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Old 03-08-2003, 04:55 AM
Likes DIY/Tech'y inclined
Join Date: Sep 2002
Location: San Francisco Bay Area
Posts: 450
w124 brake flushing questions

Hi all,

I plan to flush by brake system on '87 260E and bought MB DOT-4 fluid (0.75 quarts / 25.4 oz)

Is this enough for the job?

Aside from the Power Bleeder, what type wrench do I need for the nipple and what size hose is needed. Is the hose necessary?


'87 W124 260E (DD)
98K orig. mi. @7/15
CLK 7-Spoke Forged Wheels
Neuspeed springs/Bilstein Sport
4/3 bump (F/R)

'97 993 Carrera
106K orig. mi.
Always driven like it's stolen
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Old 03-08-2003, 07:37 AM
Jason M.
Posts: n/a
Power bleeder isnt really necessary...

Don't let the 15 page posts surrounding brake bleeding make it seem harder than it is. Get a friend and tell him to listen, and you can do it by hand. It'll take all of 10 minutes if you haven't ever done it before .

I think the bleeder screws were 10mm... but I don't remember.. maybe 8mm

Just buy the tall container at the autoparts store of DOT4.. save the rest and cap it tightly

Jason McNeese
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Old 03-08-2003, 07:39 AM
Jason M.
Posts: n/a
BTW Hose is only so you don't make a mess

a piece of stretchy vacuum line works(I dunno, 5/16 maybe?), or a clear line from an aquarium air pump
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Old 03-08-2003, 12:57 PM
MikeTangas's Avatar
Senior Member
Join Date: Apr 2000
Location: So. Cal
Posts: 4,430
All the bleeder screws I've seen on the Benz's are 9mm. I prefer to use a box wrench as it allow free flow of the fluid. Only use a socket to break the bleeder loose.

Can be done without the hose/tubing. The tubing allows for capture of the expelled fluid and no mess on the ground.
Mike Tangas
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72

'02 CLK320 Cabriolet - wifey's mid-life crisis

2012 VW Jetta Sportwagon least its a diesel

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