How to reset brake pad light on bmw x3

how to reset brake pad light on bmw x3

In most automotive repair shops, brake jobs are part of the daily bread-and-butter, straight forward repairs that involve parts replacement with little or no diagnosis.

Occasionally, however, a job of this sort can throw you an unexpected curve.

Brake Pad Sensor Testing

One such kink in the otherwise straight path of a brake job involves the BMW that comes in with the brake pad warning light on and, upon inspection, needs pad replacement at one or both ends. After replacement and service of the rotors if necessary has been completed and the car is test driven, the pad warning is still glowing brightly in the instrument cluster. The wear sensors were not replaced because they looked fine -- no broken wires, no contact with the brake rotors.

But how to reset that pesky warning light? All BMWs built after about have a pad wear warning light, and almost all of them work in the same way. A control unit built into the instrument cluster circuit board sends battery voltage out to the left front wear sensor, through that sensor, to-and-through the right rear sensor, and back to the cluster.

If the control unit does not see a return voltage within approximately 1 volt of what it sent out, it turns on the warning light. There is no reset for this system.

2015 BMW X5 Brake reset

The control unit will turn off the warning light when it sees the correct return voltage, which means a sensor wire that is broken or shorted to ground will turn on the warning -- but so will a high resistance in the circuit. If a sensor makes contact with a brake rotor and exposes even a tiny bit of the sensor wire, the resulting corrosion can cause enough of a voltage drop to turn on the warning light, even with no further contact with the rotor.

Disconnecting the sensors, in turn, and putting jumper wires across the pin contacts on the harness side to see if the warning goes off will usually determine which sensor is the culprit. These wires are usually a very light gauge and even a nick in the insulation can cause enough corrosion to set off the pad wear warning. For more information on Identifix, visit www. Related Topics: brakesService baystechniciansunder-car service.

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Hottest Questions. Previously Viewed. Unanswered Questions. BMW 3-Series. How do you reset the brake pad light on a BMW X3?

Wiki User The brake pad sensor light is reset by leaving the key on engine off for about 20sec. If it does not reset retry, if it still does not reset check the wiring of the left front and right rear pad sensors. After replacing pads and sensors, turn the ignition key on and leave on for approximately 2 minutes. This resets the brake pad wear warning light. How do you reset the brake pad warning light for a c mercedes benz?

Change the brake pads sensors. You must change them after every brake pad swap. After your brake pads have been replaced, scroll to the brake pad life display. On the brake pad life display hold the scroll button in until the brake pad life goes to percent. Put key in ignition in the second position and open the driver door. You need to replace the brake pad sensors there's only 2 - one for the front and one for the rear and the light will reset itself. Replace the brake pads. You must replace the brake pad sensors inside or on the rear calipers The brake pad wear sensor is on the brake pads.

On my ti, the sensor is on the left side, on the inboard pad. Asked in BMW What is a brake pad wear indicator for? The break pad wear sensor on your BMW is mounted on a front drivers side brake pad and will display a light on your active check control panel when your pads need to be replaced. As far asI'm aware it should reset when new wear sensors are installed in the new pads automatically as new wear sensors are required every time they wear down enoug to turn the light on.

Just turn the key to on second position - where you see all the lights come on the dashboard and wait till the brake wear indicator light go off. If you replaced the tripped brake wear sensor, the light will go off in about secondsAfter you replace the brake pads on your BMW and the brake pad wear sensoryou need to perform the procedure to reset BMW brake light. In this guide, you will find instructions on how to reset BMW brake light using a few different methods.

If you are unsuccessful at resetting BMW brake light, an alternative method is provided to help you reset BMW brake light with a tool. These steps will work on BMW including models such as 1-series, 3-series, 5-series, 6-series, 7-series, x1, x3, x5. If you are not able to reset the brake light check the condition of the brakes on the opposite axle. For example, if you replaced front brake pads and sensor and you can't reset the brake light, you should check the condition of the rear brake pads as well.

Before You Start Perform the following steps quickly. In some cases, you may have to perform the BMW brake reset procedure more than once. BMW brake light reset procedure can be performed for front or rear brakes. Procedure Turn on the ignition but do not start the car. Make sure time is shown at the center of the instrument cluster.

Press and hold the ODO reset button for about 5 seconds. First, a yellow triangle will show on the dash. Continue holding the ODO reset button pressed, until the next symbol comes up. Press the ODO reset button a few times until you see the symbol for front or rear brakes.

Depending on which sensor you replaced and would like to reset. Once the word reset displays below the brake symbol, quickly release the button and press it again. Continue holding the ODO reset button until the brake light disappears. The miles should change to indicating the reset was performed successfully. The next time you will be reminded to change your BMW brakes is miles for front brakes and for rear brakes. Even though these intervals may vary between models.

Turn on ignition but do not start the engine. Press and hold the BC button until time and mileage show up on the center of the instrument cluster. Next, press and hold the ODO Reset button. A yellow triangle will show up first. Continue to hold the ODO reset button pressed until you see the next symbol on the screen. Press the Check button on the steering column stalk until you see the Front Brakes or Rear Brakes symbol. Add new comment.During these challenging times, we guarantee we will work tirelessly to support you.

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We will get through this together. Updated: September 17, References. Servicing you BMW requires you to also reset the service light.

The operation for resetting BMW service lights is not the same across the range, so this is the order of operations for any X5 or X6 E70 or E Log in Facebook Loading Google Loading Civic Loading No account yet? Create an account. We use cookies to make wikiHow great. By using our site, you agree to our cookie policy. As the COVID situation develops, our hearts ache as we think about all the people around the world that are affected by the pandemic Read morebut we are also encouraged by the stories of our readers finding help through our site.

Article Edit. Learn why people trust wikiHow. To create this article, 10 people, some anonymous, worked to edit and improve it over time. Together, they cited 5 references. This article has also been viewedtimes. Learn more Explore this Article Steps. Tips and Warnings. Related Articles. Insert your remote key into the key slot.

Next press the 'Start Stop' button once without putting your foot on the brake. You should see numerous lights turn on in the dash. Wait for any warning lights to go out. In some cases, such as a low fuel warning light, you may need to press the 'BC' button on the end of the indicator stalk once to remove them. Press and hold the black button. It is located on the bottom left of the speedometer instrument cluster. An exclamation mark will appear in the screen in middle of the speedometer, but keep holding down the button until the next picture appears- then let go.

Cycle through the images. One by one, go through all of the picture options for each service. When you arrive at the service that you wish to reset press and hold the black button until the text 'Reset? Finally press and hold the button again to confirm the reset.Remember Me? Welcome to the ultimate BMW X3 community. Hi folks, Neighbour and I replaced the rotors and pads on my x3.

However, the warning light for replacing pads remains on. Anyone know how to turn it off or reset it?? Appreciate 0. Procedure is : seat yourself with seatbelt on.

how to reset brake pad light on bmw x3

Appreciate 1. I have had the brakes and sensor replaced, but still get the warning light for the rear brakes. I follow procedure to reset it, but it displays "reset impossible".

I had the sensors replaced but still same message. The front sensors reset fine. Lieutenant General. Originally Posted by gismo3. Biggest cause of new sensors not resetting, is a bad sensor even though it's new.

Trying plugging your old sensor back in if you still have it and it's not worn. My rear sensor was newbut would not reset. Mechanic who installed the pads told me that almost all new sensors that will not reset are defective. I've read in forums for other BMW model owners, especially those who race, of bypassing the sensor my cutting the "head" off and twisting the wires together to complete the circuit.

Not for sure if this would work on F Mechanic mentioned something about the sensor was "magnetic". I don't know if this is true or if it is the magnetic acts like a generator causing a current; or is the current cause by the battery system.BMW X3 service brakes consist of hydraulic brake calipers and rotors, one at each wheel. When the brake pedal is pressed, brake fluid is forced out of the brake master cylinder and through the brake lines to each brake caliper. Pistons in the calipers push out and clamp brake pads against the brake rotors or discsthus slowing down the vehicle.

A vacuum assisted brake booster multiplies the braking force exerted by the driver at the brake pedal. The parking or emergency brake is integrated into the rear brake caliper. A pair of mechanically operated cables attached to the parking brake handle actuate parking brake lever inside the caliper.

You should check your brake pads every time you service your BMW. Replace your brake pads if thickness is 2. There are brake pad wear sensors that trigger a warning light when pads reach the minimum; however the sensor is only located on one brake pad per axle, left front and right rear outer pads. This leaves three brake pads on each axle that are not monitored by the warning system.

AutoFocus: A warning about BMW brake pad warning lights

This is why periodic inspections are required. When replacing your brake pads, you can replace pads on one axle at a time. Have a new brake pad wear sensor handy. Even though the sensor may be reused, they become brittle and do not always fit tightly into new pads when reused. It is now more dedicated and prone to breaking when removed. This provides the vehicle with more accurate brake pad monitoring.

So if the sensor shows the slightest bit of wear, replace it. Keep in mind that when your car was serviced before, parts may have been replaced with different size fasteners used in the replacement. The sizes of the nuts and bolts we give may be different from what you have, so be prepared with different size sockets and wrenches. Protect your eyes, hands and body from fluids, dust and debris while working on your vehicle.

If working with the electrical system, disconnect the battery before beginning. Always catch fluids in appropriate containers and properly dispose of any fluid waste.

how to reset brake pad light on bmw x3

Recycle parts, packaging and fluids when possible. Never work on your vehicle if you feel the task is beyond your ability. Our vehicle may vary slightly from yours as models do change and evolve as they grow older.

If something seems different, let us know and share your info to help other users. Questions or want to add to the article?

how to reset brake pad light on bmw x3

Leave a comment below. When leaving a comment, please leave your vehicle information. Lift and support the axle you are replacing the brake pads on. See our tech article on jacking up your vehicle. The brake pad wear sensor on the front axle is located in the left front brake caliper red arrow. The rear sensor is located in the right rear caliper. First, you will have to remove the pad wear sensor to inspect it.

Look for wire damage, sensor wear or cranking.Remember Me? How to reset brake pad warning after a brake job? Does anyone have any knowledge of the sorcery required to reset the brake pad fault? The brake pad service alert popped up last week, so yesterday I replaced the pads and rotors, and of course the pad sensor. Now it tells me "reset impossible. What gives? Attached Images. Appreciate 0. Originally Posted by S4NoMore. Originally Posted by John in VA. Find More Posts by obriennathaniel. Originally Posted by Busa1.

It might be that a drive cycle was required to get this to reset. Not entirely sure. It seems that using a jumper or other means of shorting out the sensor, to trick the dme into thinking it's there with nearly zero resistance, is not going to work.

Second Lieutenant. OK Similar thing happened to me. I changed my oil about miles ago and the service indicator says miles to the next oil change. Now, I have driven miles since the oil change and the service indicator says miles to the next oil change instead of Anyone know what is going on?

Did you recheck everything over that nothing is loose, all connections are good, etc. Could it be a bad break pad sensor? Originally Posted by M Originally Posted by esq. Lieutenant Colonel. I reset my front brakes Sunday after new pads worked for me now showing 37k next pad change, im sure the hand brake has to be down for the reset to work.

Major General. Find More Posts by Billfitz. Brigadier General. Bought CPO X3 18mos ago, showed miles until brake pads need replacing. Says it needs an oil change in December