At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
Re: Losing coolant but no leaks on my BMW 5 series 528i....
Look in the radiator for the presence of oil or bubbles. See if water is dripping from the tail pipe. All these indicate the engine is burning the coolant. Look for a blown head gasket or a cracked head.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
BMW 5 Series (E39) Service Manual: 1997-2002 2003 ' Bentley Publishers ' English ' ISBN: 083760317X ' Pages 1002 ' File type: PDF ' 44.37mb
This Bentley Manual is the only comprehensive, single source of service information and specifications for BMW 5 Series (E39) cars from 1997-2002. Whether you're a professional technician or a do-it-yourself BMW owner, this manual will help you understand, maintain, and repair every system on 5 Series cars.
BMW 5 Series (E39) Service Manual: 1997, 1998, 1999, 2000, 2001, 2002 525i, 528i, 530i, 540i Sedan, Sport Wagon.
If your talking about what would a dealership change, it generally consists of a tune up, including spark plugs, plug wires, air filter, oil change, pcv valve, and fuel filter. Thats also usually when they want to replace the timing belts. There may be one or two other things specific to BMW, but generally thats what you can expect.
sounds like brake booster not working
check vacuum hose that goes to booster is ok and not leaking
engine off
pump up brake pedal several times
hold brake pedal down
start engine
pedal should sink down approx half to 3/4 way down indicating booster is working
if pedal doesnt go down when engine is running booster has leak or no vacuum supply from engine which requires great pedal effort to try and get vehicle to stop.
The only way a heater core can cause overheating is if it's leaking and the engine is low on antifreeze. To check it for leaks it would help to use a cooling system pressure tester.
Pressure test cooling system to determine origin of leak. Radiator and coolant reservoirs are common problems. Vehicle is very difficult to purge air from cooling system and may take multiple times of idling until thermostat opens. Sometimes help to rev engine to about 2500 rpm 5-8 times to help build heat and move coolant through system. Must have heater on while performing this task.
The 2000 BMW uses a non silica based coolant. OK to use a silica free coolant. Dex-cool is the same. Just make sure it is SILICA free.
Silica based freon supposedly decreases the life span of the coolant system.
×