smashymike wrote:I'm gonna do mine soon so what was the exact procedure i need to follow? Is changing the LHM the same as bleeding the brakes or am i way off beam? MY Xant has 'intermittent' braking shall we say, as though the abs is doing too much of thework. It does stop but i'm sure that there's air in the circuit somewhere, most likely the rear (are there two separate braking circuits?) so i've penned in a sphere change for the rear soon. But i've always thought the LHM business would improve things. Sounds like it could be a good move. As far as i'm aware this has neever been changed. Cars a 95(N) TD SX .... so what do i do and don't do? Ta.
For the low cost of the change id change it, i would guesstimate mine had not been changed for 3+ years, i think two years changes is more suitable than three year changes.
To change the LHM, Haynes has the correct info but i believe it’s in the wrong order. I would do it something like this:
1) Start engine, put suspension to lowest, open 12mm pressure screw about 1/2 a turn (you’ll hear a 'whoosh' noise), wait one minute, then stop engine
2) Remove fluid hoses from the plastic support holder on the lhs of the reservoir.
3) Disconnect the green/brown-wiring plug
4) Undo the two retaining bolts on the back
5) Remove the plastic support pipe holder off the reservoir completely
6) Remove the centre section black clip
7) Pull the front of the LHM reservoir out of its retaining hole, you may need a screwdriver to gently lever the reservoir out.
8 ) There should now be some flexibility in the centre section and the reservoir, to move the centre section out without removing the pipes, you’ll will need to turn the reservoir towards the hoses and slowly pull the centre section out. The moon shaped filter may come loose, but you can take it out of the reservoir later
9) Drain old LHM, remove and clean filters in petrol and dry, clean the LHM reservoir
10) Re-fit filters; ensure the clip at the bottom of the filters is securely holding both filters.
11) Put the centre section back into the reservoir (this is easy as the reservoir is empty), refit the reservoir, re-fit the plastic support hose holder, refit centre section clip, refit hoses back in holder, refit the green/brown wiring plug
12) Refill reservoir with initially around 3litres of LHM, start car, put in high, wait a couple of mins, then close the 12mm bleed screw.
13) As the suspension is in high check the LHM level refill until the correct level, do citrobics a few times, recheck level
I found 4litrs of LHM is enough.
