04-545i; 6 M/T; No heat when cold?
#11
New Members
I believe that the 545's are mechanical water pumps - mine certainly is. 2005 545 MT6.
#13
Members
Senior Members
My 05 530i M54, 1/05 production, the water pump is mechanical... Are you referring to the auxiliary water pump, by the heater valve, for rest heat and supplemental flow at idle, for the heater core?
#14
Super Moderator
Join Date: Jul 2011
Location: Augusta, GA
Posts: 3,600
Likes: 0
Received 312 Likes
on
299 Posts
My Ride: 05 530i M54
Model Year: 05 530i
Engine: 3.0 M54
Correction on my end. The pump itself is ran by a pulley but the water system has an electric self bleeding procedure.
Last edited by seanjordan20; 03-08-2017 at 05:20 AM.
#15
Members
Senior Members
The same procedure holds true for the 04-05 N62 in the 545i.
#16
New Members
Thread Starter
Join Date: Oct 2012
Location: boyzee
Posts: 82
Likes: 0
Received 1 Like
on
1 Post
My Ride: 2004 545 6 M/T
Model Year: 2004
So I finally had some time to replace the heater valve in my car and... I now have heat! I think anyway. It was a warm day (in the high 50's) so I can't tell if it is really fixed or if it is doing what it did before... I would get heat in warmer temps but no heat in colder temps (like 20's-40's). I'm gonna assume it is fixed but will let y'all know what it does in colder temps (here in Idaho... you know we ain't done with it yet!).
Also; my 545 (as do most) has has two water pumps... the main one which is mechanical, and the auxiliary, which is electric. I do not think my aux pump is bad though... I pulled codes on my car but did not find bad aux pump code; 9C77.
Also; my 545 (as do most) has has two water pumps... the main one which is mechanical, and the auxiliary, which is electric. I do not think my aux pump is bad though... I pulled codes on my car but did not find bad aux pump code; 9C77.
#17
New Members
Join Date: Mar 2013
Location: Lebanon
Posts: 236
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 2007 BMW 550i
So I finally had some time to replace the heater valve in my car and... I now have heat! I think anyway. It was a warm day (in the high 50's) so I can't tell if it is really fixed or if it is doing what it did before... I would get heat in warmer temps but no heat in colder temps (like 20's-40's). I'm gonna assume it is fixed but will let y'all know what it does in colder temps (here in Idaho... you know we ain't done with it yet!).
Also; my 545 (as do most) has has two water pumps... the main one which is mechanical, and the auxiliary, which is electric. I do not think my aux pump is bad though... I pulled codes on my car but did not find bad aux pump code; 9C77.
Also; my 545 (as do most) has has two water pumps... the main one which is mechanical, and the auxiliary, which is electric. I do not think my aux pump is bad though... I pulled codes on my car but did not find bad aux pump code; 9C77.
#19
New Members
Thread Starter
Join Date: Oct 2012
Location: boyzee
Posts: 82
Likes: 0
Received 1 Like
on
1 Post
My Ride: 2004 545 6 M/T
Model Year: 2004
Update... not sure if I did this correctly but I I tested the electric aux water pump by removing the power connector to it and connecting 12 volts to the pump via a portable jump starter/battery pack. Nothing... no spark, no sound, no nothing. Does this mean my aux pump is dead? If so, any recommendations on where to buy one?
#20
New Members
Join Date: Mar 2013
Location: Lebanon
Posts: 236
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 2007 BMW 550i
Update... not sure if I did this correctly but I I tested the electric aux water pump by removing the power connector to it and connecting 12 volts to the pump via a portable jump starter/battery pack. Nothing... no spark, no sound, no nothing. Does this mean my aux pump is dead? If so, any recommendations on where to buy one?