Where is the battery on a Mercedes W221?
This is known as the onboard electrical system battery or G1 battery. This is not the starter battery. The W221 vehicles have two batteries. One is under the hood ( known as the starter battery ), and the one that we show in this guide, located behind the rear seat.
When to replace the battery in a Mercedes’s class?
Instructions and videos on this guide show you how to replace the onboard electrical system battery in 2006, 2007, 2008, 2009 Mercedes-Benz S-Class S550 S400 (W221), and CL (W216) vehicles. This is known as the onboard electrical system battery or G1 battery.
How are batteries linked in a Mercedes Benz?
Both batteries are ‘linked’ right enough thru the alternator/battery management system. Eg if your starter battery is low enough that the door locks don’t open & you have to use the flat key then both batteries are used to start the car. Supposed to be to stop you being stranded.
Where is the battery in a Mercedes CL Class?
A smaller auxiliary battery is installed under the dashboard on the driver’s side. Park your Mercedes-Benz S-Class and press the parking button on the dashboard. Open the trunk and access the panel behind the rear seat. Remove the panel by pulling it towards the back of the car.
What kind of battery is the W221 S600 S550?
W221 2007 S600 / S550 group size V4 battery mystery solved! This is an informative post for those who are going through starting problems, this post will focus on the STARTER battery. This battery is a huge proprietary mystery, every battery store employ (even interstate distributor) has no clue what a group size V4 is.
What kind of battery does Mercedes Benz 221 have?
Model 221 has a two-battery electrical system, consisting of a starter battery (G1/4) in the engine compartment and an on-board electrical system battery (G1) in the trunk.
How does the battery work in a Mercedes Benz?
• During the starting procedure the on-board electrical system battery circuit and the starter battery circuit are electrically isolated from each other. The starter battery (G1/4) guarantees the starting of the engine, while the on-board electrical system battery (G1) supplies all the electrical consumers in the vehicle.
What kind of battery does a 2007 S600 have?
Main Battery (Located in trunk) – Group size 49 (H8) & 48 (H6) – AGM battery. Some places also list both group size 48/49 as fitting the vehicle, but I haven’t verified if they would (Batteries Plus)