Per the instructions, the A.B.S. brake bleeding must be done at 2 bar to open the valves. However, the two electrical connections are not allowing any pressure to build up. Must I replace the brake reservoir?

B.T.W., this is for a 1985 280TE.

Thank you in advance for any help!

__________________
Current fleet:

1985 Mercedes-Benz 280TE - Waiting for heart surgery.

1985 Mercedes-Benz 300TDT - Rear ended 23 September 2016 and now looking for a new home.

1979 Mercedes-Benz 300TD - Parted out.

1964 Volkswgen Beetle - Vater's since September 1968 and undergoing a restoration.

1971 Volkswagen Sunroof Squareback with F.I. - in need of full restoration.

1971 Volkswagen Squareback automatic with F.I. - Vacationing with her caretaker until he is in better health.

Hello - check out the below tech article from our website. It should give you the necessary steps to bleed your brakes. Best of luck!

Mercedes-Benz W123 Bleeding Brakes | W123 (1977-1985) | Pelican Parts DIY Maintenance Article


-Dmitry

Dmitry, thank you so very much!

I did the pedal bleeding the other day, so glad to know it was the right way.

B.T.W., to keep the pedal down since can't get help, use a aircooled Volkswagen flywheel. Done several this way.

__________________
Current fleet:

1985 Mercedes-Benz 280TE - Waiting for heart surgery.

1985 Mercedes-Benz 300TDT - Rear ended 23 September 2016 and now looking for a new home.

1979 Mercedes-Benz 300TD - Parted out.

1964 Volkswgen Beetle - Vater's since September 1968 and undergoing a restoration.

1971 Volkswagen Sunroof Squareback with F.I. - in need of full restoration.

1971 Volkswagen Squareback automatic with F.I. - Vacationing with her caretaker until he is in better health.

No problem - please let me know if there is anything else that I can help you with.


-Dmitry

Dmitry, ever had it where finishing with the front made the pedal squishy but finishing with the rear made it firm?

Feels just where the other was, good and solid. Driving around local feels maybe a tad soft, but pumping makes no improvement. Figure after do put some miles on, then do another round.

Also, would add with the A.B.S., critical to let sit for a day. Seems the unit holds air, as next day got a lot of air out of the first caliper. More so than letting it sit for a half hour.

Further, saw way more bubbles in the fluid than ever had with the many non-ABS that have done.

__________________
Current fleet:

1985 Mercedes-Benz 280TE - Waiting for heart surgery.

1985 Mercedes-Benz 300TDT - Rear ended 23 September 2016 and now looking for a new home.

1979 Mercedes-Benz 300TD - Parted out.

1964 Volkswgen Beetle - Vater's since September 1968 and undergoing a restoration.

1971 Volkswagen Sunroof Squareback with F.I. - in need of full restoration.

1971 Volkswagen Squareback automatic with F.I. - Vacationing with her caretaker until he is in better health.