Brake pedal pulsing

[itchyfeet]

Hi all,
seems I've asked a few questions lately but here goes my next one, for the last couple of days my brake pedal has pulsed the first time it is used. After that all seems ok, its almost like the abs is kicking in but from very low speed. Both exits from my drive or work are only about 15mph and it does it until i come to a stand but then is fine for the rest of the journey.

ABS module/pump gone or on its way out?

cheers.

 

[Swiftly]

Not really sure, first thing I would check is to see if there are any codes stored?

 

[Ewazix]

First suspect must be an ABS sensor or the ring that it reads, seems they can get dirty or damaged and has been discussed recently

http://www.z4-forum.com/forum/viewtopic.php?f=3&t=94662&p=1392995&hilit

 

[itchyfeet]

Thanks Guys,
the pulsing of the brake pedal which finished up with also abs, brake, dsc and tyre pressure lights illuminated turned out to be a faulty drivers side speed sensor and hub assembly. Sorted now.

itchyfeet.

 

[Ewazix]

Thanks Guys,
the pulsing of the brake pedal which finished up with also abs, brake, dsc and tyre pressure lights illuminated turned out to be a faulty drivers side speed sensor and hub assembly. Sorted now.

itchyfeet.

Glad it's sorted