228 Maintenance and Car Care
Information
It is important that the service intervals, particularly the oil change intervals, are observed in accordance with the specifications in the “Maintenance” booklet.
Refueling
The RF energy from a cellphone can cause a sparking on bare metal, much like aluminum foil in a microwave oven. The spark could ignite gasoline fumes present while refueling.fDo not use a cellphone while pumping gas.
Static discharge from your body can ignite gasoline fumes present when you get back out of the vehicle and touch the fuel nozzle.fDo not re-enter the vehicle while pumping gas.
1. Stop the engine and switch off the ignition. 2. Open the filler flap by pressing on the rear part of the filler flap ( arrow). The vehicle must be unlocked.
3. Slowly open and remove the tank cap. Put the tank cap into the holder ( arrow). 4. Insert the pump nozzle fully into the filler neck. The handle of the pump nozzle must point downwards.
Total capacity – approx. 18.0 US gallons (68 liters), including approx. 3.17 US gallons (12 liters) reserve
Refueling Fires / Cellphones
Refueling Fires / Static Electricity
DANGERh
DANGERh
14_991_Turbo_21.book Seite 228 Mittwoch, 9. April 2014 2:19 14
Maintenance and Car Care 229
5.Operate the pump nozzle and refuel the vehicle.Do not add further fuel once the correctly operated automatic pump nozzle has switched off. Fuel could spray back or could flow over when heated.6. Replace the tank cap immediately after refueling and close it until you hear and feel it locking.7. Close the filler flap and press on the rear of the filler flap until it engages securely.
Information
If you lose the tank filler cap, you must replace it only with an original part.
Risk of damage to decorative foils.
Decorative foils may fade if they come into contact with fuel.fWipe off any spilled fuel immediately.
Emergency unlocking of the filler flap
If the electrical release mechanism is faulty, the filler flap can be opened as follows:fOpen the passenger’s door.fPull the button in the right-hand door aperture ( arrow). The filler flap pops open.
Portable Fuel Container
If the portable fuel container is damaged in an accident and fuel escapes, it could ignite or explode.fDo not carry a portable fuel container on journeys.fObserve the relevant laws which prohibit fuel transport.
Vapors from the fuel are hazardous to health.fDo not carry a portable fuel container in the occupant compartment.NOTICE
Transporting Filled Fuel Containers
Portable Fuel Container Vapor Hazard
DANGERh
WARNINGh
14_991_Turbo_21.book Seite 229 Mittwoch, 9. April 2014 2:19 14
230 Maintenance and Car Care
Fuel Recommendations
Your Porsche is equipped with catalytic converters and must use UNLEADED FUEL WITHOUT METALLIC ADDITIVES ONLY .
Your engine is designed to provide optimum performance and fuel economy using unleaded premium fuel with an octane rating of 98 RON/ 88 MON (93 CLC or AKI) . Porsche therefore recommends the use of these fuels in your vehicle.
Porsche also recognizes that these fuels may not always be available. Be assured that your vehicle will operate properly on unleaded premium fuels with octane numbers of at least 95 RON/ 85MON (90 CLC or AKI) , since the engine’s “Electronic Octane™ knock control” will adapt the ignition timing, if necessary.
If fuels of less than 95 RON/85 MON (90 CLC or AKI) are used however, this could reduce performance and increase fuel consumption.fAvoid driving at full throttle.
It is important to observe the regular service intervals, and particularly the oil change intervals, specified in the “Maintenance” booklet.
The use of UNLEADED FUEL WITHOUT METALLIC ADDITIVES ONLY is critically important to the life of the catalytic converters. Deposits from leaded fuels or metallic additives will ruin the converters and make them ineffective as an emission control device. Metallic additives can cause serious engine damage.
Cars with catalytic converters have a smaller fuel tank opening, and gas station pumps that dispense unleaded fuel have smaller nozzles. This will prevent accidental pumping of leaded fuel into cars with catalytic converters.
Unleaded fuels may not be available outside the continental U.S. and Canada. Therefore, we recommend you do not take your car to areas or countries where unleaded fuel may not be available.
Information
In some countries the available fuel quality may not meet the requirements of your Porsche vehicle and can result in coking inside or around the injector bores or other serious damage to the engine, fuel system or exhaust system.
In this case, the fuel may be mixed only with the additive sold and recommended by Porsche after consulting your authorized Porsche dealer.
Porsche part number 000 043 206 89.fObserve the instructions and mixture ratios stated on the container.
It is important that the service intervals, particularly the oil change intervals, are observed in accordance with the specifications in the “Maintenance” booklet.
Risk of destruction of the engine, fuel system or exhaust system if non-approved additives are used.fUse only additives approved by Porsche. The use of other additives can result in destruction of the engine, fuel system or exhaust system of your vehicle.
Octane ratings
Octane rating indicates a fuel’s ability to resist detonation. Therefore, buying the correct octane gas is important to prevent engine “damage”.
The RON octane rating is based on the research method. The CLC (U.S. Cost of Living Council octane rating) or AKI ( antiknock index) octane rating usually displayed on U.S. fuel pumps is calculated as research octane number plus motor octane number, divided by 2, that is written as:
The CLC or AKI octane rating is usually lower than the RON rating:
For example: 95 RON equals 90 CLC or AKI.
Fuels containing ethanol
Do not use any fuels containing more than 15 percent ethanol by volume.
We recommend, however, to change to a different fuel or station if any of the following problems occur with your vehicle: – Deterioration of drivability and performance. – Substantially reduced fuel economy. – Vapor lock and non-start problems, especially at high altitude or at high temperature. – Engine malfunction or stalling.
NOTICE
RON+MON2 R+M2 or
14_991_Turbo_21.book Seite 230 Mittwoch, 9. April 2014 2:19 14
268 Minor Repairs
Row B
Row C
No. Designation A
1 Front lid light Front lid actuator
High beam, FL
Low beam, FL
Side marker light, FR
Turn signal lights, RL, FL
40
2 Raised brake light, spoiler
Rear lid actuator
Rear fog light, right
Reversing light, left
Brake light, left
Tail light, left
Daytime driving light, FL
15
3 Alarm horn 15
4 Interior lighting
Hall sensors
Orientation light
License plate light
Rear wiper electronics activation
Heated rear window relay
Central locking LED
Door panels LED
Ambient light
Raised brake light
Rear fog light, left
Brake light, right
Reversing light, right
Daytime driving light, FR
Tail light, right
15
5 Fuel pump relay and control unit 20
6 Filler flap close/open
Washer pump, front/rear
10
7 Front spoiler control unit 30
8 Air conditioning control unit 7,5
9 Instrument cluster Steering columnstopwatch
10
10 PCM 25
No. Designation A
1 Center console button panel Gateway control unit
Diagnostic socket Ignition lock Passenger compartment monitoring sensorLight switch
Bluetooth phone charger
15
2 Start-relevant loads
Footwell lights
Electric ignition lock anti-removal lock
Turn signal light indicator, FL/FR
Emergency flasher button LED
Electric ignition lock light
Side turn signal lights, FR/FL
High beam, FR
Low beam, FR
Turn signal light indicator, RR
Side marker light, FL
40
3 Vehicle Tracking System control unit 5
4 Horn 15
No. Designation A
5 Cabriolet: Convertible-top lock closing mechanism open/closed
Filler flap
Cabriolet: Convertible top storage compartment catch open/close
Rear spoiler control extend/retract
30
6 Power window control unit, FL 25
7 Headlight cleaning system 30
8 PSM control unit 25
9 Alarm siren 5
10 Not used
No. Designation A
14_991_Turbo_21.book Seite 268 Mittwoch, 9. April 2014 2:19 14