P38A reoccuring abs failure

vilguy · Sep 21, 2015

I occasionally get abs failure - when it does happen it happens right from the off. And disappears whenever I come back to it, so I'm suspecting a sensors being stupid. Whats the best tool to diagnose it? Hawkeye?

Not particularly fussed, its just frickin annoying seeing a light on the dash

Only does it once a week or so.

wammers · Sep 21, 2015

vilguy said:
I occasionally get abs failure - when it does happen it happens right from the off. And disappears whenever I come back to it, so I'm suspecting a sensors being stupid. Whats the best tool to diagnose it? Hawkeye?

Not particularly fussed, its just frickin annoying seeing a light on the dash

Only does it once a week or so.

Could be brake lamp switch needs resetting.

vilguy · Sep 21, 2015

hmmm theres a thought. does it trip out the abs if its just playing up a little bit?

brake lights do work

wammers · Sep 22, 2015

vilguy said:
hmmm theres a thought. does it trip out the abs if its just playing up a little bit?

brake lights do work

Switch is a two pole make and break unit. When brake is off one pole is made. When brake is pressed that pole breaks and the other pole makes. They have to cycle cleanly. If they don't you get ABS fault on dash display. Instructions in RAVE how to reset it.

vilguy · Sep 22, 2015

ah ill have a look ta.

Grrrrrr · Sep 22, 2015

Also, sometimes the sensor just needs to be pushed in all the way with some of that paste to make sure it doesn't come out again. Easy check.

gencybay · Sep 22, 2015

Grrrrrr said:
that paste

.............called?

G~

Grrrrrr · Sep 22, 2015

gencybay said:
.............called?G~

Some sort of white stuff on mine. According to RAVE the P38 requires:

Silicone grease: Staborags NBU - Wabco 830 502,0634
Wacker chemie 704 - Wabco 830 502,0164
Kluber GL301

wammers · Sep 23, 2015

It's thick white silicon grease similar to the type used on computer CPUs to heatsinks.

gencybay · Sep 23, 2015

Grrrrrr said:
Some sort of white stuff on mine. According to RAVE the P38 requires:

Silicone grease: Staborags NBU - Wabco 830 502,0634
Wacker chemie 704 - Wabco 830 502,0164
Kluber GL301

Thanks. I have one that slips a bit from time to time. Will get hold of some.

G~

wammers · Sep 23, 2015

gencybay said:
Thanks. I have one that slips a bit from time to time. Will get hold of some.

G~

The grease doesn't hold the sensor in the circular brass coated pressure collar does that. http://www.island-4x4.co.uk/sensor-bush-britpart-ftc1374-p-1890.html

P38A reoccuring abs failure

vilguy

Do'er of stuff and the like

wammers

No longer with us, RIP

vilguy

Do'er of stuff and the like

wammers

No longer with us, RIP

vilguy

Do'er of stuff and the like

Grrrrrr

Technician, Bodgit & Scarper Ltd

gencybay

gatvol

Grrrrrr

Technician, Bodgit & Scarper Ltd

wammers

No longer with us, RIP

gencybay

gatvol

wammers

No longer with us, RIP

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