20 Most Recent 2003 BMW 5 Series - Page 8 Questions & Answers

lose the factory alarm, they're totally useless. all it will do is leave you stranded. No one pays attention to a car alarm going off. Particularly BMW's the average person thinks they SHOULD be stolen and put the owner out of their misery of giving thousands to the service dept.

Disable hood switch by unplugging it. common failure point.

Replacing fan cowl :--
Remove fan impeller with fan clutch from water pump. Remove coolant expansion tank from fan cowl. Note: Coolant lines remain connected. Remove auxiliary water pump from fan cowl. Note: Coolant lines remain connected.
Unclip AUC sensor.
Lever out expansion rivets (1) on left and right. Detach sealing strip (2). Installation: Pay attention to installation position of sealing strip. Lift out fan cowl and fan impeller together.
Installation: Attach fan cowl in retaining lugs at bottom and sides.
Removing and installing radiator (M54):----
Warning! Danger of scalding! Only perform this work after engine has cooled down.
Drain coolant. Remove fan cow.
Lever out spring (1). Remove water hose (2). Release screws (3) on left and right of radiator. Remove both brackets (4). Installation: Follow instructions for working on cooling system.
Disconnect plug (1). Lever out spring (2). Remove water hose (3). Installation: Slide spring (2) back. Water hose (3) must snap audibly into place.
Lift out radiator.
Installation: Pay attention to rubber mounts on left and right.
Installation: Install radiator with rubber mounts on left and right in bracket.
Top up coolant. Vent cooling system and check for leaks.
If  cowling out the fan is in the way then :-- Here are the instructions for fan removal.
I have found putting a 32mm wrench on it and hitting it with a mallet works good to break it free, also a impact hammer with a long bit works well as well instead of the special tools.
Removing and installing/replacing fan clutch (S52 / S54 / M52 / M52TU / M54 / M56)
Special tools required:
11 5 030
11 5 040
Important! Left-hand threads. Using special tool 11 5 030, grip pulley and unfasten cap nut from water pump using special tool 11 5 040. If necessary, unfasten fan cowl. Take the fan wheel with fan coupling off the water pump and remove.
Installation: Tighten down fan impeller using special tool 11 5 040. Tightening torque 11 52 1AZ. Note: When using special tool 11 5 040, 30 Nm on the torque wrench scale are equivalent.


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The procedure to remove thermostat is as follows:---
You will require proper tools to remove parts to reach the thermostat.
1)You will need a 32mm wrench a 10mm 11mm 13mm socket and a flat head screw driver.
2) Now with the help of 32mm wrench take fan blade off by turning clock wise.
3) Once fan is out off the way  then you can use the screw driver to remove the clips on the upper & lower radiator hoes.
4) The thermostat is held on with 3 10mm bolts take them off and 1 13mm bolt. When you remove the 13mm bolt you will also need to loosing the 11mm nut that holds the engine pull bracket.
This will help.

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you might need an unlock code.
good luck!

If you do not run even one level of performance as the needed engine control unit, check fuses! If they are okay, the fan is defective! is a frequent defect no only X5 E53 series

there is a resistor that needs replacing. It's located inside the car, under the dashboard, near the steering column. If you don't replace, it could run your battery down, as the fan/blower will operate when the car is left.

ABS pump went bad.

check your air ducking, recirculation motor and door air loover for letting hot air allows to flow, try to cancell, heater core

YES, THE LOWER PRESSURE AC PORT IS AT THE PASSENGER SIDE OF THE CAR.
IF YOU OPEN THE HOOD YOU WILL SEE IT , BY THE WINDSHELD WIPPER TANK. ALSO THE LINE AS A BLUE DOT ON IT. AND A BLACK PLASTIC CAP.
THERE IS ALSO ONE BY THE RADIATOR BUT THAT IS THE HIGH ONE.
YOU WILL NEED THE LOWER ,PORT TO FILL UP THE AC UNIT.
ALSO STAY IN THE BLUE , NOT WHITE OR RED. READ INSTRUCTIONS ON CAN !!!
I USED THE ARCTIC FREEZE ULTRA SYNTHETIC 134 A REFRIGERANT. PEPBOY ALSO WALMART HAS IT.
I BOUGHT THE 134 CAN TO FILL UP THE AC UNIT , AT FIRST IT DIDNT FIT BUT THEN IT WORKED. I TRUNED ON THE CAR AND THE AIR ON HIGH.
NOW AM GETTING VERY COLD AIR.I ALSO CALLED THE DEALER AND THEY WANT $ 250 , TO DO SOMETHING THAT YOU CAN DO FOR UNDER $ 15 DOLLERS. THE DEALER DID TELL ME THAT THEY ALSO CHECK FOR LEAKS AND THEY ALSO EMPTY THE AC UNIT BEFOR THEY REFILL IT .
I HOPE THIS INFORMATION WILL HELP , WHEN USING THE 134 A CAN ! YES IT DOSE WORK AND IT WILL FIT .

should be the orange extended life but if you ever have any doubts auto zone and advance auto parts stores sell a coolant safe to mix with any color,hope this helps you if so please vote

try this guy, he has all the manuals in pdf file and if he doesn't, just ask for it
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=180490869526&viewitem=&sspagename=STRK%3AMESELX%3AIT

check in luggage compartment under floor trim panel .

Remove seat bottom or fish in the crack for the extra seat belt latch assembly. Normally connected to the one that is already out on that mounting point.

Every car needs a heating engine time specially when its cold, I recomend like about 5 to 10 minutes after you start engine and before you change from P to D. If you try to start the engine first time in the morning, it's cold outside and you immediately go on run you are going to have this trouble every time. Every engine has it's operational standard temperature a 5 to 10 minutes working engine, car stopped, may guaranty this standard temperature and optimal function conditions, and also keeps a longer life of your car.

Good luck

you need a noise filter the radio is getting interferince from the motor

try the aerial connection in the roof behind the interior light its corroded

Information can be found FREE by downloading a FREE SERVICE MANUAL for your vehicle using the link below

http://ezinearticles.com/?Find-the-Free-Auto-Repair-Manual-You-Need-Online&id=92717

hello theringbar, I would recommend checking the a/c blower resistor. it is an electronic final stage and can kill the battery overnight. the final stage is located on the passenger side at the back of the a/c heater box.