2015 VOLKSWAGEN E GOLF ECU

The design of the wheel bolts is matched to the factory-installed wheels. If different wheels are in-stalled, wheel bolts with the right length and bolt head shape must be used. This helps to ensure that
wheels can be mounted securely and that the brakes will work correctly ⇒  Changing a wheel.
In most cases, you cannot use wheel bolts from a different vehicle. Even wheel rims from the same model may not fit properly.
Tires and wheel rims approved by Volkswagen have been matched precisely to your vehicle model and contribute considerably to good handling and safe vehicle performance.
Tightening torque
Wheel bolts must always be installed with the correct tightening torque ⇒  Changing a wheel. The required tightening torque for your vehicle's wheel bolts is 88 ft-lbs (120 Nm). After changing a wheel, the bolt torque must be checked as soon as possible with an accurate torque wrench. See an author-ized Volkswagen dealer or an authorized Volkswagen Service Facility.
Wheel rims with bolted rim rings
Wheel rims with bolted rim rings have several parts. The parts are bolted together with special screws in a special process. This helps to ensure that they will work properly, prevent leaks, run true and safely. Damaged wheel rims must be replaced, and you must never take them apart or try to repair them yourself. Have an authorized Volkswagen dealer or an authorized Volkswagen Service Facility
repair them for you ⇒ .
Wheel rims with bolted decorative covers
Light-alloy wheels may have interchangeable decorative covers attached to the rim with self-locking screws. If you want to replace damaged wheel covers, contact your authorized Volkswagen dealer or authorized Volkswagen Service Facility.
WARNING
Using improper or damaged wheel rims can affect driving safety, cause accidents and severe personal injury.
x Use only wheel rims approved for the vehicle.
x Regularly check wheel rims for damage and replace them if necessary.
WARNING
Improper loosening and tightening of the bolts on wheel rims with bolted rim rings can cause accidents and severe personal injury.
x Never loosen bolted connections on wheel rims with bolted rim rings.
x Have all work on wheel rims with bolted rim rings performed by an authorized Volkswagen dealer or authorized Volkswagen Service Facility.
New and replacement tires

x After installing the spare wheel or compact spare wheel, check the tire pressure as soon as possi-
ble ⇒  Tire inflation pressure.
Check the tire inflation pressure of the spare or compact spare whenever you check the tire pressure of the road wheels, at least once a month. Inflate a spare wheel to the cold tire pressure specified for the vehicle's road wheels on the tire pressure label; inflate a compact spare wheel to the cold tire pressure specified for the compact spare on the tire pressure label or on a separate label for the compact spare, if there is one.
WARNING
Improper use of a spare wheel or a compact spare wheel can cause loss of vehicle control, a crash or other accident, and serious personal injury.
x Never use a spare wheel or compact spare wheel if it is damaged or worn down to the wear indicators.
x In some vehicles, the spare wheel or compact spare wheel is smaller than the original tire. A smaller compact spare wheel is identified with a sticker and the words “50 mph” or “80 km/h”. This is the maximum permissible speed when driving with this tire.
x Never drive faster than 50 mph (80 km/h) with a compact spare wheel. Avoid full-throttle acceleration, heavy braking, and fast cornering!
x Never drive more than 125 miles (200 km) if a compact spare wheel is installed on the front axle (drive axle).
x Replace the compact spare with a normal wheel and tire as soon as possible. Compact spare tires are designed for brief use only.
x Regularly check the U.S. DOT Tire Identification Number (TIN) to determine the age of the
compact spare wheel ⇒  Tire labeling. Tires age even if they are not being used and can fail suddenly, especially at higher speeds.
x Tires that are more than 6 years old can only be used in an emergency and then with spe-cial care and at lower speeds.
x The compact spare wheel must always be secured with the wheel bolts provided by the factory.
x Never drive using more than one compact spare wheel.
x After installing the compact spare wheel, the tire pressure must be checked as soon as
possible ⇒  Tire inflation pressure.
x Snow chains cannot be used on the compact spare wheel. If you must use snow chains and have a compact spare wheel mounted, move the compact spare wheel to the rear axle if a front tire has to be replaced. The tire taken off the rear axle can then be used to replace the flat front tire. Be sure you do not change the tire's direction of rotation. Install the snow chains on the full-sized road tire.
NOTICE
When the spare wheel or compact spare is being used, the TPMS indicator light can light up
after a couple of minutes ⇒  Tire Pressure Monitoring System (TPMS).
If possible, attach the spare wheel, compact spare wheel, or the wheel you took off the vehicle securely in the luggage compartment.

x The charging port (B)
x Covers on components of the high-voltage system (B)
Power output of the electric motor
The maximum torque of the electric motor is available as soon as you press the accelerator pedal ⇒ 
.
As the charge level of the high-voltage battery increases, the recuperation and thus also the electric motor braking effect will decrease when the vehicle is braked and when the vehicle rolls in overrun mode or drives downhill. No brake energy recuperation occurs and therefore no electric motor braking
effect is available once the high-voltage battery is fully charged ⇒ .
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 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 Any work on the high-voltage system, or on systems which could be directly or indirectly affected by it, must only be carried out by properly trained and qualified experts.
WARNING
Rapid acceleration can cause loss of traction and skidding, particularly on slippery roads. This can cause you to lose control of the vehicle, which can lead to accidents and serious injuries.
x Always adjust your driving style in accordance with the flow of traffic.
x Only use the kickdown or fast acceleration if visibility, weather, road and traffic conditions permit, and other road users are not put at risk due to the acceleration and the driving style.
WARNING
Medium, high and very high recuperation can lead to loss of traction and skidding, particular-ly on slippery roads. This can cause you to lose control of the vehicle, which can lead to accidents and serious injuries.
x Only use medium, high or very high recuperation if visibility, weather, road and traffic conditions permit, and other road users are not put at risk due to the vehicle's acceleration and your driving style.
WARNING
The higher the charge level of the high-voltage battery, the lower the electric motor braking effect, to the point where no electric motor braking effect may be generated at all.
x Reduce your speed before driving down a long, steep gradient.
x When driving down a long, steep gradient, slow the vehicle using the vehicle brake.

Power availability display

Fig. 123 In instrument cluster: power display with ranges for energy consumption A and for recuperation B

Fig. 124 In the instrument cluster: power availability

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

Selector
lever
position
Designation Meaning ⇒ 
ard driving
position)
The electric drive is in the normal program
(brake energy recuperation levels 0 - 3).
"
Very high
brake energy
recuperation
Very strong brake energy recuperation in over-
run mode (brake energy recuperation level 4).
+ Changing
gear selection
Switch between (D) and (B) by pulling the
selector lever once to the rear from gear posi-
tion D/B ⇒ fig. 127. The selector lever always
returns to gear position D/B.

Automatic Shift Lock (ASL)
The Automatic Shift Lock (ASL) in Park (P) and Neutral (N) prevents drive positions from being en-gaged inadvertently, which would cause the vehicle to move.
To release the ASL, depress and hold the brake pedal with the ignition switched on. Press the release button on the selector lever at the same time.
The ASL is not engaged if the selector lever is moved quickly through Neutral (N) (e.g., when shifting from Reverse (R) to Drive (D/B)). This makes it possible to “rock” the vehicle backwards and forwards if it is stuck in snow or mud. The ASL engages automatically if the brake pedal is not depressed and the lever is in Neutral (N) for more than about 1 second and the vehicle is traveling no faster than about 3 mph (5 km/h).
In rare cases, the ASL may not engage. If this happens, power to the drive wheels will be interrupted to prevent the vehicle from moving unexpectedly. The green indicator light K will blink and a text message will be displayed. To engage the Automatic Shift Lock (ASL):
x Depress and then release the brake pedal. Try to engage the ASL again.
WARNING
Moving the selector lever to the wrong position can cause loss of vehicle control, a collision, and serious personal injury.
x Never accelerate when moving the selector lever.
x When the electric motor is activated and a drive position is engaged, the vehicle will start to move as soon as the brake pedal is released.
x Never shift into Reverse (R) or Park (P) when the vehicle is moving.

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.

There is no brake energy recuperation when the high-voltage battery is completely charged. In this case, you may notice slightly greater brake pedal travel and less initial braking power by the electric motor. This is normal and no cause for concern.
Above a battery charge level of 85%, the braking power by the electric motor decreases regardless of the selector level position and/or the brake energy recuperation stage. This is also normal and no cause for concern.
Selecting a brake energy recuperation level
There are a total of 4 brake energy recuperation levels. It is possible to move up and down through
brake energy recuperation levels 1 to 3 by tapping the selector lever to the side ⇒ fig. 128 (+) and (-):
x Tap to the left, to switch up 1 recuperation level.
x Tap to the right, to switch down 1 recuperation level.
x Press to the right for a few seconds to switch off recuperation.
To change up to brake energy recuperation level 4: Pull the selector lever to position B. Pulling again in the direction of the arrow