more problems like squeaky sounds.

ChrisHimself

yep the modules coming on/off are the telltale battery warning just go pick up a new one. You can spend $179 at costco or $350 at the dealer. Both have their pros and cons, but you get quite a bit more life obviously and the battery doesn't drain down as fast. I routinely watch a full movie on just my battery in the S, fires up every time

Trampas

I had my indie mechanic put a new one in, would plan on about ~$350 for a new battery. Agree on the car--we have a 2011 R-350 that we purchased with ~50K miles, has over 100K now and hope it last for another 100K.

efzauner

nothing special about the battery. standard H8 AGM. You can change it yourself. not that difficult to get under passenger seat. I remove the 4 bolts holding the seat frame to the floor and just tilt it forward.