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Practical Tips, Emergency Service
265
Connect jumper cables in the following
sequence:
Always observe the sequence below:
1. Connect the positive lead (red) to the
positive terminal of the discharged battery
first, then connect it to the positive terminal of
the donor battery.
2. First connect the negative cable (black) to
the negative terminal of the donor battery, then
connect it to a suitable grounding point on the
vehicle with the discharged battery.
This grounding point must lie as far as possible
from the battery.
For example, a solid metal part or the engine
block are suitable grounding points.
If no suitable grounding points are to be found
on either vehicle, the negative cable must
carefully be connected directly to the negative
terminal of the battery.
If a suitable grounding point is to be found only
on the donor vehicle, the negative cable must
first be connected to the terminal of the
discharged battery, then to the grounding point
of the donor vehicle.
3. Run the engine of the donor car at a higher
speed.4. Start the engine.
An attempted start using jumper cables should
not last more than 15 seconds. Then allow a
waiting period of at least one minute.
Note
Before disconnecting the jumper cables, electrical
loads such as the heated rear window and the
heating fan blower should be switched on (the ve-
hicle’s lights must not be switched on). This reduc-
es voltage peaks which may occur when discon-
necting the jumper cables.
With the engine running, remove both jumper ca-
bles in reverse order.
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Practical Tips, Emergency Service
279
Adjusting HeadlightsfPlease observe the chapter “LIGHTS, REPLA-
CING BULBS” on Page 266.
Adjustment
The adjustment is made with the vehicle ready to
drive and the fuel tank completely filled.
The driver’s seat must be loaded by a person or a
165 lbs. (75 kg) weight and the tire pressures
must meet the prescribed values.
After being loaded, the car must be rolled a few
meters so that the suspension can settle.
For checking the headlight adjustment, the verti-
cal position of the cutoff of the lowbeam (see fig.)
has to be projected on a vertical screen (wall) in
distance of 7.5 m (24.6 ft.) from the front lens of
the headlamp.
The correct position of the cutoff is 5 cm (2.0 in.)
at 7.5 m or 24.6 ft. (0.4°) below a horizontal line,
x cm from ground to the center of the headlamp
lens. Lateral adjustment of the headlights should be
carried out at a specialist workshop with an optical
adjustment unit.
Distance
Visual aim shall be performed at not less than
7.5 m (this value is a rounded down conversion
from the 25-foot distance typical of field aim using
a screen). The 7.5 m (24.6 ft.) distance is meas-
ured from the headlamp lens to the viewing
screen.
f f f
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288
Technical Data
Tires, Rims, Tracks 911 Carrera, 911 Carrera S
Tire Rim Rim offset Track
Summer tires*front 235/40 ZR 18 (91Y) 8 J x 18 H2 57 mm 58.5 in./1486 mm
rear 265/40 ZR 18 (101Y) XL 10 J x 18 H2 58 mm 60.4 in./1534 mm
orfront 235/35 ZR 19 (87Y) 8 J x 19 H2 57 mm 58.5 in./1486 mm
rear 295/30 ZR 19 (100Y) XL 11 J x 19 H2 67 mm 59.7 in./1516 mm
orfront 235/35 ZR 19 (87Y) 8.5 J x 19 H2 55 mm 58.7 in./1490 mm
rear 305/30 ZR 19 (102Y) XL 11.5 J x 19 H2 67 mm 59.7 in./1516 mm
Snow tiresfront 235/40 R 18 91V M+S 8 J x 18 H2 57 mm 58.5 in./1486 mm
rear 265/40 R 18 97V M+S** 10 J x 18 H2 58 mm 60.4 in./1534 mm
orfront 235/35 R 19 87V M+S 8 J x 19 H2 57 mm 58.5 in./1486 mm
rear 295/30 R 19 100V XL M+S 11 J x 19 H2 67 mm 59.7 in./1516 mm
The load capacity coefficient (e.g. “91”) and maximum speed code letter (e.g. “Y”) are minimum requirements.
Snow chainsCan be mounted only on the rear wheels; maximum speed 30 mph (50 km/h).
Use only Porsche authorized fine-link cross-type or edge chains.
Snow chain clearance can be guaranteed only on the tire + rim combination marked** without spacers.
Tire and rim sizesExtensive tests are performed before specific tires and wheels are approved by Porsche. Your Porsche dealer has informa-
tion about approved tires and wheels and is happy to assist you.
If aftermarket tires and/or wheels are installed which are not approved by Porsche, the vehicle’s roadability and handling
characteristics might be impaired. Since Porsche has no data on such combinations, Porsche cannot stand behind the safe-
ty or durability of these aftermarket combinations.
* 911 Carrera S: Summer tires 19-inch only
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Technical Data
289
Tires, Rims, Tracks 911 Carrera 4, 911 Carrera 4S
Tire Rim Rim offset Track
Summer tires* front 235/40 ZR 18 (91Y) 8 J x 18 H2 57 mm 58.6 in./1488 mm
rear 295/35 ZR 18 (99Y) 11 J x 18 H2 51 mm 60.9 in./1548 mm
or front 235/35 ZR 19 (87Y) 8 J x 19 H2 57 mm 58.6 in./1488 mm
rear 305/30 ZR 19 (102Y) XL 11 J x 19 H2 51 mm 60.9 in./1548 mm
or front 235/35 ZR 19 (87Y) 8.5 J x 19 H2 55 mm 58.7 in./1492 mm
rear 305/30 ZR 19 (102Y) XL 11.5 J x 19 H2** 67 mm 61.0 in./1550 mm
Snow tires front 235/40 R 18 91V M+S 8 J x 18 H2 57 mm 58.6 in./1488 mm
rear 295/35 R 18 99V M+S*** 11 J x 18 H2 51 mm 60.9 in./1548 mm
or front 235/35 R 19 87V M+S 8 J x 19 H2 57 mm 58.6 in./1488 mm
rear 295/30 R 19 100V XL M+S*** 11 J x 19 H2 51 mm 60.9 in./1548 mm
The load capacity coefficient (e.g. “91”) and maximum speed code letter (e.g. “Y”) are minimum requirements.
Snow chains Can be mounted only on the rear wheels; maximum speed 30 mph (50 km/h).
Use only Porsche authorized fine-l ink cross-type or edge chains.
Snow chain clearance can be guaranteed on ly on the tire + rim combination marked***.
Tire and rim sizes Extensive tests are performed before specific tires and wheels are approved by Porsche. Your Porsche dealer has information
about approved tires and wheels and is happy to assist you.
If aftermarket tires and/or wheels are in stalled which are not approved by Porsche, the vehicle’s roadability and handling cha-
racteristics might be impaired. Since Porsche has no data on such combinations, Porsche cannot stand behind the safety or
durability of these af termarket combinations.
* 911 Carrera 4S: Summer tires 19-inch only ** Only approved together with 17 mm spacers
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290
Technical Data
Tire Pressures for cold tiresSummer and snow tires 911 Carrera, 911 Carrera S
Summer and snow tires 911 Carrera 4, 911 Carrera 4S
These tire filling pressures apply only to the tire makes and types approved by Porsche.
Please observe the chapter “TIRES/WHEELS” on Page 229. Please observe the chapter “TPC TIRE PRESSURE MONITORING” on Page 109.
Danger!
Installation of sizes not authorized by
Porsche may have a dangerous effect on
the driving stability and could result in
severe personal injury or death.
fBefore mounting new tires, check with your Porsche dealer about the current release status.
18 inch wheels front 36 psi (2.5 bar)
rear 44 psi (3.0 bar)
19 inch wheels, partially loaded front 33 psi (2.3 bar)
(up to 2 persons without luggage) rear 39 psi (2.7 bar)
19 inch wheels, fully loaded front 36 psi (2.5 bar)
(as of 2 persons with luggage) rear 44 psi (3.0 bar)
18 inch and 19 inch wheels, partially loaded front 33 psi (2.3 bar)
(up to 2 persons without luggage) rear 39 psi (2.7 bar)
18 inch and 19 inch wheels, fully loaded front 36 psi (2.5 bar)
(as of 2 persons with luggage) rear 44 psi (3.0 bar)
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292
Technical Data
Weights Coupé911 Carrera Manual transmission Tiptronic S
Empty weight (depending on equipment)1395 kg to 1495 kg 1435 kg to 1535 kg
3075 lbs. to 3296 lbs. 3164 lbs. to 3384 lbs.
Maximum gross weight 3990 lbs./1810 kg 4090 lbs./1855 kg
Maximum axle load, front* 1709 lbs./775 kg 1709 lbs./775 kg
Maximum axle load, rear* 2601 lbs./1180 kg 2601 lbs./1180 kg
Maximum useful load, Roof Transport System** 165 lbs./75 kg 165 lbs./75 kg
911 Carrera S Manual transmission Tiptronic S
Empty weight (depending on equipment)1420 kg to 1510 kg 1460 kg to 1550 kg
3131 lbs. to 3329 lbs. 3219 lbs. to 3417 lbs.
Maximum gross weight 4012 lbs./1820 kg 4112 lbs./1865 kg
Maximum axle load, front* 1709 lbs./775 kg 1709 lbs./775 kg
Maximum axle load, rear* 2601 lbs./1180 kg 2601 lbs./1180 kg
Maximum useful load, Roof Transport System** 165 lbs./75 kg 165 lbs./75 kg
* The maximum gross weight must not be exceeded.
Note: If additional accessories are installed, the useful load will be correspondingly less.
** Use only Original Porsche Roof Transport System.
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Technical Data
293
Weights Coupé911 Carrera 4 Manual transmission Tiptronic S
Empty weight (depending on equipment) 1450 kg to 1550 kg 1490 kg to 1590 kg
3197 lbs. to 3417 lbs.3285 lbs. to 3505 lbs.
Maximum gross weight 4112 lbs./1865 kg 4211 lbs./1910 kg
Maximum axle load, front* 1819 lbs./825 kg 1819 lbs./825 kg
Maximum axle load, rear* 2690 lbs./1220 kg 2690 lbs./1220 kg
Maximum useful load, Roof Transport System** 165 lbs./75 kg 165 lbs./75 kg
911 Carrera 4S Manual transmission Tiptronic S
Empty weight (depending on equipment) 1475 kg to 1565 kg 1515 kg to 1605 kg
3252 lbs. to 3450 lbs.3340 lbs. to 3538 lbs.
Maximum gross weight 4134 lbs./1875 kg 4233 lbs./1920 kg
Maximum axle load, front* 1819 lbs./825 kg 1819 lbs./825 kg
Maximum axle load, rear* 2690 lbs./1220 kg 2690 lbs./1220 kg
Maximum useful load, Roof Transport System** 165 lbs./75 kg 165 lbs./75 kg
* The maximum gross weight must not be exceeded.
Note: If additional accessories are installed, the useful load will be correspondingly less.
** Use only Original Porsche Roof Transport System.
Page 294 of 308
294
Technical Data
Weights Cabriolet911 Carrera Manual transmission Tiptronic S
Empty weight (depending on equipment)1480 kg to 1560 kg 1520 kg to 1600 kg
3263 lbs. to 3439 lbs. 3351 lbs. to 3527 lbs.
Maximum gross weight 4134 lbs./1875 kg 4233 lbs./1920 kg
Maximum axle load, front* 1709 lbs./775 kg 1709 lbs./775 kg
Maximum axle load, rear* 2690 lbs./1220 kg 2690 lbs./1220 kg
911 Carrera S Manual transmission Tiptronic S
Empty weight (depending on equipment)1505 kg to 1575 kg 1545 kg to 1615 kg
3318 lbs. to 3472 lbs. 3406 lbs. to 3560 lbs.
Maximum gross weight 4156 lbs./1885 kg 4255 lbs./1930 kg
Maximum axle load, front* 1709 lbs./775 kg 1709 lbs./775 kg
Maximum axle load, rear* 2690 lbs./1220 kg 2690 lbs./1220 kg
* The maximum gross weight must not be exceeded.
Note: If additional accessories are installed, the useful load will be correspondingly less.