Porsche 911 Porsche 911

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Porsche 911 repairs by problem area

Engine (40%)

Transmission and Drivetrain (9%)

Brakes and Traction Control (2%)

Suspension and Steering (8%)

Electrical and Air Conditioning (25%)

Paint, Rust, Leaks, Rattles, and Trim (11%)

Other (6%)

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Chart based on 613 repairs.
See TSBs and recalls for the Porsche 911.

Porsche 911 electrical repair cost distribution

$2500+ (1%)

$1000 - $2499 (19%)

$500 - $999 (13%)

$100 - $499 (41%)

< $100 (26%)

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Chart based on 137 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2017 Porsche 911 2dr Coupe

turbocharged 370hp 3.0L H6 7-speed manual RWD

8000 mi Intermittently backup camera will not turn on when car is put in reverse. Dealer was unable to duplicate. 

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2015 Porsche 911 2dr Coupe

475-horsepower 3.8L H6 7-speed automated manual RWD

13500 mi Speakers blown 

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2014 Porsche 911 2dr Convertible

350-horsepower 3.4L H6 7-speed automated manual RWD

47000 mi

US $900
Replace old battery 

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2012 Porsche 911 2dr Coupe

408-horsepower 3.8L H6 7-speed automated manual RWD

15500 mi Replaced amplifier and one rear speaker. 

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2012 Porsche 911 2dr Coupe

385-horsepower 3.8L H6 7-speed automated manual RWD

27000 mi

US $600
Wiring harness replaced. 

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2012 Porsche 911 2dr Convertible

345-horsepower 3.6L H6 7-speed automated manual RWD

35765 mi

US $350
Replaced Battery 

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2011 Porsche 911 2dr Coupe

408-horsepower 3.8L H6 7-speed automated manual RWD

36500 mi

US $450
Window regulator swapped for new OEM equipment 

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2011 Porsche 911 2dr Coupe

385-horsepower 3.8L H6 6-speed manual RWD

18777 mi TPS replaced in driver's side front wheel - it was not sending tire pressure reading. 

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2011 Porsche 911 2dr Convertible

385-horsepower 3.8L H6 7-speed automated manual RWD

47000 mi

US $900
TPS all four wheels 

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2010 Porsche 911 2dr Coupe

345-horsepower 3.6L H6 7-speed automated manual RWD

30000 mi

US $166
Run codes for check engine light. Dealer cannot get code. Reset computer only. 

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2009 Porsche 911 2dr Coupe

385-horsepower 3.8L H6 7-speed automated manual RWD

53100 mi

US $478
New battery and reset codes.  
58590 mi battery replaced under warranty 
30000 mi

US $220
Windshield washer pump needed replacement 
31000 mi

US $235
Battery needed replacement. Last one was replaced in May 2013. 

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2009 Porsche 911 2dr Coupe

385-horsepower 3.8L H6 6-speed manual RWD

17000 mi Window motor sensor was intermittent. Replaced window motor. 

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2009 Porsche 911 2dr Coupe

345-horsepower 3.6L H6 7-speed automated manual RWD

104000 mi

US $1250
PCM went into a constant reboot cycle. Had to remove the unit, ship it to an independent repair shop and have it recoded at the dealership when it was returned 

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2009 Porsche 911 2dr Coupe

345-horsepower 3.6L H6 6-speed manual RWD

58000 mi

US $270
A/C service; 1.68 lbs R-134A added 

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2009 Porsche 911 2dr Convertible

385-horsepower 3.8L H6 6-speed manual AWD

25900 mi Battery would not hold charge 

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2007 Porsche 911 2dr Coupe

turbocharged 480hp 3.6L H6 6-speed manual AWD

17000 mi TMPS sensors 

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2007 Porsche 911 2dr Coupe

turbocharged 480hp 3.6L H6 5-speed shiftable automatic AWD

74400 mi

$50
Micro switch in brake pedal mechanism failed, was replaced. 

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2007 Porsche 911 2dr Coupe

355-horsepower 3.8L H6 6-speed manual RWD

33000 mi Replace TPMS sensor under warranty. 
33000 mi

US $250
Replaced tire pressure monitor sensors in three wheels (one was previously replaced, one was not working, and two were replaced as preventative). 
46000 mi

US $800
Re-set air bag sensor. 
41200 mi Speaker in driver's door panel rattling badly with bass. 
42000 mi speaker rattle 
42000 mi Driver's side door panel bass speaker rattle. 
45000 mi

US $750
Replaced starter cable 

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2007 Porsche 911 2dr Coupe

325-horsepower 3.6L H6 6-speed manual RWD

12400 mi One of the horns was replaced under warranty. 
6000 mi Sticking window 
30300 mi

US $1000
replace Tire Pressure sensors/batteries 
4000 mi Battery died on its own. Replaced under warranty. 

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2007 Porsche 911 2dr Coupe

325-horsepower 3.6L H6 6-speed manual AWD

94860 mi

C $1800
Wiper motor Key fob 
74000 mi

US $250
Clutch position switch started to intermittently fail, causing the car to be difficult to start. Replaced switch fixed the starting problem. 

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2007 Porsche 911 2dr Coupe

325-horsepower 3.6L H6 5-speed shiftable automatic RWD

20000 mi Loud booming noise coming from left main speaker with radio off. When radio on, noticeable distortion and buzzing vibration. It was diagnosed by my Porsche service department as a faulty amplifier. A new one was ordered and replaced. 
82000 mi

US $1100
Power Window motor controller failed 

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2007 Porsche 911 2dr Convertible

381-horsepower 3.8L H6 6-speed manual RWD

65300 mi all four TPS sensors had to be replaced also under warranty. I replaced the tires and windshield 
68300 mi Rear LED third brake light developed a short in the light unit itself 
97000 mi

US $600
Passenger rear window would not go up. Passenger front window will auto down will not auto up 

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2007 Porsche 911 2dr Convertible

355-horsepower 3.8L H6 6-speed manual AWD

34000 mi

US $1750
The cable from battery to starter was corroded-a known problem that Porsche refuses to acknowledge. 
59000 mi

US $500
Door lock switch for window movement broken. Replaced drivers door lock assembly 
57000 mi

US $900
Replace opener switch for engine cover 

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2007 Porsche 911 2dr Convertible

325-horsepower 3.6L H6 6-speed manual RWD

23000 mi

US $311
replace TPMS 

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2007 Porsche 911 2dr Convertible

325-horsepower 3.6L H6 6-speed manual AWD

42100 mi

US $1000
left rear window controller nonfunctional Passenger seat motor failed. Replaced. 

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2006 Porsche 911 2dr Coupe

381-horsepower 3.8L H6 6-speed manual RWD

8000 mi CDs go in but don't come out. Nightmares over what this might cost to fix. So, in a $120K car, I carry a set of needle nose pliers with blue painter's tape wrapped on the ends to grab CDs when they come most of the way out before getting sucked back in. 

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2006 Porsche 911 2dr Coupe

355-horsepower 3.8L H6 6-speed manual RWD

113400 mi

US $150
Passenger door window regulator malfunction. 
115000 mi

US $22
Clutch pedal cruise control cancel switch. Causing cruise control to intermittently disengage. 
11500 mi Seat lumbar module failed 

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2006 Porsche 911 2dr Coupe

355-horsepower 3.8L H6 6-speed manual AWD

105000 mi

US $185
Drivers door locking mechanism faulty causing window and seat malfunction so 

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2006 Porsche 911 2dr Coupe

325-horsepower 3.6L H6 6-speed manual RWD

21000 mi PCM CD was not ejecting CD's, PCM replaced under CPO. 
51000 mi amplifier replaced 
54700 mi

US $1200
Battery cable replaced. 
53700 mi

US $800
Climate control display not working, replaced. 

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2006 Porsche 911 2dr Coupe

325-horsepower 3.6L H6 6-speed manual AWD

31180 mi Tire pressure monitoring system malfunctioning. Would reset itself every few days 

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2006 Porsche 911 2dr Convertible

381-horsepower 3.8L H6 5-speed shiftable automatic AWD

27000 mi One of the horns was not working, seems to be a model problem...horn was replaced 
28000 mi Brake light switch caused ABS and PSM display to come up on dash. 

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2006 Porsche 911 2dr Convertible

355-horsepower 3.8L H6 6-speed manual RWD

57000 mi

US $800
Starter not cranking when engine is warm, replace starter motor and cable from alternator to starter. 
34100 mi

C $400
replace battery. did not leave me stranded but tested it and it was very low. cruise control not working. reprogramed system and it was fine 

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2006 Porsche 911 2dr Convertible

325-horsepower 3.6L H6 6-speed manual RWD

37500 mi

US $100
Battery not charging b/c of degradation of the alternator-starter-battery cable. Cable is only about $100 but the repair took me 6 hours. Works perfectly now! 
53000 mi

US $150
Replaced battery 

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2005 Porsche 911 2dr Coupe

325-horsepower 3.6L H6 6-speed manual RWD

34749 mi

US $1263
Steering wheel module and new battery 

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2005 Porsche 911 2dr Coupe

325-horsepower 3.6L H6 5-speed shiftable automatic RWD

132000 mi

US $525
Headlight control unit erroneously giving fault for right high beam. Dealer swapped control units with similar vehicle and problem went away. New control unit ordered from Germany, replaced, and problem resolved 

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2005 Porsche 911 2dr Convertible

325-horsepower 3.6L H6 6-speed manual RWD

61000 mi Diagnosed a faulty front control module (common issue that occurs as results of waxing/rubbing around headlight area - static causes a short in the module). 

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2004 Porsche 911 2dr Coupe

turbocharged 450hp 3.6L H6 5-speed shiftable automatic AWD

94000 mi

US $3123
Passenger side window actuator failed, engine light on, ABS light on 
33000 mi Infotainment system constantly reboots every 5-10 minutes 
45000 mi

US $2190
Entire HVAC system failed. Had no A/C nor heat. Air flow fan speed also failed. 
57000 mi

US $1400
Window switch and regulator replacement 

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2004 Porsche 911 2dr Coupe

380-horsepower 3.6L H6 6-speed manual RWD

29200 mi

US $774
replaced alternator 

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2004 Porsche 911 2dr Convertible

turbocharged 415hp 3.6L H6 6-speed manual AWD

30000 mi

US $35
Replaced voltage regulator on the alternator 
43000 mi

US $200
Replaced rear driver side brake light socket and wiring harness. 

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2004 Porsche 911 2dr Convertible

320-horsepower 3.6L H6 6-speed manual RWD

61000 mi

US $50
Voltage regulator failure 
19000 mi

US $268
Ignition switch worn out and changed 
43000 mi

US $1200
Left rear window went down and would not come back up and then a grinding noise. Replaced window motor, cable and associated parts. 
47500 mi

US $1100
Right rear window went down and would not come back up 

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2003 Porsche 911 2dr Coupe

turbocharged 450hp 3.6L H6 6-speed manual AWD

23526 mi

US $50
Replaced complete spoiler drive assmb with pump. 

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2003 Porsche 911 2dr Coupe

345-horsepower 3.6L H6 6-speed manual RWD

72000 mi

US $250
Bose amplifer was drawing 3 amps after the car was shut off for 2 or 3 hours. Result dead battery. Replaced 

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2003 Porsche 911 2dr Coupe

315-horsepower 3.6L H6 6-speed manual RWD

63300 mi

US $150
Car was struggling to start at times. Replaced with new battery which fixed the issue. 
64200 mi

US $65
The window regulator on the passenger door was not dropping when opening the door and causing the door to be stuck shut. I was able to purchase a new window regular and swap it out. 
41000 mi

US $1600
inoperable seat motor and window regulator. both were replaced 

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2003 Porsche 911 2dr Coupe

315-horsepower 3.6L H6 6-speed manual AWD

58280 mi

C $350
XENON LIGHT POWER MODULE 
85100 mi Battery Charge Test. Alternator replacement. 
95000 mi

US $2233
Passenger side window will not lower when closing for slightly open/close operation. Replaced micro switch, $319 including other window repair. 
991000 mi

US $139
Replaced main headlight switch. 
102000 mi

US $1100
Replaced starter along with the Battery/Starter/Alternator wiring harness. 

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2003 Porsche 911 2dr Convertible

345-horsepower 3.6L H6 6-speed manual RWD

28000 mi

C $175
New battery and installation 
85000 mi

US $1100
Rear passenger window regulator failed. Was replaced with Porsche parts and now functions normally. 

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2003 Porsche 911 2dr Convertible

315-horsepower 3.6L H6 5-speed shiftable automatic RWD

33000 mi

US $361
Light switch went bad. Replaced it 

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2003 Porsche 911 2dr Convertible

315-horsepower 3.6L H6 5-speed shiftable automatic AWD

47320 mi

$300
Voltage regulator failed 

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2002 Porsche 911 2dr Coupe

turbocharged 450hp 3.6L H6 6-speed manual AWD

47000 mi

US $200
Porsche windows have sensors that raise the window 1/2 inch after door is closed to make a tight seal. Sensors go bad and window doesn't close tightly. Have to replace sensor. 

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2002 Porsche 911 2dr Coupe

turbocharged 415hp 3.6L H6 6-speed manual AWD

65000 mi

US $240
Driver front turn signal stopped working. Required wiring repair in the headlamp unit. 
79000 mi

US $247
1. Replaced headlight switch. Symptom was low beams would not turn on.  
34000 mi

US $300
Replaced window regulator 

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2002 Porsche 911 2dr Coupe

320-horsepower 3.6L H6 6-speed manual RWD

52000 mi Turn signal bulb holder no longer making contact with connector. Removed headlight assembly, removed turn signal bulb (in its holder), bent contacts inside headlight assembly to make contact. Works fine now. 
69000 mi

US $150
AC compressor clutch *fell off* and disappeared somewhere on the road. Quotes to repair included replacing compressor (with new OEM), including refrigerant handling and recharge, about $2000. Bought used compressor from local Porsche used parts specialist for $150, removed clutch from it, and installed on my compressor. 
81000 mi

US $300
Erratic locking system; alarm chirps; passenger window not dropping when closing door. Two problems: passenger door lock mechanism faulty and failing passenger window regulator. Solution: 1) install new passenger window regulator, 2) remove passenger door lock mechanism, resolder bad solder joints, reinstall 
71300 mi

US $152
Brake switch. $20 for part the rest for labor 
32000 mi

US $2500
steering lock assembly defective  window regulator defective 
56200 mi

US $110
Replace passenger window regulator 
107880 mi

C $200
turn signal would not self cancel one direction and would not lock in the other. bought replacement module, installed mdoule. problem solved. 
57900 mi

US $1750
Window regulator needed to be replaced. 
65000 mi

US $500
Replaced window regulator on passenger side. 
68200 mi

US $900
Passenger door was not recognizing if it was open or closed, locked or unlocked, so it would give a "double beep" while driving down the road to let me know the door was open. 
50000 mi

US $200
Driver side window regulator failure 
53900 mi

US $250
SRS system error - passenger seat belt error. 
56000 mi

US $1000
Replaced alternator 
57000 mi

US $900
Airbag light activated by seat belt sensor error. 
62000 mi

A $400
New ignition switch 
71300 mi

A $350
New Headlight Switch 
81000 mi

US $750
Window regulator not operating properly. Sometimes the driver's door would not open because the window would not come down. 
87000 mi

US $1100
battery wasn't staying charged, I got stranded twice. Put in a rebuilt Bosch Alternator and they gave me a new interstate battery no-charge because it was still under warranty. 
87000 mi

US $900
car was starting when cold but would struggle if warm. Was starting hard all the time. Thought it was alternator and battery last time but it ended up being the starter motor. Starts up like it's brand new now. 
57500 mi

US $175
replaces Clock spring for airbag 
88000 mi Passenger window auto lower/raise sometimes doesn't work right with door open/close, and door lock button is sometimes lit erroneously, two are related. Also, cigarette lighter outlet often seems not to be powered. 

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2002 Porsche 911 2dr Coupe

320-horsepower 3.6L H6 6-speed manual AWD

52700 mi

C $50
Window regulator 
72000 mi

US $290
Groaning noise when AC was on. Turned out to be one of the pulleys/ Replaced the belt while we were in there (did not include cost of belt) 
71500 mi

US $300
Window stopped dropping correctly when door handle was opened and when window switch was selected. Replaced window regulator. Fixed part of issue. Then replaced door latch which corrected the rest. 
96000 mi

US $1891
windshield washer pump and switch assembly were replaced to fix intermittent problem, 467.01 
102000 mi

US $1914
unable to switch between trip meter, mpg, temperature, etc. multifunction display column switch assembly was replaced, 406.07 
70060 mi

C $990
Alternator failure, replaced the defective unit with a non-rebuilt, brand new one. 
72220 mi

C $200
Driver side window wouldn't drop down 1/4" while opening and closing the door. Needed a new door latch. 
72540 mi Driver side window needed a new regulator. Dealer quoted $960 another mechanic $250 for the job but I sold it without repairing it. 
72000 mi

£150
Alternator clutch pulley faulty, but replaced whole alternator with a Bosch fully reconditioned unit with new clutch pulley fitted, as i got a very good price. 

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2002 Porsche 911 2dr Coupe

320-horsepower 3.6L H6 5-speed shiftable automatic RWD

34720 mi Trunk and engine compartment release button works intermittently, so dismantled switch and cleaned contacts. Now works perfectly. 
62620 mi Car's been problem free for past 3 years! The buttons for the hood & boot release works intermittently, so took out and clean contacts but no improvements. So have to depend on manual cable release sometimes, will see whether replacing the switches can solve the problem. 

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2002 Porsche 911 2dr Convertible

320-horsepower 3.6L H6 6-speed manual RWD

40000 mi

US $1140
Replaced battery which was about one year old with a new battery because existing battery would not hold charge more than 24 hours. New battery continued to loose charge and was replaced under warranty when new alternator installed. 
41900 mi

US $195
Chronic loss of battery power if the car not used for 24 - 36 hours. The problem was determined to be caused by an after market radio drawing an excess of energy even with the car turned of and the alarm set. Fuse D8 removal solves issue. 
54000 mi

US $1000
Missing ground to license plate lighting, multiple lights bulbs replaced. 
123000 mi

US $240
Window would dip when latch was pulled. As soon as you released the latch the window would go back up. Should of stayed down till the door was closed. Had to replace driver side door latch 
124000 mi

US $165
red light came on and the volt meter started dropping. Made it home and parked it. Called around and found an alternator for about $144 with core exchange. 

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2001.5 Porsche 911 2dr Coupe

320-horsepower 3.6L H6 6-speed manual RWD

78120 mi

€200
cruise control (electrical short circuit) 

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2001 Porsche 911

Engine not specified

72000 mi

US $1500
replaced immobilizer and 2 key heads 

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2001 Porsche 911 2dr Coupe

turbocharged 415hp 3.6L H6 5-speed shiftable automatic AWD

45000 mi

US $50
The engine to chassis ground cable became worn and loose. A new one was replaced. 

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2001 Porsche 911 2dr Coupe

300-horsepower 3.4L H6 6-speed manual AWD

60000 mi

US $200
speaker in door had loose screw mounts 
64000 mi

US $470
Headlight switch replaced 

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2001 Porsche 911 2dr Coupe

300-horsepower 3.4L H6 5-speed shiftable automatic RWD

27280 mi

A $250
Driver's door lock replaced 

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2001 Porsche 911 2dr Convertible

300-horsepower 3.4L H6 6-speed manual AWD

98000 mi

US $200
I replaced battery 
98500 mi

US $163
I replaced the battery myself. 

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2001 Porsche 911 2dr Convertible

300-horsepower 3.4L H6 5-speed shiftable automatic RWD

82300 mi

US $450
Front Left Xenon Bulb replaced. 
88000 mi LEFT REAR ELECTRICAL WIRES for the REAR LEFT LIGHT 
107300 mi

US $75
Constant locking system alarm. Probably door handle switch. 

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2001 Porsche 911 2dr Convertible

300-horsepower 3.4L H6 5-speed shiftable automatic AWD

58000 mi

US $575
Alarm CPU under drivers seat got wet 

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2000 Porsche 911 2dr Coupe

300-horsepower 3.4L H6 6-speed manual RWD

91760 mi

C $400
Passenger door window regulator replaced. 
94240 mi

C $300
AC was Hot. Tested for leaks and recharged with R134A. 

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1999 Porsche 911

Engine not specified

19200 mi

US $560
passenger window regulator needed replacing 
79000 mi

US $2000
Alarm, central locking, rear defroster, dome light all non-functional. 

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1999 Porsche 911 2-door

6-cylinder manual 2WD

54200 mi Engine was slow cranking even with charged battery. Cleaned all pos and neg battery terminals. Removed TB to get at starter terminals for cleaning. 
59200 mi

US $120
Replaced battery. 
90000 mi Electric lock mechanism in driver's side door malfunction, preventing lock from operating, preventing alarm system from arming. Motor needed to be disassembled and lubricated. 

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1999 Porsche 911 2-door

4-cylinder manual 2WD

74000 mi

US $2000
ac compressor out and replace with dryer front brake rotors replace. 

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Porsche 911 Electrical Problems

See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently Porsche 911 problems occur, check out our car reliability stats.