Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Brake Fluid change problem
#1
Hi all,

We are trying to change the brake fluid on my ABS 16v M59, starting at the back we can't seem to get air out of the system. Valve open, pedal down, splutter air and fluid, close valve, pedal up, repeat ad nauseam. Reservoir is full, but fluid is drawing out of it slowly. Are there seals that are known to go? There are no obvious leaks on the system.
We don't have any one way valves or pressure blessing equipment to help, sadly.
Do we need to do anything with the bias valve in the back? Load up the boot to push down the suspension maybe?
Reply
#2
If fluid is being drawn out of the master cylinder reservoir and the only point of exit is the rear brake you're working on, and fluid is coming out of the bleed nipple, then your efforts are being rewarded. Close the bleed nipple each time just before the down stroke is conpleted.

Just don't press the brake pedal ALL the way down to the floor. In normal braking, this never happens, so you could be pushing the seals past their normal point, which might not do them much good.
Gravity
Reply
#3
(03-06-2018, 12:57 PM)Collapsedsuspension Wrote:  Do we need to do anything with the bias valve in the back? Load up the boot to push down the suspension maybe?

 I don't think the berlingos with ABS have a bias valve, it would defeat the purpose of the ABS. Its there to stop the rear brakes locking up the rear brakes when lightly loaded. Just like the ABS system.



 The berlingo brakes are notorious for getting to bleed properly
2006 2.0Hdi Berlingo
Reply
#4
Thanks chaps. I'll try the Lexia bleed facility too.
Reply
#5
If you're only changing the fluid and you haven't opened the system to fit any new components and you haven't let the fluid level drop below the minimum the air you are seeing must have always have been there!

As brodfather says the brakes are difficult to bleed, especially the rears, try raising the rear of the vehicle on ramps as high as you can get it.


.
My vehicle .... 2006 (m59) Berlingo Multispace Desire - 1.6 HDI 92 
Reply
#6
Or use a pressure bleeding kit,
Is there anywhere near you that will rent one? They're very simple bits of kit. I've had mine for years, and i think it cost me around £40. Helped out a few friends with it, so it has proved its worth..
Gravity
Reply
#7
The master cylinder reservoirs are a bit low and the baffle in the reservoir is a bit high and the fluid wont go over the baffle so it empties at the back but the front is full of fluid. You need to get the front of the vehicle higher than the back. If the vehicle is sloping forward you have no chance.

Trust me on this one been there done that!
Reply
#8
Yes, you are very correct about the baffle in the master cylinder reservoir, you have to keep it full almost to the brim for it to flow over into the rear section.

.
My vehicle .... 2006 (m59) Berlingo Multispace Desire - 1.6 HDI 92 
Reply
#9
(04-06-2018, 09:12 AM)jj9 Wrote:  Yes, you are very correct about the baffle in the master cylinder reservoir, you have to keep it full almost to the brim for it to flow over into the rear section.

Good to know that. Thanks. Never done a brake fluid change on a M59 before - that joy is coming up this week.
That's where a pressure bleeding setup is good - it doesn't matter where the internal baffle is in the reservoir, because the kit gives a constant supply of its own brake fluid.
Gravity
Reply
#10
Mine is an 04.i have never changed the brake fliud,i also have a 1995 mercedes that i have never changed the fliud on either.Its such a pig job if it aint broken dont fix it,works for me.
Reply


Forum Jump:


Users browsing this thread: 1 Guest(s)
[-]
Welcome
You have to register before you can post on our site.

Username:
  

Password:
  




[-]
Search
(Advanced Search)

[-]
Latest Threads
Dingo - 05 - 2.0 HDI
Last Post: coakers
Today 10:13 AM
» Replies: 80
» Views: 16499
Panoramic sunroof (+2008) model for weekend camp...
Last Post: Elbie
Today 10:02 AM
» Replies: 5
» Views: 607
Awning for Berlingo Micro Camper
Last Post: Elbie
Today 09:56 AM
» Replies: 7
» Views: 1470
Engine Fault Light Error Code P1434
Last Post: kingy1912
Today 08:25 AM
» Replies: 8
» Views: 658
Bypass heater matrix?
Last Post: Zion
Today 08:01 AM
» Replies: 1
» Views: 423
Reverse lights - fuse
Last Post: Hardnut
Today 12:42 AM
» Replies: 7
» Views: 3085
Grizz' Prozac for the Soul - Berlingo Multispace
Last Post: jj9
Yesterday 09:58 PM
» Replies: 353
» Views: 45244
Front end vibration
Last Post: kingy1912
Yesterday 09:20 PM
» Replies: 8
» Views: 1183
Radio wiring.
Last Post: Zion
Yesterday 06:56 PM
» Replies: 9
» Views: 1300
Eurotunnel Height Restrictions
Last Post: geoff
Yesterday 11:27 AM
» Replies: 9
» Views: 764

[-]
Recent Visitors
Locations of visitors to this page