M5 Expert (>4000)
Join Date: Aug 2002
Location: Raleigh, NC
Thanked 1,507 Times in 1,031 Posts
Do our water pumps fail often or it's not an issue?
The reason I ask is that my friend's just blew up on his e46 M3 and he is worried about engine damage from the possible overheat.
In all the years I've had the E39 M5 (and been on the board here), I can't really recall any water pump failure issues ever being discussed...of any significance anyway. Apparently, the M5 pump design is much more robust than the 540i/E46/E36, etc, where you need to proactively replace by ~60k. That being said, the E39 M5 is now old enough that some people are really getting up there in miles. I wonder if tranck has ever done his water pump?
2019 M2 Competition 6MT LBB, slicktop
2011.5 M3 sedan 6MT Silverstone, slicktop: Dinan front swaybar, Eibach rear swaybar, pins-out-max-camber-up-front, Dinan exhaust, Michelin PS4S, Apex EC-7 9.5/10.5x19
2007 328i wagon Silver/gray: Eibach 28mm front swaybar, E93 M3 rear swaybar, 219M M3 wheels, Michelin PSAS3+
1975 CanAm 125MX2: Stock, original owner
Last edited by CSBM5; 14th October 2009 at 02:49 PM.