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Old 01-10-2003, 05:48 PM
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Join Date: Apr 2001
Location: fort worth
Posts: 363
brake fluid

87 300E

how much brake fluid do I need to buy to flush the system and are there significant differences between brands?

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Old 01-10-2003, 06:16 PM
Join Date: Mar 2000
Location: Gainesville FL
Posts: 6,844
I was reading the spec for flushing (2 yearl servicing) a new BMW the other day and they were saying 250ml per wheel. A liter ought to do it.
Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician
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Old 01-10-2003, 07:25 PM
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Join Date: Jan 2002
Posts: 352
It used to be that the MB fluid was the best out there with the highest wet and dry boiling points but there are some good alternative brands out there. You could use MB's or OEM Dot 4+ which will give you factory results. But, I use Valvoline Synpower ABS fluid on my 300E mostly because its cheap and it works well. Their new ABS formula has higher boiling points than even the MB stuff.

My first use of the product was when my brake fluid was looking like used motor oil. It was very black. All I did was suck out the container and refill many times over a period of a couple months. (Used about 3 bottles to do the job) The dirty brake fluid through the process of diffusion (aided by high temp and pressure) will distribute into the clean fluid until equilibrium is reached. Once my mechanic was changing the brake pads, he bled the brakes and it was slightly yellow. Now my brake pedal feel is factory firm and I never pulled a wheel off.
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Old 01-10-2003, 11:10 PM
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Join Date: Jun 2000
Location: Near Williamsburg, Virginia
Posts: 364
If you are driving the car on the street Castrol or the MB brand are fine. If the brakes get severe use like an occasional weekend on the track Pentosin and ATE Blue have boiling points about 50 degrees higher.
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Old 01-10-2003, 11:13 PM
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Join Date: Oct 2002
Location: Colorado Springs
Posts: 481
2 pints should be enough, take the brake reservoir off replace the rubber seals and clean out the reservoir. Then fill up the reservoir and bleed out each wheel till it nice and clear and no bubbles. I use Castrol brake fluid.
Martin Ingram
Colorado Springs
2005 320 CDI
2006.5 VW Jetta TDI
1991 560SEL (179000 Sold)
1972 280SEL 4.5 ('The Lead Sled' 320000 miles when sold.)
1972 220D (225000 when sold)
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Old 01-10-2003, 11:20 PM
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Join Date: Apr 1999
Posts: 2,633
I alternate every year between ATE Type 200 (amber) and ATE SuperBlue (blue).

Both have the same specs. and the color let's me know when last year's fluid has been completely flushed.

:-) neil
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Old 01-11-2003, 01:43 AM
Kyle Blackmore's Avatar
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Join Date: Sep 2001
Location: almost beyond Hope...B.C.
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Hi Lizem,The 124 manual states to drain the master cylinder down to about 10mm then refill.If you use a Mity-vac to bleed it draw 80 cc from each wheel or 10 pedal strokes if you do it the old way.Like Mihngram said 2 pints or 1 liter should be plenty,don't use old brake fluid, buy fresh fluid.Brake fluid is hygroscopic and an unsealed container in a damp shop will absorb moisture in a few months time.Good luck.
1985 380SE- 160,000km 'Blistu' - Sold
1988 300CE- Eva,my garage mistress
2007 R350 4matic- The Black Pearl
2011 Ford Ranger-Work truck
1974 25' Trojan Sea Raider- 'Grannyknot'
2002 215 cm Atomic DH skis- Canadian SDH record holder, 175.5km/h- Vars 2010
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Old 01-11-2003, 03:48 AM
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Join Date: Apr 1999
Posts: 2,633
Use a Speedibleed ($99) and you'll never go back to vaccuum-pumps or pedal-pumping again. So much faster, easier, and better for ABS, and ASR cars.

Also, if you pedal-pump, DO NOT depress the brake-pedal all the way to the floor. You will be forcing the master-cylinder pistons into areas it hasn't been to before and will most likely cause a nick or tear in the seal, then it's new master-cylinder time.

:-) neil

Last edited by ke6dcj; 01-11-2003 at 11:05 AM.
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Old 01-11-2003, 07:04 AM
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Join Date: Jun 2000
Location: Near Williamsburg, Virginia
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Great idea using ATE amber and blue! I'll make the switch. I have an SL and a sport sedan that I change the fluid at least every six months. I live in Virginia between the James and York Rivers and humidity is such that leather turns green in the summer. My other cars are on one to two year changes.

I also use a speedibleed as you recommend.


(5t5RA, 9Q5RW)
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Old 01-12-2003, 11:34 PM
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Location: fort worth
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thanks for the info

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