Question about 2003 BMW 325

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A/C evaporator core bad?

I own a 2003 BMW 325i. A/C started blowing hot air in June. Local shop charged system and checked for leaks. Air was cold for 3 months then went hot again. Local shop charged system and checked for leaks again. Air was cold for one day. Local shop now telling me evaporator core is bad and must be replaced. How do I know that will fix the problem?

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Posted on Jan 02, 2017

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sdjdalton413
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SOURCE: How do you change the time on a 2003 BMW.

from ignition key position 1 , the right hand side trip button on your speedo shut be twisted right to advance the time,the longer you hold it ,the faster it will go,when desired time is reached, press the button inwards to set, switch off ignition and press the button,the time should display for few seconds.

Posted on Nov 14, 2008

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  • 126 Answers

SOURCE: 2003 BMW 325I Power Steering

when looking at the engine with the hood up, look to the right hand side for something that looks like this (#1 in the pic): http://www.realoem.com/bmw/showparts.do?model=ET37&mospid=47720&btnr=32_0957&hg=32&fg=20

it will be black in color, but don't confuse it with the oil filter housing. power steering reservoir will have a unique cap (#2 in the pic) that can be removed with your hand. the one that has the large nut on top is the oil filter. remove the cap and put in the correct fluid.

hope this helped.

Posted on Jan 27, 2009

  • 219 Answers

SOURCE: 2003 bmw 325i a/c front vent

hi gc, if you are getting cold air and warm air out of different vents with the a/c on, I would recommend having the a/c freon checked. if the system is low, it can cause cold air out one side and warm air out the other. if it is low, the system should also be checked for the source of the leak.freon has oil in it that keeps the compressor internally lubricated and when freon leaks out, moisture can get in the system.

Posted on Apr 09, 2009

  • 30 Answers

SOURCE: air condition not blowing cold air

Is any air coming out at all?

If warm air is being blown out, then your refrigerant level is probably low. The car is fitted with a safety cut off, to stop the air conditioning system working if the refrigerant (R134a) level is low.

This cut off only effects the air conditioning, the blower would still function normally.

Posted on Apr 21, 2009

  • 12 Answers

SOURCE: how to replace rear shocks on 2003 bmw 325i

You have to take the trunk liners off of both sides. There will be 3 13mm nuts on each side for the shocks, and under the car is a 16 or 17mm bolt that has to be removed. I hope this helps.

Posted on Apr 29, 2009

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Based on what you have said and my 30 years a Ford dealer tech I believe you have a slightly low AC system refrigerant charge due to a small leak at the AC compressor or the AC line connections. I would have a shop hook up a set of gauges to monitor the pressures at idle and see just how low it is. DO NOT ADD UNTIL YOU KNOW HOW MUCH IS NEEDED, YOU CAN LOCK UP THE COMPRESSOR.

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My 2003 325i blows cold air, heater never heats up, what's the potential causes/cures?


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The front air isn't blowing out as hard and the back a/c blowing out but blows out hot air! what's is the number one reason for this problem?


The number one reason for hot air out the back could be low freon or bad blend door to the rear, and not blowing hard out the front could be a block in the evaporator core. the core is like a small radiator that freon flows through and air is blown through it to make cold air sometimes if they leak it blocks the fins which slows down the air flow.

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My A/C in my BMW 2004 325I is not blowing cool air. What can I buy so it can start blowing cool air?


Have the system serviced a shop because you could have a leak in the system. If it just stopped all of a sudden then you probably have an electrical problem. Check all the fuses and relays, also check the pressure switches on the lines and make sure they are working properly. This particular car uses R134 freon. You can buy it at the local parts store and even walmart sells it.

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Jun 24, 2009 | 2001 BMW 325

1 Answer

Why am I losing coolant and have no heat or air?


I would start by checking for coolant leaks. Common places would be in the waterpump or heater core. Heater cores can crack and leak. The heat from your vents inside the vehicle comes from air passing over the heater core, which is heated by the hot coolant flowing through the heater core. It acts in a similar fashion to your radiator, with the purpose of heat transfer. A coolant system that is low on coolant will not transfer heat through the heater core. Also, deposits from the coolant system can collect and plug the heater core which will restrict the flow and the amount of heat that is transfered to your heater. If you don't see coolant leaking externally, it may be leaking into the engine. this may be from a blown head gasket or warped head. If this is the case you may notice some whitish color smoke coming from the exhaust, as well as your coolant overflow/storage tank fluid level may increase.
The air conditioning is a seperate system and may be a seperate issue. The system contains liquid freon like a refrigerator. You can by recharge kits at your local autoparts store. If the kit works, you may find there is a leak in the system and you will loose cold air after some time. If thats the case, a certified dealer can fill the system with colored dye to help locate the leak. A bad compressor or evaporater can also cause a/c systems to fail.

Jun 10, 2009 | 2003 Ford Explorer

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The blower in my 325i has interuptions in the air flow?


You need a final stage resistor located under dash on passenger side - toward transmission tunnel/ center console. This controls fan speed and is very comon.

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1 Answer

2001 bmw 325i only blows cold on driver side and hot on passager


hey ic, sounds like your refrigerant is low. if you have a low charge it will usually get you slight cool air on the driver's side. have the system checked and make sure you have a full charge. also, be careful about running it low on charge, the refrigerant has oil in it that keeps the compressor lubricated.

Apr 08, 2009 | 2001 BMW 325

1 Answer

2003 bmw 325i a/c front vent


hi gc, if you are getting cold air and warm air out of different vents with the a/c on, I would recommend having the a/c freon checked. if the system is low, it can cause cold air out one side and warm air out the other. if it is low, the system should also be checked for the source of the leak.freon has oil in it that keeps the compressor internally lubricated and when freon leaks out, moisture can get in the system.

Apr 03, 2009 | 2003 BMW 325

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