Just replaced water pump on 2004 325i, and it overheated on the test drive...thermostat?

Asked by Jul 25, 2015 at 11:45 PM about the 2004 BMW 3 Series 325Ci Convertible RWD

Question type: Maintenance & Repair

Our little car has 170,000 miles on it and we just love her, but last Monday I was on
my way to work and the water pump went out, causing the serpentine belt to shift, the
fan to start hitting something loudly, it overheated, and after towing her home and
replacing the water pump, I thought we were good.  I went to test drive her and only
made it two freeway exits before she overheated... took over two hours to get her
home. Can it be the thermostat?

1 Answer

29,075

check the thermostat !! and bleed all the air out of the cooling system..over heating while driving down the road rules out the fan.. also check return hose ..well both to make sure when its hot that they are not sucking closed.

1 of 1 people found this helpful.

Your Answer

BMW 3 Series Experts

  • #1
    Tom Demyan
    Reputation
    5,410
  • #2
    Robert Charlson
    Reputation
    1,740
  • #3
    Matt Mankinen
    Reputation
    1,290
View All

Related Models For Sale

Used BMW 5 Series
487 Great Deals out of 16,407 listings starting at $995
Used BMW M3
29 Great Deals out of 1,841 listings starting at $5,495
Used Mercedes-Benz C-Class
759 Great Deals out of 26,145 listings starting at $1,995
Used Audi A4
252 Great Deals out of 12,336 listings starting at $1,200
Used Ford Mustang
348 Great Deals out of 41,846 listings starting at $1,488
Used Honda Accord
801 Great Deals out of 89,314 listings starting at $1,444
Used Mercedes-Benz E-Class
537 Great Deals out of 21,740 listings starting at $1,999
Used BMW 7 Series
118 Great Deals out of 5,226 listings starting at $2,995
Used BMW 6 Series
65 Great Deals out of 2,415 listings starting at $5,995
Used BMW X5
401 Great Deals out of 16,626 listings starting at $2,800
Used BMW M5
8 Great Deals out of 528 listings starting at $8,500
Used BMW 1 Series
39 Great Deals out of 1,038 listings starting at $4,980

Used Cars For Sale

2018 BMW 3 Series For Sale
29 Great Deals out of 7,643 listings starting at $30,445
2017 BMW 3 Series For Sale
141 Great Deals out of 3,208 listings starting at $23,925
2016 BMW 3 Series For Sale
44 Great Deals out of 1,090 listings starting at $14,688
2015 BMW 3 Series For Sale
184 Great Deals out of 3,493 listings starting at $13,995
2014 BMW 3 Series For Sale
241 Great Deals out of 3,796 listings starting at $11,979

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.