I have the air compressor powered 1 man brake bleader ( I used that one to check fronts for air in line) and the vac pump style. Problem is air seeps in around the threads of the blead port and It looks like you have air in lines. Star scan sounds like a 2 or 3 man job to flush fluid. I tryed running through wet leaves today to activate antilocks. Antilocks were working , thumping away but after afew times peddle dident get any better. Im stumped??? Guess time to lay van up at MB dealer and take out the credit card$$$$$$$$$.
With a pressure bleeding tool, it's a one man job any way you slice it.
My bleed kit has a bottle and an adapter which fills the master cylinder as the system is flushed so you don't end up sucking air through it and into the system.
Even w/o a tool to fill the master cylinder, it's a one person job.
The difference is that you'd have to fill the master cylinder as you move between calipers.
The star scan brake flush procedure will turn on the ABS module.
As you bleed the calipers, the ABS components will exercise, flushing the system.
A traditional bleed will miss 4 out of the 12 valves and two return pumps critical to proper braking functionality.
Fill the master cylinder to the top before you start on the first wheel.
Since you've never done this before:
Connect star scan, and turn on star scan
Turn the ignition key to position 2
Once star scan has booted, figured out that it's connected to a Sprinter, follow this menu path:
ECU View -> ABS -> Misc Functions -> Bleed Brakes
Follow the star scan prompts.
After the first wheel is done, make a mental note of how much fluid was consumed.
The second wheel will use the same amount.
Both these wheels take about 30 seconds of pedal work.
The third and forth wheels will use twice as much fluid as the first and second and take about 60 seconds for each caliper.
This is where the procedure gets noisy -ABS noise - and the pedal gets harder to push (scoot up in the cockpit so you don't trash your leg muscles).
However, if you insist on going to an MB dealership:
Specify that you'd like an "exceptional brake bleed."
It's in their Workshop Information System (just call it "WIS" - their eyes will get big and they'll pay attention).
Tell them that you know there's a WIS document which covers bleeding brakes with star diagnosis system (call it "SDS" - this will scare them because you know more than everyone else the service advisor meets).
If I were you, I'd save the cash and just do it with the star scan tool on Saturday morning.
Oh, this goes a lot faster with the wheels off.
-Jon
PS: keep the box end of your 11mm wrench on the bleeder valves so you can close 'em off fast after star scan tells you to move to the next wheel.
