1999 Porsche Boxster Porsche Boxster 1999

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1999 Porsche Boxster repairs by problem area

Engine (52%)

Transmission and Drivetrain (1%)

Brakes and Traction Control (0%)

Suspension and Steering (4%)

Electrical and Air Conditioning (25%)

Paint, Rust, Leaks, Rattles, and Trim (13%)

Other (5%)

Chart based on 103 repairs.
See TSBs and recalls for the 1999 Porsche Boxster.

1999 Porsche Boxster repair cost distribution

$2500+ (8%)

$1000 - $2499 (8%)

$500 - $999 (15%)

$100 - $499 (42%)

< $100 (27%)

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

Chart based on 92 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

1999 Porsche Boxster

Engine not specified

Porsche in California, United States
Jun 2010 - Jun 2011
Jul 2010

14000 mi

US $9500
Catastrophic engine failure at 14,011 miles. Internal engine problem called a 'slipped sleeve' caused piston/cylinder #3 to destruct. Appears to be a manufacturing defect but no assistance from Porsche. 
Porsche in California, United States
May 2009 - Mar 2010
Jun 2009

103000 mi

US $8459
Blown motor. Factory defect. Slipped cylinder sleave. 
Porsche in California, United States
Mar 2011 - Apr 2014
Sep 2011

63000 mi

US $85
Replaced ignition system. Key functioned by electrical connects were not being made. 
Oct 2011

64000 mi
Replaced missing or broken cosmetic items, cover on the vanity mirror on passenger side visor, cap on mounting bolt over passenger side windshield wiper. Cap probably came off on own as not very secure. Modified new one for tighter fit. 
Apr 2014

78000 mi

US $350
Air Oil Separator, along with a full clean of the throttle body and intake system. When AOS failed, sucked oil into the system Driving the car after replacing the AOS, I noticed steam and a leak from the cooling system at the front of the engine. Subsequent testing showed a failed water pump. Most likely due to a heating issue when the AOS failed. 
Porsche in British Columbia, Canada
Jun 2010 - Jun 2011
Jul 2010

65100 mi

C $10000
Engine cylinder cracked. Common for boxsters. Dont ever buy this car, they are unreliable. 
Porsche in Louisiana, United States
Feb 2012 - Jun 2018
Mar 2012

58000 mi

US $25
Rear trunk lift pistons no longer supported the hood weight, simply bought new ones from Rock Auto and replaced them ...took about 10 minutes. 
Apr 2012

58200 mi

US $95
got intermittent Check Engine light - codes said it was O2 sensor in bank 2 (driver side) #1 (upstream of catalytic converter). ordered OE part from Rockauto and changed it myself ...easy ...solved problem -- passed inspection. 
Jun 2012

59000 mi

US $35
The clutch starter switch was causing intermittent starting problems. Replaced switch located under steering column - 5 minutes job - solved the problem 
Nov 2012

60000 mi

US $168
passenger side rear view mirror not moving in or out remotely. 
Apr 2014

62200 mi

US $439
Air bag light on ...required to change driver side seat belt 
Porsche in California, United States
Sep 2013 - Jun 2014
Oct 2013

61200 mi

US $5900
Clutch , flywheel, ims bearing retrofit, water pump horn 
Porsche in Illinois, United States
Mar 2012 - Jun 2013
Nov 2012

70900 mi

US $1000
Coolant leak. Replaced coolant tank and cap. 
Feb 2013

73000 mi

US $100
Check engine light. Vacuum line vibrating against engine. Cut and rerouted . Sensors checked. 
Porsche in Ontario, Canada
Jul 2013 - Jul 2014
Jun 2014

60140 mi

C $250
Some lines were leaking oil, simply old age. 
Jul 2014

60140 mi

C $400
Some fluid had been leaking under the car. Spark plug suppressor tubes were leaking and cam adjuster solenoid needed re-sealing. Required 6 new suppressor tubes with O-rings and 6 new spark plugs. 

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1999 Porsche Boxster 2-door

6-cylinder manual 2WD

Porsche in Oregon, United States
Oct 2009 - Mar 2010
Dec 2009

129000 mi

US $350
Owner replaced water pump/thermostat and all coolant. 
Porsche in California, United States
Jan 2011 - Sep 2011
Feb 2011

89000 mi

US $45
Ignition switch replaced. 
Apr 2011

90000 mi

US $950
Front engine mount failed. Rubber insert cracked. Replaced with factory new mount. 
Porsche in Oklahoma, United States
Oct 2010 - May 2012
Nov 2010

70000 mi

US $230
The trunk struts for the rear trunk could no longer hold up the trunk so i had them replaced under the Porsche certified preowned program. 
May 2012

89000 mi
When sold to a dealer the Boxster had A LOT of repairs coming its way...needed gaskets, engine overhaul... needed shocks needed seat shocks 
Porsche in Alabama, United States
Jul 2011 - Nov 2012
Sep 2011

67000 mi

US $33
Fuel door lock actuator inop. Removed/replaced actuator. 
Feb 2012

70700 mi

US $87
Replaced failed check valve 993-113-250-03, a one way valve in the emissions related Secondary Air Injection system. 
May 2012

74300 mi

US $80
Faulty fuel tank vent line to throttle body (part number 996-110-129-06) causing air leak in intake system setting DTCs P1124 and P1126. 
Porsche in Colorado, United States
Jun 2013 - Sep 2013
Jul 2013

31700 mi

US $240
Replaced fuel exhaust vent valve because dealer broke it and did not mention it after they tried to hide it. 
Porsche in California, United States
Aug 2011 - Jun 2018
Mar 2012

56000 mi

US $1400
Rear plastic window developed major cracks. Replaced with glass window new top. 
Dec 2012

57000 mi

US $200
Visor cover broke 
Porsche in Nevada, United States
Jul 2011 - May 2013
Sep 2011

96000 mi

US $450
relay for convertible top went out 
Jan 2012

102200 mi
water pump and v-belt replaced 
Aug 2012

101300 mi

US $780
Convertible top would not go up/down. Had to replace the convertible soft top microswitch ($45) and optionally replaced the e-brake engagement switch ($5). turn signal switch broke. had to replace the whole unit. replaced with a used one featuring the trip computer and had the wiring for that installed. the horn bump stop/switch had to be replaced. also had a four wheel alignment done. 
Jan 2013

99000 mi

US $60
Electrical connector passenger headlight snaps into came loose. Repair shop adjusted and replaced bulb, although the old bulb illuminated when directly attached to a 12v battery. 
Porsche in Maryland, United States
Oct 2009 - Dec 2013
Sep 2011

45000 mi

US $3600
Variable camshaft timing system failure. Variocam actuator replaced and DME computer repaired. 
Porsche in Pennsylvania, United States
Mar 2011 - Dec 2011
Apr 2011

60000 mi

US $300
Front engine mount was worn out. Replaced with new mount. 
Porsche in Arizona, United States
Aug 2009 - Jun 2011
Nov 2009

103000 mi

US $300
Electric change over valve in secondary emission system nonoperative and replaced. 
Mar 2010

104000 mi

US $200
Cracked oil filler causing loss of oil. Removed & replaced oil filler system. Also replaced AOS and cleaned throttle body since they were removed for repair. 
Porsche in North Carolina, United States
Mar 2009 - Jun 2014
Nov 2009

78000 mi

US $1700
failure of seal on water pump - coolant leak MAF sensor failure. New part installed, faulty. 2nd new MAF installed, fine. All corrected while car was still in shop. 
Apr 2012

88000 mi

US $400
Airbag sensor light on, likely failed sensor in seat-belt(s). Not fixed at this time. Failed emergency brake sensor. Sensor must work and brake light illuminate for convertible top to work. Leak in coolant overflow tank. Replacement part ordered but not yet installed. Cracked coolant overflow tank replaced. Replaced brake light sensor. 
May 2012

88300 mi

US $275
Failed voltage regulator. Part ordered from Pelican and installed by local indy shop. 
Porsche in California, United States
Mar 2009 - Mar 2013
Apr 2009

30000 mi

US $500
The air oil separator (AOS) was showing signs of approaching failure. The AOS and connecting J-tube were replaced during the 30k maintenance as further preventative maintenance. $150 in parts + self labor vs. possible engine replacement. 
Jun 2009

30000 mi

US $915
The fuel pump failed. The fuel pump, fuel filter and seal were replaced with new factory parts. 4 hours of labor for inspection and repair required. I suspect fuel filter was never replaced before due to low milage of vehicle and three previous owners. 
Jul 2010

45000 mi

US $250
Cracked coolant tank became increasingly leaky after long road trip. Replaced old tank. 
Jul 2011

53000 mi

US $500
The window regulator which had been failing for the last several months of use finally failed completely. The passenger window would no longer lower. Thus I couldn't use my convertible top either. 
Nov 2012

68300 mi

US $600
Serpentine belt pullies and bearings were worn out and needed replacement. Cold air intake fan needed replacement as well. 
Porsche in Florida, United States
Apr 2009 - Sep 2009
Sep 2009

76000 mi
Weird issue with temp sensor/ECU.(Works fine with MAF disconnected). 
Porsche in Colorado, United States
Mar 2009 - Jun 2014
Oct 2009

31000 mi

US $216
Replaced Ignition Switch 
Apr 2011

35000 mi

US $500
One O2 sensor replaced 
Apr 2014

45200 mi

US $320
Anti freeze was a bit low making the idiot light come on under hard acceleration, resulting in a CEL. 
Porsche in California, United States
Mar 2009 - Mar 2010
Apr 2009

80000 mi

US $300
Water pump was leaking at the bearing seal. Part was ordered on line and replaced by me 
Jul 2009

82000 mi

US $47
replace ignition coil pack 
Sep 2009

85000 mi

US $250
Coolant tank failed, had to be replaced 
Porsche in Arizona, United States
Mar 2009 - Jun 2012
Oct 2009

78000 mi

US $200
Passenger window regulator broken. Second time repaired in 10 years. 
Porsche in Michigan, United States
May 2009 - Jun 2014
Jun 2009

83000 mi

US $800
coolant storage tank cracked - typical of older Boxsters. 
Sep 2009

86000 mi

US $46
horns burned out due to horn pad bushings wearing out allowing horn to engage contacts continuously - known problem with older 4 spoke Porsche steering wheels. dates back several models. shame on Porsche for continuing to sell poor designs 
Jul 2010

89000 mi

US $120
Airbag light on. Stupid design of seatbelt with a resistor that will get dirty and / or fail. 
Oct 2010

92000 mi

US $300
Convertible top arm socket broke. Typical failure mode for Boxsters. 
Sep 2011

97000 mi

US $300
Some widget valve in the emissions system was bad (formerly this function was performed by PCV valves). 
Apr 2012

98500 mi
Airbag light, reset it with Durametric software. 
Sep 2012

102000 mi

US $3000
Rear main seal leaking.  New clutch/flywheel/release bearing (worn)& since the RMS was leaking it was a good time to replace. Also Intermediate Shaft Bearing replaced (known weakness of Boxsters), coolant temp sensor replaced, ebrake engmt sensor replaced. 
Porsche in British Columbia, Canada
Mar 2009 - Apr 2012
Jun 2009

94860 mi

C $1200
Second water pump within 1 year replacement. The pump rattled for 4 days before dying. Coolant spashed all over engine. Complete replacement 1000 tow 200. 
Oct 2009

96720 mi

C $80
Both Halogens went out on low beam. 2 $15 light bulbs and a half hour to install. 
Dec 2009

97960 mi

C $800
Key became corrupt after water leaked into the drivers computer. Cause was faulty drainage pipe behind drivers seat. 
Mar 2010

99820 mi

C $200
Windshield convertible top sensor switch went kaput. After removing the hard top the switch worked for a few minutes then died. Had to manually put top up and order switch. 1 hour labour ($100) + parts ($56) + taxes. 
Sep 2010

104160 mi

C $1000
Convertible top push rods broke. 
Nov 2010

104780 mi

C $550
Convertible top push rods replaced. As well as drip trays in convertible top down position. Leak to front passenger side corrected with repair as well as top now functional. 
Porsche in Connecticut, United States
May 2009 - Jun 2014
Jul 2012

22200 mi

US $60
Sleeves from cat pipe to muffler opened up. Caused excessivley loud noise. Resecured w/new locking nuts. 
Nov 2012

23200 mi

US $420
Check engine light came on. Diagnosed as bad air mass meter. Air mass meter replaced. 
Porsche in Utah, United States
Aug 2009 - Jun 2018
Jul 2010

108000 mi

US $6
Horn honks when hitting a bump. Repaired with rubber O rings. 
Jun 2013

134000 mi

US $349
Broke turn signal stalk 
Aug 2017

171793 mi

US $2500
Replace all 4 struts 
Porsche in South Carolina, United States
Jul 2009 - Jun 2014
Nov 2009

43000 mi

US $45
Airbag light on dashboard came on AGAIN! Seat belt latch was replaced last spring. On this trip the seat was removed and contacts cleaned - sensor light reset. After two weeks the light came back on. 
Apr 2010

48000 mi

US $150
Airbag light was on AGAIN!! Buckles had been replaced previously on both seats to address the known electrical contact problems. On this trip we finally installed a new wiring harness and the issue is resolved for now. 
Jul 2010

51000 mi

US $800
Front right radiator developed a leak and needed to be replaced. 
May 2012

67300 mi

US $1700
Seal on front left strut blew. Lost all fluid. Opted to replace entire suspension with ROW M030 kit which also included upgraded sway bars. Parts roughly $1100, labor another $600 
Jun 2012

68000 mi

US $350
Water pump went bad. Leaking around shaft seal. Bought new pump and low temp thermostat and replaced myself. Car could not be driven home as leak was significant. Got my trailer and towed it home. 
Sep 2012

69000 mi

US $32
Center console cover hinge broke. Purchased retrofit kit and installed myself 
Porsche in Pennsylvania, United States
Aug 2009 - Oct 2012
Dec 2011

23000 mi

US $450
Convertible top 

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1999 Porsche Boxster 2-door

6-cylinder automatic 2WD

Porsche in Louisiana, United States
Mar 2009 - Jun 2014
Aug 2010

47000 mi

US $960
passenger side window regulator failed. Window stuck in the open position. Dealer replaced ragulator and window motor. 
May 2012

48500 mi

US $382
passenger window inoperative, intermittently. Dealer found a loose connection to the window motor. Lots of labor cost to find a simple problem. 
Aug 2012

50200 mi

US $50
horn blows by itself. Horn bushings behind airbag mount were worn or had collapsed. Added silicone gel to renew the rubber bushings. 
Jun 2014

51000 mi
Unrepaired item: electrical portion of the ignition switch -- a common Porsche problem -- the switch would not spring back to the "run" position after starting. I bought the part, but never got around to installing it. 
Porsche in California, United States
Jun 2009 - Dec 2011
Sep 2009

77000 mi

US $330
Fuel gauge was not registering full even after topping off tank. Shop was supposed to fix it but was unsuccessful. Ordered sending unit. Fuel sending unit replaced but fuel gauge still does not register full after topping off although it is closer than before sending unit replaced. Shop claims the next thing to do is remove instrument cluster to see if gauge is working correctly. 
Nov 2009

78000 mi

US $337
Replaced worn out motor mount. 
Feb 2010

80000 mi

US $250
Alarm and immobilization connector came loose on M535 unit causing car to not start. 
Mar 2010

81000 mi

US $266
Rubber bellows on Oil/Air separator was replaced due to a hole causing a vacuum leak. Leak caused fault codes that caused a CEL. 
Apr 2010

81700 mi

US $90
Rubber vacuum tube on SAV under intake plenum was broken causing a vacuum leak and SA fault codes causing a CEL. Rubber vacuum tube replaced. 
Jul 2010

85500 mi

US $12
Water pump failure, water pump replaced with OEM. Serpentine belt showed wear and replaced. Replaced driver's side headlight bulb. 
Porsche in North Carolina, United States
Sep 2011 - Dec 2012
Dec 2011

63000 mi

US $10
Foam near left rear drain ripped. Repaired with silicone. 
Feb 2012

64400 mi

US $25
Passenger and driver's door leaking water into cabin. Vapor Barriers were torn. Replaced vapor barriers. 
Porsche in Connecticut, United States
Jul 2009 - Jun 2018
Sep 2010

55000 mi

US $220
Cracked coolant tank 
Dec 2013

59000 mi

US $300
Left rear wheel bearing - price include special tool abt $250 

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

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