GranTurismo Brake Pedal Travel

[namaste]

First post here. I test drove a GranTurismo yesterday ('09 4.7 S) and noticed a fair bit of travel in the brake pedal before feeling the bite of the brakes. Its my first test drive and was wondering if this is normal for these cars or a potential fault? I wouldn't say the brakes were spongy at all, there was just an obviously noticable distance change between foot on accelerator pedal and getting the biting point on the brakes.

 

[CatmanV2]

Can't say I have that issue with my 4.2 If anything they tend to bite somewhat unexpectedly, but they do need some pressure if you're in a hurry to stop, as it were.

C

 

[bigbob]

It depends what car you came from. For instance, with many Audis' you just need to dust the brake pedal to stop.

 

[Doohickey]

Mine felt similar when I first drove it but I got used to it after a while. It does depend on what you are used to. Having said that, I had the discs and pads replaced at the last service and that's made a big difference to the feel and stopping power.

 

[StuartW]

Mine felt similar when I first drove it but I got used to it after a while. It does depend on what you are used to. Having said that, I had the discs and pads replaced at the last service and that's made a big difference to the feel and stopping power.

Agreed

 

[CatmanV2]

It depends what car you came from. For instance, with many Audis' you just need to dust the brake pedal to stop.

Yep. Changing between the 147 and the GT can be interesting

C

 

[namaste]

Thanks for the info. The pads were a little low but still life left in them.

 

[hoyin]

I had mine bled and that made a big difference. And the bite is a lot higher.


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[namaste]

Just to follow up on this. I bought the car and got a service and mot included. They ended up changing all disks and pads front and rear and new brake fluid. The bite is now right up the top. So either the brake replacement, or bleed did the trick.

 

[bigbob]

Good news, that's an expensive Christmas present.

 

[granturismo]

I was told brakes need to be bled using high pressure pump or something like that which not all the independent dealers have so if its spongy its probably not been bled properly.

 

[philw696]

Down here we bled them old school and never had any issues.

 

[voicey]

If you're bleeding the ABS unit via the SD3 then you need a pressure bleeder. I also nearly always use a pressure bleeder to do the brake fluid flush during a service for a number of reasons...

- I don't need an assistant
- I can do something else whilst the fluid is draining
- There no danger of damaging the master cylinder

However the old school method works just as well and is actually quicker to pump the fluid through the system.

Also, the bleeder is nothing special, mine is homemade from a garden sprayer!


As the OP found, poor brake pedal feel can usually be cured with a proper bleed/flush of the system, something that is often skipped by many service centres.