BMW M240i AC is not working Inspection at your home or office.

Our certified mobile mechanics come to you 7 days a week between 7 AM and 9 PM.

Estimate price near me

Service Location

Customer Ratings

(31)

How A Diagnostic Works

Instantly book a certified mobile mechanic to come to you

Mechanic diagnoses the problem and quotes necessary repairs

Your vehicle is ready to go

Fair, upfront & transparent pricing for all services

Our certified mobile mechanics can come to you now.

Customer Ratings

(31)

AC is not working Inspection Service

How much does a AC is not working Inspection cost?

On average, the cost for a BMW M240i AC is not working Inspection is $111 with $16 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2019 BMW M240iL6-3.0L TurboService typeAC is not working InspectionEstimate$147.93Shop/Dealer Price$166.17 - $198.37
2017 BMW M240iL6-3.0L TurboService typeAC is not working InspectionEstimate$127.93Shop/Dealer Price$146.18 - $178.40
2018 BMW M240iL6-3.0L TurboService typeAC is not working InspectionEstimate$127.93Shop/Dealer Price$146.18 - $178.40
Show example BMW M240i AC is not working Inspection prices

Although air conditioning may not be a necessity to get from point A to point B, it sure contributes to the quality of the trip. If you find yourself in the less-than-ideal situation of driving a vehicle with non-functioning or under-performing AC, it serves you well to book a mechanic to fix it, so you can comfortably get through the heat.

How this system works:

At its most basic level, a vehicle’s air conditioning system works by intentionally manipulating the temperature and pressure of refrigerant and the direct relationship they have. The process begins with creating high-pressure gas by compressing the refrigerant inside your vehicle’s AC system to raise its pressure and temperature. The refrigerant then flows through the condenser, which turns it into a hot high-pressure liquid before going into the receiver. The receiver – sometimes referred to as a dryer – removes moisture and unwanted particles from the refrigerant. After that, it passes into the expansion valve, or orifice tube, which reduces the refrigerant’s pressure and causes the liquid refrigerant to change its physical state into a cold low-pressure gas.

To perform this change of state from liquid to gas, the refrigerant must have “latent heat,” and it must take that latent heat from the surrounding area inside the evaporator. As the latent heat is pulled from the evaporator core to almost below freezing, the blower motor sends the cold air through your vehicle’s vents. Think of a hot summer day, and you just got out of the pool: The liquid water on your skin starts to evaporate and turn into water vapor. The cooling of your skin is the result of the water pulling the latent heat away from your body to change its state into a vapor.

The air conditioning system is chiefly comprised of the following components:

  • Compressor: This is the core of your AC system. Powered by your vehicle’s serpentine belt, the compressor pressurizes the refrigerant. It is turned on and off by way of the compressor clutch.

  • Compressor clutch: Before the compressor turns on, a special electro-magnetic clutch called the compressor clutch is necessary to engage and disengage the compressor cycle. The compressor clutch tells the compressor when to turn on and off so the refrigerant is correctly pressurized for use by the condenser.

  • Condenser: Located in the front of the radiator, the condenser takes the hot refrigerant and cools it down while also reducing the pressure. This turns the refrigerant into a liquid that can pass to the next stage of the AC system.

  • Receiver/Dryer: Present in vehicles equipped with a thermal expansion valve, the receiver – or dryer – protects the compressor and other parts of the AC system from damage from unwanted particles and liquids. It separates gas from liquid (because the compressor can only handle gas), removes moisture by way of a desiccant, and discards contaminants.

  • Accumulator: Found in vehicles with an orifice tube, the accumulator has roughly the same function as a receiver. In fact, your A/C system will have either a receiver or accumulator – not both. In addition to filtering out debris and moisture, this part controls the amount of refrigerant that flows into the evaporator. The accumulator also stores excess refrigerant so that it cannot enter and damage the compressor. If you have an accumulator, then you don’t have a thermal expansion valve.

  • Thermal expansion valve or orifice tube: The thermal expansion valve and orifice tube have roughly the same function. In fact, your A/C system will have either an orifice tube or expansion valve – not both. Situated between the condenser and evaporator, either the expansion valve or orifice tube is responsible for regulating the amount of refrigerant that enters the evaporator, greatly reducing its pressure and temperature.

  • Evaporator: This component does the actual "cooling" in the vehicle. Set just behind your dash, the evaporator removes humidity from cabin air and cools the air that passes over it. A clutch cycling switch monitors and controls the temperature inside the evaporator’s core to prevent it from freezing, which can greatly damage your AC system as a whole.

  • Blower motor: This part moves the cool air that has passed over the evaporator through your vehicle’s vents. It is controlled by a central control head (or resistor) for fan speed. Also in the distribution system are a series of mode doors that control the direction of flow of cold air.

Note that all of these parts are universal for any vapor-cycle AC system, but the way the refrigerant is metered, controlled, and restricted will vary from manufacturer to manufacturer.

Common reasons for this to happen:

Although a malfunction in any part of your AC system can cause it to underperform or stop working altogether, there are certain issues that are common culprits. Low refrigerant is a common concern. However, since the refrigerant is recycled through the air conditioning system, the most likely way it can be lost is through a leak in one of the parts. Simply replacing the refrigerant will not solve the root of the problem.

The most frequent causes of a faulty air conditioning unit are:

  • Worn compressor: If your air conditioning suddenly stops working or starts making strange noises, the compressor may need to be replaced. A faulty compressor can also cause oil or refrigerant leaks, which a qualified mechanic can detect with dyes or a special infrared sniffer that can identify chlorofluorocarbon (CFC)-based gases.

  • Broken condenser: When your air conditioner blows air but it’s not cool enough, this can indicate problems with the condenser, although issues with the electric cooling fan or fan clutch could also be responsible. Typically, road debris causes damage to the condenser’s cooling fins and passage tubes, while internal debris prevents proper condenser function by restricting the flow of refrigerant and increasing high-side pressure. All of these cases result in a diminished ability for the condenser to transfer heat.

  • Faulty blower motor or resistor: If the AC system makes noise when you turn it on, but doesn’t push air through your vents, or if the blower only operates at maximum speed, the blower motor or resistor may be responsible.

  • Damaged receiver/dryer: If, in addition to your air conditioner not blowing cold air, moisture is accumulating on your windows that isn’t resolved by defrosting, the receiver is likely in need of replacement. This should be done as soon as possible because an excess of moisture will quickly damage other AC system components. 


  • Blown fuse: Sometimes, the simplest thing to fix can wreak the most havoc. So, it’s wise to check the fuse that controls your air conditioning before assuming the worst. However, simply replacing the fuse without exploring other symptoms can mask the root problem and cause further damage. If you find a blown fuse, take your car in. The mechanic working on your car may need to perform electrical tests to find the high resistance in the circuit and solve the problem that resulted in the blown fuse.

With that said, air conditioning problems can be summarized within 4 basic categories:

  • Hydraulic problems under the hood, such as a lack of refrigerant, too much refrigerant, a lack of adequate compression, or a lack of a refrigerant control device.

  • Electric problems under the hood, such as with the AC clutch coil, clutch relay, high-pressure cut-off switch, low-pressure cut-off switch, or circuit protection device.


  • Electrical problems in the dash, such as the AC switch not working, the computer control head or module going bad, or issues with the blend door command motor.


  • Mechanical problems in the dash, such as the blend door being physically broken, which prevents it from forcing air across the evaporator; the mode door being broken, which prevents it from forcing air though the vents; or the recirculation door being broken and falling into blower motor.

What to expect:

A top-rated mobile mechanic will come to your home or office to determine the source and cause of the AC malfunction. After the inspection, the mechanic will provide a detailed report that describes the air conditioning issue, along with the scope and cost of the necessary repairs.

How it's done:

The mechanic will perform a visual inspection of the air conditioning system, check the refrigerant for the proper charge, use a sniffer to identify any leaks of CFC gas, test the heater controls to make sure the air is being directed across the evaporator and sealing off the heater core, and then check other system components as specific symptoms and issues are identified.

How important is this service?

Air conditioning systems use extremely high pressures and temperatures. If any of the above symptoms happen, please do the safe thing: have your system inspected by one of our expert mechanics.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert BMW mechanics

Real customer reviews from BMW owners like you.

Excellent Rating

(31)

Rating Summary
31
0
0
0
0
31
0
0
0
0

Patrick

32 years of experience
369 reviews
Patrick
32 years of experience
BMW 328is L6-2.8L - AC is not working - Las Vegas, Nevada
After he did his work he did take the car for a test drive and when he returned I ask him what he thought .....he answered " I am confident that the problem is resolved" and I have to agree with him....the problem is resolved, thank you Patrick

Ben

41 years of experience
1416 reviews
Ben
41 years of experience
BMW 740i V8-4.4L - AC is not working - Houston, Texas
Awesome

Alika

15 years of experience
14 reviews
Alika
15 years of experience
BMW 318i L4-1.8L - AC is not working - Tucson, Arizona
Great experience.

James

8 years of experience
128 reviews
James
8 years of experience
BMW 328i xDrive L6-3.0L - AC is not working - Atlanta, Georgia
Awesome

Excellent Rating

(31)

Rating Summary
31
0
0
0
0
31
0
0
0
0
Number of BMW AC is not working Inspection services completed
341+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1100+
experts on our platform

Recent articles & questions

How Long Does a Transmission Filter Last?
Your Your transmission filter is a very important component in your vehicle, because it’s the front line of defense when it comes to keeping contaminants out of your transmission fluid. Most automobile manufacturers recommend a transmission filter change every 2...
Pennsylvania Speed Limits, Laws, and Fines
Following Following is an overview of the laws, limits, and fines as they relate to speeding traffic violations in the state of Pennsylvania. Speed limits in Pennsylvania 70 mph: some sections of rural freeways and the Pennsylvania Turnpike 65 mph:...
10 Best Stores to Buy Auto Parts in Monterey, California
Automotive technicians rely on auto parts stores to add and replace car parts. The best auto parts shop in Monterey is Kyle Racing.

Code P0303 cylinder 3 misfire

The symptoms you describe along with the blinking Check Engine Light and P0303 trouble code definitely tell us that you have a misfire in cylinder number 3 (https://www.yourmechanic.com/article/p0303-obd-ii-trouble-code-cylinder-3-misfire-detected-by-spencer-clayton_2). Your engine uses a coil on plug system. This means each individual...

I have a 2014 Chevrolet impala my gas cap has a yellow gas cap and says E85... Will it be ok to put that in my gas tank with unlea

Hello, yes, it is ok to put unleaded gas as well as E-85 fuel in your vehicle. The vehicle has the ability by way of the computer to calculate the type of fuel and control fuel ratio to get the...

Transmission

The electronic controls in modern cars have a "warm up program" for emissions purposes. By holding the engine revs a bit higher and longer when the engine is cold, it will warm up faster, therefore pollute less. If you are...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (844) 997-3624 · hi@yourmechanic.com