Etwenty1 45 Report post Posted September 5, 2014 Just bought a real straight '87 735i - brakes needed bleeding after PO had put in storage. Brakes now good but during bleeding fluid was being expelled from the PS cap. All cleaned up but still seems to be sweating PS fluid from the cap. Is this normal. I have begun researching e32's but hoped someone would be familiar. Quote Share this post Link to post Share on other sites
Eagle 1662 Report post Posted September 6, 2014 Assuming it has the old hydraulic system? Maybe someone has used ATF instead of Pentosin Quote Share this post Link to post Share on other sites
B.M.W Ltd 950 Report post Posted September 6, 2014 The level should only be to the bottom of the gauze filter inside the resevoir after pumping the brake pedal 20 times Quote Share this post Link to post Share on other sites
_ethrty-Andy_ 2132 Report post Posted September 6, 2014 yeah pretty common Pentosin hasnt been used, i dont know if your regular garages even carry it???? its pretty expencive stuff, i think Penrite was about $60 or so for a liter bottle Quote Share this post Link to post Share on other sites
Eagle 1662 Report post Posted September 7, 2014 $32 per L from local dealer here when i bought it 3-4 yrs ago. Quote Share this post Link to post Share on other sites
Etwenty1 45 Report post Posted September 8, 2014 Thanks guys Quote Share this post Link to post Share on other sites
sonic_attack 89 Report post Posted September 8, 2014 Bought a litre of Penrite a month ago, was around $30. Quote Share this post Link to post Share on other sites
Auzeras 28 Report post Posted September 11, 2014 Pentosin is only used with cars that have the LAD, for the 735 the LAD was an option and wasn't included by default. It should say on the cap it it's ATF or Pentosin. I'd be willing to bet yours is just ordinary ATF. Still doesn't answer why it's pushing fluid out of the cap. Perhaps the seal has rotted away? Quote Share this post Link to post Share on other sites
