I'm Not a tech but i would suggest replacing your thremostat and at least the short hose between the head and your pump. if you have the old plastic thermostat housing i would also suggest replacing that for the aftermarket aluminum one. i remember my neck beaking on mine right after i changed my pump. NOT FUN
this means tow truck time! in answer to your other question, I purchased a aftermarket Japanese pump (possibly reman.) 2 years/50,000 miles ago and it works fine so far.
Good Luck, and God Bless America!
01 ML55 AMG
92 500E (a few mods)
87 300E (lots of mods)
00 Chevy 3500HD Diesel Box Truck
68 18' Donzi Marine
06 GT i-Drive7 1.0 Mountain Bike (with GPS!
PREVIOUSLY OWNED:83 300SD, 87 420SEL, 88 420SEL, 90 420SEL, 86 560SEL, 86 190E 2.3-16V AMG, 94 E320