- Mercedes-Benz E-Class: Warning Lights
Important information to help you understand your Mercedes-Benz
Red battery message ( Visit workshop)
Everything appears to work fine and called dealer. Appointment on Wednesday .. but maybe I should just call roadside assistance to come and change it??!!
Mine was under warranty but they do not cover this battery. If you have less than 12,000 miles they might. Otherwise the bill will be $150 parts + 100 labor or about $250 for this battery.
Question, have you ever heard of an auxiliary battery under the passenger front seat?

I took my car today for service (2003 E320) and on top of the Service D (which is really a Service A $290) and the Spark Plugs Replacement (due at 5 years of 100,000 miles, over $400), they call me and tell me that the Auxiliary Battery failed the Test they did. When I asked him if that was the smaller battery by the engine on the Passenger Side he says, "No, is the one under the Passenger Front Seat". I was like:

I have read lots of Mercedes Forums but I have never heard of a Battery under the Front Passenger Seat. Would you guys know?
I swear, I am going to COSTO and I am going to buy one of those HUGE Vaseline Jars so that the next time I go to the dealer, I will ask them to use some before they SCREW me again. They are always finding something additional to the Scheduled Service that happens to be NOT COVERED by the warranty that you MUST do.
Let me know guys if indeed there is such a battery and if so, is there is any place to get it on the web.
Thanks!
Question, have you ever heard of an auxiliary battery under the passenger front seat?

I took my car today for service (2003 E320) and on top of the Service D (which is really a Service A $290) and the Spark Plugs Replacement (due at 5 years of 100,000 miles, over $400), they call me and tell me that the Auxiliary Battery failed the Test they did. When I asked him if that was the smaller battery by the engine on the Passenger Side he says, "No, is the one under the Passenger Front Seat". I was like:

I have read lots of Mercedes Forums but I have never heard of a Battery under the Front Passenger Seat. Would you guys know?
I swear, I am going to COSTO and I am going to buy one of those HUGE Vaseline Jars so that the next time I go to the dealer, I will ask them to use some before they SCREW me again. They are always finding something additional to the Scheduled Service that happens to be NOT COVERED by the warranty that you MUST do.
Let me know guys if indeed there is such a battery and if so, is there is any place to get it on the web.
Thanks!
My E500 has only 2 bat's I know of. One in trunk and one under hood under ac filter cover. This is the aux bat and I found a identical replacement at autozone for $69.00.
But $400 for plugs is pretty reasonable given you have 12 plugs at $10+ each and Labor at $110 / hr. sounds about straight up unless you DIY.

The Best of Mercedes & AMG
check post 57
Quote from post 56
I took my car today for service (2003 E320) and on top of the Service D (which is really a Service A $290) and the Spark Plugs Replacement (due at 5 years of 100,000 miles, over $400), they call me and tell me that the Auxiliary Battery failed the Test they did. When I asked him if that was the smaller battery by the engine on the Passenger Side he says, "No, is the one under the Passenger Front Seat".
Note he asked the dealer if it was the aux bat by the engine on the pass side which is the AUX batt. So apparently there was a 3rd battery. But any case it is clear communication is an issue.
http://cgi.ebay.com/ebaymotors/Power...Q5fAccessories
The pic shows a group size 12 but in the description it states it's a 14-BS and gives the dimensions.
Autozone GTX 14-BX FG AGM battery this should be the exact replacement for $69.99
The Ebay part would be the easiest one to purchase, if I could only get some feedback on it. http://cgi.ebay.com/ebaymotors/Power...Q5fAccessories
Walmart everstart Maxx 14-BS AGM
Interstate CYTX 14-BS (at local firestone)
Delco GTX 14-BS
Napa 740-1866?? Not sure if # is correct
Yacht CTX12-BS ETX-12/12BS
Sears CB12C-A
Yuasa YB12AL-A2
Sears DieHard Gold 14-BS AGM $69.99
Too bad Sears DieHard Platinum AGM is not available in group size 49 for the main battery
Last edited by Roehl; Mar 13, 2009 at 06:40 PM.
I got a red message in the car cluster saying (Visit workshop) with the battery picture in it.
Well the ignation and the lights are working very well, once I swtich on the car and turn it off then switched back on, the message comes back on. The car I drive is 2004 E320, do I need to change the battery and which one the auxillary one under the hood or the main one in the trunk ?
Any help will be really appreciated, I am sure somebody has gone through this ordeal.
Thanks
So i had the same exact problem occur to me. The red message has been present for a couple of months.
Everything works fine.
So I take it to the dealer and he says I need a new auxillary battery and it's going to cost me $260 parts and labor.
I say, "Can I just change out the battery my self?"
He says no. It's not as simple as changing out the main battery. He said since it's tied into the brake system, the brakes need to be discharged and when doing this auxillary battery change. So no, I can not do this on my own, according to him.
Is this service agent just trying to rip me off??? Hmmm, I wonder, is there ANY truth to what he said. Doesn't sound like it according to this thread.






No car battery there as vettdvr says.

