Air pressour b m w 3 drive on flats - 2007 BMW 3 Series 328i

1. Low air presure from turbo to fuel pump or
2. Waste gate at turbo does not open or
3. Dirty air filter.

The light doesn't go out after you top up the air pressure in the tyres.There is a reset button, that you should press, and that will reset the tyre pressure
Usually it is in between the front seats, about where the handbreak is.
Find the button, press it and hold it down for a couple of seconds, and that will make the warning light go off.

Hi

Sopunds like either 1 of 3 things

Air mas sensor
EGR valve "exhaust gas recycler" valve
throttle control module.

Most likely the one of the first 2, check for air leaks as well. air mass is cheapest part, EGR and air mass can often be cleaned and work fine again. do you get an engine light at all?
if so then I would say have the EGR checked.

Regards
Dan

To Replace Brake Pads...
Parts:
1. Brake Pad Set

Tools:
1. C-Clamp
2. Flat Head Screwdriver
3. Jack Stand Set
4. 3/8 in. Drive Ratchet
5. Combination Wrench Set
6. Tire Iron
7. Socket Set
8. 1/4 in. Drive Torque Wrench
9. Dial Indicator


To Replace Brake Shoes...
Parts:
1. Brake Shoe Set

Tools:
1. Combination Wrench Set
2. Floor Jack
3. Jack Stand Set
4. Mallet Hammer
5. Brake Spring Tool
6. Flat Head Screwdriver
7. Needle Nose Pliers
8. Tire Iron
9. Brake Resetting Gauge

Supplies:
1. Brake Cleaner


Hope this helped (remember comment and rated this).

There are 3 possbile diagrams, depending on whether it's equipped with AC and engine type. The 3 are listed below. Thank you for using Fixya and please remember to return to rate this answer.
Greg

98 Escort Drive Belt Air #1



98 Escort Drive Belt Air #2


98 Escort Drive Belt no Air

there are 3 horizontal buttons below your air control buttons, the one on the right which will have arrows going to left and right, that's the button to turn on and off the running boards, sometimes that buttons sticks so you might need a flat head screw driver to pull the button out

You need to make sure you get any air pockets out of the engines coolant system before you drive anywhere. If you dont see the air bleeder try this. Fill the radiator and put the recovery bottle about half full. Put the cap on the radiator and let the car run for 5 minutes then turn it off and let it cool off. Carefully remove rad. cap and see if it needs more coolant.If it does not put cap back on and let it run for 10 minutes.Turn it off and let it cool then check it again.
Dont be in a hurry! To many people will drive with an air pocket and over heat the engine! Most of the newer cars do trap air if you let some of the coolant out.
Wear safety glasses when removeing radiator cap slowly,to be safe.
I hope this helps you.

The fan/clutch assy has left hand thread. Loosen by turning clockwise.

Remove radiator top shroud & air cleaner assy. to gain access.
Remove engine cooling fan by holding the belt drive pulley with a suitable flat bar tool (that fits over the top of the drive pulley attachment bolts), then using a suitable flat spanner to unscrew the fan clutch assy (clockwise). When re-fitting, tighten clutch nut to 30 ftlb.
You may need to use a bit of ingenuity in making the flat bar holding tool, unless you are able to procure the BMW tool #11.5.030.
Good luck

Heating & Air Conditioning Go to MSN auto and it will tell you the most common problem with any vehicle.
An occasional problem on this vehicle is the failure of the Blend Air Door. Failure of the Blend Air Door is identified in Jeep TSB #24-001-04. The cost to repair the Blend Air Door is estimated at $130 for parts and $338 for labor. All prices are estimates based on $65 per flat rate hour and do not include diagnostic time or any applicable sales tax.

Its overheating when you go up long hills because the engine is not getting adaquete air in the system. The radiator is angled to get optimal air a certain way. It may overheat but you shouldn't start seeing smoke.