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Brake bleed sequence

IMO, a complete system bleeding without a lift requires the car to be on 4 jackstands with all 4 wheels removed.

I think you have over-simplified the Haynes sequence (more below). The 700/900 FAQ does not apply to 200 series brakes.

The MC must be filled and kept full throughout the bleeding process. If either reservoir is let go empty, you have to start over on that circuit (explained below).

Before you start bleeding, go around and make sure you can open each bleeder. A frozen or broken bleeder half-way thru the job takes a lot of the fun out of it. While doing this bleeder check, you can also expel much of the old fluid in the caliper by pushing the pads back with bleeder open and piped to your drain container.

Because the 200's have two separate hydraulic systems, the recommended sequence (below) bleeds each system separately.

On the front calipers, the upper two cylinders form an inverted "U", with a single bleeder at the highest point. The lower two cylinders form an upright "U", with bleeders at the two high points. The upper and lower cylinders are each in a separate hydraulic system.
(See illustrations in Bentley, p 500-1 and Haynes, p 9-13)

Either system can be done first:

System A:
1) Left rear
2) Left front - Upper piston chambers (single bleeder, top)
3) Right front - Upper piston chambers (single bleeder, top)

System B:
4) Right rear
5) Right front - Lower piston chambers (inner and outer bleeders, either first)
6) Left front - Lower piston chambers (inner and outer bleeders, either first)


--
Bruce Young
'93 940-NA (current), 240s (one V8), 140s, 122s, since '63.






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