BMW warning lights – what they mean

Has a dashboard warning light appeared on your BMW? It doesn't matter if you drive a 3 Series, X3, X5 or 7 Series, it's important that you don't ignore a dashboard warning symbol as it may indicate your car has a serious or developing problem.,

Your vehicle's dashboard warning lights will usually light up when you switch on the vehicle, before switching off as you release the handbrake and drive away. However, if you've noticed that a red or yellow dashboard symbol is staying switched on, then you need to know how to respond.

BMW warning lights on the dashboard follow a traffic light colour system:

  • Green: the system is working correctly or is currently in use
  • Yellow: something is not working correctly - take extra care and check it out as soon as possible
  • Red: there is a serious, and potentially dangerous problem - stop driving as soon as it is safe to do so

Hopefully you won't see these warning lights anytime soon, but in case you do, ensure you have RAC Breakdown Cover. Travelling abroad? Get RAC European Breakdown Cover in case you see warning lights on your car on your trip away.

RAC Mobile Mechanics also offer repair and diagnostic services, which will identify the cause of your car's warning light and ensure it is repaired to the highest standard. 

BMW warning lights:

bmw-warning-lights-brake-systemBMW brake System warning light
bmw-warning-lights-brake-pad-replacementBMW brake pad replacement warning light
bmw-warning-lights-ABSBMW Anti-lock Brake System (ABS) warning light
bmw-warning-lights-check-engineBMW check engine warning light
bmw-warning-lights-coolant-levelsBMW coolant levels warning light
bmw-warning-lights-coolant-temperature

BMW engine coolant temperature warning light

bmw-warning-lights-engine-oil-level-pressureBMW engine oil level / pressure warning light
bmw-warning-lights-change-engine-oilBMW change engine oil warning light
bmw-warning-lights-battery-charging-systemBMW battery charging system warning light
bmw-warning-lights-airbagBMW airbag warning light
bmw-warning-lights-dynamic-stability-controlBMW Dynamic Stability Control (DSC) warning light
bmw-warning-lights-transmission-faultBMW transmission fault warning light
bmw-warning-lights-tyre-pressureBMW tyre pressure warning light
bmw-warning-lights-suspension-faultBMW air suspension fault warning light
bmw-warning-lights-steering-lockBMW steering lock warning light
bmw-warning-lights-steering-systemBMW Steering System (Integral Active Steering) warning light
bmw-warning-lights-diesel-particulate-filterBMW Diesel Particulate Filter (DPF) warning light
bmw-warning-lights-diesel-exhaust-fluidBMW Diesel Exhaust Fluid (DEF) warning light
bmw-warning-lights-glow-plugBMW glow plug warning light
bmw-warning-lights-brake-lightsBMW bulb out warning light
bmw-warning-lights-fuel-capBMW fuel cap warning light
bmw-warning-lights-start-stop-systemBMW Start/Stop System warning light
bmw-warning-lights-lane-departureBMW lane departure warning light
bmw-warning-lights-frontal-collisionBMW frontal collision warning light
bmw-warning-lights-service-vehicleBMW service vehicle warning light

BMW brake System warning light

bmw-warning-lights-brake-system

The brakes are one of the most important safety features of your car, so it’s important to act immediately when you see this warning light.

On BMW cars, if the brake system warning light is yellow it means that the hill assist function has failed. This safety feature stops the car from rolling back when you start the car on an incline, by automatically holding the footbrake when you first release the parking brake.

If there is a fault with hill assist, take extra care when making any hill starts and get it checked as soon as you can. 

Can I still drive with my Brake System warning light on my BMW?

If the light is red and it remains on after you fully release the parking brake, or comes on when you’re driving, it may indicate that the brake fluid level is low. Unless you know how to check your brake fluid levels yourself, this will be one for the professionals. 

If the ABS (Anti-lock Brake System) warning light is also illuminated, this signals that the braking system has malfunctioned and your brakes may not work properly.

Pull over and stop as soon as it’s safe to do so – keep your speed low and avoid braking suddenly. Don’t risk driving when your brakes are not functioning properly: call for recovery.

If you need assistance you can call the RAC on 0330 159 1111, whether you are a member or not. 

Find a garage

BMW brake pad replacement warning light

bmw-warning-lights-brake-pad-replacement

If this light comes on, it means a sensor has detected that your brake pads are too thin. This BMW warning symbol should come on before the brake pads become dangerously thin, so you have time to get them changed.

You should replace the brake pads as soon as you can though, as if they wear out completely it could be extremely dangerous.

For more information read our guide to brake pads.

Find a garage

BMW Anti-lock Brake System (ABS) warning light

bmw-warning-lights-ABS

ABS is an important safety feature that really comes into play when you need to make an abrupt stop, or in difficult driving conditions like icy roads.

The ABS light will come on briefly to indicate when the system is in use, but if it stays on it may indicate a fault. If the ABS light comes on by itself you should still have normal, unassisted braking, so it's safe to continue your journey – but keep your distance, take extra care, and get it checked as soon as possible.

If it comes on with the brake warning light, it could indicate that the brake system is failing and you should stop straight away and call for recovery. 

For roadside assistance, you can call the RAC on 0330 159 1111, even if you’re not a member.

Find a garage

BMW check engine warning light

bmw-warning-lights-check-engine

On BMW cars this could be called either the Engine Management Indicator or the Malfunction Indicator Lamp (MIL), but you’ll probably know it as the check engine light.

When the check engine warning light is illuminated, it’s often accompanied by tell-tale signs that the engine is not working properly, such as a lack of power or stuttering as you press the accelerator.

This light could indicate a number of faults, from minor issues like a broken electrical sensor, to a much larger mechanical issue, like a fault with your emission control system or catalytic converter. If you need any repairs or a vehicle health check, consider using a RAC Approved Garage or a trusted mechanic

How long can you drive with the check engine light on my BMW?

If the check engine light comes on, you should get it checked as soon as you can. By continuing to drive, you risk causing further, potentially irreparable damage to your engine. 

Use our search tool to find your nearest RAC approved garage.

Find a garage

BMW coolant levels warning light

bmw-warning-lights-coolant-levels

Coolant fluid absorbs the heat from your engine and disperses it through the radiator to prevent your engine from overheating.

This yellow warning light will come on when coolant levels are running low, to remind you to top them up. 

Avoid making any long journeys without enough coolant: you should stop and top up as soon as possible, otherwise you risk causing serious damage to your car. Wait for the engine to cool down before topping up. If this light comes on often, get your car serviced to check there isn’t a leak somewhere.

Find a garage

BMW engine coolant temperature warning light

bmw-warning-lights-coolant-temperature

This light will come on when the engine is overheating. This could mean that coolant levels are running low, perhaps due to a leak in the system, or it could be a sign of a larger problem, like a head gasket failure.

If this light is red you should stop straight away, as without enough coolant your engine could get so hot that it effectively welds itself together, causing irreparable damage.

Stop and wait until the engine has cooled off before checking the gauge on the side of the coolant tank under the bonnet, topping up as required. Read our guide to checking your engine coolant.

While you’re under the bonnet, have a look to see if there are any obvious leaks. If you can’t see any and the light goes off after topping up, then you should be fine to continue your journey. If the light comes back on again after topping up, you should get it checked out to fix the underlying problem.

Find a garage

BMW engine oil level / pressure warning light

bmw-warning-lights-engine-oil-level-pressure

The yellow oil warning light comes on when either the oil temperature gets too high, or the oil level or pressure is too low.

If the oil is not lubricating the engine effectively, it could lead to expensive or even irreparable engine damage, so it’s important to act quickly.

Can I still drive with my Engine Oil Level / Pressure warning light on my BMW?

When this light comes on you should stop as soon as possible and turn off the engine.

Have a look for any obvious oil leaks under the car, and then check the oil levels, topping up if necessary. If the oil levels are fine, then the oil pump may be faulty. In this case, call for recovery, as driving any further could damage the engine. 

Watch our video guide to checking your car’s engine oil.

Find a garage

SALE – up to 40% off*

SALE – up to 40% off*

Roadside cover from £5.49 a month – that’s cheaper than AA!^

 

*Max 40% applies to new Complete cover for 1 vehicle. Ends 17/10, 4pm. ^At least 10% of new customers paid this or less since 12/08. Comparison based on theaa.com closest equivalent cover at 10/10.

 

SALE – up to 40% off*

BMW change engine oil warning light

bmw-warning-lights-change-engine-oil

Your car’s computer will turn on this yellow warning light to alert you that your engine oil is coming towards the end of its lifespan, and will need to be changed as soon as possible.

When you change your oil make sure you reset the computer so it can continue to monitor effectively – consult your owner’s manual to find out how to do this for your BMW model.  

Find a garage

BMW battery charging system warning light

bmw-warning-lights-battery-charging-system

If this light comes on when you’re driving, it indicates that the battery is not charging.

This could be due to a problem with your car’s electrical system and it could have several causes, such as a faulty alternator, faulty battery, bad electrical connection or damaged cabling.

Can I still drive with my Battery Charging System warning light on my BMW?

Your car will run as normal until the battery is dead, but once it is drained nothing in your car will work – so get to a garage quickly before you run out of juice.

Find a garage

BMW airbag warning light

bmw-warning-lights-airbag

When this light goes red, it means that at least one element of the airbag safety system is not working correctly: either the airbag system itself; the front passenger occupant classification system (which detects the front passenger’s weight and position in order to safely deploy the airbag); or the seat belt pretensioner system, which tightens the belt in the event of a crash. 

Can I still drive with my airbag warning light on my BMW?

If the airbag system is not working properly, it may not go off in a crash – or in some cases it could even deploy unexpectedly and cause a crash.

Either way, the airbag system is an incredibly important safety feature of your car so if this light comes on, please get it checked out immediately.

Find a garage

BMW Dynamic Stability Control (DSC) warning light

bmw-warning-lights-dynamic-stability-control

This warning light indicates a problem with traction control.

If it’s flashing, it means the DSC system is intervening – for example, if you’re driving on a slippery road. If the light stays on, it means the DSC system is not working properly.

The DSC light will light up with the word ‘OFF’ if the system has been deactivated, in which case you may have inadvertently turned it off. To check, try stopping and restarting the engine.

If the light remains on after restarting, get it checked at a garage, as the DSC system is an important safety feature.  

Find a garage

BMW transmission fault warning light

bmw-warning-lights-transmission-fault

This BMW warning symbol may indicate a fault with the transmission – often that the transmission fluid temperature is higher than normal – or it could serve as a reminder that your transmission fluid levels are getting low and need to be topped up.

If you have the skills and confidence, you could check and top up the transmission fluid yourself but it’s wise to get any problems checked by a professional, as continuing to drive could cause more extensive damage and automatic transmissions can be expensive to replace.

Find a garage

BMW tyre pressure warning light

bmw-warning-lights-tyre-pressure

Many BMW cars are now fitted with tyre pressure monitoring systems that will let you know when the pressure falls. This could happen over time or it could be because of a puncture.

Either way, low tyre pressure can cause unsafe driving conditions, so reduce your speed and try to avoid braking suddenly or making any violent steering manoeuvres.

Most petrol stations and garages will have an air compressor you can use to check your tyre pressure. Top up the air in the tyres according to the vehicle manufacturer specification in your owner's manual.

If you have a puncture, watch our video to learn how to change a tyre in 10 simple steps.

Find a garage

BMW air suspension fault warning light

bmw-warning-lights-suspension-fault

If this warning light comes on, you’ll probably notice that your BMW feels harder to handle, less stable, and it may be lower to the ground than normal. It could signal a leak in one of the inflatable bags that sit above the wheels and cushions your ride, or it could indicate a problem with the air compressor. 

Can I still drive with my Air Suspension fault warning light on my BMW?

The severity of the problem will impact on your ability to drive safely. If the handling is poor, you should stop as soon as it is safe to do so and call for roadside assistance.

Even if the handling is not adversely affected, without suspension the impact of any bumps or knocks will be transferred to the body of the car, and may cause considerable damage, so drive carefully to a garage to get it checked out as soon as you can.

Find a garage

BMW steering lock warning light

bmw-warning-lights-steering-lock

The steering lock is an anti-theft device that prevents anyone who doesn’t have the keys from driving the car. It effectively locks the steering wheel in position if someone tries to move the wheel when the ignition is off.

A yellow warning light signifies that there’s a fault with the system that you should get checked out as soon as possible.

If the light goes red while you are driving, you need to stop immediately and carefully, and call for roadside assistance, as the steering wheel could potentially lock into position and cause a life-threatening situation. 

Whether you are a member or not, you can call the RAC on 0330 159 1111 for roadside assistance.

Find a garage

BMW Steering System (Integral Active Steering) warning light

bmw-warning-lights-steering-system

Integral Active Steering (IAS) is a feature on some BMW models that adapts the steering dynamically to different driving conditions – increasing the effort needed to steer at low speeds and reducing it at high speeds, while engaging the rear wheels to steer and increase stability. 

When this BMW warning light comes on, you need to perform a test of the IAS system.

With the car parked and the engine running, turn your wheel all the way to the left and then all the way to the right, and repeat several times until the warning light turns off. If the warning light doesn’t go off, there may be a fault with the IAS system that you should get checked out as soon as you can.

Find a garage

BMW Diesel Particulate Filter (DPF) warning light

bmw-warning-lights-diesel-particulate-filter

If you have a diesel BMW, this light will come on if there is a problem with the Diesel Particulate Filter (DPF), which removes harmful soot from the exhaust gases to reduce emissions. It could indicate that the filter has become blocked with soot.

As well as releasing a plume of toxic black smoke every time you press the accelerator, driving with a blocked DPF could cause more serious damage to your car.

You should go to a garage to get it checked as soon as you can, as DPFs can be expensive to replace. 

Learn more about Diesel Particulate Filters and how to maintain them.

Find a garage

BMW Diesel Exhaust Fluid (DEF) warning light

bmw-warning-lights-diesel-exhaust-fluid

If this light turns yellow it means the diesel exhaust fluid level is low, which will eventually prevent your engine from starting.

You should go to get the levels topped up as soon as you can, as once the light turns red, the level has become so low that the engine won’t start again once turned off. 

If you need advice on topping up your DEF levels, read our guide to AdBlue®.

Find a garage

BMW glow plug warning light

bmw-warning-lights-glow-plug

This light will normally turn on when your BMW diesel engine is warming up.

Wait until the light goes off before starting your car. If this light is flashing, it indicates that it’s not working properly and the glow plugs may need replacing.

Can I still drive with my glow plug warning light on my BMW?

Get it checked as soon as possible. A fault with the glow plugs may put the engine into safe mode to prevent any damage to the engine, so you may experience a noticeable drop in performance until the problem is fixed.

Find a garage

BMW bulb out warning light

bmw-warning-lights-brake-lights

This warning light will come on to warn that one of your exterior lights is not working.

If the tail light is cracked and white light is showing through, you’ll need to get this changed immediately as you could get a penalty.

Either way you’ll want to get any broken bulbs replaced as soon as possible, as lights are a crucial safety feature of your car and it won’t pass its MOT without them.

Find a garage

BMW fuel cap warning light

bmw-warning-lights-fuel-cap

In order for the fuel system to work properly, it needs to be completely sealed from the outside.

This light will come on to warn you if the fuel cap is not properly secured, meaning that there is essentially a leak in the system. Pull over as soon as it is safe to do so and make sure the fuel cap is fully closed. It may take a while for the light to go off once you’ve continued driving. 

Can I still drive with my fuel cap warning light on my BMW?

If the light doesn’t go off in a day or two, check the fuel cap to see if there is any damage. If so you may have to get it replaced. 

If it looks fine, and is definitely secured properly, there may be a leak somewhere else in the system that is tricking the computer. Take your car in for a service to find out what’s going on.

Find a garage

BMW Start/Stop System warning light

bmw-warning-lights-start-stop-system

In modern BMWs the Start/Stop system automatically shuts the down engine temporarily when you’re stationary, to reduce fuel consumption and emissions. 

A fault in the system, indicated by this warning light, could have several causes. You’ll be fine to continue driving, but you should take your car to your dealer so that they can check the error code and identify the root of the problem. 

Find a garage

BMW lane departure warning light

bmw-warning-lights-lane-departure

Many modern BMWs have a camera sensor on the front windshield that detects white and yellow lines on the road.

If you’re driving over 40mph and the sensor detects that the car is straying from the lane, without the indicators having been turned on, this warning light will come on and the steering wheel will vibrate. 

Find a garage

BMW frontal collision warning light

bmw-warning-lights-frontal-collision

The Frontal Collision warning system is a safety feature of some BMW cars that uses a sensor to scan the road ahead, measuring the distance and relative speed of the vehicles in front, so that it can warn you if you get too close.

It prepares the brakes for emergency braking if it senses that you’re in danger of collision, adding extra force to your brakes. If a crash is imminent – in which case the warning light will start flashing – the system will automatically apply the brakes and retract the seatbelts to brace you. 

Similarly, when you are driving at slower speeds – for example in a residential area – a red person warning light will alert you if you are in danger of hitting a pedestrian and prepare the brakes to help you react quicker. 

Find a garage

BMW service vehicle warning light

bmw-warning-lights-service-vehicle

The computers in modern BMWs will monitor how many miles you’ve driven since your last car service, and automatically remind you to go for a service when you reach a specified number. 

Find a garage

You should now be an expert in BMW warning symbols!

Are you interested in purchasing some replacement car mats for your BMW? Be sure to check out our range over at the RAC Shop.

SALE – up to 40% off*

SALE – up to 40% off*

Roadside cover from £5.49 a month – that’s cheaper than AA!^

 

*Max 40% applies to new Complete cover for 1 vehicle. Ends 17/10, 4pm. ^At least 10% of new customers paid this or less since 12/08. Comparison based on theaa.com closest equivalent cover at 10/10

 

SALE – up to 40% off*

BMW warning lights and symbols - FAQs

  • How to reset BMW tyre pressure warning light

    This is unsafe to do, unless you have fixed the issue. However, if it is resolved and the symbol still appears you can take these steps. This could be done by opening and closing the bonnet and then turning your vehicle on and off. However, if it still remains on, you may need to disconnect and then reconnect your battery.

    In some cases, it may be that you will need to drive for a while for the car to reset itself. If the lights remain, the issue may still be there or another one could be impacting your vehicle.

  • How to reset BMW warning lights

    Open and close the bonnet and then turn the vehicle on and off. If it still remains, you may need to disconnect and then reconnect your battery. In some cases, it may be that you will need to drive for a while for the car to reset itself. If the lights remain, the issue may still be there or another one could be impacting your vehicle.

  • What do warning lights mean on BMW

    Simply put, there is (or could be) an issue with your BMW vehicle. If the warning symbol is yellow or red, seek assistance as soon as possible.

  • How to reset BMW brake warning light

    Open and close the bonnet and then turn the vehicle on and off. If it still remains, you may need to disconnect and then reconnect your battery. In some cases, it may be that you will need to drive for a while for the car to reset itself. If the lights remain, the issue may still be there or another one could be impacting your vehicle.

  • How to reset BMW tyre warning light

    Open and close the bonnet and then turn the vehicle on and off. If it still remains, you may need to disconnect and then reconnect your battery. In some cases, it may be that you will need to drive for a while for the car to reset itself. If the lights remain, the issue may still be there or another one could be impacting your vehicle.

  • BMW 1 series warning lights

    ​These will appear on the dashboard and are the same as other BMW models.

  • BMW warning lights exclamation mark

    On BMW cars, if the brake system warning light is yellow it means that the hill assist function has failed. This safety feature stops the car from rolling back when you start the car on an incline, by automatically holding the footbrake when you first release the parking brake. If it is red, then there is a serious fault.

  • BMW 3 series warning lights

    ​These will appear on the dashboard and are the same as other BMW models.

  • BMW amber warning lights

    Amber warning lights on a BMW means that something is not working correctly - take extra care and check it out as soon as possible. Visit a mechanic when it is safe to do so.

  • BMW engine warning light

    All BMW’s are filled with lots of sensors that monitor how each system in the car is behaving. The lights on the dashboard display which systems are in use and highlight when one of those systems is not working as it should.

BMW dashboard warning lights FAQs

  • What does engine management light mean on BMW?

    If you see an engine management light on your BMW, it means that your vehicle has detected a malfunction in the engine system. This can be anything from a minor issue to a major fault, and it should be addressed right away. The engine management light usually appears as a yellow or orange symbol on the dashboard and is accompanied by a warning message.

    The most common causes of an engine management light on a BMW are a faulty oxygen sensor, a loose or broken vacuum line, an engine misfire, or an issue with the fuel injection system. Other potential causes include a bad catalytic converter, a faulty ignition coil, or a faulty mass air flow sensor.

    If you notice the engine management light on your BMW, it’s important to take your car to a qualified mechanic as soon as possible. They will be able to diagnose the problem and recommend a repair. Ignoring the warning light can result in further damage to the engine system and potentially costly repairs.

  • Can I drive my BMW with check engine light on?

    If your check engine light is on, it’s best to take your BMW to an experienced mechanic as soon as possible. They will be able to assess the issue and determine the necessary repairs. Even if the issue is minor and easy to fix, it’s important to have it addressed as soon as possible to ensure the safety of your vehicle.

    Ultimately, it’s not a good idea to drive your BMW with the check engine light on - but it can be done for a short period of time as long as there are no other warning lights or other issues.

  • What causes a BMW engine light to come on?

    When the engine light on a BMW comes on, it can be one of several things. The most common cause is a problem with the emissions system. This could be anything from a faulty oxygen sensor, to a loose gas cap, to a faulty catalytic converter. Other causes of the engine light coming on could be a problem with the engine itself, such as low oil pressure, a misfiring spark plug, or a faulty thermostat. In some cases, an issue with the vehicle’s electrical system may be the cause. This could be a loose wire or a failing alternator.

    No matter the cause of the engine light, it is important to take your BMW to a certified mechanic as soon as possible. The mechanic can run a diagnostic test to determine the exact cause of the engine light and provide the necessary repairs.

European Breakdown Cover

European Breakdown Cover

Instant cover available for just £4.17 a day*.

 

*Price is based on European comprehensive breakdown cover for a 14 day trip, in a vehicle up to 1 year old, travelling in zone 1.

 

European Breakdown Cover