rear brakes

[ls400lpg]

my back brakes are not working?

 

Any ideas as the pedal is pushing to floor nearly?

And i just topped brake fluid on sat>

[cruisermark]

Brake fluid should not need tioping up unless there is a leak somewhere in the system - I would get the braking system check front to back for leaks

[ls400lpg]

thanks. Would kwik fit be able to do it as it is the nearest

[ls400lpg]

No leaks on the floor?

[Connor2x4]

No leaks on the floor?

Might not leak to the floor. Might be pooling somewhere. Brake fluid strips paint so look on the insides of your wheels or engine bay.

As said above brake fluid doesn't need topping. You must have a leak allowing air in and fluid out.

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[steve2006]

The brake pipes running along the back axle are a common corrosion failure on MOTs, or a flexihose.

[ls400lpg]

I will check now. Thanks

[ls400lpg]

No brake loss.

When I topped up brake fluid on Sat. there was no loss since?

[Tinonline]

Yes Kwik Fit might be able to help. If it’s a pipe they can fix.

Seems like leaking servo or master cylinder 

or rear caliper seized but I doubt caliper.

[ls400lpg]

checked both just now. they seem no leaks

[ls400lpg]

Just pumped the brakes up and down several times. Now brakes are more solid. Will need to check though for any internal leaks

[MLW]

Probably a master cylinder internal leak. Brakes never leak/need topping up unless there is a problem.

[DaKa]

It will definitely pay to bleed the brakes starting with the rear being furthest away from the servo, so you will need someone to pump the brakes for you.

Pumping the brakes repeatedly quickly will indeed make the pedal feel more solid as any air trapped is compressed and compressed again each time you push the pedal in succession. It will expand again given a short time.

Fluid does perish in the pipes especially as a result of heating - not everyone bothers to refresh their fluid at intervals.

If the fluid level has dropped, it is an indication of a leak somewhere, so follow the pipes from the servo as best you can and feel any corroded sections and joins for any weeping - it should be bone dry, Leaks can occur at the joins to the master cylinder so be sure to have a good feel underneath and around.