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post #1 of 4 (permalink) Old 7th August 2015 Thread Starter
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Spongy Brakes

Hi everyone,

Basically this week being an idiot I managed to drain the battery on my 2006 Renault Clio Dynamique S Dci106.

It's my first car and I'm learning a number of lessons relatively fast it seems.

Anyway, I got a new battery fitted (it was the original battery still in there) and since then I've noted the brake pedal seems spongy, when I pump it with the car running it makes like a squigy/air sound continuously. When the car is completely off, pumping it does that for one or two presses and then the pedal goes hard as I'd expect it to be. Starting the car again it becomes spongy again.

The brakes still work and apply straight away as they did before (I think, first ever car still pretty clueless) but the pedal seems lighter and definitely has some travel in it.

First of all, does anyone know what this maybe? I find it weird how it goes hard when the engine is off but starts again as soon as it's running...

Other than that, should I be worried about this? And if yes, is this an expensive fix or something I could do myself? (If I can do it myself, links to any how to guides would be really helpful).

If you need any more details just ask, tried to be as thorough as I can be but I don't know what I'm talking about


Currently in LoganT's garage:
Clio MK3 1.5 Dci106 2006
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post #2 of 4 (permalink) Old 7th August 2015
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Re: Spongy Brakes

Have a read of the thread in the link below

help please thanks


Please take the time to enter your vehicle details in the "What's current in your garage?" box.

To do this:
Hover over the "TOOLS" tab at the top of the page
> then in the dropdown click on "User Dashboard"
> click on "Edit Your Details" at the top Left hand side.
> scroll down to the "What's current in your garage?" box and enter your vehicle details.
> Once the details are entered scroll down to the bottom of the page and click "Save Changes"

> Done.
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post #3 of 4 (permalink) Old 8th August 2015
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Re: Spongy Brakes

As TTT says, hearing the servo is no issue.
And all brake going hard after a few pumps with no engine is normal. Used all the stored vacuum.
Be a lot more worrying if they didn't.

May just be feel, may be indicating that the brakes need bleeding, could be old fluid or a pad jamming in a caliper.

A free brake test may be best bet but do not commit to work being done before sharing the results with us.
They offer these free tests to entice people and often load the work needed.
So just be wary.

Dunno that battery would or could have any effect so would put any connection down to simple paranoia
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post #4 of 4 (permalink) Old 8th August 2015
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Re: Spongy Brakes

Also worth a read


Currently in ballibeg's garage:
2008 Trafic passenger 2.0dci 115
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brakes , spongy

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