Article by: MaxF Applies to: early E24, E31 (850), and early E32 (735 and 750) models. While I had the chance, I thought I’d take the old ATE H31 booster apart to see if they are really as “non-rebuildable” as everyone says. . .  I’m also aware of those of […]

Article by: Max F Applies to: early E24, E31 (850), and early E32 (735 and 750) models. The ATE brand hydraulic brake booster on the older E32 vehicles is one of the oddities of the model. The system, known to BMW as the ‘H31’ system, runs the brake boost with […]

Article by: Sean Article applies to: all e32 and e34 models using hydraulic pressure for brake assistance (instead of vacuum assisted brake pressure). Problem : Every now and then a ‘GOING’, warning ‘brake pressure’ (or ‘Bremsdruck’ depending on selected OBC language) and the red brake light comes on. In my […]

Article by: Sean Edited by: Mike Oswald Article applies to: all e32 and e34 models. Problem: A difference in braking using the parking brake or parking brake doesn’t function very well. Background : The parking brake has brake shoes integrated into the rear wheel brake rotors. They are operated by […]

Article by: Johan Article applies to: all e32 / e34 models. Problem: Every time I hit a bump the “Release Parkingbrake” message appeared in the check control display. Fixing it: Remove the rear part of the center console. This is documented in the dashboard removal procedure. Turn the plastic screw […]