Question about 1997 BMW 328
The hardest leak to see is the weep hole on the bottom of the water pump. You won't know for sure that it is leaking out the weep hole until the fan is off, the serpentine belt is off, and the pulley is off so you can see the bottom of the water pump.
The water pump is in the front of the engine block, directly behind the fan.
A 1997 328 is due for virtually every component in the cooling system unless you know for a fact that the component has been recently replaced. For example, you must be on at least your second radiator, so if the current radiator is less than 5 years old, it probably has a few more years in it. However, on a '97, you should be on your second overflow reservoir, your second set of hoses (and that means ALL the hoses, including the tough to reach ones behind the engine and under the intake manifold), your second thermostat and housing, your second water pump, and your second radiator.
Not part of the cooling system, but if you have not replaced the rubber boot on the throttle body, you might as well order one of those while you are at it because I promise you it is cracked.
I own two '97 328s, one with 175k miles and one with 275k miles, and they both have had everything in the cooling system replaced at least once.
If you want to do this yourself, you will have to buy or make a tool to hold the pulley still while you loosen the fan. The fan nut is left-handed thread. Oh yes, if it has not been replaced, you are probably due for a fan clutch as well.
If you have an automatic transmission, I find it easier to leave the transmission cooler in the car when I pull the radiator, but be careful not to inadvertently pull the transmission lines out of it or you will dump transmission fluid all over the floor. Refilling this transmission and getting the level correct is a hassle.
Posted on May 18, 2011
a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Aug 12, 2014 | 2007 Jeep Wrangler Unlimited Rubicon 2...
Feb 27, 2012 | 1998 Cadillac DeVille
Jan 18, 2011 | 2001 Land Rover Discovery Series II
Jul 18, 2010 | 1998 BMW 7 Series
Jun 03, 2010 | 1996 Pontiac Sunfire
May 02, 2010 | 1999 Dodge Durango
Mar 10, 2010 | 1995 BMW M3
Nov 30, 2009 | 1996 Ford Aerostar Extended
Jun 17, 2009 | 1988 Toyota Camry
105 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: