Possible BOMB problem???

[bob69]

Hi All,

Had the PAS pump changed not so long ago (actually onto my 3rd now - don't buy the cheap ones from GSF) but i'm now getting the hydraulic warning light again and the brake pedal is solid in the morning before i start the car, should it be like this or should i still get brakes after being parked up overnight??? When i do the Bomb test (engine ran then off and pump the pedal) i get over 50 pumps before padal goes hard so not sure if it is the Bomb, hope it isn't the pump again...

Cheers,

[johne]

The bomb is the only item in the brake circuit able to store pressure so I don't see how it could be a pump fault.

My hydraulic warning light often comes on in the mornings if the pressure hasn't come up enough before auto-check times out, but the pressure does come up just not in time to keep auto-check happy. As the brakes work fine and auto-check never comes other than occasionally at start up, I intend to continue ignoring it.

John

[mcandmar]

Sound like a worn bomb to me, my cq does that after 3-4days sitting but always recharges quick enough not to trigger the autocheck. My S2 and S4 on the other hand do that in a matter of hours, and always trigger the autocheck. Its on its way out IMO.

[HPmuirt]

Sound like a worn bomb to me, my cq does that after 3-4days sitting but always recharges quick enough not to trigger the autocheck. My S2 and S4 on the other hand do that in a matter of hours, and always trigger the autocheck. Its on its way out IMO.

Mine has just started coming on continually after spending about 2 years beeping in the morning like mcandmar's, so I am looking for a new BOM too me thinks.

Any recommendations as to where to get one now that VAGParts are no longer with us?

Cheers n

Si

[Fat Audi 80]

Quattro Corner or the Citroen spares bloke...

[s2_bo]

Get them from Paul @ custom autocraft in Luxembourg. He's da man for bombs

[mcandmar]

I agree, i have a few on order as you cant beat his price.

[bob69]

Thanks for the advice but still not sure its the Bomb 'cos i can trigger the warning light and beep when the car is running just by repeatedly pumping the brake pedal a few times??? This happened with the last pump also and that eventually just failed (very heavy steering and very little brakes - not fun getting to the garage ) Any more ideas

Cheers,