Hello everyone it's 'Lurgs' here welcome to my channel and today the battery
location and how to check the battery on your Mercedes S Class S350 and this is
the 2016 model, right let's get cracking, now the first thing you need to do is
open the bonnet or the hood as they say in America, and we're going to be
checking the battery by opening up this small panel on the right hand side, now
the battery isn't actually under here but this is the easiest way to check it
first, I will show you the battery location later on in the video so slide
this red cap just along to the left, just tucks underneath the rubber there, and
then you can just remove this panel here, you just got three screws here they just
turn a quarter of a turn and then you just lift that panel out, you don't
actually have to do that but it's just easier to get to some metal on the
chassis for the negative part of the multimeter, then take your digital
multimeter set it to 20 volts which is the nearest setting to a 12 volt battery,
put the red node on the positive [+] terminal there and put the black node
anywhere on the metal chassis I'm just going to put it on this part here, and we
should get a decent reading let's just check the multimeter, and we've got a
reading of 12.39 volts which is actually pretty good, now what
we're going to do now is start up the engine and then check the voltage with
the engine running and this should prove that the alternator is charging the
battery correctly, now do be aware that obviously this model has got stop-start
technology so make sure that the engine is definitely running, and there's a link
above now about the OBD2 port location on your Mercedes S-Class, now
with the engine running we put the nodes back on againand we should have a much
higher reading and that is excellentwe've got 14.37 volts
so the battery is charging correctly, now make sure you put
everything away, now what we do is we'll actually test the actual battery which
is in the boot or the trunk, I'll just show you what's underneath the panel
here just lots of electronic gizmos and then the big red chunky wires which go
to the battery in the boot or the trun,k so open the boot or the trunk and then
push down at the front here to release the handle, then lift this handle up and
then you've got this handy boot clip so just unclip that from the underside and
then that just hooks over the chassis just underneath the window here, and this
just keeps this out of your way, now there's no spare wheel in this car
because the tires are enormous to 245/40 ZR20s so just remove the tire repair kit
and the tire pump, and there's a link above now about how to adjust the
steering wheel on your Mercedes S-Class, now what you can do is you can just lift
this panel up gently, this will actually remove completely, but I'm just going to lift it up
slightly out of the way, and there is the battery there and it's a right beast of
a battery obviously because it's got stop-start technology, and there's a link
above now about a couple of things that I hate about the Mercedes S-Class S350,
again take your digital multimeter and put it on the 20 volt setting and
now we're just going to test the battery directly, so just remove this
panel here which covers the positive terminal just literally slides upwards,
get your red node on there get a nice good connection,
and then get the black node on the other negative terminal and again we should
have a good reading, this is a good idea to test the actual battery if you've
got a poor reading in the front then obviously you've got a bad connection
with the wires from the back of the battery to the front at the engine where
the starter motor is, and there's a link above now about how to easily turn on
and off your air conditioning in your Mercedes S-Class, but now it's time for
a lovely cup of tea. If you found that video useful please subscribe by pressing this button
down here I really do appreciate you visiting my channel everyone, if you'd
like to select any other videos around here that would be really cool and be
sure to hit that Bell notification tab.