Mini Cooper is a reputable road companion, yet its a device with hundreds of interconnected parts, and also like any type of other machine it sometimes fail to supply normal operation. In this write-up we go through many common causes of Mini Cooper malfunction and just how you deserve to fix the problem.

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Mini Cooper

The many common reasons that hinders normal starting operation of your Mini Cooper room dead key fob battery, dead 12v battery, corrosion on battery terminals, negative alternator, clogged fuel filter, broken starter, blown fuse, north gas tank, immobilizer error or any kind of fault in the electric system.


1. Weak Battery

If her Mini Cooper’s engine won’t crank or cranks very slowly, then the most most likely culprit is weak or dead 12v battery. Investigating an ext closely and doing a battery voltage test will clarify whether the starting problem is due to the battery. A test have the right to be excellent to measure the voltage in between the battery poles, check the mountain level and also assess the condition of the starter battery.

If a brand-new car battery has been installed, the battery may not have yet got to its full capacity. Over there is nothing to issue about. A brand-new battery only develops its complete capacity end time.

Test 12v battery

The voltage of the battery on your Mini Cooper have the right to be measured specifically with a multimeter. Prior to the test, the multimeter is collection to the voltage range of the battery and also connected come its plus and minus poles. Successful testing of the automobile battery, i.e. Checking the voltage, usually outcomes in values ​​of approx. 12 come 13 volts. Values ​​above 14 or below 11.5 volts call for an expert assessment of the problem of the auto battery. Due to the fact that the battery may have actually a defect v these measured worths ​​and have to be replaced.

Jump start Mini Cooper

If dead battery is the factor for the break down of your Mini Cooper, girlfriend can quickly jump begin it making use of jumper cables and a healthy and balanced battery from one more vehicle, or utilizing a battery booster if available.

First attach red cable to the hopeful terminal of her Mini Cooper’s dead battery, then to the confident terminal the donor battery. Next attach black cable to the negative terminal that donor battery, then to the bare metal in the engine bay of her Mini Cooper. Start the donor vehicle and also then your Mini Cooper. Eliminate the cables in reverse order.


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Illustration because that jump starting procedure

2. Corrosion ~ above battery

Corrosion top top the contacts of your automobile battery leads to loss of contact and also reduced existing flow, which method that your engine have the right to no much longer start properly.


To understand if your Mini Cooper’s starting problems are from dirty battery contacts, you must investigate them. If girlfriend lift the rubber covers over the 2 battery terminals, you can inspect the terminals because that corrosion. If you find white shop or silvery-green deposits, yet no further cracks or damage, you carry out not have to replace the battery, simply clean it.

Clean battery corrosion

To clean the battery on your Mini Cooper, you need to remove the pole cables first, which requires no one-of-a-kind knowledge, just a little concentration, together the bespeak is really important. First remove the black color cable indigenous the an adverse pole. If the pole clamp is an extremely tight, you can open it through pliers. We advise against using metal pliers, however if you use them, you must make certain that you carry out not touch any kind of other components of the body. Next you have the right to unplug the red hopeful pole cable. When the battery has been gotten rid of from the circuit, you have the right to start clean the corroded battery. After ~ cleaning, reconnect the terminals.

3. Weak key fob battery

If your Mini Cooper has actually push start/stop button, climate its feasible that your car may not start due to weak key fob battery. Don’t worry, you have the right to still start your vehicle – the battery is only used to send the signal because that locking/unlocking. If the vital fob battery is empty, the door no much longer locks or unlocks at the press of a button. The doors must then be opened manually. The immobilizer is controlled by a passive transponder. Passive means, among other things, the the transponder in the key does not require its own power source.

How to begin Mini Cooper v dead crucial fob battery

If you have a version of Mini Cooper which only has actually a an essential fob through start/stop button and no location to insert a key, then shot placing your vital fob together close to the start/stop button as girlfriend can and then begin the vehicle. If the doesn’t work, climate look in her vehicle’s operational hands-on for specific location of an essential fob placement, together it might vary depending on model.

Tip: You have the right to try beginning your Mini Cooper through its second key. The will also rule out any type of other trouble with the first key, because that example, water damage.

4. Broken starter motor

A starter is a motor for beginning the engine of her Mini Cooper. The median life of a starter motor is around 100,000 to 150,000 miles, and the life will certainly be reduce if the engine is started much more frequently. In any kind of case, due to the fact that the starter motor likewise has a restricted life, the will malfunction after using the car for a long time, and also if the starter motor breaks down, the engine will not start.

Symptom: when you turn the key to start the engine of your Mini Cooper, you will certainly hear a click sound, i beg your pardon is the sound the a negative starter motor. And if the starter motor does not work-related with a healthy battery, suspect a failure of the starter.

If the starter fails, that usually demands to be replaced with a new one.

Temporary solve for starter

If the engine does no start as result of the starter, the engine might start if you turn the an essential while hitting the starter motor with something favor a rod or steel tool. This workaround is effective when the parts inside the starter are stuck with each other or the gears room slightly out of alignment.

However, that is possible that the starter is nearing the end of the life, so the is recommended that you have it inspected in ~ a dealer or maintenance shop.

5. Defective alternator

An alternator is a generator that produces electricity. If her Mini Cooper’s alternator fails, it will certainly not have the ability to produce electricity and also the battery will not be able to charge. Therefore, even if friend think the the reason of the engine not beginning is a battery failure and also replace the battery, the battery will soon run out and also the engine will not start.

Alternators rarely break down. In particular, contemporary cars have improved performance, so that is stated that they will certainly last 200,000 come 300,000 miles. Still, it can breakdown depending on exactly how you usage it, and also in the situation of a offered car, the alternator may be fairly old. Don’t let her guard down.

If the alternator breaks down, it need to be changed with a new alternator.

6. Clogged fuel filter

The fuel filter of your Mini Cooper does no wear out choose a mechanical part, but it it s okay clogged by dirt and also airborne particles and clogs over time. The permeability the the filter drops, and so go the fuel pressure. To a details extent this no matter, yet if the fuel filter is as well dirty, the engine will no much longer perform at full capacity and in some circumstances may not begin at all. Clean is not possible, you deserve to only readjust the filter.

7. Fuel pump failure

If her Mini Cooper’s fuel pump fails, climate the engine won’t start. The pump generally ensures the the essential amount of fuel is passed native the tank to the injection device of the engine with enough pressure.

Before her fuel pump stops working, it usually becomes noticeable: if your car’s engine breaks under from time come time, the auto is difficult to start, the engine jerks a small or the engine power drops, friend should have your pump checked.

Wear or contamination of the pump can be the factor for this. If the pump is leaking, a power call is broken, a line or a pump bar is broken, the fuel pump is usually additionally noticeable prior to failure. You deserve to have a defective fuel pump changed in your workshop.

8. Puffy fuse

In rarely cases, a swollen fuse could additionally be the culprit in the failure of your Mini Cooper. Check all fuses in the fuse box crucial for beginning the engine. But, be cautious when loan a hand you yourself to the fuse box! the box is under power and repairs or tests should always be excellent in a workshop.

9. Defective spark plugs

Without functioning spark plugs, the engine will certainly not start. The spark plugs themselves are often not impacted by a defect. Instead, plug relationships on the ignition mechanism come loose. If only one plug is actually loose, you can fix the difficulty yourself on site. If a spark plug has failed, it have to be changed in the workshop.

10. Rodent damage

Rodent damages can be an additional reason why her Mini Cooper won’t start. The animals crawl under the vehicle and bite v cables and wires. In principle, this can influence all vehicle systems such together the fuel supply, the oil supply or the strength supply.

The rodent damages can normally be seen easily by looking into the engine compartment. The damage caused by the rodent bite can be repaired in the workshop. Be prepared for reasonably high expenses here.

11. Engine failure

Although really rare, however it can additionally be the cause of the malfunction of her Mini Cooper. If a vehicle has an engine failure, climate nothing functions anymore. It is not unusual for the driver that a car to it is in responsible for such damage. Typical causes include tearing of the time belt, untrue fueling, inadequate oil, hydrolock, overheating of the engine, or continuous driving in an excessive speed range.

Only an knowledgeable mechanic can diagnose engine fail in a workshop.

Use OBD2 scanner for diagnosis

Since Mini Cooper is equipped v on-board diagnostics (OBD), a error diagnosis can provide initial indications of whereby the breakdown is located.

To begin troubleshooting, you must very first connect the diagnostic tool to your Mini Cooper. The OBDII connector is usually situated under the dashboard. With the cable connected, you need to turn the ignition on. But be careful not to begin the engine. Many diagnostic tools then asking for part information around the vehicle. That is vital that you go into this 100% correctly, otherwise the result of the search might be falsified. In addition to the auto manufacturer and also model, friend usually also have to kind in the engine and vehicle i would number. For exact troubleshooting, always check even if it is the details is correct.

Conclusion

There are plenty of reasons why her Mini Cooper may not start. When looking for the trigger, girlfriend should always start through the most apparent cause, the north battery.

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In any case, that is advisable for laypersons to speak to a break down service or a workshop. In the occasion of a defect, the latter can directly initiate the repair.