ESP VOLKSWAGEN E GOLF 2015 5G / 7.G Service Manual

Flashes Possible cause Proper response
K
The release button in the
selector lever did not engage.
Vehicle movement is pre-
vented.
Engage the selector lever re-
lease button

When the ignition is switched on, several warning and indicator lights come on briefly for a function check. They go out after a few seconds.
WARNING
Failure to heed warning lights and instrument cluster text messages can cause the vehicle to break down in traffic and result in a collision and serious personal injury.
x Never ignore warning lights or text WARNINGS.
x Always stop the vehicle as soon as it is safe to do so.
x Whenever stalled or stopped for repair, move the vehicle a safe distance off the road, turn on the emergency flashers, stop the electric motor, and use other warning devices to warn approaching traffic.
NOTICE
Failure to heed warning lights or text WARNINGS can result in vehicle damage.
General notes on the electric drive

Fig. 119 WARNING labels: A: On every high-voltage component, B: General warning sign for high-voltage

Please perform these steps only in the order listed.
Step Vehicles without Keyless Ac-
cess
Vehicles with Keyless Access
7. Release the parking brake when you are ready to start driving

Noises before driving
A clicking noise may be heard when activating the electric motor.
Recognizing that the vehicle is ready to drive
The electric motor does not make any perceptible noise either when starting or when switched on. It is therefore not possible to tell that the vehicle is ready to drive based on vehicle noise. Instead, the following features indicate that the vehicle is ready to drive:
x The needle in the power display ⇒ fig. 9 (1) is positioned at .
x The illumination of the needles in the instrument cluster is switched on regardless of whether the vehicle's exterior lighting is switched on.
x The text message READY appears in the instrument cluster display ⇒ fig. 9 (3).
x An acoustic signal will sound.
Automatic deactivation of the electric motor
The electric motor is automatically deactivated if the vehicle is left with the electric motor still switched on after driving. In vehicles with Keyless Access, the ignition switches off automatically with a delay of about 30 seconds, to protect the vehicle against unauthorized usage.
Reactivating the electric motor
When the electric motor has been automatically switched off once the driver has left the vehicle, it can be switched back on again within 30 seconds.
The driver door must be closed, the brake pedal depressed and one of the following conditions ful-filled:
x Move the selector lever to position D/B/N or P and lock the safety belt.
x OR: move the selector lever to position D/B/N or P and manually release the electronic parking brake.
When the driver door is closed and no pedals are depressed, the electric motor is reactivated by applying the safety belt if one of the following additional conditions is also fulfilled:
x The selector lever is in position P or N and the electronic parking brake is switched on.
x OR: the selector lever is in position D or B, the vehicle is not crawling and the electronic parking brake is switched on.
WARNING
Never leave the vehicle unattended with the electric motor activated, especially when it is in gear. The vehicle could move suddenly or some other unexpected event could occur, result-ing in property damage, fire, or personal injury.

Lights up Warning text in the
instrument cluster
display
Proper response
- Please charge
battery! Limited
conv. funct.
The remaining range is
just a few miles. The
power is reduced and,
if necessary, electrical
consumers are shut
down. The Eco driving
profile is activated.
Charge the high-
voltage battery as soon
as possible
- Battery almost
drained! Limited
function.
The vehicle can only
be driven with limited
power in reserve mode.
The Eco+ driving pro-
file is activated. Charge
the high-voltage battery
as soon as possible

x Before driving downhill, especially on hills that are long or steep, always reduce speed and shift into an adequate recuperation level. This will let the vehicle use the electric motor braking and reduce the load on the brakes. Otherwise, the brake system could overheat and even fail. Only use the brakes when you need them to slow the vehicle down more or to stop.
Warning and indicator lights

WARNING
Unintended vehicle movement can cause serious personal injury.
x Never get out of the driver's seat while the electric motor is activated, especially when the transmission is in a drive gear. If you must leave your vehicle while the electric motor is acti-vated, always set the parking brake and shift the transmission into Park (P).
x Never leave the vehicle in Neutral (N). It will roll down hills, whether the electric motor is activated or not.
x When the electric motor is activated and a drive gear -(D/B) or Reverse (R) - has been selected, press and hold the brake pedal to keep the vehicle from moving. The vehicle may “crawl” and move forward or backward even if the electric motor is not accelerated.
x Never shift into Reverse (R) or Park (P) when the vehicle is moving.
NOTICE
Even though the transmission is in Park (P), the vehicle may move a couple of inches (a few centimeters) forwards or backwards if you take your foot off the brake pedal after stopping the vehicle without first setting the parking brake.
If the selector lever is moved into Neutral (N) by mistake when the vehicle is moving, take your foot off the accelerator pedal. Wait until the electric motor speed has dropped to idle speed before moving the selector lever into a drive gear.
Brake energy recuperation

Fig. 128 Selector lever for driving mode: Selecting the recuperation level.

NOTICE
x When stopping on hills with the transmission in a drive gear, do not use the accelerator to help prevent the vehicle from rolling backwards. This can cause the electric drive to be dam-aged.
x Never let the vehicle coast or roll down a hill in Neutral (N), especially when the electric motor is not activated.

Lights
up
Possible cause or meaning
⇒  Proper response
H

Lights
up
Possible cause or meaning
⇒  Proper response
J

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.

WARNING
Overheated brakes will reduce the vehicle's stopping power and increase stopping distances considerably.
x When driving downhill, the brakes have to work especially hard and heat up quickly.
x Before driving downhill, especially on hills that are long or steep, always reduce speed and use the recuperation mode. This will let the vehicle use electric motor braking and re-duce the load on the brakes. Otherwise, the brake system could overheat and possibly fail. Only use the brakes when you need them to slow the vehicle down more or to stop.
x A damaged front bumper or a non-standard spoiler can reduce airflow to the brakes and make them overheat.
WARNING
Wet brakes or brakes coated with ice or road salt react slower and need longer stopping dis-tances.
x Carefully apply the brakes to test them.
x Always dry brakes and clean off ice and salt coatings with a few cautious brake applica-tions when visibility, weather, road and traffic conditions permit.
WARNING
Driving when the electro-mechanical brake booster is not working increases stopping dis-tances and can cause accidents and serious personal injuries.
x Never let the vehicle coast when the electric motor is switched off.
x If the electro-mechanical brake booster is not working, a lot more pedal force is needed to slow down and stop.
NOTICE
x Never “ride” the brakes by keeping your foot on the brake pedal when you do not want to brake. Constant pressure on the brake pedal can make the brakes overheat. Riding the brakes will substantially reduce braking performance, increase stopping distance, and can cause complete brake system failure.
x Before driving downhill, especially on hills that are long or steep, always reduce speed and use the recuperation mode. This will let the vehicle use electric motor braking and reduce the load on the brakes. Otherwise, the brake system could overheat and possibly fail. Only use the brakes when you need them to slow the vehicle down more or to stop.
When the front brakes are serviced, you should have the rear brake pads inspected at the same time. The wear of all brake pads should be visually checked regularly. The best way to check for brake pad wear is to have your authorized Volkswagen dealer or authorized Volkswagen Service Facility visually inspect the pads through the openings in the wheel rims or from underneath the vehicle. If necessary, the wheels can be taken off for a more thorough inspection.
Braking assistance systems