1999 Porsche 911 Porsche 911 1999

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1999 Porsche 911 repairs by problem area

Engine (50%)

Transmission and Drivetrain (3%)

Brakes and Traction Control (0%)

Suspension and Steering (9%)

Electrical and Air Conditioning (18%)

Paint, Rust, Leaks, Rattles, and Trim (15%)

Other (6%)

Chart based on 34 repairs.
See TSBs and recalls for the 1999 Porsche 911.

1999 Porsche 911 repair cost distribution

$2500+ (3%)

$1000 - $2499 (12%)

$500 - $999 (30%)

$100 - $499 (45%)

< $100 (9%)

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

Chart based on 33 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

1999 Porsche 911

Engine not specified

Porsche in Washington, United States
Jan 2013 - Oct 2013
May 2013

149000 mi

US $130
Front left wheel assy: Lower rear main control arm stud sheared off and caused the wheel assy to nearly go under car, Lucky I was in the driveway. Self repair :Rockauto Euro mfg part. This could have been a very dangerous problem at speed, 
Jun 2013

149000 mi

US $125
Window lost track in motion due to main window seal 'felt wiper face' had deteriorated causing drag & light binding of window thus coming out of natural path, binding and stuck. Replace main window seal set. 
Oct 2013

149000 mi

US $650
I replaced the clutch assemble and rear engine seal myself and it works perfect. OEM Sachs parts and OEM rear Crank Seal, now a pro at 996 tranny removal and replacement. 
Porsche in Nevada, United States
Dec 2012 - Oct 2014
Feb 2013

19200 mi

US $560
passenger window regulator needed replacing 
Nov 2013

21600 mi

US $220
ECU threw P1123. Excess fuel at idle and lean at WOT. Took it to a shop. They were unable to diagnose the root problem and didn't want to charge me to replace working parts. Code cleared and I am monitoring until more symptoms arise. 
Oct 2014

26000 mi

US $800
MAF sensor had to be replaced; ECU had to be reprogrammed 
Porsche in California, United States
Aug 2012 - Jun 2014
Nov 2012

52000 mi

US $500
Driver-side window regulator needed replacement. 
Porsche in Ontario, Canada
Feb 2013 - Sep 2013
May 2013

48100 mi

C $250
Replaced engine mounts to reduce cabin vibration and improve shifting. 
Porsche in Mississippi, United States
Mar 2013 - Sep 2013
Sep 2013

55000 mi

US $1300
Rattling from lower left of engine. Failing water pump bearing. Replaced pump and since they were in the neighborhood, the thermostat and serpentine belt as well. 
Porsche in Michigan, United States
Apr 2015 - Apr 2015
Apr 2015

137000 mi

US $4000
Cylinder head cracked, IMS Bearing Replaced, Clutch Replaced, Cooling System replaced, Ignition System Replaced 
Porsche in Illinois, United States
Jun 2013 - Nov 2014
Sep 2013

79000 mi

US $2000
Overheating; water pump was replaced. Alarm, central locking, rear defroster, dome light all non-functional. 
Oct 2014

86000 mi

US $600
Refinished wheels 
Porsche in Florida, United States
Sep 2015 - Mar 2016
Feb 2016

37000 mi

US $600
Wheel bearing 
Porsche in Florida, United States
Jun 2011 - Jun 2012
Aug 2011

67600 mi

US $800
Convertable roof hydraulic leak 
Porsche in British Columbia, Canada
Sep 2010 - Jun 2011
Nov 2010

83700 mi

C $230
water pump noisy bearings 
Dec 2010

86180 mi

C $100
Rear drop links replaced, noise gone. 
Porsche in Kansas, United States
Sep 2010 - Apr 2011
Apr 2011

62000 mi
One of the Cam Tower covers was leaking when I sold it. 

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1999 Porsche 911 2-door

6-cylinder manual 2WD

Porsche in California, United States
Sep 2010 - Jun 2014
Oct 2010

60000 mi

US $300
Check valve for air injection system failed. Typical problem on 99's 
Porsche in Maine, United States
Sep 2010 - Jun 2014
Oct 2010

53000 mi

US $260
Had a leaking coolant tank and finally decided to replace it and the coolant cap with new parts. 
Porsche in Delaware, United States
Sep 2010 - Jun 2014
Oct 2010

54000 mi

US $200
Air Oil Separator Replaced 
Dec 2011

61000 mi

US $100
Repair serpentine belt pulley 
Porsche in Great Britain
Sep 2010 - Jun 2013
Nov 2010

69300 mi

£200
Coolant reservoir developed a slow leak & was replaced by the owner. 
Mar 2011

71000 mi

£300
1 coil pack failed. Replaced all 6 
Mar 2012

82000 mi

£950
Radiator leak due to corrosion. 
Porsche in Tennessee, United States
Mar 2011 - Apr 2012
Apr 2012

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. 
Porsche in Connecticut, United States
Sep 2010 - Jun 2022
Jul 2012

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. 
Feb 2014

59200 mi

US $120
Replaced battery. 
Aug 2017

68000 mi

US $320
Align sunroof, refinish curb rashed wheel. Other minor fixes. 
Jun 2021

79000 mi

US $1000
Sunroof 
Porsche in New Jersey, United States
Oct 2012 - Mar 2019
Oct 2012

44000 mi

US $500
Coolant expansion tank crack which was explained to be a typical problem for this car, but not a major repair 
Porsche in California, United States
Sep 2010 - Mar 2013
Apr 2011

65200 mi

US $321
Shifter popping out of second gear when cold. The final fix to this problem was to replace the Porsche 2nd gear "detent" with a custom GBox upgraded detent from a company in Colorado, sold on eBay. 
Dec 2011

66000 mi

US $768
Convertible top would not open/close. Problem due to one of the electric motors that lowers a protective flap (on passenger side). 

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1999 Porsche 911 2-door

4-cylinder manual 2WD

Porsche in Oklahoma, United States
Nov 2010 - Dec 2012
Mar 2011

74000 mi

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

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1999 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 1999 Porsche 911 problems occur, check out our car reliability stats.