Hello Guys and Girls it's Lurgs here. Welcome to my Channel and today in my
Mini World it's the ABS wheel speed sensor
replacement. Now I've had an ABS light on the dashboard either one of these two or
just one on its own and basically this is an MOT failure it means your ABS is
not working properly. Now the ABS sensor works on the wheels so the wheel spins
around and it works out if it's going at the right speed compared with the other
wheels. So anyway plug in your OBD2 Reader computer
there's another video about how to do that and i've got this error
'Front left wheel speed sensor' so today I'm going to be replacing the front wheel speed
sensor cable. I mean I'm hoping it is the cable, that's the normal first port of
call, and just a little secret the main dealer and any local car
dealers wanted about £90 for the ABS sensor lead, I managed to get it
off a well known auction site for a fraction of that cost.
So anyway go into the boot and you will need the tamper proof unstealable wheel
nut bolt thing, because we've got to get off the front left wheel. On that OBD2
reader computer where it says the front left it's always as if you're
sitting in it. Right so what you need to do is just gently loosen all four nuts
while the Mini is on the ground then you've got a bit of resistance.
Make sure the handbrake is on and it's in first gear so it can't go anywhere.
Once you've actually loosened them you need to jack the Mini up. Now the
Mini is so low I had to roll it up onto a small bit of wood to get it a bit
higher so I could get the ramp underneath it, and then just Jack the car
up once the wheels lifted clear of the ground.
Right and a safety feature here always always always put blocks of wood
underneath the car because if you're working underneath the car and that Jack
fails the car will fall on you and you will most likely die, so you don't want
to die so make sure you just put some blocks of wood underneath the car just
for peace of mind, because it does happen, it's very rare but it does happen. So now
when you take the wheel off I always like to mark the wheel and the hub just
so that when I put the wheel back on it just goes in exactly the same place,
because obviously if your wheel is slightly out of balance or it's balanced
with the hub just put it on exactly where it came from then you know you've
got no issues with things that will wobble. So just lift that wheel away
[Cough] Excuse me. Just place it on the ground.
Right so here's the disc and the ABS sensor lead is this one and that
disappears up behind the wheel arch there and it comes down here it just
sits on a little clip and that is the actual ABS sensor there and that goes
obviously down into the the wheel hub so this has probably been on there for
15 years and never been moved, so I'm just going to give it a quick squirt
with WD-40 and just leave that for 10-15 minutes because I think I'm
gonna have problems getting this out. Just going to give it a quick brush with
my Missus toothbrush (don't tell her) and then you're gonna need an Allen key
because this is an Allen key bolt, now make sure it's really important this is
a good fit I mean it's got to be absolutely stuck in there because you do
not want to thread that. I found this really tough to get going.
And this is a few minutes later after
giving it a few bashes of the hammer and just gently wiggling it with the Allen
key so anyway that's the 'Oh Hello', oh yeah for close-up work I have to put me
Reading glasses on now, epic! So now this really really really doesn't want to
come out so gave it another squirt of WD-40 and I'm just getting a screwdriver
just on either side I mean be quite gentle here just kind of just manoeuvre
it about just get it moving because as I say it's probably a bit of rust in there
and it's stuck fast give it a little bit of a bash with a hammer again very
gently and as you can see it's just starting to come away then you can get a
pair of pliers on it just keep wiggling it wiggling it wiggling it and then
trying to lift it out until eventually it will actually come loose. It just
slides in it's just been in there a long time so just keep wiggling it and
eventually it will come out and here we go it's almost out look you can see how
dirty it is and you can see why the sensors fail after a while so just keep
moving it keep moving it [Sings] I like to move it move it I like to move it move it he
likes to move. Right eventually it's coming out superb and look at all
the gunk on that I mean you could clean it all up and put it back in and try it
again but I got a brand new sensor lead for such a good price by the time you've
got it all off let's just swap it over.
So that's actually the sensor what it's reading so if I just jiggle the wheel
about a little bit you can see it moving so the sensors picking up that movement
comparing it all the other wheels to see if you've got wheel spin or there's a
problem so as you can see this is filthy dirty and
oh yeah when you put when you put that bolt back in which holds the sensor in
make sure you just use a bit of copper grease. Oh lovely cup of tea. Oh hello my
doggies not giving me much help here.
So anyway this is the new lead which I got from a well-known auction site brand-new
so we just need to fit that in replacement of the existing one right so
I'm just going to match it all. Make sure it all looks the same and it does,
so the blue plug disappears off up behind the inner mudguard wheel arch
which is just a plastic wheel arch so what we need to do is just not remove the
entire wheel arch you just need to loosen as many bolts as possible just so
we can get access. These are just plastic
screw nuts so just get all of these out and there's two metal ones I
think this is the metal one. This is actually what they look like so you push
them in they expand and then that just clips them in obviously these could be
brittle or might break but you can just buy some new ones, so this is all the
holes here where I've removed all the bolts and the nuts and then there's that
one at the top and also there is just one more at the front just there so you
just need to undo that one as well. Once you've done that you can then get enough
access to be able to move that out of the way and just give you access to
the ABS sensor plug
You can see it's nice and loose and I've got access so there's the ABS wheel
sensor black lead that's the end of it the blue plug right so we've got good
access now. Now my advice is it's just my personal opinion I'm not a mechanic or
anything, when I replace this as your going to see I'm just going to replace
it bit by bit, I'm not going to take the old one off completely and then put the
new one on completely. I'm just going to replace it as it goes so going to do the
blue bit first then I'm going to do the middle bit and then I'm gonna do the end
bit, that way there's no mistakes about where the routing is or did it go there
did it go here. Right so let's get the new plug you can only go in one way but
obviously make sure when you push it down it is the correct way because you
don't want to break anything obviously this is tricky with one hand, basically
just pushes all the way down it doesn't turn or twist or anything it just
basically pushes until that clip goes click ok so that's the first job done.
Right now we need to follow the path of where the old one went so basically when
you unclip the old lead put the new lead in its place and then tie that clip back
up, so there's there's quite a few if you follow it it's very easy okay so that's
the the old lead there so just pull that out,
And then once you've done that we can put the new lead on there it's
exactly the same fitting so that will just push into there there we go so now
you can see the old one there on the right and the new one on the left so I'm
just following the path of where the old one went this is just a lot easier
because then you cannot get lost, so you've got the new one on the left there
and the old one on the right so the next part to do
it's on this strut it basically just pushes in on a piece of rubber and that
just holds it in place there so let's pull the old one out and push the new
one in. Make sure you do those cable ties up obviously mine are undone
at the moment but I did do them up I promise Scouts honour
So just give that a little tap with a hammer and that should just slot in
there we go so now we're on to the final piece of the jigsaw not that it is a
jigsaw. So this is why I did it bit by bit because you want to make sure all
the routing is correct obviously this is the last bit of this
cable it came underneath those other cables go underneath that I think that's
the brake pipe so this actually was quite stiff to get in, but it did go in
eventually this is just comparing the actual sensors that's the old
one on the left and the new one on the right. So it did go in eventually just took a bit
of wiggling so just put that bolt back in the Allen bolt and just make sure
it's got the copper grease on the thread, and just showing you the routing now so
the new cable is on so it goes from there to the back underneath round there
and into this into the wheel so that's basically showing you the routing of
where it's gone, it's fairly simple job fairly simple so let's put the inner
wheel arch back on I've just speeded this up.
All right that's all in all the screws and nuts are in right so they all
tightened up so let's get that wheel back on. Make sure you put copper grease
on the wheel nuts really important this stuff is magic, just means next time you
have to take the wheel off it just makes it a lot easier, a lot easier this
stuff is superb any sort of copper grease. All right make sure the wheel is lined
up which you did earlier with the mark, don't have to do that it's just my
personal choice and my advice is when you're putting the wheel nuts back in
always tighten them by hand first never go for one of these power guns and just
ram it in because if you cross thread it, that's a world of pain that you don't
need, so always do them up with your fingers first to get them going, the same
with any nuts really. And then while it's still up in the air get them half
tight and then when it's back down on the ground then really tighten them up.
And tighten them up diagonally across, right so we're back in the Mini again
now you might think oh I need the handheld computer reader and I've got to
reset the fault codes. Actually for the ABS wheel speed sensor you don't
have to reset the code if you just go for a drive it will automatically know
that it's fixed because the readings start coming back to the computer so
this handheld reader to reset the codes you do not need that, which is great news!
Well let's go for a drive.
[Shouts] Whoa nice one Lurgs, nice one yeah baby, the ABS light is off!
Tanks to my passenger for filming and
the light has gone so we have fixed the ABS wheel speed sensor fault.
Brilliant so Guys and Girls it looks like you don't have to reset the code
using the computer just go for a drive and it automatically understands
that you have fixed the problem. Nice one , time for cup of tea.
Great job Guys and Girls. Please subscribe by pressing this button down
here for more How To's, Helpful Tips and Life Hacks and if you'd like to select any
other videos around here that will be cool. Appreciate you visiting my channel.