Need brake sys parts: master cylinder cover & brake pedal sensor on booster

850forum · Post by **850forum** » 21 Dec 2020, 14:16

Out of production, mechanic checked his Volvo dealer to get the current PN & no joy with online junkyards.
My ABS light stays on.

He found one of them on a German site:
PN 1027160
Sensor, Pedalweg Bremse
This goes on the BOOSTER, not the master cylinder. Mechanic says it senses pressure.
Its NOT the electical switch on the brake pedal that lights the brake lights.
Priced at 96 Euros plus postage.
SKANDIX Shop Volvo Ersatzteile: Sensor, Pedalweg Bremse 271892 (1027160)
So these must be 3rd party parts (ersatz).

PN 9122562
Cover. Master Cylinder.
Mechanic says this is actually built in to the cap, or the cap is integral to it, so it would be part of item 5 on the upper exploded diagram on the page labeled "Master Cylinder. -1995. -1993. The diagram drawing ID on page lower right says 5277859s.

The lower diagram labels the knurled cap portion as 12 and an electrical connector going into the cap assembly as 13 ( PN 9162107 Housing AWD Control Module Hydraulic Pump Master Cylinder 2 Pole 2WD Servo...) .

The cap screws into the Fluid Reservoir.

Third item:
As long as I'm asking, years ago an electrical part failed and it comes in two varieties - with and without the optional TRACS system. The TRACS part was 3x the price, so I replaced it with the non-TRACS. If I could find the TRACs version, I might like to get it operational again. Its a hand-sized, sort of 3 sided flat metal box with a very long multiple-pin connector, and it is held onto the plug with a lever.

850forum · Post by **850forum** » 28 Dec 2020, 06:16

Crickets ?
Went to look at Christmas lights the other night - and discovered that I HAVE NO BRAKE LIGHTS !!!
Mechanic says it must be the German part.
This is distressing.

850forum · Post by **850forum** » 28 Dec 2020, 06:46

I think I found the "cap" part, but a different PN shows:
https://www.skandix.de/en/spare-parts/b ... d/1074164/

Main page » Spare parts » Brakes » Brake Master Cylinder » Cap, Brake fluid reservoir brake fluid » 1074164
Cap, Brake fluid reservoir brake fluid

Volvo 850, C70 (-2005), S70 V70 V70XC (-2000)

Genuine product from vehicle manufacturer

850forum · Post by **850forum** » 28 Dec 2020, 06:51

And the TRACS module, but the core charge is more than the refurb part itself, and I don't have the broken module anymore:

https://www.skandix.de/en/spare-parts/b ... s/1006748/

Main page » Spare parts » Brakes » Brake Regulator System » Control unit, Brake/Driving dynamics » 1006748
Control unit, Brake/ Driving dynamics

Volvo 850

Post by **abscate** » 28 Dec 2020, 07:10

Go to the Midwest ABS website and reach out to mattymoo for the ABS module. The solder cracks on the power connections.

There are at least three variants I know of and probably 9 part numbers you will have to research comparability

Post by **Sveedy** » 28 Dec 2020, 07:42

Not sure where your located but there is a '95 850 turbo wagon in my local junkyard. Just got there about a month ago and was apparently running but was hit in the side. If you could post a pic of what you need I could see if it's available.

Post by **abscate** » 28 Dec 2020, 17:22

What's the year and model we are looking for here, and what traction options are on the cat please ?

850forum · Post by **850forum** » 23 Sep 2021, 20:48

Finally ordered parts from a place in Germany... geez that was a couple months ago, gotta check back with them... had to do a bank draft to pay for the stuff ...

The other day the headliner fell halfway down...

Thanks for the replies I never checked back to read...