Almost no brakes without ignition

[JK_vantage]

Had a bit of a scare today wanting to roll my car back by a meter on the driveway. Thought I'd just release the hand brake and noticed i had to put a lot of pressure on the foot brake to get it to stop... This normal because no power?
V8vantage 2010, manual

[john ryan]

Yes, no vacuum in the servo because engine not running.

[Cold]

Pretty much any car these days will feel the same. It's not an Aston Martin peculiarity.

[MitchT]

My 20 year old E36 3 Series is exactly the same. Absolutely normal.

[pschlute]

You were lucky you didn't need to turn the steering wheel also.

[telum01]

They're called "power assisted brakes" for a reason
Basically, when you press the brake pedal, you're getting a big boost from the master cylinder to pressurize the brake lines. Without that, you better push reeeeeallly hard to get the brakes to do anything.

[JohnG1]

pschlute said:

You were lucky you didn't need to turn the steering wheel also.

In my old V8V I suffered from a manufacturing defect in the fuel system.

After filling the tank and driving in a spirited fashion the engine would cut out. Try driving at 50mph towards a 90 degree turn with a brick wall ahead. Steering and brakes both utterly non-responsive. Managed to dip the clutch and restart before imminent mortality...

No engine - brakes like pushing on a concrete floor. Same level of response from steering

[rancidswan]

JohnG1 said:

In my old V8V I suffered from a manufacturing defect in the fuel system.

After filling the tank and driving in a spirited fashion the engine would cut out. Try driving at 50mph towards a 90 degree turn with a brick wall ahead. Steering and brakes both utterly non-responsive. Managed to dip the clutch and restart before imminent mortality...

No engine - brakes like pushing on a concrete floor. Same level of response from steering

Hi JohnG1

Could you elaborate on what this issue was please, plus - what was the fix? From memory a few people have mentioned the same fault on these forums, but I don't think I've seen a description of the resolution.

rancid

[JohnG1]

rancidswan said:

JohnG1 said:

In my old V8V I suffered from a manufacturing defect in the fuel system.

After filling the tank and driving in a spirited fashion the engine would cut out. Try driving at 50mph towards a 90 degree turn with a brick wall ahead. Steering and brakes both utterly non-responsive. Managed to dip the clutch and restart before imminent mortality...

No engine - brakes like pushing on a concrete floor. Same level of response from steering

Hi JohnG1

Could you elaborate on what this issue was please, plus - what was the fix? From memory a few people have mentioned the same fault on these forums, but I don't think I've seen a description of the resolution.

rancid

I did a write up on here. Try Google - the forum search is rubbish.

Failing that, PM with your phone number and I'll explain. Answer is long and involved.

[MitchT]

pschlute said:

You were lucky you didn't need to turn the steering wheel also.

Been there (E36 situation I mentioned above). Camshaft sensor fault caused the engine to cut out. Had to get round a bend and stop the car on a busy road. Focused the mind a little!