warning light VOLKSWAGEN E-GOLF 2019 Service Manual

mance by applying more pressure to the brake pedal. But, during the break-in period, the stopping distance for hard braking and emergency braking will be longer until the brakes are fully broken in. Avoid hard braking and situations that might require hard braking (such as following other vehicles too closely) – especially during the break-in period.
Brake pad wear depends mostly on operating conditions and the way the vehicle is driven. If you do a lot of city and short-distance driving and/or have a sporty driving style, you should have the brake pads checked by an authorized Volkswagen dealer or authorized Volkswagen Service Facility more often than the regular service intervals.
Wet brakes (for example, after driving through water or washing the vehicle or after heavy rainfall) will not brake as well. Stopping distances will be longer when brake discs are wet or, in winter, even icy. Wet or icy brakes must be dried as soon as possible by carefully applying the brakes a couple of times while traveling at a relatively high speed. Make sure nobody is behind you and that you do not endan-
ger yourself or others ⇒ .
Brakes coated with road salt also react slower and need longer stopping distances. If there is salt on the roads and you are not braking regularly, brake carefully and gently from time to time to remove any
salt coating from the brake discs and pads ⇒ .
Brake disc corrosion (rust) and dirt buildup on the brake pads are more likely to occur if the vehicle is not driven much or is driven only for short distances with little braking. If the brakes have not been used and there is some rust on the discs, clean the brake discs and pads once in a while by carefully braking a couple of times while driving at relatively high speed to help clean the brake discs and pads.
Make sure nobody is behind you and that you do not endanger yourself or others ⇒ .
Brake system malfunction
If you brake and find that the vehicle doesn't brake nearly as well as it used to (sudden increase in stopping distance), a brake circuit may have failed. The brake warning light H or "2!+% will light up and a message may appear in the instrument cluster display. If you believe the vehicle is safe to drive, immediately take it to the nearest authorized Volkswagen dealer or authorized Volkswagen Service Facility for repair. Drive slowly and very carefully, allow for the longer stopping distance, and be ready to push longer and harder on the brake pedal to slow the vehicle down.
Electro-mechanical brake booster
The electro-mechanical brake booster works only when the electric motor is activated. It increases the force on the brakes above and beyond the pressure put on the brake pedal by the driver.
If the electro-mechanical brake booster is not working, you will have to push the brake pedal harder to
make up for the lack of booster assistance and the resulting longer stopping distance ⇒ .
WARNING
New brake pads do not provide maximum braking performance.
x New brake pads do not have the best stopping power for the first 185 miles (300 km) and must be “broken in.” You can compensate for the slightly reduced braking force by putting more pressure on the brake pedal.
x Drive with extra care while the new brake pads are being broken in. This reduces the risk of collisions and serious personal injuries due to a loss of control over the vehicle.
x Never follow other vehicles too closely or put yourself into other situations that might require sudden, hard braking, especially when the brake pads have not been broken in.

x ABS stops working if you release or let up on the brake.
When ABS is doing its job, you will notice a slight vibration through the brake pedal and hear a noise. ABS cannot shorten the stopping distance under all conditions. The stopping distance may even be longer, for instance, when driving on gravel or on newly fallen snow covering an icy or slip-pery surface.
Brake Assist (BAS)
The Brake Assist System can help to reduce stopping distances. If you press the brake pedal very quickly, BAS detects an emergency situation. It then very quickly builds up full brake system pressure, maximizing braking power and reducing the stopping distance. This way, ABS can be activated more quickly and efficiently.
Do not reduce pressure on the brake pedal! BAS switches off automatically as soon as you release or let up on the brake.
Anti-Slip Regulation (ASR)
ASR reduces electric motor power directed to spinning wheels and adjusts power to the road condi-tions. Even under poor road conditions, ASR can make it easier to get moving, accelerate, and climb hills.
ASR can be switched on or off manually ⇒  Switching Anti-Slip Regulation (ASR) on and off.
Electronic Differential Lock (EDL and XDL)
EDL is applied during regular straight-line acceleration. EDL gently brakes a drive wheel that has lost traction (spinning) and redirects the drive force to other drive wheels. In extreme cases, EDL automat-ically switches off to keep the brake from overheating. As soon as the brake has cooled down, EDL automatically switches on again.
XDL is an extension of the Electronic Differential Lock system. XDL does not react to drive wheel slippage when driving straight ahead. Instead, XDL detects slippage of the inside front wheel during fast cornering. XDL applies enough brake pressure to this wheel in order to stop the slippage. This improves traction, which helps the vehicle stay on track.
WARNING
Driving fast on icy, slippery, or wet roads can lead to a loss of control and result in serious personal injury for you and your passengers.
x Always adjust your speed and driving style to road, traffic, weather, and visibility condi-tions. Never let the additional safety that ESC, ABS, BAS, ASR, and EDL can provide tempt you into taking extra risks.
x Braking assistance systems cannot overcome the laws of physics and always prevent loss of vehicle control. Slippery and wet roads are still dangerous even with ESC and the other systems!
x Driving too fast on wet roads can cause the wheels to lose contact with the road and “hy-droplane.” A vehicle that has lost road contact cannot be braked, steered, or controlled.
x These systems cannot reduce the risk of accident, for example if you drive too fast for conditions or if you do not keep your distance from the vehicle in front of you.
x Although these systems are very effective and can help you control the vehicle in many difficult situations, always remember that your vehicle handling control is limited by tire trac-tion.
x When accelerating on a slippery surface, for example on ice and snow, depress the accel-erator carefully. Even with these systems, the wheels may start to spin, leading to a loss of vehicle control.

The brake fluid level drops slightly when the vehicle is being used as the brake pads wear and the brakes are automatically adjusted.
Changing brake fluid
Brake fluid must be changed according to the service schedule in your ⇒ Booklet Warranty and
Maintenance. Have the brake fluid checked by an authorized Volkswagen dealer or an authorized Volkswagen Service Facility. Refill only with new brake fluid that meets the standards listed above.
WARNING
Brake failure and reduced brake performance can be caused by not having enough brake fluid in the reservoir or by old or incorrect brake fluid.
x Check the brake system and brake fluid level regularly.
x Always change the brake fluid according to the service schedule in your
⇒ Booklet Warranty and Maintenance.
x Hard braking with old brake fluid may cause vapor lock. Vapor lock reduces braking per-formance, increases stopping distances and can even cause total brake failure.
x Always make sure that only the correct brake fluid is used. Only use brake fluid that ex-pressly conforms to VW Standard 501 14 or, if it is not available, only use a high-quality brake fluid that conforms to U.S. Standard FMVSS 116 DOT 4 requirements.
x Using another brake fluid, or one that is not of high quality, can impair the function of the brake system and reduce its effectiveness. If the container does not say that the brake fluid complies with VW Standard 501 14, or U.S. Standard FMVSS 116 DOT 4, do not use it.
x The brake fluid must be new.
WARNING
Brake fluid is poisonous.
x To reduce the risk of poisoning, never use food, beverage or other non-original containers to store brake fluid. Someone might be misled by the original label on the container, or by the shape of the container, and drink the brake fluid. This could occur even if you relabel the container as “brake fluid.”
x Only store brake fluid in the closed, original container and keep it out of the reach of chil-dren.
NOTICE
Brake fluid will damage vehicle paint, plastic parts, and tires. Wipe any brake fluid off vehicle paint and other vehicle parts immediately.
Brake fluid can pollute the environment. Brake fluid that has leaked out must be collected and disposed of properly, following all applicable environmental regulations.

DANGER
High-voltage systems in the electric motor compartment and in other places on the vehicle can cause electrical shocks or even electrocution, severe burns, other serious injuries, and even death!
x Always assume that the high-voltage battery is fully charged and that all high-voltage components are live.
x Touching damaged orange high-voltage cables, the high-voltage battery or other parts of the high-voltage electrical system can cause fatal electric shock.
x The high-voltage system may also be active even when the ignition is switched off!
x Electrolyte fluid in the high-voltage battery will cause severe chemical burns. If electrolyte fluid contacts skin, thoroughly flush affected area with clean water for at least 15 minutes and then wash affected area with soap and water; medical attention is recommended.
x Never attempt to carry out any work on the high-voltage network, the high-voltage cables or the high-voltage battery.
x Never open, maintain or repair components or parts of the high-voltage network, and nev-er disconnect them from the network.
x Never damage, change or remove the orange high-voltage cables or disconnect them from the high-voltage network.
x Never open, modify or remove the cover of the high-voltage battery.
x Any work on the high-voltage system, or on systems which could be indirectly affected by it, must only be carried out by properly trained and qualified experts.
x Work in the vicinity of high-voltage components and high-voltage cables with machinery, sharp-edged tools or heat sources, for example, welding, soldering, hot air or thermal adhe-sives, may only be performed after the high-voltage components have been disconnected. Only properly qualified and trained specialist staff may work on the high voltage compo-nents.
x The Volkswagen standards and guidelines must be adhered to when carrying out any work on the high-voltage network or the high-voltage battery.
x During such work, keep the vehicle key safe and far enough away from the vehicle to pre-vent any risk of the ignition being accidentally switched on and the electrical system activat-ed (particularly in vehicles with Keyless Access).
x Any gasses emitted by or escaping from the high-voltage battery may be toxic or flamma-ble.
x Damage to the vehicle or to the high-voltage battery could lead to a leak of toxic gases, either immediately or at a later time. These emitted gases could also potentially cause a fire. If damage has been incurred, it is vital to then open the vehicle windows to allow any emitted gases to disperse. Do not inhale these gases.
x Never touch or inhale any liquids or gasses leaking from the high-voltage battery, espe-cially if the battery has been damaged.
x Remember to inform any attending emergency services that the vehicle is equipped with a high-voltage battery.
Warning and indicator lights

The current charge level of the high-voltage battery is displayed in the instrument cluster ⇒ fig. 133.
The current range is also shown on the instrument cluster display ⇒ fig. 9.
When the high-voltage battery is fully charged, the needle in the charge level display points to 1.
the charge level of the high-voltage battery has reached the “reserve range” (A) or the vehicle is driving in the reserve range, various indicator lights will light up in the instrument cluster and text
messages will appear in the instrument cluster display ⇒ fig. 9. Charge the high-voltage battery as soon as possible.
WARNING
Driving when the high-voltage battery charge level is too low can lead to stalling in traffic, collisions and serious personal injury.
x Always make sure that the high-voltage battery has enough charge to get where you are going and that the high-voltage battery can be charged when you get there.
Range of the high-voltage battery

Warning and indicator lights

NOTICE
Failure to heed warning lights or text WARNINGS can result in vehicle damage.
General information on charging the high-voltage battery

Fig. 134 On the rear right of the vehicle: High-voltage battery charge port. A: With cover on lower part (for AC charging only). B: Completely open socket for DC charging.

Control module display ⇒ fig. 136:
No. Display Meaning Proper re-
sponse
(4) Lights up
was detected by
the control unit.
The high-voltage
battery is not
being charged.
charging cable
from the 110 Volt
outlet and the
vehicle and plug
it back in.
- If necessary try
connecting the
cable to another
110 Volt outlet.
- Should the
error occur
again, have
charging cable
checked by a
qualified electri-
cal specialist. Go
to an authorized
Volkswagen
dealer or
Volkswagen
service facility for
assistance.

Enabling the charging process
After a successful self-test, press the button (1) to set the protection unit to ready and enable the charging process. The LED in the protection unit symbol (2) lights up green.
Ending the charging process
If you want to interrupt the high-voltage battery charging process before charging is completed, the charging process must be interrupted or ended on the vehicle
Checking the Ground Fault Circuit (GFI) of the 110 Volt outlet
The GFI should be checked once a month. Carry out this procedure with the charging cable connected to the 110 Volt outlet and the vehicle. The charging process has to be deactivated:
x Press the test button (3) on the control unit of the charging cable for at about 3 seconds.
x If the test was successful, the warning lights (1) and (2) will light up. Should these warning lights not light up or other lights should light up or flash, an error occurred while testing.
x After a successful test and if error occurred, you can start the charging process by pressing the rest button (6) for at least 3 seconds.

Temperature monitoring
During the charging process the charging cable can become slightly warmer. This is normal and no cause for concern
If the control unit or the charging cable becomes too hot, the charging current will automatically be reduced If the control unit or the charging cable continues to get hot even at the lowest charging current, the protection unit will be switched off, and will remain switched off until it has cooled down sufficiently.
If no other sources of heat, such as direct sunlight, can be identified as relevant, have the outlet checked by properly qualified and trained experts.
Charging cable for charging at charging stations (if equipped)
Keep the charging cable for charging at a charging station safely in its bag in the luggage compart-ment. Follow the operating manual for the charging station. Before using the charging cable, read the procedure for charging with alternating current
WARNING
Charging the high-voltage battery improperly, using improper or damaged outlets and charg-ing cables, improper handling of the high-voltage battery or failure to follow safe charging procedures can cause short circuits, electric shock, explosions, fire, burns, injuries and death.
x Always connect the charging cable to a properly functioning 110 Volt Ground Fault Circuit (GFI) wall outlet. The outlet must be properly protected from water, moisture and other fluids.
x Always check the fuse protection of the GFI outlet before connecting the charging cable.
x Never connect the charging cable to a conventional power outlet, regardless of whether the outlet is protected or not.
x Never use the charging cable with an extension cord of any kind.
x Never let plugs or connectors come into contact with water, moisture, or any other fluids.
x Never use any charging cable if it is damaged and never use the charging cable with a damaged GFI outlet.
x Never attempt to alter or repair cables or other electrical components.
x Never let anybody stay in the vehicle while the high-voltage battery is charging.
x Never do any kind of work on the outside or inside of the vehicle while the high-voltage battery is charging.
x Always disconnect the charging cable completely from the vehicle before starting the motor.
WARNING
If you are not familiar with the outlet or the electrical installation or it has not been checked by qualified experts, never use it for charging. Even very low charging currents can cause serious damage and in particular fires if the socket or electrical installation is in bad condi-tion. If necessary, get expert assistance from a qualified electrical installation specialist.
WARNING
If a 110 Volt outlet is being used for charging, never charge 2 or more vehicles on outlets of the same fuse at the same time. Use a different fuse circuit for charging another vehicle. Al-ways comply with the maximum load for the fuse circuit used. If necessary, get expert assis-tance.

NOTICE
Failure to heed warning lights or text WARNINGS can result in vehicle damage.
If the cruise control is switched on when the ignition is switched off, it may be switched on auto-matically the next time the ignition is switched on, depending on vehicle equipment. No speed is stored for the cruise control.
The displays may vary depending on vehicle equipment.
Cruise control operation

Fig. 141 On the turn signal lever: Cruise control buttons and switches.