2003 Porsche 911 Porsche 911 2003

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2003 Porsche 911 repairs by problem area

Engine (40%)

Transmission and Drivetrain (9%)

Brakes and Traction Control (2%)

Suspension and Steering (7%)

Electrical and Air Conditioning (25%)

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

Other (7%)

Chart based on 57 repairs.
See TSBs and recalls for the 2003 Porsche 911.

2003 Porsche 911 repair cost distribution

$2500+ (12%)

$1000 - $2499 (24%)

$500 - $999 (4%)

$100 - $499 (38%)

< $100 (22%)

Worried about potential repair costs? An extended warranty can provide peace of mind.

Chart based on 50 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2003 Porsche 911

Engine not specified

Porsche 911 in Tokyo-Nerima, Japan
Apr 2014 - Apr 2014
Apr 2014

37820 mi

$2200
Water Pump Leak 

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2003 Porsche 911 2dr Coupe

turbocharged 450hp 3.6L H6 6-speed manual AWD

Porsche 911 in Nevada, United States
- Apr 2011
Jan 2007

16046 mi
Replace Trim, Glass mouldings. 
Feb 2007

16446 mi
Replaced Front Right Wheel bearing 
Jun 2007

18712 mi

US $210
Replaced Coolant Hose and Clamp Replaced Defective Oil Pressure Sensor 
Jan 2008

23526 mi

US $50
Replaced complete spoiler drive assmb with pump. 
May 2008

26150 mi

US $143
Replaced plastic Wheel Housing 
Jun 2008

27240 mi

US $62
Replaced Clutch Slave Cylinder and Power Steering reservoir. 
Sep 2008

31701 mi

US $212
Sunroof cassette Assembly found to be cracked. Advised to replace 
Mar 2009

36698 mi

US $1380
Replaced Front brakes (rotors, pads, and fluid) 
Jul 2010

42100 mi

US $5815
R&R Transmission to install new clucth (Upgraded to Sachs motorsports pressure plate, GT2 clutch disc, new throw-out bearing, bolts, and clutch fork. 
Porsche 911 in Florida, United States
- Mar 2011
Mar 2011

US $400
Fixed electric window regulator on drover side window 
Porsche 911 in Massachusetts, United States
Nov 2013 - Jun 2016
Mar 2014

47000 mi

US $1200
Emissions had an issue with the secondary air system which was malfunctioning. A solenoid needed cleaning and all seems well. Passed emissions testing for the state. 

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2003 Porsche 911 2dr Coupe

turbocharged 415hp 3.6L H6 6-speed manual AWD

Porsche 911 in Connecticut, United States
Sep 2013 - Apr 2016
Apr 2016

81000 mi

US $2800
replaced accumulator for hydraulic clutch 

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2003 Porsche 911 2dr Coupe

345-horsepower 3.6L H6 6-speed manual RWD

Porsche 911 in South Carolina, United States
Sep 2010 - Mar 2014
May 2010

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 
Jan 2014

102000 mi

US $1047
AOS Fail(broken inlet) 
Porsche 911 in Georgia, United States
Apr 2014 - Jun 2018
Oct 2015

48000 mi

US $300
Replaced motor mounts 

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2003 Porsche 911 2dr Coupe

345-horsepower 3.6L H6 6-speed manual AWD

Porsche 911 in Ontario, Canada
Sep 2006 - Nov 2014
Oct 2006

30380 mi
Rear main seal leak. Replaced seal. 
May 2010

57040 mi

C $3400
pressure plate broke at 180 km/h on upshift at the track. New clutch kit installed. Used the opportunity to upgrade IMS bearing to hybrid ceramic bearing from LN Engineering. Performed 96,000km major service + replaced 6 cracked coils. 
Jun 2011

62992 mi

C $15000
scored cylinder #6, motor not repairable. Engine replaced with upgraded x51 motor. 

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2003 Porsche 911 2dr Coupe

315-horsepower 3.6L H6 6-speed manual RWD

Porsche 911 in California, United States
Nov 2014 - May 2015
Nov 2014

41000 mi

US $1600
inoperable seat motor and window regulator. both were replaced 
Apr 2015

44000 mi

US $850
Had motor mounts replaced. One was starting to sag. Normal for a 12 year old car. 
Porsche 911 in Nevada, United States
Nov 2016 - Jun 2018
Jun 2017

52000 mi

US $2000
Had PO344 OBDII code related to cam timing problem. Found engine out of time due to tensioner failure on bank 1. Replaced all 3 chain tensioners. While engine out replaced air/oil separator, oil cooler seals, dual mass flywheel, clutch and catalytic converters that were rattling due to loose guts. 
Mar 2018

55000 mi

US $15000
Engine developed bearing knocks. Engine replaced with factory short block assembly. 
Porsche 911 in California, United States
Oct 2016 - Jun 2018
Nov 2016

63300 mi

US $150
Car was struggling to start at times. Replaced with new battery which fixed the issue. 
Jan 2017

64000 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. 
Mar 2017

65000 mi

US $22
Received check engine light for cylinder 1 misfire. Replaced all spark plugs which resolved the issue. 
Apr 2017

64000 mi

US $130
Windshield trim dried out and started flapping when on the highway. Replaced both inner and outer rubber trim which resolved issue. 
Mar 2018

68700 mi

US $435
The left side catalytic converting was making a tapping/ticking noise. Cat needed to be replaced. 

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2003 Porsche 911 2dr Coupe

315-horsepower 3.6L H6 6-speed manual AWD

Porsche 911 in New Jersey, United States
- Jun 2011
Apr 2011

91204 mi
Clutch switch repair. 
Jun 2011

92500 mi
Replace both front trailing arms and left lower control arm. Perform alignment. 
Porsche 911 in Illinois, United States
Mar 2015 - Apr 2018
Aug 2015

85100 mi
Battery Charge Test. Alternator replacement. Engine mount replacement because I noticed the driver side tail pipe sagging lower then the passenger side. Front Diff Side Seals (L & R), Front Diff Side Seals, Gear Oil and Circlip. Front seals had a little leak. 
Nov 2015

87400 mi

US $345
Battery and Battery Tray Replacement. The tray had slight corrosion so I decided to replace it. 
Jul 2016

95000 mi

US $2233
Oil pressure warning light goes off. Replaced oil pressure sender and shield, $171. Power to cooling fans but fans are not working. Replaced both cooling fans, $1256. Coolant leaking from engine block cap. Replaced cap and coolant, $232. Driver side window off track. Repaired. Passenger side window will not lower when closing for slightly open/close operation. Replaced micro switch, $319 including other window repair. 
Apr 2017

991000 mi

US $139
Replaced main headlight switch. 
Jan 2018

102000 mi

US $1100
Replaced starter along with the Battery/Starter/Alternator wiring harness. 
Porsche 911 in Minnesota, United States
Sep 2013 - Jun 2018
Sep 2015

41000 mi

US $500
ignition switch and steering column lock replaced 
Porsche 911 in Quebec, Canada
Sep 2013 - Jun 2015
Jun 2014

58280 mi

C $350
XENON LIGHT POWER MODULE 
Jul 2014

58900 mi

C $2000
Shocks changed at 89,000 km. Front discs 

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2003 Porsche 911 2dr Convertible

345-horsepower 3.6L H6 6-speed manual RWD

Porsche 911 in Ontario, Canada
Sep 2013 - Dec 2017
Nov 2013

26440 mi

C $350
Replace struts holding trunk and engine cover 
Jul 2014

28000 mi

C $175
New battery and installation 
Oct 2015

29860 mi

C $250
Replace struts for hood and engine cover 
Nov 2016

31820 mi

C $2300
replacement of cracked coils on each of 6 cylinders 
Porsche 911 in Oklahoma, United States
Sep 2013 - Apr 2017
Feb 2014

71000 mi

US $1750
Clutch replaced after throw-out bearing failed. Clutch still had some left after 72,000 miles, but would have needed replacing within a year. Also had the clutch helper spring replaced....much easier pedal action now. 
Aug 2016

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 6-speed manual RWD

Porsche 911 in Minnesota, United States
Jan 2016 - Dec 2017
Dec 2017

100000 mi

US $4500
Broken valve spring Clutch IMS bearing 
Porsche 911 in Iowa, United States
Jul 2014 - Mar 2018
Oct 2014

27225 mi

US $30
Replaced engine hood support cylinder. 

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2003 Porsche 911 2dr Convertible

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

Porsche 911 in Alabama, United States
Sep 2013 - Mar 2014
Sep 2013

33000 mi

US $289
MAF sensor went defective 
Oct 2013

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

Porsche 911 in New Zealand
Sep 2013 - Jun 2014
May 2014

47320 mi

$300
Voltage regulator failed 

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See TrueDelta's information for all Coupes and Convertibles.
See TrueDelta's information for all Porsche models.

2003 Porsche 911 Repair Histories

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 2003 Porsche 911 problems occur, check out our car reliability stats.