I did the brake flush both ways on '00 MB E430 using Motive Brake Bleeder and Mityvac fluid extractor MV7201.
Last week I did the brake flush with Motive Brake Bleeder Kit 0251, installing the bleeder is easy for European cars. Following the instructions to the T, the rear brake fluid came out slowly not much faster than gravity bleeding. The front brake fluid came out much faster. Probably the rate of flow is so much different because rear brake lines are much longer than the front, therefore the pressure on the rear bleeder screws are much less than the front.
Today I decided to try re-flush the rear brake lines with Mityvac fluid extractor MV7201 (I don't use the Mityvac MVA7205 Brake Bleed Conversion Kit). Installation of the lines was very easy, took me less than 15 seconds. I then pumped the Mityvac 3-4 times to create a small vacuum, then I unscrewed the bleeder valve. As soon as I turned the bleeder valve by 1/8 turns brake fluid came out fairly fast, I turned the bleeder valve by 1/2 turns and pumped the Mityvac 6-7 times more. The brake fluid came out very fast at about 5-6 oz per minute. The passenger rear was done in less than 4 minutes and driver rear in less than 3 minutes. I had to keep top off the master cylinder every minute or so to be sure it did not run dry.
Comparing the two 1-person methods, clearly it is much easier to flush the brake system with a fluid extractor, specially with Asian and American cars and specially for the long rear brake lines. If you already have a fluid extractor to do oil/transmission fluid changes, just use it to flush the brake, no need to buy Motive Power Bleeder.
Last week I did the brake flush with Motive Brake Bleeder Kit 0251, installing the bleeder is easy for European cars. Following the instructions to the T, the rear brake fluid came out slowly not much faster than gravity bleeding. The front brake fluid came out much faster. Probably the rate of flow is so much different because rear brake lines are much longer than the front, therefore the pressure on the rear bleeder screws are much less than the front.
Today I decided to try re-flush the rear brake lines with Mityvac fluid extractor MV7201 (I don't use the Mityvac MVA7205 Brake Bleed Conversion Kit). Installation of the lines was very easy, took me less than 15 seconds. I then pumped the Mityvac 3-4 times to create a small vacuum, then I unscrewed the bleeder valve. As soon as I turned the bleeder valve by 1/8 turns brake fluid came out fairly fast, I turned the bleeder valve by 1/2 turns and pumped the Mityvac 6-7 times more. The brake fluid came out very fast at about 5-6 oz per minute. The passenger rear was done in less than 4 minutes and driver rear in less than 3 minutes. I had to keep top off the master cylinder every minute or so to be sure it did not run dry.
Comparing the two 1-person methods, clearly it is much easier to flush the brake system with a fluid extractor, specially with Asian and American cars and specially for the long rear brake lines. If you already have a fluid extractor to do oil/transmission fluid changes, just use it to flush the brake, no need to buy Motive Power Bleeder.