Eric's '90 80 quattro significant repair & maintenance list =========================================================== 6/2019 Note: work outlined in "80 complete mod list.txt" is not included here General mainenance: Oil changed every year (= about every 3500 miles) w/Mobil 1 0W-40 Coolant changed every 2 years with OE & distilled water Brake fluid changed every 2 years with ATE super blue or type 200 Specific maintenance/repairs: June/July 2019: Engine was consuming coolant with no visible leakage, white smoke in exhaust. Head resurfaced, valves lapped, valve seals replaced, carbon & deposits cleaned from valves, head, & pistons. Still consumed coolant after the above, installed Bars Leaks, no longer consuming coolant. Replaced serpentine belt tensioner. Replaced all exh. manifold & related fasteners w/stainless. June 2019: Radiator replaced with brand-new Valeo January 2019: Brakes redone: new pads & rotors all 4 wheels, new rear calipers, new e-brake cables December 2017: Battery replaced (w/Optima red top) November 2017: Valve cover gasket replaced (still leaks a little) August 2017: Crank trigger sensors replaced with commercially-available ones R. license plate light bulbs replaced w/LED July 2017: Fuel pump replaced w/new Bosch (also filter, refinished bracket, mounts, and redid wiring) Original radiator reinstalled, replacing crummy Nissens one installed in 2012 that rusted November 2016: Windshield replaced - old one had cracked due to rust where attached to body. Rust removed, primed with "rust neutralizer" primer, then special primer for windshield adhesive on instruction from windshield specialist. Front strut bump stops replaced (with more durable ones) August 2016: Steering rack replaced w/rebuilt from Jorgen (supposed to be the best) August 2015: P/S pressure hose from pump to rack replaced October 2014: Timing belt & water pump replaced January 2014: Heater fan replaced December 2013: Heater core replaced, deteriorated foam in HVAC system replaced August 2012: Transmission & diff fluid changed when installed with Red Line synthetic