Porsche Boxster Porsche Boxster

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Porsche Boxster repairs by problem area

Engine (43%)

Transmission and Drivetrain (7%)

Brakes and Traction Control (2%)

Suspension and Steering (8%)

Electrical and Air Conditioning (22%)

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

Other (6%)

Chart based on 1566 repairs.
See TSBs and recalls for the Porsche Boxster.

Porsche Boxster engine repair cost distribution

$2500+ (11%)

$1000 - $2499 (19%)

$500 - $999 (18%)

$100 - $499 (29%)

< $100 (22%)

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

Chart based on 566 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2016 Porsche Boxster 2dr Convertible

375-horsepower 3.8L H6 6-speed manual RWD

9000 mi Replaced actuator for Porsche Sport Exhaust. Done under warranty (no charge). 

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2016 Porsche Boxster 2dr Convertible

330-horsepower 3.4L H6 6-speed manual RWD

12000 mi Replace thermostat 

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2015 Porsche Boxster 2dr Convertible

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

20646 mi Perform Campaign WKJ3 - Replace Tank Leakage Diagnosis Module 

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2015 Porsche Boxster 2dr Convertible

265-horsepower 2.7L H6 7-speed automated manual RWD

31000 mi Another PADM fault , this time RHS failed . Replace transmission mount under warranty. 

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2014 Porsche Boxster 2dr Convertible

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

76880 mi replacement O2 sensor 
48000 mi

US $65
Cylinder 5 ignition coil replaced 
22000 mi Coil pack failed 
24000 mi Second coil pack failed. Replaced the remaining 5 coil packs to ensure all six are new. 
14100 mi Engine control system fault: possible to drive on. Evaporative control system components replaced: filter, pump, sensor. 
33000 mi

US $1000
Engine vacuum pump failed causing code about cooling fault 

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2014 Porsche Boxster 2dr Convertible

315-horsepower 3.4L H6 6-speed manual RWD

38000 mi

US $2000
2 of 6 ignition coils were bad. They recommended replacing all of them. 
25000 mi

US $65
Replace one ignition coil 

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2014 Porsche Boxster 2dr Convertible

265-horsepower 2.7L H6 7-speed automated manual RWD

58000 mi Took car (at 58,000 miles) to local repair shop for oil change. Shop made errors in doing the procedure, and the engine seized (will require complete replacement) within 35 miles. 

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2014 Porsche Boxster 2dr Convertible

265-horsepower 2.7L H6 6-speed manual RWD

23000 mi [Engine] seal replaced under warranty 

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2013 Porsche Boxster 2dr Convertible

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

9000 mi

US $247
Replaced leaking oil pressure sensor. 
36000 mi

US $1500
Oil pressure valve leaking, oil wicked into DME, needed replacement. Valve was replaced once before after one year of ownership, approx 4,000 miles. Needed to drop engine and replace wire harness and DME. Dealer absorbed most of cost. 
24300 mi Fuel sensor replaced to remedy check engine indicator. 
5000 mi Check Engine Light due to faulty evap pump. 
6000 mi Active transmission mount throwing PADM fault. Replaced with new mount. 
9300 mi Oil plug started leaking after regular oil change. Oil plug replaced. 
10040 mi

US $35
Pinhole leak on the driver side muffler. It was a defect from the factory, not damage induced. Spot welded the pinhole leak. (it was in the weld). 
29000 mi The check engine light came on but the computer said it was OK to drive. I took it in and the dealership said it was a computer glitch that gave a vacuum sensor error. They reset the computer and did a software refresh. 
40000 mi Lastly, I had noticed a couple times where the key wouldn't release smoothly from the ignition. As I figured, they could not duplicate the problem; it's very intermittent. 

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2013 Porsche Boxster 2dr Convertible

315-horsepower 3.4L H6 6-speed manual RWD

5200 mi Modified fuel filler 
16400 mi Throttle assy. replaced because of bad poteniometer. 
26000 mi coil failure replaced under warranty 
2000 mi The car was leaking a fluid in my garage. The fluid was dark so I assumed it was oil. However, the dealer looked at my car and they believe it was coolant and that that can happen from time to time. So normal. 
2800 mi Engine would stall during operation of the vehicle. A crank sensor spacer was added to my vehicle. Cars manufactured after September 2013 have the spacer in place. My car was manufactured prior to September 2013. Could not get the car to start, crank but no compression noises. Going to tow, then 2nd mechanic called, said push the clutch and accelerator to the floor and try to start it for 1.5 minutes. Started after 1.5 minutes. Known rare prob, unknown cause. 

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2013 Porsche Boxster 2dr Convertible

265-horsepower 2.7L H6 6-speed manual RWD

11000 mi Oil Pan replaced 
27000 mi PCM erratically rebooting. They updated the PCM for me. It didn’t totally fix the problem, but still happens, but much more intermittently. 
9000 mi

US $989
Oil Leak. Technician installed wrong drain plug washer causing over tightening and damage to threads in oil pan 

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2011 Porsche Boxster 2dr Convertible

320-horsepower 3.4L H6 6-speed manual RWD

43000 mi

£85
Misfiring - diagnosis was High Pressure Fuel Pump partially failing. Estimated cost to replace the HPFP - £1000 inc parts, labour, VAT Nothing was done as I was hoping to get it repaired under warranty by the original seller (Ashgood Porsche). 

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2011 Porsche Boxster 2dr Convertible

310-horsepower 3.4L H6 6-speed manual RWD

40000 mi

£300
Thermostat stuck open 

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2009 Porsche Boxster 2dr Convertible

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

26000 mi

US $200
Small hose leak in engine. 

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2009 Porsche Boxster 2dr Convertible

310-horsepower 3.4L H6 6-speed manual RWD

72000 mi

US $600
Replaced clutch, pressure plate, throw out bearing myself after the clutch started slipping due to wear. 

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2008 Porsche Boxster

Engine not specified

3000 mi coolant leak-replaced rad cap; when car sold leak had stopped 

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2008 Porsche Boxster 2dr Convertible

295-horsepower 3.4L H6 6-speed manual RWD

11200 mi

US $1100
Replaced water pump. 
40300 mi

R 1
AOS replaced due to tear in rubber diaphragm. Self-diagnosed by high pitch screeching sound. 
40500 mi

R 2300
Replaced two deflection/idler pulleys due to noise. Bearings were worn. Easy DIY. 
45260 mi

R 200
Engine mount broken. DIY replacement. 
47520 mi

R 6000
Water Pump needed replacing - was noisy. DIY replacement. 
14000 mi Cam position sensor had a small oil leak. 
97000 mi

US $1000
Butterfly valve in intake failed. Replaced. 
72500 mi

US $700
Air/oil separator failed and had to be replaced. 
69000 mi

US $500
Oil air separator failed, previously failed at 42k 

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2008 Porsche Boxster 2dr Convertible

245-horsepower 2.7L H6 5-speed manual RWD

29000 mi

US $100
Oil level sensor gave false low-level reading. Shop "re-flashed" the affected electronic component and correct level was then displayed. Since then the sensor has displayed some minor variations in oil level. 
54700 mi

US $383
Air / oil seperater Replace belt pulleys - all 
37000 mi

US $448
Ignition coils. Degradation of parts but not failure and it was cheaper to replace during the routine service then wait until failure. 
50800 mi

US $4000
slight oil leak, shipping car overseas wanted gasket replaced at this time; added clutch replacement;  
53000 mi

US $600
Air oil seperator 

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2007 Porsche Boxster 2dr Convertible

295-horsepower 3.4L H6 6-speed manual RWD

30000 mi

US $287
Replace ignition coil pack on cylinder #3 
12000 mi

US $130
major oil leak out of front of motor by oil pump. They had to drain all coolant and oil lock cams into place and tear down front of motor. 
29000 mi Replaced one ignition coil that was cracked. 
80800 mi

US $950
One or more ignition coils failed - rough running and Check Engine warning. Dealer claims this is a normal wear item. All six ignition coils replaced. 
110000 mi

US $550
Oil separator failed, causing oil to be drawn in to engine intake. Caused severe hesitation and stalling. Replaced separator and cleaned intake. 
122500 mi

US $1100
Water pump started leaking. Had to tow to garage and replace water pump. 
133000 mi

US $1700
Replace clutch kit (Disc, pressure plate, springs, lever, etc). Not sure what actually failed: the clutch wouldn't disengage unless the pedal was depressed all the way to the floor, and I feared it would stop disengaging altogether. Clutch wear was within a reasonable period (90,000 miles) so I just attribute it to normal wear. 
139000 mi

US $800
Seal at timing chain worn, leaking oil. replaced seal 
165000 mi

US $800
Water pump failed and was replaced 

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2007 Porsche Boxster 2dr Convertible

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

64500 mi

US $1000
Air Oil Separator (AOS) bad. Replaced AOS. 
61960 mi

$90
Replace Air Oil Separator 

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2007 Porsche Boxster 2dr Convertible

245-horsepower 2.7L H6 5-speed manual RWD

36000 mi

US $1200
water pump failed & leaked 
36000 mi

US $1400
Water pump and related pulleys worn and replaced 
46000 mi

US $1200
repair leaking valve covers 
59200 mi

US $30
Out of town for 2 weeks,apparently I bumped the key after covering the car and the rear trunk opened, when I got home battery completely dead, charged battery ok but air bag warning light refused to go out. 
79000 mi

US $19580
80,000 service Replaced front motor mount Replace coolant temp sensor 
114000 mi

US $2050
Replace catalytic converters 
30200 mi

US $1016
Coolant temp sensor replaced. Oil level sensor replaced. For entire repair trip parts cost was $143, the rest was labor. 
39000 mi

US $500
replaced pulley bearings for belt. 
40300 mi

US $1165
replaced water pump due to a bad bearing that resulted in a high pitch whine. 
44020 mi

C $3100
replaced Rear main engine seal, intermediate shaft bearing seal, dual mass clutch plate plus clutch assembly 

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2006 Porsche Boxster 2dr Convertible

280-horsepower 3.2L H6 6-speed manual RWD

190000 mi

US $500
Diagnosed check engine light as need to replace gas cap. Perfect! 
58000 mi

US $1400
Replaced cracked coolant overflow tank 

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2006 Porsche Boxster 2dr Convertible

280-horsepower 3.2L H6 5-speed shiftable automatic RWD

35000 mi Bad miss at high RPM under hard acceleration. MAF issue. All DIY repair. [I have diag equipment and keep spare parts. In this case did not purchase out of pocket.] 
29000 mi

£620
Exhaust brackets replaced 

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2006 Porsche Boxster 2dr Convertible

240-horsepower 2.7L H6 5-speed shiftable automatic RWD

31200 mi

US $2000
broken air oil separator. replaced myself (dealer wanted to charge $1,300). still smoking, dealer replaced mass air sensor, cleaned intake etc to the tune of an additional $1,600 

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2006 Porsche Boxster 2dr Convertible

240-horsepower 2.7L H6 5-speed manual RWD

63252 mi

US $8058
IMS bearing knocking. Debris in oil. Found noise from bell housing area. R&R transmission to inspect. Reinstall transmission and replace motor. 
80200 mi

US $1835
Replaced clutch. I thought it was going to turn out to be a mechanical failure (clutch pedal pulsated) but ended up being just worn down. Replaced it and smooth as silk now.  
81840 mi

C $250
Replace O2 sensor 
37300 mi

US $876
occasionally smokes on startup. tested air/oil separator. 
41000 mi

US $1100
Replaced water pump 
62000 mi

US $1400
Water pump seized causing the belt to be thrown off (according to the dealer) I am unconvinced that the water pump was truly defective, but have no proof. 
14000 mi rear oil seal leaking 
24000 mi Upon starting the car after winter hibernation, engine--rap or knock persisted after 30 minutes of driving. To dealer 2 weeks later--noise was very faint; dealer diagnosed it as collapsed lifter; it refloated itself. Tech said this is common. 
60000 mi Leaking water pump, replaced under CPO warranty 
47120 mi

C $1000
water pump replaced 
47000 mi

US $2500
Water pump 
68300 mi Check Engine Light 

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2005 Porsche Boxster

Engine not specified

104000 mi The engine started making this sound that sounded like the lifters were bad. They found pieces of metal in the oil filter and declared it a catastrophic failure. 

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2005 Porsche Boxster 2dr Convertible

280-horsepower 3.2L H6 6-speed manual RWD

70200 mi Replacement of coil packs after one failed 
29000 mi Fuel pump went out. Replaced under extended warranty. Front compartment ECU. Probably caused from cleaning the front headlight. Dealer reset the codes. 
36000 mi

US $350
Oil leak from the hose that goes into the air oil separator. O ring replaced. 
45600 mi

US $100
Rear main seal and water pump. 
26660 mi IMS Failure...Blown Engine 
34720 mi

C $1000
Real main seal leak, not yet fixed. 
44000 mi front sensor replaced under warranty 
40000 mi Repaired water pump under warranty 
59000 mi

US $375
AOS failed. Parts ordered and repair done. 
35000 mi

US $1500
Replaced coils. Car ran poorly when cold. 
33480 mi Catastrophic engine failure believed to be IMS-Intermediate Shaft failure. New crate engine to be installed at Porsche's expense. Without vehicle for two weeks. 
52000 mi

US $600
Check Engine light came on. Codes checked and no major issues diagnosed. Codes reset. Same thing happened once or twice more. Mechanic spent a lot of time chasing potential electrical problems, and ultimately found the problem. A wire somewhere in the harness was pinched, creating intermitant check engine lights. Problem has been fixed. Worked in an oil change when the other work was done. 
78000 mi

US $2000
Losing coolant and significant coolant condensation around coolant reservoir area. Shop replaced the coolant reservoir and cap. It did not address the reported problem. Shop later found one of coolant pipe was blocked and clear it. 
79000 mi

US $3000
Shop could not determine the problem with cooling system, and it recommended to add a 3rd front radiator. Shop also replaced various couplings and tubes. After spending ~$4k, the cooling system seems to improve slightly. AOS replaced 
81000 mi

US $70
Replaced Air Oil Separator lower vent hose that failed to attach to its adaptor. This hose returns excess oil from AOS back to engine. 
79400 mi

US $1200
Alternator pulley 
84000 mi

US $300
Engine Failure! 
21000 mi Radiator fans inoperative. Radiator fan control modual and one (of two) fan motor replaced. 
39000 mi

US $847
Water Pump replaced. Could hear a slight grind coming from behind passenger seat. Bearing was going out. Impeller was not damaged. 
70000 mi

US $1500
New clutch 
21000 mi Mechanic noticed that water pump was broken when I took the car in for another reason. The water pump was replaced under warranty. 
62000 mi

US $4800
Cracked water pump Broken oil separator 
52000 mi Clutch pedal was high... replaced clutch 
41000 mi Check engine light came on. Dealer determined the carbon canister was leaking, ordered part and reset light.  The carbon canister was replaced under extended warranty with no out-of-pocket costs. 
40000 mi Check Engine light, needed to replace a flap that effected the emission. Car is a CPO and it was fully covered. 
55500 mi

US $100
Air Oil Separator. Car was smoking profusely and smelled of burning oil. Works fine now. 
31000 mi

US $980
Water pump, replaced thermostat, serpentine belt and coolant flush done also 

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2005 Porsche Boxster 2dr Convertible

280-horsepower 3.2L H6 5-speed shiftable automatic RWD

29000 mi

US $400
rear main seal had to be replaced 

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2005 Porsche Boxster 2dr Convertible

240-horsepower 2.7L H6 6-speed manual RWD

23000 mi Replaced O-RING on suction oil pump for cylinders 4-6. 

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2005 Porsche Boxster 2dr Convertible

240-horsepower 2.7L H6 5-speed shiftable automatic RWD

47700 mi

US $100
AOS failure 
56700 mi

US $290
Replaced spring in oil pump and drained and replaced oil and filter. 
25110 mi Failed cat - replaced under Warranty. Exhaust Manifold - Replaced Under Warranty. 
19000 mi

US $500
Faulty oil seal. Dealer had to pull transmission to fix. Warranty had expired 6 weeks earlier so Porsche gave 75/25 goodwill repair. 
34000 mi

US $450
Replace leaking water pump 
53000 mi

US $2100
Routine maintenance to replace spark plugs. After the repair, car had a "Service Now" warning light when I picked it up. Showed to dealer. They gave me a loaner and kept the car. Diagnosed that one of the new plugs and ignition coil were bad and replaced. Problem fixed. 

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2005 Porsche Boxster 2dr Convertible

240-horsepower 2.7L H6 5-speed manual RWD

60000 mi

US $3200
water pump and seals 
58000 mi

US $75
Air Oil Separator failed. Replaced under extended warranty. Normal operation restored. 
59000 mi

US $75
RMS as a result of previous AOS failure. Also replaced clutch, throw out bearing and IMS bearing as preventative maintenance.  Replaced Mass Air Flow (MAF) sensor. 
66700 mi

US $200
Replaced Motor and Transmission Mounts 
70000 mi

US $75
Replaced water pump 
84000 mi

US $2600
Replaced tension roller 
99600 mi

US $1200
Replaced leaking water pump 
81000 mi

US $415
Replaced all coil packs when spark plugs were replaced. Two were faulty so, I had them all replaced. 
86000 mi

US $100
Fuel pump relay. 
20460 mi

C $10000
engine failure..due to 1 cam lifter collapsing..premature wear..destroying lifter camshaft oil pumpos etc etc..still waiting for parts after 4 weeks 
24530 mi Bolt holding idler pulley onto engine broke off. Belt flew off leaving car undriveable. Required roadside assistance (CPO warranty). 
45891 mi Replaced rear main seal and intermediate shaft bearing cover. 
47300 mi Occasional oil smoke from exhaust upon a cold start. 
65100 mi

C $10000
Engine cylinder cracked. Common for boxsters. Dont ever buy this car, they are unreliable. 
35300 mi Significant smoke on startup. I had found engine oil overfilled. Showed dealer video, was told "they all do that" and nothing is wrong, but overfilling oil could have caused worsening. Still occurs intermittently. No driveability issues. 
44000 mi

US $1300
Water pump leaking 
45260 mi

C $300
Oil surpressor leak 
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. 
53000 mi Water Pump was making noises and required replacement. Covered by certified warranty. 
83400 mi

US $718
Replaced water pump and serpentine belt. Pump had intermitment bearing sound and was replaced prior to failure. Pumps recommended replacement every 60k due to plastic impeller. This one may have been the original pump, so replaced. 
60000 mi

US $1500
Oil pan damaged 
66000 mi Car was no start, dealer changed spark plugs and found that ignition coil packs were faulty, replaced same. 
78000 mi

US $100
check engine light on; fuel tank cap replaced. 
50000 mi RMS (rear main seal) - need I say more ? 
73000 mi

US $700
nyet. Just fixed the oil leak with a rubber/silicone camshaft seal. 
106000 mi

US $1000
Water pump broke 
106700 mi

US $400
Air oil separator broke; 
52000 mi Water pump seeping; replace water pump. Worn serpentine belt. Replaced belt and all three rollers. 
72000 mi

US $150
Air-oil separator failed; oil in intake system requiring replacement AOS and cleaning of MAF and tubes 
23000 mi IMS failure. No warning, occured in traffic, at idle, in neutral. towed to the dealer. Porsche will pay for 100% although the car is 20 months out of warranty. the car was purchased from and maintained by the dealer doing the work. 
103000 mi

US $8459
Blown motor. Factory defect. Slipped cylinder sleave. 
51200 mi

US $2006
While driving at a low speed, the engine suddenly had a rattling sound like a rock in a tin can. Intermediate shaft failure. 10 months past the warranty, Porsche provided a new engine for free, I had to pay for labor. 
35000 mi

US $7500
IMS bearing seized, breaking the intermediate shaft. Total engine replacement with used engine. New clutch, IMS ceramic bearing retrofit, water pump, air/oil separator etc. 
36000 mi

US $9500
replaced complete engine 
34000 mi

US $7000
valve lifter failed causing abnormal engine sound. was able to drive to the dealer. the engine was rebuilt by porshe, $7,000 labor, $7,000 parts. Porsche paid for parts 

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2004.5 Porsche Boxster

Engine not specified

30460 mi water pump disintegration 

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2004 Porsche Boxster 2dr Convertible

264-horsepower 3.2L H6 6-speed manual RWD

97000 mi

US $115
Replaced Air/Oil Separator because car was idling roughly, drawing major vacuum through the crankcase and blew white smoke a few times. Repair was successful and fairly easy. 
100600 mi

US $800
Fuel pump failed non-catastrophically. Car was slow to start for a week or two. I assumed that it was the battery due to not driving the car enough. I drove it to Modern Aircooled for a thorough general inspection and oil change, and they identified that the fuel pump was failing to produce needed pressure. The fuel pump was replaced. 
102000 mi

US $500
Water pump failed. It was gushing coolant once the system pressurized and caused bad noises. Belt tenioner roller replaced. Bolt was rounded over and required cutting to remove. Cutting the bolt took a very long time due to lack of access. Bolt was replaced with M10x50mm set screw and lock nut due to lack of access. Replacement pulley used was Sebro brand. 
45880 mi

€70
Faulty cap on cooling circuit. Vehicle lost about 5 liters of cooling liquid and stalled due to low level of liquid / overheating. Common issue, easy fix. 
45980 mi

€480
Cooling system issues - coolant is leaking somewhere under winshield and makes it foggy. 
46500 mi

€177
Very strange vibration at cca 3.000rpm and owl-like sounds at 1.800+rpm. The mechanics found out, that "some engine bearing" is on the go, but they can't distinguish which one. Statistics say that 8% of Boxsters die on IMS failure. Selling 
46500 mi

€50
Water leaking from under the engine... Some gasket failed. Definitely this is a terrible car !!! Have to sell it immediately. The whole car is one "Unrepaired Problem". Don't ever buy !!! Leaking oil, leaking water, leaking A/C, smells, smokes, makes noises, vibrates... and fails too often !!! 
42000 mi

US $800
Water pump was making noise and needed to be replaced. 
21000 mi

US $5000
Intermediate Shaft Failure 

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2004 Porsche Boxster 2dr Convertible

264-horsepower 3.2L H6 5-speed shiftable automatic RWD

32155 mi

US $3292
The car was inspected and additional repairs were done while doing ims bearing change and while the engine was out. IMS bearing update and new oil separator. $1,777.15 Ims bearing kit L&N $899 Oil separator $162.84 
23000 mi catastophic rear intermediate shaft failure, resulting in complete engine replacement. Resulted from inherent engine defect in the intermediate shaft design. 

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2004 Porsche Boxster 2dr Convertible

258-horsepower 3.2L H6 6-speed manual RWD

52000 mi

US $2000
Water pump pulley rattling, replaced pump 
83000 mi

US $1700
Seeping oil at intermediate shaft seal. IMS retrofit proactively done while replacing intermediate shaft cover seal. More information: http://www.lnengineering.com/ims.html. 
89000 mi

US $700
Front motor mount worn out resulting in clunking and vibration. 
106000 mi

US $2200
Precat rattle. Required replacement of exhaust manifold since precat is built into it. No aftermarket available. 
116000 mi

US $500
Slightly higher idle (@ ~1k). Infrequent puffs of blue smoke on cold startup. Check engine light. Replaced air/oil separator to correct problem. 
117000 mi

US $2100
CEL thrown for catalytic converter failure. Replace catalytic converter. Part of exh manifold. 2 on car. Other one replaced 15 mo earlier. 
100500 mi

US $20
Moisture under truck lid. Coolant Pressure Release Valve (located in trunk next to coolant filler, under plastic cover) was leaking. Significant white residue/crystals of dried coolant around valve. Replaced 2 o'rings. 
49000 mi

US $15000
Rod bearings failed. Detected by oil sample analysis. Cams scored. IMS bearing in early failure mode (full of oil). RMS leaking slightly. Replaced rod bearings, IMS bearing, RMS, precautionary replacement of clutch, water pump, thermostat 
93900 mi

US $500
Water pump mounting point was leaking. I chose to replace pump. The 90k mile service was about $3000 including the water pump. 
95000 mi Leaking water pump replaced. I elected to replace the pump as I consider it a regular replacement item after 50k miles. The car then developed overheating problems requiring a flatbed trip back to dealer. The dealer claims it was an air pocket. Where the 1.5 gallons of coolant I added went they won't say. I also burped the system after I added the coolant. The dispute with Leith Porsche continues. 
103000 mi

US $10000
02 sensors, plugs, AOS,AOL,  IMS bearing replacement of 6 year old replacement, front engine mount, oil and filters. The clutch and flywheel were also failing and were replaced.  
71000 mi

US $3500
RMS was leaking a small amount of oil. I had the IMS upgraded to the L&N dual row bearing(brand new version). At the same time, I elected to replace the clutch; Sachs. 
72000 mi

US $120
Replaced a worn out front engine mount. 
48000 mi

US $90
Expansion tank cap failure. Replaced cap. 
47000 mi

US $800
Water pump was slightly leaking, replaced as preventative measure. 
69000 mi

US $55
Coolant leak. Coolant reservoir vent replaced. 
10000 mi

US $6507
Catastrophic engine failure due to intermediate shaft failure. Dealer confirmed; known problem but refused to fix b/c out of warranty & 2nd owner. My mechanic rebuilt engine & photodocumented for class-action suit investigation. 

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2004 Porsche Boxster 2dr Convertible

258-horsepower 3.2L H6 5-speed shiftable automatic RWD

63000 mi

US $93
Emissions air-oil separator (AOS) failed, and had to be replaced. 
85000 mi

US $8
Engine ran less than smoothly at low throttle settings under some conditions. Cleaned throttle body & tightened several vacuum line connections. 
105000 mi

US $500
Air oil separator replaced (original unit) 
23000 mi

US $8
Ignition switch no longer dependable. Replacedvwith audi part as recommended on forums. 

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2004 Porsche Boxster 2dr Convertible

228-horsepower 2.7L H6 5-speed shiftable automatic RWD

63700 mi

US $800
replaced a leaking seal 

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2004 Porsche Boxster 2dr Convertible

228-horsepower 2.7L H6 5-speed manual RWD

60240 mi

C $1000
Changed motor carrier (mount) 
27000 mi

US $3800
Fuel pump replacement. Fuel pump replacement, major maintenance, new rear tires 
36000 mi Fuel pump was incorrectly installed when it was replaced fuel pump re-installed - when new pump was installed during last visit it was done incorrectly and came loose 
34300 mi

US $400
failed motormount - known weakness. Replaced with improved unit. PITA job. estimate is parts plus 5 hours of my time 
37300 mi

US $140
replaced (self) air-oil-seperator. Done at my convenience as it was slowly degrading. 
62000 mi fuel venting and recapture system had an error that resulted in a CEL/MIL. Took apart fender liner, checked everything. blew through it - put back together, cleared code, so far so good. 
32000 mi

US $45
Mechanical part of ignition tumbler failed, car hard to start, replaced ignition switch. 
58000 mi

US $425
CEL on, found dry-rotted gas-cap seal and also had to replace a shut valve seal, then passed evap. test. 
72000 mi

US $600
Technician found two cracked ignition coils and replaced them. Total cost for the shop visit was $1.500, but cost of coils and labor was approx $600 of that. The rest was routine fluid, filters and sparkplugs replacement. 

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2003 Porsche Boxster

Engine not specified

82000 mi Intermediate shaft went through the engine. New engine shipped from Germany. 
83000 mi Ignition switch. 

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2003 Porsche Boxster 2dr Convertible

258-horsepower 3.2L H6 6-speed manual RWD

89000 mi

US $1200
The 8 year old water pump failed. Replaced the thermostat, drive belt  and also found the plastic engine oil fill line was cracked so replaced. 
28500 mi

US $1600
RMS leak fixed 
65000 mi

US $100
engine mount  
41000 mi

US $2400
Rear main seal (RMS) leaking again. Replacing the RMS requires removing the engine. This cost $1,200 in labor and $20 in parts.  
97000 mi

US $800
Replaced leaking water pump, replaced thermostat at same time 
118300 mi

US $300
AOS Failed 
141000 mi

US $1000
Could smell antifreeze and front window was fogging badly. Received a low coolant warning on start up that went away when car warmed up. Heater core was replaced. 
148000 mi

US $500
motor mount - replaced with 987 version 
149000 mi

US $9400
Cracked head: loss of coolant, no intermix of coolant and oil (coolant was being burned in cylinder). Installed used head. 
160000 mi

US $1000
Replaced water pump at 65,000 miles 
163000 mi

US $600
Coolant fitting failed. Oil cooler oring leaking 
74000 mi

US $3500
Vibration in car at 3200 RPM, replaced engine mount 
60140 mi

C $250
Replaced a radiator that had a pinhole leak. 
57000 mi

US $1300
Replace clutch 
104300 mi Replaced air-oil separator 
106000 mi

US $4550
Replaced rear main seal (slight leak between transmission and engine, $4000. Replaced water pump, $400. 
16000 mi

US $68
Condensation on coolant tank. Replaced cap and bleeder assembly myself. 
18500 mi

US $1040
Replaced Rear main seal---warranty 
25000 mi Water Pump Replaced 
32700 mi

US $347
Rear main seal replaced. 
35000 mi engine seized. intermediate shaft broken. pistons and valves broken thermostat would not open. engine overheated to 213c. 
31000 mi Replaced faulty radiator cap 
44300 mi

US $527
Replace water Pump, top off coolant, bleed cooling system Replaced failed front engine mount. The problem is common, so "while I was in there", I just did this repair too. 
48000 mi

US $165
Replaced failed transmission mounts (2) 
50000 mi Clutch micro switch failed intermitently 
56000 mi

US $1100
belt tensioner paid by cpo 
59000 mi

US $1100
Check Engine Light 
97000 mi

US $10000
Cracked head due to failed water pump. Trying to source new head. 
141200 mi

US $10
Engine light came on, car would not run, towed home. Air intake hose was detached from from air filter. Removed hose and Mass Airflow Sensor, and throttle body, cleaned each of them reinstalled with new air filter, car ran like new. 
147479 mi

US $380
Water hose to oil cooler failed causing overheating. Replaced hose and system coolant, also replaced all cooling hoses in the car to avoid additional problems. 
69200 mi

US $1000
Oil separator valve. 

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2003 Porsche Boxster 2dr Convertible

258-horsepower 3.2L H6 5-speed shiftable automatic RWD

24166 mi

C $471
serp. pull serp. belt washer, bolt 
54000 mi

US $289
Check engine light on, evidently due to faulty seal on gas cap. 

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2003 Porsche Boxster 2dr Convertible

228-horsepower 2.7L H6 5-speed shiftable automatic RWD

54200 mi

US $2200
Water pump, constant burning smell in exhaust, panel lights constantly come on -- check engine, airbags, emissions -- some go off after a few months. Faulty panel?Need emissions check/engine lite on.Completely taken apart & put back.Problems 
58000 mi

US $2900
Check engine light for PO491 and PO492 - emissions = $900. Assumed oil leak. Took car apart. Found nothing. $2,000. Water pump = $900. The car is now for sale. Repairs are too expensive. Put 7K on it since I bought it with no dash lights on. 
32000 mi

US $397
Check engine light came on. Dealer diagnosed vacuum reservoir and damaged the oil drain plug so an unnecessary oil change was done. I distrusted the dealer and thought it was a commission scam. Only reset warning light, no problem now. Bad dealer! 
32000 mi

US $400
Vacuum accumulator had to be replaced because it failed and triggered the CEL. 
126000 mi

US $550
Replaced the motor mount 
62000 mi Chech engine light. Code PO491 PO492. Vac lines off. Replaced air pump relay 
29000 mi

US $600
Owner noticed a noisy rattle early in January. Mechanic diagnosed it as a water pump problem and replaced it. 

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2003 Porsche Boxster 2dr Convertible

228-horsepower 2.7L H6 5-speed manual RWD

16693 mi

US $664
Cracked coolant reservoir replaced. Serpentine belt replaced. 
104000 mi

US $200
Amos was replaced 
30000 mi

US $40
ignition switch replacement; bought switch on-line and replaced it myself 
94000 mi

US $300
Motor mount was hanging on by a thread. Could feel the motor shift in corners. Motor mount replaced with polyurethane mount for longevity. Mild increase in NVH. One transmission mount was leaking. Replaced both to be on the safe side. 
96000 mi

US $500
Chain guide on driver's side head lost a chunk which clogged the oil return port. Disassembly of cam shaft cover required to repair and replace. Oil pan removed to find plastic particulate. All chain guides replaced, chain tensioners replaced. 
69700 mi

US $400
Car is overheating. Water Pump failed and was replaced, overheating problem persisted. Still being diagnosed as to the original cause Air bubble in coolant system. System flushed. 
109500 mi

US $300
Bad ignition coils. 
123000 mi

US $600
fuel pump was replaced 
50000 mi

US $300
Took car in for oil change, replaced serpentine belt and water pump,  and R&R oil pan for small leak. 
59200 mi

US $119
Replaced Oil Separator 
27000 mi

US $345
Ignition switch assembly replaced, car would start and all accessories functioned normally, however the key could not be removed from the ignition. 
83000 mi

US $150
emission (fuel vapor) control valve for fuel tank failed. 
91000 mi

US $600
oil separator failed 
21756 mi Sealing ring F cranks again 
23645 mi Defective connector fuel pump 
53196 mi Bleeder O-Ring 
53320 mi Cooling tank cap replaced 
56803 mi Front motor mount. Front motor mount 

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2002 Porsche Boxster

Engine not specified

45000 mi

US $200
Ignition switch (electrical) and steering column lock failed. Replaced entire switch/lock assembly. 
55900 mi

US $250
Mechanical failure of ignition switch - would not release key properly. Replaced entire electrical/mechanical ignition switch assembly. 
56000 mi

£700
Cooling system (?) - new fan resistor fitted. 

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2002 Porsche Boxster 2dr Convertible

250-horsepower 3.2L H6 6-speed manual RWD

56000 mi

US $20000
IMS bearing died and took entire engine with it. Car is a piece of junk. Will NEVER own another Porsche! Watch out if you are looking to buy one...worst car ever owned. They are cheap for a reason - they are junk! "Perfection" my butt! 
83000 mi

US $240
The Air Oil Separator failed and was replaced. 
75000 mi

US $850
Replaced the cam housing seals as they were dripping oil onto the exhaust manifolds below. 
75500 mi

US $490
Replaced water pump. 
78000 mi

US $676
Coolant expansion tank cracked, leaking coolant into trunk. 
81000 mi

US $370
Air/oil separator broke, spewing a cloud of smoke Q couldn't have duplicated in James Bond's Aston Martin on his best day. 
86200 mi

US $513
Water pump began leaking slightly around the shaft. I replaced the pump in May 2012, 10,020 ago but made the mistake of purchasing a pump through USA Parts, who didn't warranty the pump. Purchased this pump from Pelican Parts. Be forewarned. 
81000 mi

US $900
IMS bearing preventively replaced at 72k failed. Bucked while driving at slow speed, later had pool of oil under car. The bearing was mostly in place but a couple of the balls were missing and the race was scored pretty badly. 
42000 mi

US $898
Ignition switch (mechanical tumbler) died, so car could not reliably be started, and lights did not work when running. Ignition switch module replaced (part was $525). Also oil change and brake fluid replacement. 
43000 mi

US $1580
First Catalytic converter on bank 1 was failing. As this is one piece with the headers, headers were replaced as well. Part cost $1295 
62000 mi

US $15800
Engine blew at Watkins Glen. Dropped a valve, possibly con rod. NOT due to over-rev. Not a reliable car, even given track use. Every moving part except for rods, pistons and camshafts replaced, plus oil cooler, air-oil separator, water and oil pump. 
70000 mi

US $20
had to replace ignition switch, second one in 2 years. doable by yourself, but a PITA. Take the seat out... 
68000 mi

US $500
Replaced oxygen sensors 
117700 mi

US $600
Oil Filler Tube torn. Caused oil smell from getting on exhaust and vacuum leak. Replaced and degreased engine - this is $265 of the $900. 
121300 mi

US $72
Replaced air oil separator (AOS) to eliminate sporadic smoke on startup. Replaced spark plug tubes to fix oil leak. 
36000 mi

US $3300
Oil leak---RMS replaced.  
44600 mi

US $30
Ignition switch mushy, would not return to run position. Part ordered online and replaced by me. 
60000 mi

US $1303
At hwy speed RPMs would drop suddenly, no throttle response. To shoulder, restart after 30 secs. 3x in 200 mile trip. Enroute to repair shop, 2x, 2nd time required tow (1/4 mile, ugh). Fuel pump, relay, oil separator. 700 miles, all good. 
46000 mi

US $30
Replaced ignition switch. Key would not release from ignition without jiggling for a while. 
25000 mi valve cover gasket oil leak, convertable top tear 
61000 mi

US $9000
valve sticking, timing chain failure motor mount failure IMS failure 
83000 mi

US $1000
Hose to water pump ruptured. Will replace water pump also since original is on borrows time at 83k miles. 
93000 mi

C $2600
main seal, clutch and bearing seal 
78000 mi

US $300
Coolant pump seal failure - replaced pump. Replaced thermostat and serpentine belt. 
81000 mi

US $900
Idler pulley, tensioner pulley, serpentine belt 
88000 mi

US $2200
clutch, flywheel 
75000 mi tune up, mas replaced 
60000 mi

US $300
Check Engine Light came on, ran scan, showed mass Air flow Sensor, bought new sensor and installed. 20 minute job, total cost of part $300. All OK Now! 
60000 mi

US $300
Fuel Pump went bad. Found an OEM on Ebay and replaced it myself in about half a day. 
59000 mi

US $700
Cracked Expansion Tank 

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2002 Porsche Boxster 2dr Convertible

250-horsepower 3.2L H6 5-speed shiftable automatic RWD

82460 mi

C $125
Vacuum leak, hose cracked. Easy repair. 
89900 mi

C $35
Replaced oil filler tube, leaking. 
92380 mi

C $200
Vacuum leak 
57000 mi

US $25
Replaced Change Over Valve to eliminate 1411 and 0410 OBD codes. Actually found broken vacuum pipe and fixed it too at no cost. 
63000 mi

US $400
Check Engine Light with Codes 0410 and 1411 indicating a problem with the air injection system. Mechanic replaced vacuum tank and cut over valve. 
78000 mi

US $160
coolant control valve for tiptronic transmission broke and had to be replaced. 

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2002 Porsche Boxster 2dr Convertible

217-horsepower 2.7L H6 5-speed shiftable automatic RWD

48000 mi Replaced Engine (IMS Failed) 
91760 mi No work done, estimate only. Approx. repair >$2500 Potential issue with IMS or sliders. 
51000 mi Cracks were found in the exhaust manifold covered under factory waranty by the 8 year/80,000 emissions warranty. 
85000 mi

US $4500
AIR OIL SEPERATOR FAILED. CAR BLEW GOBS OF SMOKE AND HYDROLOCKED THE MOTOR.  
60000 mi

US $1000
Vacuum reserve leak, new tank installed. 
63000 mi

US $1800
Mass air flow sensor replacement, air oil separator replacement 
105000 mi

US $75
check engine light showed intake leak. Visual inspection discovered cracked vacuum tube which goes from the intake manifold to the brake booster. 
137200 mi

US $100
Replaced AOS separater 
208000 mi

US $755
AOS failure 
55600 mi

US $1400
Replace water pump, thermostat 
62000 mi

US $500
replace ignition switch 

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2002 Porsche Boxster 2dr Convertible

217-horsepower 2.7L H6 5-speed manual RWD

86000 mi

US $2054
Clutch replacement, car still had original clutch so not unanticipated. Exhaust has to be removed to access the clutch and some bolts were too corroded to remove so had to be drilled out so there was more labor charge than expected. 
102000 mi

US $640
Removed cat. heat shields which were rattling, replaced battery, oil change 
60000 mi Rear main seal had a very slight leak; replaced under third-party extended warranty before warranty expires in December. 
78300 mi

US $125
Air-Oil Separator was showing early signs of failing (check engine light, squeak from engine compartment, high vacuum evident when attempting to remove oil cap with engine running.) Ordered Air-Oil Separator and replaced it myself. 
48100 mi

US $2800
Engine rear main seal leak. Replace rear main seal, LN engineering IMS bearing upgrade (original bearing badly worn), clutch work + transmission input shaft seal. Brake/clutch fluid flush. Replaced air to oil separator, all tubes (leak) + spark plugs. Engine rear main seal leak. Replace rear main seal, LN engineering IMS bearing upgrade, clutch work + transmission input shaft seal. Brake/clutch fluid flush. Air to oil separator replacement. Replace all tubes (leak) + all 6 spark plug 
49300 mi

US $966
Replace water pump, thermostat.  Front engine mount rubber cracked. 
51200 mi

US $450
engine oil filler tube leak.engine does not idle properly. 
122100 mi

US $155
A wire connecting the emissions came loose and tripped a check engine light. Shop fixed, light came back same day. 
129000 mi

US $2500
The air pump on the emission went out, check engine light, won't pass inspection. About $1000 to fix. 
57000 mi

US $600
Tech noticed water pump leaking Water pump replaced cured leak 
58300 mi

US $1500
Taken in for headlight adjustment, observed RMS/IMS oil leak. Teardown revealed IMS leak, worn clutch Replaced RMS with factory part, replaced IMS with LN Engineering Retrofit Kit, replaced clutch (wear item), replaced case half screws 
39680 mi

C $125
Car would not start occasionally. After 10 mins of just sitting there, the car would start. It was found that the clutch switch was defective and was replaced at the dealer. 
50000 mi

US $4500
My ims bearing was leaking due to the flange. The bearing was in good condition though also replaced. The thermostat was causing the car to run a little warmer. The water pump was slightly worn, but still fine. 
50000 mi

US $125
Drivers side cam cover leaking slightly , tightened bolts. Left alone. 
114000 mi new front engine mount, exhaust manifold leak, spark plugs & tubes, replaced purge valve, cleared fault codes. 
114200 mi

US $950
CE light on; engine surging. Diagnosis: air oil separator, last replaced 4 years & 14K miles ago. 
71000 mi

US $1000
Rattling noise from engine. Water pump and belt tensioners broken/worn out. Replaced water pump, thermostat. Replaced tensioners. Belt was replaced recently. 
92000 mi

US $300
Crank position sensor 

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2001 Porsche Boxster 2dr Convertible

250-horsepower 3.2L H6 6-speed manual RWD

90000 mi

US $10000
Oil was getting into coolant, no coolant into oil. Diagnosed, I chose not to repair. 
43000 mi

US $12050
cracked head 
55400 mi

US $15000
Upgraded engine to new high performance internals as well as upgraded IMS shaft, additional oil pickup, upgraded oil filter mounting. Oil seeping through porous aluminum block casting, possibly because of damage during mod process. Replaced block. Cracked block, leaking oil through porous aluminum casting. Replaced block, and at the same time upgraded engine to new high performance internals as well as upgraded IMS shaft, addditional oil pickup, upgraded oik filter mounting. 
66000 mi

US $500
Check engine light. bad oxygen sensor on bank two, rear, but replaced both rears sensors 
79000 mi

US $400
bad motor mount 
85000 mi

US $400
Ignition switch repair. Plastic part on rear of switch replaced. Common problem with m96 cars 
86000 mi

US $1000
Mass air flow sensor, coil packs 
91000 mi

US $1100
Immobiliser not functioning replaced and reprogrammed 
73200 mi

US $600
A camshaft position sensor had to be replaced. The exhaust bypass valve for warming the catalytic converter right after starting up had to be replaced. 
85000 mi

US $700
Water pump failure 
104780 mi

A $1200
Replace water pump and serpentine belt $960.00. Service at same time. $$240.00. 
122000 mi

US $760
Overflow tank was leaking coolant. Drops were coming down in front of the engine on the passenger side. Two shops diagnosed as the water pump, but it wasn't. No coolant in the trunk as is common for leaking resevoir. 
60000 mi

US $550
Oil separator failed and was replaced 
69000 mi

US $640
Bad oxygen sensor 
71000 mi

US $1000
Water pump bearing failed 
71200 mi

US $1200
needed new catalytic converter 
43400 mi

C $1400
needed O2 sensor 
68000 mi

US $1500
failed tensioner pulley for serpentine belt 
70000 mi

US $9000
Rod bearing failure requiring engine replacement 
56000 mi

US $500
Replaced plugs, coil packs and air oil separator 
39000 mi

US $180
Emissions bank 1-3 pre cat 02 sensor 
67000 mi

US $3500
Catalytic converter in the exhaust headers began to rattle annoyingly. Replaced the headers. Eye wateringly pricey. 
75000 mi

US $400
air oil separator failed spectacularly - batman's smoke screen style. Towed it to my independent mechanic and he replaced it quickly. 
82000 mi

US $200
Coolant levels were continually falling and the trunk carpet was wet. The old tank was cracked from age on the bottom. I temporarily patched it until the new tank arrived. I replaced in my self - because I have small arms and hands. 
88000 mi

US $400
Car overheated after sitting during a particularly cold spell. The water pump impeller had broken. New water pump installed. 
47000 mi

US $155
Replaced failed motor mount. 
49000 mi

US $90
7Replaced blown Air Oil Separator (AOS) 
49000 mi

US $2700
Rear main seal 
51000 mi

US $500
Broken motor mount 
58000 mi

US $300
Pre-cat oxygen sensor failed, replaced 
70000 mi

US $730
Water Pump failed. Replaced Water pump, serpentine belt and new antifreeze 
78000 mi

US $1800
Check engine light and rough running idle; MAF cleaning and catalytic converter replacement 
89500 mi

US $300
Replace Oxygen Sensor before Catalytic converter 
99300 mi

US $535
AOS Air Oil Separator needed replacement Code reappeared 50 miles later, MAF - Mass Air Flow sensor 
115300 mi

US $517
Thermostat failed and engine overheated. Dealer replaced thermostat, radiator cap and re-filled coolant system. 
122000 mi

US $306
Replaced both catalytic converters Replaced O2 sensor. 
134000 mi Oil pan drain plug replaced. 
146000 mi

US $1247
Replaced air pump control valve and oil pressure sensor 
147000 mi Replaced heater core 
148000 mi

US $2151
Vacuum lines, seals and hoses replaced 
148000 mi

US $1387
Replaced radiator fan, fuse and resistor 
101000 mi

US $250
o2 sensor pre cat 
110000 mi

US $2600
along with some o2 sensors leaking oil pressure sending unit 
60000 mi

US $250
vehicle was inspected prior to a cross country drive - replaced hoses that were starting to fail, fluids, fixed some small leaks, etc.  
72000 mi

US $3000
Replace water pump and hoses; system flush 
91000 mi

US $100
Air/Oil separator blew. Replaced. 
52000 mi

US $647
Misfire CEL; turned out to be a bad coil pack (for some reason this one was harder than usual to diagnose). 
53000 mi

US $242
I got a CEL indicating a bad O2 sensor (post-cat, bank 1); I replaced both post-cat O2 sensors myself; problem solved. 
58000 mi

US $520
Noted a small amount of coolant leaking below the water pump. When I looked, the serpentine belt was starting to get chewed up due to the w/p bearing failure. Replaced w/p & also (preventatively)installed a new thermostat. 
61200 mi

US $577
Ignition switch was getting a little difficult to turn, and sometimes the key was a little tough to remove. Removed and replaced ignition switch. 
40920 mi Replaced RMS - leaking warranty 
43400 mi Dealer Replaced RMS again - warranty 
67580 mi

C $500
CEL came on. O2 sensor replaced. 
69440 mi

C $3600
New MAF and air regulator plus intake manifold gasket 
79360 mi

C $3000
Check engine light came on. Required a smoke test to identify an exhaust leak. Required new exhaust manifold gaskets. Also had to weld a crack in one of the exhaust headers. Broken stud added to the problem. Mostly labor cost, parts not so bad. Car is much quieter too. 
36000 mi

US $250
Oxygen Sensor , pre-CAT , passenger side 
69000 mi

US $100
CEL light on, Code 1128, issues with exhaust side measurement. Replaced pre cat O2 sensor. CEL / code still happening. Will fix it when I can get to buying the parts. 
51000 mi

US $300
Replaced Coolant reservoir 
105000 mi

US $890
Water pump failure 
108000 mi

US $380
Air/Oil Seperator filure 
100500 mi

US $200
Replaced oil cooler due to oil in coolant. Simple job to do with minimum skills. Cause of leak was bad seals. Oil cooler failures are not uncommon on Boxster. The S model cooler will directly replace a base model cooler. 
101200 mi

US $118
Engine overheating in stop and go traffic. Replaced thermostat with LN Engineering 160 deg F unit. Flushed and filled cooling system. Problem solved. 
92000 mi

US $200
big puff of white smoke on start up, common problem, I've done this twice with this car. 
99200 mi

US $6525
Had to replace motor due to cracked head, oil was mixing with coolant, bought motor off of ebay and replaced it myself. Replaced oil cooler replaced water pump replaced MAF sensor replaced motor mount 
95000 mi

US $125
Replaced forward O2 sensor on the passenger side. My mechanic had found a fault when he scanned the codes stored in the car diagnostic computer. 
103300 mi

US $800
The air/oil separator failed. This is a pretty common failure. The part isn't that expensive but the labor is fairly extensive. 
108700 mi

US $980
An air pump that provides clean air into the exhaust stream to reduce emissions was malfunctioning and was replaced. 
116000 mi The air/oil separator failed. It's a weak area on these cars. This part had been repaired before less than a year ago so the shop replaced it under warranty for no charge. While this part tested bad, it didn't solve my surging idle issue. Transmission mount was worn and causing excess movement in the drive train. I had noticed the issue before but the mechanic noticed it this time and diagnosed the problem as a transmission mount and replace the bad part. 
117000 mi Idle surge-tried new MAFS (2nd one) didn't fix issue. Other problems fixed and electrical/vacuum checked, still surges. Mechanic getting diagnostic equipment upgraded, maybe with the live engineering support they can figure out the issue. 
118000 mi Idle surge FIXED! Mechanic's diagnostic equipment software update allowing him to work w/Porsche engineering to diagnose the problem. Problem-car's ECU needed software update for new mass air flow sensor design installed earlier. No charge. 
41000 mi

US $2200
The catalytic converter on bank 2 failed requiring manifold and cat replacement. 
42000 mi

US $200
Pre-catalytic Oxygen Sensor on bank 1-3 failed. Replaced both pre and post cat oxygen sensors on bank 1-3. 
57124 mi

C $1147
Waterpump, thermostat, and sway bar bushing replacement. 
80291 mi

C $175
Replaced right side radiator fan. 
82460 mi

C $625
Coolant recovery tank cracked, spilling coolant into the rear trunk area. Front left radiator fan not working. 
78260 mi

C $300
Alternator pulley seized, also replace worn tensioner pulley and lower idler pulley. Replace air/oil separator. 
57044 mi

C $1793
Drive belt, Air Injection Valve, Rear pads and rotors. 
103000 mi

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

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2001 Porsche Boxster 2dr Convertible

250-horsepower 3.2L H6 5-speed shiftable automatic RWD

132060 mi

C $600
Hose broke leaked anti-freeze. Replaced two hoses and fittings filled up anti-freeze. Had to bleed system as well. 
137020 mi

C $1650
Oil vapour canister replaced. Mass air flow sensor replaced. 
161700 mi

C $4000
2 Radiators and coolant replacement. mass air flow replacement fuel pump replacement engine mount replacement rough idle (hunting) cleaned out the throttle body. 
167760 mi

C $1500
middle radiator replaced thermostat and seal anti freeze 
155000 mi

US $1200
Emissions air pump was failing 
166200 mi

US $568
air/oil separator replaced again. 80k mile each oil separator hose replaced, broken and "glued" on prior repair of AOS 
167000 mi

US $700
Water pump failed again 
173000 mi

US $225
Cooling fan on left side failed 
186000 mi Rod bearing spun. Engine not repairable for reasonable amount. Sold car to someone who will R&R engine with salvage engine 
41000 mi

US $40
Bad spark plug on cyl 2, caused P0302 code and Check Engine Light. New spark plug fixed it. 
89000 mi

US $470
secondary air system, bad crossover valve and solenoid 
89300 mi

US $700
Repair emissions system. 

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2001 Porsche Boxster 2dr Convertible

217-horsepower 2.7L H6 5-speed shiftable automatic RWD

72000 mi

US $50
ignition switch 
75000 mi

US $100
Felt vibration at 3k rpm and slight clunk sound when down shifting from 5->4. Replaced front engine mount. Common problem for Boxsters around 50k or more miles. DIY @ http://pedrosgarage.com/Site_3/Install_Front_Engine_Mount.html 
45000 mi

US $2000
Cracked ignition coil causing misfires. Additionally, bad speed sensor in passenger front wheel bearing caused PASM system to go into failure mode. Car remained barely driveable until engine warmed and water around coils evaporated. 
45900 mi

US $400
Alleged misfire caused CPU to issue CEL light. Not replicable, only one misfire in last year, so reset the computer. 
48050 mi

US $6200
Variocam Actuator caused CEL fault - VA assy replaced. Leaking Cam covers removed, cheeks for both cam chains worn, replaced. Replaced IMS bearing with LN kit. New sway arms in front. Checked Clutch for wear, still 50% there. 
45000 mi

US $750
Leaky coolant tank. 
91300 mi

US $100
waterpump replacement 
98500 mi

US $415
replace coolant tank, flush coolant replace air oil separator 

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2001 Porsche Boxster 2dr Convertible

217-horsepower 2.7L H6 5-speed manual RWD

45260 mi

C $110
Got CEL steady light. Had code read. P1341. Ordered variable timing solenoid. Did not fix the problem. Will take car in again to the shop. Not happy. 
45260 mi

C $360
Code P1341/ CEL light came on and was diagnosed - possible cam adjuster. More work to be done. CEL light has not come on again since reset but was assured it likely will. 
45260 mi

C $900
Went to have cam deviation diagnosed again. The CEL light is out and has not come on again. Indy shop unable to locate problem because CEL light is out. However shop has recommended a IMS, Rms be replaced and clutch while in there. 
45260 mi

C $300
Same problem but different shop. Unable to fix or diagnose properly. 
71000 mi

US $150
Replaced Air Oil Separator 
71900 mi

US $100
Replaced engine mount. 
75000 mi

US $600
Coolant tank ruptured. Had to tow car home. Replaced coolant tank, coolant, and water pump. Water pump was preventative. 
66000 mi

US $1200
Water broke and needed a new battery. Thermostat replaced at the same time. 
47740 mi Coolant leak and they misdiagnosed it the first time so returned and they figured it out that it was the reservoir had a hairline crack so replaced. They covered the cost due to this was my 3rd time in and I suggested it was this first time 
68200 mi

A $2000
Injectors replaced 
89000 mi

US $100
Engine slipped timing while trying to start, now has no compression. Call to the local dealer resulted in being told this would be a $10,000 to $15,000 repair. I plan on removing the motor to see if I can fix it. 
89000 mi Motor blew up in October 2010, slowly repairing it myself. Bent valves while trying to start it. 
104300 mi P0446 evaporate system. 
106500 mi

US $3400
Vario cam pads needed to be replaced. Water pump replacement. Coil packs cracked. Spark plug tubes leaking. 
60000 mi

US $200
replace worn motor mount 
95000 mi Unable to fully fill car with gas. Took car to dealer, head mechanic put up on lift, didn't see any problems. Tried disconnecting one valve, had me go to try filling with gas, then tried with another fuel fill valve with same results. Mechanic said he would ask around for suggestions 
61380 mi

C $40
Ignition switch replaced. Was having trouble getting the key in and out of the ignition, and sometimes the car would think the key was there when it wasn't. 
41540 mi

C $1050
During idle power only, there was noise coming from engine which was either alternator bearing, water pump or accessory belt tensioner. Have had replaced the latter plus install new accessory belt and new coolant reservoir cap. 
50000 mi

US $130
Replaced the front engine mount myself because I'd read that they tend to fail, and when we got the old one out it was broken. 
54000 mi

US $75
Noticed car was leaking some oil (few drpos overnight). Researced problem and found spark plug tube o rings as most likely cause. Ordered new o rings online. Read online how to and replaced them myself. 
55000 mi

US $500
Car started/continued leaking oil. A leaking rear main seal was the cause. Dealer replaced the seal. Also replaced the clutch plate (wear item) "while we were there". 
57000 mi

US $120
Air/Oil Separator unit was replaced 
57000 mi Replaced Rear Main Seal 
91000 mi

US $381
Smelled coolant, and had visible leaking under car. Had dealer flush coolant, change gear oil, motor oil & filter. Dealer pressure tested system, found no leaks and performed requested services. After I received car back from service for coolant leak, the dealer flushed and checked the sytem and found no leaks. I ordered a new coolant cap for the expansion tank and no more leaks. 
93000 mi

US $918
Coolant overflow tank (complete assembly)replaced. 
118200 mi

US $2934
Noticed a disturbing grinding sound while at a drive through window. Caught the water pump and bearings failing just in time. Included all belt wheels (3) incl. tensioner and new belt. While replacing water pump my mechanic recommended the motor mount be replaced as well. This was the original motor mount as was the water pump. Mount was severely deteriorated. 
119700 mi

US $1450
Replaced right radiator 
123200 mi

US $3000
Intermittent CEL, diagnosed as MAF. Replaced spark plug tubes due to appearance of oil on catalytic converter.  Also replaced coil packs. 
124000 mi

US $550
Loose heat shields 
111000 mi

US $1300
Oil separator, Mass air flow sensor, spark plugs. Solved CEL problem. 
115000 mi

US $950
Water pump went out and broke the belt.  
85000 mi

US $400
AOS failed at the track. Mechanic was in attendance and ordered and replaced it in one day. 
55180 mi

C $400
Replaced cracked coolant expansion tank with new tank, coolant cap, and coolant top-up. A very common problem with all Boxsters. 
66340 mi

C $600
New air/oil separator. 
69440 mi

C $1600
New water pump, thermostat, gaskets, fresh coolant. 
57000 mi

US $700
Replaced ignition switch 
57000 mi

US $18000
Mass air sensor 
76500 mi

US $1200
Ignition coil housing cracked and replaced.  Oil fill tube replaced. 
86000 mi Electric issues with ignition, i.e., not starting, and the key was locking up. 
87000 mi

US $700
water pump 
121000 mi

US $210
Vacuum leak -a hose had cracked 
83000 mi

US $350
replaced coolant expansion tank 

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2001 Porsche Boxster 2-door

6-cylinder manual 2WD

133100 mi

US $600
MAF sensor failed 
69000 mi

US $190
check engine light on. dealer found this to be a software fault and re-flashed the DME software. 
112000 mi Failed water pump. 

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2000 Porsche Boxster

Engine not specified

51000 mi

US $300
Third time for mass air sensor. Tired of fixing it. Now driving with the check engine light on. 

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2000 Porsche Boxster 2dr Convertible

250-horsepower 3.2L H6 6-speed manual RWD

70700 mi

US $87
Replaced failed check valve 993-113-250-03, a one way valve in the emissions related Secondary Air Injection system. 
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. 
88000 mi

US $1000
Engine Mount Transmission Mounts 
58900 mi

C $1300
Cooling was less effective than new. Water pump replaced, along with thermostat. 
58900 mi Leak in cooling system....no trouble found....noticed on next trip with car 
89000 mi

US $1954
Leaking water pump was replaced. thermostat replaced due to concern it was not functioning properly. 
91000 mi

US $290
oil tube cracked and leaking. Tube replaced. 
96600 mi

US $12000
Cylinder heads, main bearing, clutch 
15000 mi

US $350
Replacement of seals that keep oil out of fuel mixture. 
51000 mi

US $800
Front right radiator developed a leak and needed to be replaced. 
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. 
24000 mi

US $89
Bad O2 sensor replaced 
213500 mi

US $1200
significant oil consumption and leakage. A number of contributing problems were found, including damaged bellows, breather hoses, spark-plug tubes (unique to this motor). 
80000 mi

US $2500
Repair oil leak. Preventive replacement of IMS bearing and seal with PN ceramic. 
82000 mi

US $80
Replaced oxygen sensor - bank k 1 rear - with Bosch 
89000 mi

US $600
Replace engine mount, cracked rubber, front of engine. 
65000 mi

US $200
O2 sensor throwing code, after replacement still throws code.  
70000 mi

US $90
O2 sensors failed. Replaced and turned off CEL with OBD software. 
59000 mi

US $500
Vacuum leak due to cracked hoses.  
66000 mi

US $400
Water pump replaced. Independent Porsche mechanic replaced for only parts cost because he had replaced water pump 18 months ago and it should not have failed, so he ate the labor.  
76000 mi

US $500
oil leak onto catalytic converter, due to decayed spark plug tube seals. Parts were replaced. 
88200 mi

US $400
coolant reservoir replacement because tank cracked 
87300 mi

US $400
replaced motor mount.  
89000 mi

US $120
Air Oil Seperater failed causing oil to enter intake manifold causing smoke out the tailpipe  
42000 mi

US $48
plastic end of ignition switch failed - cracked 
47000 mi Check engine light; fault code was for faulty Mass Air Flow Sensor; sensor cleaned and replaced and codes cleared 
67000 mi

US $500
All 4 oxygen sensors were replaced due to check engine light on. 
60760 mi Unusual exhaust noise when idle or low rev Problem came from heat shield around catalytic converter tube. Removed heat shield.  
74180 mi

€2800
Oil leak at RMS (Rear Main Seal). Requires removal of transmission & flywheel to be changed. Replaced clutch at the same time. 
85000 mi had to clean MAF sensor, for codes 1128,1130 
85000 mi had to reset codes again 
85000 mi would not pass inspection with P codes. put in a good tank of gas and problem cleared after a reset 
26000 mi

US $11
Ignition switch replacement 

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2000 Porsche Boxster 2dr Convertible

250-horsepower 3.2L H6 5-speed shiftable automatic RWD

71000 mi

US $1200
Air/Oil separator 
75200 mi Fuel vapor vent malfunction; did NOT repair; reset "check engine" light 
83200 mi

US $672
Engine noise due to bad idler pulleys and tensioner. All pulleys and belt were replaced. 
71000 mi

US $1200
Water pump, heat control valve. 
75000 mi lower hose blow out, towed to shop.getting new hoses and coolant. 

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2000 Porsche Boxster 2dr Convertible

217-horsepower 2.7L H6 5-speed shiftable automatic RWD

30000 mi

US $1000
Crack in the coolant reservoir, losing coolant. 
30000 mi

US $100
Ignition key switch went out 
43000 mi

US $650
air-water separator 
45000 mi

US $2000
Rear Main Seal 

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2000 Porsche Boxster 2dr Convertible

217-horsepower 2.7L H6 5-speed manual RWD

51000 mi

US $3600
replaced the clutch and replaced the bearing between the engine and transmission which showed wear 
55000 mi

US $3500
replace oxygen sensor and oil separator 
45000 mi

US $3600
Variable camshaft timing system failure. Variocam actuator replaced and DME computer repaired. 
69000 mi Air Oil Separator Failure 
69000 mi

US $700
Water pump replacement 
74400 mi Waterpump replaced earlier this year was leaking. Shop replaced under warranty. 
82000 mi

US $1200
Leaking coolant reservoir was replaced.  
155440 mi

US $90
cam sensor bank 1 replaced; reset CEL. 
156040 mi

US $20
coolant overflow bottle cap [update to current style] 
172000 mi

US $50
Air Oil Separator AOS replacement; common failure , with exhaust smoking slightly on initial start-up .... also air filter replaced. 
97000 mi water pump and v-belt replaced 
34000 mi

US $2400
Coolant bottle failed, dumped more than 50% of coolant in rear trunk and on garage floor. Did NOT happen while in motion. No engine damage. Vehicle was returned to me with a big dent in the door also. Fixed by dealer at no charge. 
67000 mi pulleys tensioners and belt 
76300 mi

US $2000
engine warning light 
22200 mi

US $60
Sleeves from cat pipe to muffler opened up. Caused excessivley loud noise. Resecured w/new locking nuts. 
23200 mi

US $420
Check engine light came on. Diagnosed as bad air mass meter. Air mass meter replaced. 
54600 mi

US $1500
Water pump blew at track. 
89000 mi

US $1100
water pump was making noise, bearing/pump replaced 
110300 mi

US $650
ignition swirch/unit failed and replaced 
114000 mi

US $1200
radiator cracked, replaced by dealer 
117000 mi

US $960
MAF failure identfied by CEL and new air filter installed 
126000 mi

US $125
CEL: code P0430. Dealer says new catalytic converter needed 
56000 mi ignition switch had issue, the key failed to turn and was stuck. Happened over a year ago as well so this time was replaced under that repairs warranty 
65720 mi

€400
Water pump replaced radiator overfill tank, hoses replaced. 
71300 mi Check engine light appeared after exhaust backfired and lost power and compression in 2nd gear. Filled gas tank full with premium gas of 98 octane. Car ran good again but check engine light still on. Mechanic cleaned sensor for free. 
69100 mi

US $120
Replaced Engine mount DIY 
73000 mi

US $300
AOS failed: 200$ 
77300 mi

US $200
Replace Oil Filler tube 
80100 mi

US $300
Oil filler tube broke. After repair still leaks. 
89000 mi

US $1000
Air Oil Separator (AOS)failed, AOS replaced.Spark plugs fouled, replaced.  
89000 mi

US $1600
thermostat stuck, engine overheated. 
89000 mi

US $800
losing coolant, water pump removal revealed impeller fins worn off. 
56000 mi

US $270
Mass Air Flow sensor- Problem diagnosed by dealer at no charge. Repaired by owner, approx. repair cost $270. 
59000 mi

US $580
Replaced cracked coolant tank. 
69000 mi

US $745
Cracked exhaust manifold 
98000 mi

US $475
Leaking spark plug tubes 
103000 mi

US $1250
water pump failed 
124000 mi

US $1800
Air oil separator failed - needed to be replaced. Fouled spark plugs also need to be replaced, not yet done. Found all four O2 sensors had also failed. 
132800 mi

US $800
Mass air flow sensor failed - replaced. Cracked oil filler tube - repaired. 
144500 mi

US $1917
Check engine light 
154000 mi

US $1500
Replace ignition switch module. 
47000 mi

US $300
Coolant reservoir. 
47000 mi

US $300
CEL codes. 
113000 mi

US $280
CEL with P1128 and P1130. Replaced AOS (Air Oil Separator) to resolve. 
135000 mi

US $50
Coolant leak from from the front of the engine as noted from the puddle of antifreeze under the car. This has yet to be repaired, and it's sitting in my garage waiting for me to find some spare time. 
140000 mi

US $1200
Front bumper removed and both front radiators cleaned. Rt Front radiator had blown fuze too. No more overheating observed after repair 
54000 mi

US $200
replace ignition switch 
71000 mi

US $500
Cracked coolant over-flow tank was diagnosed and replaced. owner bought part at dealer, $326. installed by independent shop $150 
75000 mi

US $59
Air-Oil Separator was the cause of the previous 'squeal'. AOS failure a common problem with this car, this age and mileage. repaired by owner 

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2000 Porsche Boxster 2-door

6-cylinder automatic 2WD

42160 mi

$4000
Regular service discovered MAF faulty and needed replacing. Replaced oil filler neck. 

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1999 Porsche Boxster

Engine not specified

60140 mi

C $250
Some lines were leaking oil, simply old age. 
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. 
61200 mi

US $5900
Clutch , flywheel, ims bearing retrofit, water pump 
70900 mi

US $1000
Coolant leak. Replaced coolant tank and cap. 
73000 mi

US $100
Check engine light. Vacuum line vibrating against engine. Cut and rerouted . Sensors checked. 
63000 mi

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

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1999 Porsche Boxster 2-door

6-cylinder manual 2WD

76000 mi Weird issue with temp sensor/ECU.(Works fine with MAF disconnected). 
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. 
88000 mi

US $400
Leak in coolant overflow tank. Replacement part ordered but not yet installed. Cracked coolant overflow tank replaced. 
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. 
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. 
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. 
45000 mi

US $250
Cracked coolant tank became increasingly leaky after long road trip. Replaced old tank. 
68300 mi

US $600
Serpentine belt pullies and bearings were worn out and needed replacement. Cold air intake fan needed replacement as well. 
31700 mi

US $240
Replaced fuel exhaust vent valve because dealer broke it and did not mention it after they tried to hide it. 
83000 mi

US $800
coolant storage tank cracked - typical of older Boxsters. 
97000 mi

US $300
Some widget valve in the emissions system was bad (formerly this function was performed by PCV valves). 
102000 mi

US $3000
Rear main seal leaking.  
60000 mi

US $300
Front engine mount was worn out. Replaced with new mount. 
129000 mi

US $350
Owner replaced water pump/thermostat and all coolant. 
89000 mi When sold to a dealer the Boxster had A LOT of repairs coming its way...needed gaskets, engine overhaul... 
31000 mi

US $216
Replaced Ignition Switch 
35000 mi

US $500
One O2 sensor replaced 
45200 mi

US $320
Anti freeze was a bit low making the idiot light come on under hard acceleration, resulting in a CEL. 
89000 mi

US $45
Ignition switch replaced. 
90000 mi

US $950
Front engine mount failed. Rubber insert cracked. Replaced with factory new mount. 
80000 mi

US $300
Water pump was leaking at the bearing seal. Part was ordered on line and replaced by me 
82000 mi

US $47
replace ignition coil pack 
85000 mi

US $250
Coolant tank failed, had to be replaced 
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. 

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1999 Porsche Boxster 2-door

6-cylinder automatic 2WD

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. 
55000 mi

US $220
Cracked coolant tank 
78000 mi

US $337
Replaced worn out motor mount. 
80000 mi

US $250
Alarm and immobilization connector came loose on M535 unit causing car to not start. 
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. 
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. 
85500 mi

US $850
Water pump failure, water pump replaced with OEM. Serpentine belt showed wear and replaced. 

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